{"id":3754,"date":"2026-07-15T11:57:52","date_gmt":"2026-07-15T03:57:52","guid":{"rendered":"https:\/\/quartz-grinding.epic-powder.com\/?p=3754"},"modified":"2026-07-15T11:57:55","modified_gmt":"2026-07-15T03:57:55","slug":"is-quartz-silicon-dioxide-a-deep-dive-from-geological-crystallization-to-grinding-process","status":"publish","type":"post","link":"https:\/\/quartz-grinding.epic-powder.com\/vi\/is-quartz-silicon-dioxide-a-deep-dive-from-geological-crystallization-to-grinding-process\/","title":{"rendered":"Th\u1ea1ch anh c\u00f3 ph\u1ea3i l\u00e0 silic dioxide? Kh\u00e1m ph\u00e1 chuy\u00ean s\u00e2u t\u1eeb qu\u00e1 tr\u00ecnh k\u1ebft tinh \u0111\u1ecba ch\u1ea5t \u0111\u1ebfn qu\u00e1 tr\u00ecnh nghi\u1ec1n."},"content":{"rendered":"<p>Trong c\u00e1c l\u0129nh v\u1ef1c \u0111\u1ecba ch\u1ea5t, khoa h\u1ecdc v\u1eadt li\u1ec7u v\u00e0 c\u00f4ng nghi\u1ec7p ch\u1ebf bi\u1ebfn kho\u00e1ng s\u1ea3n, \u201c<strong>th\u1ea1ch anh<\/strong>&quot; V\u00e0 &quot;<strong>silica<\/strong>\u201cTh\u1ea1ch anh\u201d v\u00e0 \u201csilicon dioxide\u201d l\u00e0 hai thu\u1eadt ng\u1eef th\u01b0\u1eddng g\u1eb7p. Nhi\u1ec1u ng\u01b0\u1eddi th\u1eafc m\u1eafc: Th\u1ea1ch anh c\u00f3 gi\u1ed1ng h\u1ec7t silica kh\u00f4ng? C\u00f3 s\u1ef1 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ho\u00e0n to\u00e0n gi\u1eefa hai ch\u1ea5t n\u00e0y hay c\u00f3 nh\u1eefng kh\u00e1c bi\u1ec7t nh\u1ecf? B\u00e0i vi\u1ebft n\u00e0y s\u1ebd ph\u00e2n t\u00edch chi ti\u1ebft c\u00e1c m\u1ed1i li\u00ean h\u1ec7 v\u00e0 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u00fang t\u1eeb c\u00e1c kh\u00eda c\u1ea1nh v\u1ec1 th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, c\u1ea5u tr\u00fac kho\u00e1ng v\u1eadt, h\u00ecnh th\u00e1i v\u1eadt l\u00fd v\u00e0 \u0111\u1eb7c \u0111i\u1ec3m gia c\u00f4ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">I. Silicon Dioxide: B\u1ea3n ch\u1ea5t h\u00f3a h\u1ecdc v\u00e0 n\u1ec1n t\u1ea3ng c\u1ea5u tr\u00fac<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"553\" src=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2026\/07\/silicon-dioxide2.webp\" alt=\"silicon dioxide2\" class=\"wp-image-3756\" srcset=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2026\/07\/silicon-dioxide2.webp 800w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2026\/07\/silicon-dioxide2-300x207.webp 300w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2026\/07\/silicon-dioxide2-768x531.webp 768w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2026\/07\/silicon-dioxide2-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Silic dioxide, v\u1edbi c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc SiO2, l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t c\u1ed9ng h\u00f3a tr\u1ecb \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb hai nguy\u00ean t\u1ed1: silic (Si) v\u00e0 oxy (O). \u1ede tr\u1ea1ng th\u00e1i l\u00fd t\u01b0\u1edfng, m\u1ed7i nguy\u00ean t\u1eed silic li\u00ean k\u1ebft v\u1edbi b\u1ed1n nguy\u00ean t\u1eed oxy th\u00f4ng qua li\u00ean k\u1ebft c\u1ed9ng h\u00f3a tr\u1ecb, t\u1ea1o th\u00e0nh c\u1ea5u tr\u00fac t\u1ee9 di\u1ec7n \u1ed5n \u0111\u1ecbnh. C\u1ea5u tr\u00fac n\u00e0y m\u1edf r\u1ed9ng v\u00f4 h\u1ea1n trong kh\u00f4ng gian, t\u1ea1o n\u00ean m\u1ed9t m\u1ea1ng tinh th\u1ec3 c\u1ed9ng h\u00f3a tr\u1ecb kh\u1ed5ng l\u1ed3 c\u1ee7a silic dioxide.<\/p>\n\n\n\n<p>V\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc, silica l\u00e0 m\u1ed9t oxit c\u1ef1c k\u1ef3 \u1ed5n \u0111\u1ecbnh, kh\u00f4ng tan trong n\u01b0\u1edbc, c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t cao v\u00e0 tr\u01a1 v\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc. N\u00f3 kh\u00f4ng ch\u1ec9 l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a v\u1ecf Tr\u00e1i \u0111\u1ea5t (chi\u1ebfm kho\u1ea3ng 591 t\u1ea5n kh\u1ed1i l\u01b0\u1ee3ng v\u1ecf Tr\u00e1i \u0111\u1ea5t) m\u00e0 c\u00f2n l\u00e0 th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a c\u00e1c v\u1eadt li\u1ec7u t\u1ef1 nhi\u00ean nh\u01b0 c\u00e1t, \u0111\u00e1 v\u00e0 kho\u00e1ng ch\u1ea5t. Trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p, n\u00f3 l\u00e0 th\u00e0nh ph\u1ea7n m\u1ee5c ti\u00eau cu\u1ed1i c\u00f9ng c\u1ee7a qu\u00e1 tr\u00ecnh nghi\u1ec1n v\u00e0 ch\u1ebf bi\u1ebfn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">II. <a href=\"https:\/\/quartz-grinding.epic-powder.com\/vi\/\">Th\u1ea1ch anh<\/a>Nh\u1eefng th\u00e1ch th\u1ee9c trong qu\u00e1 tr\u00ecnh k\u1ebft tinh t\u1ef1 nhi\u00ean v\u00e0 nghi\u1ec1n m\u1ecbn<\/h2>\n\n\n\n<p>Th\u1ea1ch anh l\u00e0 d\u1ea1ng tinh th\u1ec3 silica ph\u1ed5 bi\u1ebfn v\u00e0 \u0111i\u1ec3n h\u00ecnh nh\u1ea5t trong t\u1ef1 nhi\u00ean, \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u00e0 kho\u00e1ng ch\u1ea5t oxit thu\u1ed9c h\u1ec7 tinh th\u1ec3 tam gi\u00e1c. C\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc c\u1ee7a n\u00f3 c\u0169ng l\u00e0 SiO2, nh\u01b0ng n\u00f3 s\u1edf h\u1eefu c\u1ea5u tr\u00fac tinh th\u1ec3 x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng\u2014c\u1ee5 th\u1ec3 l\u00e0 c\u00e1c tinh th\u1ec3 l\u0103ng tr\u1ee5 l\u1ee5c gi\u00e1c. Th\u1ea1ch anh tinh khi\u1ebft kh\u00f4ng m\u00e0u v\u00e0 trong su\u1ed1t (gi\u1ed1ng nh\u01b0 \u0111\u00e1 th\u1ea1ch anh), trong khi n\u00f3 c\u00f3 th\u1ec3 c\u00f3 m\u00e0u t\u00edm, v\u00e0ng, x\u00e1m kh\u00f3i v\u00e0 c\u00e1c m\u00e0u kh\u00e1c khi c\u00f3 t\u1ea1p ch\u1ea5t.<\/p>\n\n\n\n<p>T\u1eeb g\u00f3c \u0111\u1ed9 ch\u1ebf bi\u1ebfn kho\u00e1ng s\u1ea3n, th\u1ea1ch anh t\u1ef1 nhi\u00ean h\u1ea7u nh\u01b0 kh\u00f4ng bao gi\u1edd ho\u00e0n to\u00e0n tinh khi\u1ebft; n\u00f3 th\u01b0\u1eddng ch\u1ee9a c\u00e1c nguy\u00ean t\u1ed1 vi l\u01b0\u1ee3ng ho\u1eb7c t\u1ea1p ch\u1ea5t nh\u01b0 nh\u00f4m (Al), s\u1eaft (Fe) v\u00e0 canxi (Ca). Th\u1ea1ch anh c\u00f3 \u0111\u1ed9 c\u1ee9ng Mohs cao l\u00e0 7 v\u00e0 kh\u00f4ng c\u00f3 khe n\u1ee9t (th\u01b0\u1eddng th\u1ec3 hi\u1ec7n v\u1ebft n\u1ee9t v\u1ecf s\u00f2). \u0110i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t v\u1eadt li\u1ec7u c\u1ee9ng v\u00e0 c\u00f3 t\u00ednh m\u00e0i m\u00f2n cao trong qu\u00e1 tr\u00ecnh nghi\u1ec1n c\u00f4ng nghi\u1ec7p. \u0110\u1ed9 b\u1ec1n n\u00e9n v\u00e0 kh\u1ea3 n\u0103ng m\u00e0i m\u00f2n c\u1ef1c cao c\u1ee7a n\u00f3 \u0111\u1eb7t ra nh\u1eefng y\u00eau c\u1ea7u kh\u1eaft khe \u0111\u1ed1i v\u1edbi v\u1eadt li\u1ec7u ch\u1ecbu m\u00e0i m\u00f2n v\u00e0 thi\u1ebft k\u1ebf c\u00f4ng su\u1ea5t c\u1ee7a thi\u1ebft b\u1ecb nghi\u1ec1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">III. \u201cT\u01b0\u01a1ng \u0111\u01b0\u01a1ng\u201d so v\u1edbi \u201cKh\u00e1c bi\u1ec7t\u201d: T\u1eeb kho\u00e1ng ch\u1ea5t v\u0129 m\u00f4 \u0111\u1ebfn ng\u00e0nh c\u00f4ng nghi\u1ec7p b\u1ed9t<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. M\u1ed1i quan h\u1ec7 gi\u1eefa th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc s\u01a1 c\u1ea5p v\u00e0 th\u1ee9 c\u1ea5p: L\u00fd t\u01b0\u1edfng so v\u1edbi th\u1ef1c t\u1ebf<\/h3>\n\n\n\n<p>M\u1eb7c d\u00f9 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a th\u1ea1ch anh l\u00e0 silica, nh\u01b0ng hai ch\u1ea5t n\u00e0y kh\u00f4ng ho\u00e0n to\u00e0n gi\u1ed1ng nhau. Silica tinh khi\u1ebft\u2014ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ed9t silica t\u1ed5ng h\u1ee3p c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao\u2014\u0111\u1ea1i di\u1ec7n cho \u201ctr\u1ea1ng th\u00e1i l\u00fd t\u01b0\u1edfng\u201d. Ng\u01b0\u1ee3c l\u1ea1i, th\u1ea1ch anh t\u1ef1 nhi\u00ean l\u00e0 \u201cbi\u1ec3u hi\u1ec7n th\u1ef1c t\u1ebf\u201d c\u1ee7a n\u00f3 v\u00e0 ch\u1eafc ch\u1eafn ch\u1ee9a c\u00e1c t\u1ea1p ch\u1ea5t. Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p ch\u1ebf bi\u1ebfn, qu\u00e1 tr\u00ecnh tinh ch\u1ebf v\u00e0 nghi\u1ec1n th\u01b0\u1eddng di\u1ec5n ra \u0111\u1ed3ng th\u1eddi. \u0110\u1ea7u ti\u00ean, l\u1ef1c c\u01a1 h\u1ecdc t\u00e1ch th\u1ea1ch anh kh\u1ecfi c\u00e1c kho\u00e1ng ch\u1ea5t t\u1ea1p. Sau \u0111\u00f3, thi\u1ebft b\u1ecb l\u00e0m gi\u00e0u lo\u1ea1i b\u1ecf s\u1eaft v\u00e0 c\u00e1c t\u1ea1p ch\u1ea5t kh\u00e1c \u0111\u1ec3 thu \u0111\u01b0\u1ee3c b\u1ed9t silica c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao cu\u1ed1i c\u00f9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. S\u1ef1 \u0111a d\u1ea1ng h\u00ecnh th\u00e1i v\u00e0 h\u00e0nh vi nghi\u1ec1n n\u00e1t<\/h3>\n\n\n\n<p>Silica t\u1ed3n t\u1ea1i \u1edf nhi\u1ec1u d\u1ea1ng \u0111a d\u1ea1ng h\u01a1n so v\u1edbi ch\u1ec9 ri\u00eang th\u1ea1ch anh, v\u00e0 c\u00e1c d\u1ea1ng kh\u00e1c nhau n\u00e0y quy\u1ebft \u0111\u1ecbnh tr\u1ef1c ti\u1ebfp vi\u1ec7c l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb nghi\u1ec1n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Silica tinh th\u1ec3:<\/strong> V\u00ed d\u1ee5 bao g\u1ed3m th\u1ea1ch anh m\u1ea1ch v\u00e0 sa th\u1ea1ch th\u1ea1ch anh, c\u00f3 n\u0103ng l\u01b0\u1ee3ng m\u1ea1ng tinh th\u1ec3 cao v\u00e0 c\u1ea5u tr\u00fac d\u00e0y \u0111\u1eb7c. Khi nghi\u1ec1n b\u1eb1ng m\u00e1y nghi\u1ec1n bi th\u00f4ng th\u01b0\u1eddng ho\u1eb7c m\u00e1y nghi\u1ec1n tr\u1ee5c \u0111\u1ee9ng (VRM), m\u1ee9c ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng r\u1ea5t cao. Ch\u00fang th\u01b0\u1eddng c\u1ea7n \u0111\u1ebfn tr\u1ee5c nghi\u1ec1n \u00e1p su\u1ea5t cao (HPGR) \u0111\u1ec3 nghi\u1ec1n s\u01a1 b\u1ed9 nh\u1eb1m t\u1ea1o ra c\u00e1c v\u1ebft n\u1ee9t si\u00eau nh\u1ecf, t\u1eeb \u0111\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 nghi\u1ec1n ti\u1ebfp theo.<\/li>\n\n\n\n<li><strong>Silica v\u00f4 \u0111\u1ecbnh h\u00ecnh\/tinh th\u1ec3 \u1ea9n:<\/strong> V\u00ed d\u1ee5 bao g\u1ed3m m\u00e3 n\u00e3o, \u0111\u1ea5t t\u1ea3o c\u00e1t v\u00e0 opal. Trong s\u1ed1 \u0111\u00f3, c\u00e1c c\u1ea5u tr\u00fac v\u00f4 \u0111\u1ecbnh h\u00ecnh x\u1ed1p nh\u01b0 \u0111\u1ea5t t\u1ea3o c\u00e1t t\u01b0\u01a1ng \u0111\u1ed1i m\u1ec1m. Qu\u00e1 tr\u00ecnh nghi\u1ec1n ch\u00fang t\u1eadp trung nhi\u1ec1u h\u01a1n v\u00e0o &quot;ph\u00e1 v\u1ee1 c\u00e1c c\u1ee5m&quot; h\u01a1n l\u00e0 c\u1eaft m\u1ea1nh. Do \u0111\u00f3, m\u00e1y nghi\u1ec1n va \u0111\u1eadp c\u01a1 h\u1ecdc ho\u1eb7c m\u00e1y nghi\u1ec1n tia th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u1ea5u tr\u00fac vi x\u1ed1p \u0111\u1ed9c \u0111\u00e1o c\u1ee7a ch\u00fang.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. S\u1ef1 ch\u1ed3ng ch\u00e9o v\u00e0 tr\u1ecdng t\u00e2m c\u1ee7a c\u00e1c l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng (Ph\u00e2n lo\u1ea1i k\u00edch th\u01b0\u1edbc l\u01b0\u1edbi v\u1eadt li\u1ec7u)<\/h3>\n\n\n\n<p>Khi thi\u1ebft b\u1ecb nghi\u1ec1n li\u00ean t\u1ee5c ph\u00e2n t\u00e1ch c\u00e1c h\u1ea1t th\u1ea1ch anh, silica gi\u1ea3i ph\u00f3ng nhi\u1ec1u gi\u00e1 tr\u1ecb \u1ee9ng d\u1ee5ng kh\u00e1c nhau \u1edf c\u00e1c m\u1ee9c \u0111\u1ed9 m\u1ecbn kh\u00e1c nhau (k\u00edch th\u01b0\u1edbc m\u1eaft l\u01b0\u1edbi):<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>B\u1ed9t th\u00f4\/m\u1ecbn (20\u2013200 mesh):<\/strong> Ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng m\u00e1y nghi\u1ec1n thanh ho\u1eb7c m\u00e1y nghi\u1ec1n \u0111\u1ee9ng ti\u00eau chu\u1ea9n, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t th\u1ee7y tinh, g\u1ed1m s\u1ee9 v\u00e0 ch\u1ea5t tr\u1ee3 dung luy\u1ec7n kim.<\/li>\n\n\n\n<li><strong>B\u1ed9t si\u00eau m\u1ecbn \u1edf c\u1ea5p \u0111\u1ed9 micron (325\u20132500 mesh):<\/strong> Th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1edfi <a href=\"https:\/\/quartz-grinding.epic-powder.com\/vi\/machines\/ball-mill\/\">m\u00e1y nghi\u1ec1n bi<\/a> ho\u1eb7c m\u00e1y nghi\u1ec1n tr\u1ee5c l\u0103n, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i l\u00e0m ch\u1ea5t \u0111\u1ed9n trong s\u01a1n ph\u1ee7, cao su v\u00e0 nh\u1ef1a.<\/li>\n\n\n\n<li><strong>M\u1ee9c \u0111\u1ed9 nano\/d\u01b0\u1edbi micromet (giao di\u1ec7n quasi-silica):<\/strong> C\u1ea7n ph\u1ea3i nghi\u1ec1n si\u00eau m\u1ecbn th\u00f4ng qua <a href=\"https:\/\/quartz-grinding.epic-powder.com\/vi\/machines\/jet-mill\/\">m\u00e1y nghi\u1ec1n ph\u1ea3n l\u1ef1c<\/a> ho\u1eb7c m\u00e1y nghi\u1ec1n khu\u1ea5y (m\u00e1y nghi\u1ec1n bi), \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c l\u0129nh v\u1ef1c cao c\u1ea5p nh\u01b0 h\u1ee3p ch\u1ea5t \u0111\u00fac epoxy (EMC) cho ch\u1ea5t n\u1ec1n \u0111i\u1ec7n t\u1eed (t\u1ea5m nhi\u1ec1u l\u1edbp ph\u1ee7 \u0111\u1ed3ng) v\u00e0 s\u1ee3i quang.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"480\" height=\"447\" src=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/05\/quartz-1.webp\" alt=\"th\u1ea1ch anh (1)\" class=\"wp-image-3304\" srcset=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/05\/quartz-1.webp 480w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/05\/quartz-1-300x279.webp 300w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/05\/quartz-1-13x12.webp 13w\" sizes=\"(max-width: 480px) 100vw, 480px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">IV. T\u1eeb Th\u1ea1ch anh \u0111\u1ebfn Silica: S\u1ef1 ph\u00e2n r\u00e3 c\u01a1 h\u1ecdc t\u1ef1 nhi\u00ean v\u00e0 s\u1ef1 t\u00e1i c\u1ea5u tr\u00fac c\u00f4ng nghi\u1ec7p<\/h2>\n\n\n\n<p>Thi\u00ean nhi\u00ean k\u1ebft h\u1ee3p c\u00e1c ph\u00e2n t\u1eed SiO2 \u0111\u01a1n gi\u1ea3n th\u00e0nh m\u1ed9t th\u1ebf gi\u1edbi kho\u00e1ng v\u1eadt ph\u1ee9c t\u1ea1p v\u00e0 \u0111a d\u1ea1ng th\u00f4ng qua c\u00e1c qu\u00e1 tr\u00ecnh \u0111\u1ecba ch\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Khi silica k\u1ebft tinh ch\u1eadm d\u01b0\u1edbi nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u00e1p su\u1ea5t cao \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c tinh th\u1ec3 ho\u00e0n h\u1ea3o, n\u00f3 tr\u1edf n\u00ean trong su\u1ed1t nh\u01b0 pha l\u00ea. <strong>tinh th\u1ec3 \u0111\u00e1<\/strong>;<\/li>\n\n\n\n<li>Khi gel silica k\u1ebft t\u1ee7a t\u1eebng l\u1edbp trong c\u00e1c khe \u0111\u00e1 v\u00e0 b\u1ecb m\u1ea5t n\u01b0\u1edbc, n\u00f3 t\u1ea1o th\u00e0nh nh\u1eefng v\u00e2n s\u1ecdc \u0111\u1eb9p m\u1eaft. <strong>m\u00e3 n\u00e3o<\/strong>;<\/li>\n\n\n\n<li>Khi dung d\u1ecbch silica ngu\u1ed9i nhanh \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u1ea5u tr\u00fac v\u00f4 \u0111\u1ecbnh h\u00ecnh, n\u00f3 s\u1ebd tr\u1edf n\u00ean c\u1ee9ng. <strong>\u0111\u00e1 l\u1eeda\/\u0111\u00e1 phi\u1ebfn<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p>Tuy nhi\u00ean, ng\u00e0nh c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb nghi\u1ec1n \u0111\u1ec3 \u0111\u1ea3o ng\u01b0\u1ee3c qu\u00e1 tr\u00ecnh ti\u1ebfn h\u00f3a \u0111\u1ecba ch\u1ea5t n\u00e0y.<\/p>\n\n\n\n<p>C\u00e1c chuy\u1ec3n \u0111\u1ed9ng \u0111\u1ecba ch\u1ea5t m\u1ea5t h\u00e0ng tri\u1ec7u n\u0103m \u0111\u1ec3 t\u00edch t\u1ee5 c\u00e1c ph\u00e2n t\u1eed SiO2 t\u1eeb \u201cd\u01b0\u1edbi l\u00ean\u201d th\u00e0nh c\u00e1c kho\u00e1ng ch\u1ea5t v\u0129 m\u00f4. Ng\u01b0\u1ee3c l\u1ea1i ho\u00e0n to\u00e0n, thi\u1ebft b\u1ecb nghi\u1ec1n s\u1eed d\u1ee5ng \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc m\u1ea1nh \u0111\u1ec3 ph\u00e1 v\u1ee1 c\u00e1c kho\u00e1ng ch\u1ea5t n\u00e0y t\u1eeb \u201ctr\u00ean xu\u1ed1ng\u201d. Th\u1ea1ch anh t\u1ef1 nhi\u00ean c\u1ee9ng \u0111\u01b0\u1ee3c t\u00e1ch ra v\u00e0 ph\u00e2n r\u00e3 b\u1edfi nhi\u1ec1u l\u1ef1c m\u1ea1nh kh\u00e1c nhau\u2014s\u1ef1 va \u0111\u1eadp c\u1ee7a c\u00e1c vi\u00ean bi th\u00e9p trong m\u00e1y nghi\u1ec1n bi, s\u1ef1 n\u00e9n con l\u0103n tr\u00ean \u0111\u0129a trong m\u00e1y nghi\u1ec1n \u0111\u1ee9ng, v\u00e0 c\u00e1c lu\u1ed3ng kh\u00ed t\u1ed1c \u0111\u1ed9 cao ng\u01b0\u1ee3c chi\u1ec1u trong m\u00e1y nghi\u1ec1n tia. Khi c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m v\u0129 m\u00f4 c\u1ee7a n\u00f3 d\u1ea7n bi\u1ebfn m\u1ea5t, v\u1eadt li\u1ec7u tr\u1edf l\u1ea1i d\u1ea1ng vi m\u00f4, ti\u1ebfn g\u1ea7n \u0111\u1ebfn b\u1ea3n ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a n\u00f3: b\u1ed9t si\u00eau m\u1ecbn SiO2 tinh khi\u1ebft. Trong qu\u00e1 tr\u00ecnh nghi\u1ec1n si\u00eau m\u1ecbn n\u00e0y, n\u0103ng l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c h\u1ea1t \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t m\u1ea1nh m\u1ebd. \u0110i\u1ec1u n\u00e0y l\u00e0m l\u1ed9 ra nhi\u1ec1u v\u1ecb tr\u00ed ho\u1ea1t \u0111\u1ed9ng h\u01a1n, cu\u1ed1i c\u00f9ng \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 chuy\u1ec3n \u0111\u1ed5i ho\u00e0n to\u00e0n t\u1eeb \u201ckho\u00e1ng ch\u1ea5t t\u1ef1 nhi\u00ean\u201d th\u00e0nh \u201cv\u1eadt li\u1ec7u ch\u1ee9c n\u0103ng hi\u1ec7n \u0111\u1ea1i\u201d.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2026\/04\/Ultrafine-Quartz-Grinding.webp\" alt=\"nghi\u1ec1n si\u00eau m\u1ecbn th\u1ea1ch anh\" class=\"wp-image-3710\" srcset=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2026\/04\/Ultrafine-Quartz-Grinding.webp 800w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2026\/04\/Ultrafine-Quartz-Grinding-300x200.webp 300w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2026\/04\/Ultrafine-Quartz-Grinding-768x512.webp 768w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2026\/04\/Ultrafine-Quartz-Grinding-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">nghi\u1ec1n si\u00eau m\u1ecbn th\u1ea1ch anh <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">K\u1ebft lu\u1eadn: C\u00f3 m\u1ed1i li\u00ean h\u1ec7 nh\u01b0ng kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t \u2014 S\u1ef1 th\u1ed1ng nh\u1ea5t v\u1ec1 b\u1ea3n ch\u1ea5t, h\u00ecnh th\u1ee9c v\u00e0 qu\u00e1 tr\u00ecnh.<\/h2>\n\n\n\n<p>Tr\u1edf l\u1ea1i c\u00e2u h\u1ecfi ban \u0111\u1ea7u: Th\u1ea1ch anh c\u00f3 ph\u1ea3i l\u00e0 silica kh\u00f4ng?<\/p>\n\n\n\n<p>M\u1ed9t ph\u00e1t bi\u1ec3u ch\u00ednh x\u00e1c h\u01a1n s\u1ebd l\u00e0: Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc ch\u00ednh c\u1ee7a th\u1ea1ch anh l\u00e0 silica; n\u00f3 l\u00e0 d\u1ea1ng tinh th\u1ec3 silica ph\u1ed5 bi\u1ebfn nh\u1ea5t trong t\u1ef1 nhi\u00ean, nh\u01b0ng hai ch\u1ea5t n\u00e0y kh\u00f4ng ho\u00e0n to\u00e0n gi\u1ed1ng nhau.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Silicon Dioxide<\/strong> \u0110\u00e2y l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m h\u00f3a h\u1ecdc \u0111\u1ea1i di\u1ec7n cho h\u1ee3p ch\u1ea5t c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb Si v\u00e0 O.<\/li>\n\n\n\n<li><strong>Th\u1ea1ch anh<\/strong> \u0110\u00e2y l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m kho\u00e1ng v\u1eadt h\u1ecdc c\u1ee5 th\u1ec3 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t lo\u1ea1i kho\u00e1ng v\u1eadt t\u1ef1 nhi\u00ean c\u00f3 c\u1ea5u tr\u00fac tinh th\u1ec3 v\u00e0 t\u00ednh ch\u1ea5t v\u1eadt l\u00fd ri\u00eang bi\u1ec7t.<\/li>\n\n\n\n<li><strong>C\u00e1t th\u1ea1ch anh\/B\u1ed9t silica<\/strong> \u0110\u00e2y l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m trong c\u00f4ng nghi\u1ec7p v\u00e0 khoa h\u1ecdc v\u1eadt li\u1ec7u, \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00e1c d\u1ea1ng silica \u0111\u01b0\u1ee3c th\u01b0\u01a1ng m\u1ea1i h\u00f3a c\u00f3 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t (PSD) c\u1ee5 th\u1ec3 sau khi th\u1ea1ch anh t\u1ef1 nhi\u00ean \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u00ecnh l\u1ea1i v\u1ec1 m\u1eb7t v\u1eadt l\u00fd b\u1eb1ng thi\u1ebft b\u1ecb nghi\u1ec1n.<\/li>\n<\/ul>\n\n\n\n<p>Hi\u1ec3u \u0111\u01b0\u1ee3c m\u1ed1i quan h\u1ec7 n\u00e0y mang l\u1ea1i hai hi\u1ec3u bi\u1ebft ch\u00ednh. Th\u1ee9 nh\u1ea5t, n\u00f3 l\u00e0m n\u1ed5i b\u1eadt s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a c\u00e1c kho\u00e1ng ch\u1ea5t t\u1ef1 nhi\u00ean, trong \u0111\u00f3 \u0111\u1ed9 c\u1ee9ng v\u00e0 t\u1ea1p ch\u1ea5t l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 ph\u00e2n bi\u1ec7t th\u1ea1ch anh t\u1ef1 nhi\u00ean v\u1edbi silica tinh khi\u1ebft. Th\u1ee9 hai, n\u00f3 h\u00e9 l\u1ed9 b\u1ea3n ch\u1ea5t c\u1ee7a qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn c\u00f4ng nghi\u1ec7p.<\/p>\n\n\n\n<p>H\u00e0nh tr\u00ecnh t\u1eeb th\u1ea1ch anh t\u1ef1 nhi\u00ean \u0111\u1ebfn b\u1ed9t si\u00eau m\u1ecbn th\u1ec3 hi\u1ec7n m\u1ed9t logic h\u1ea5p d\u1eabn: ng\u00e0nh c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i \u0111ang \u201c\u0111\u1ecbnh h\u00ecnh l\u1ea1i t\u1ef1 nhi\u00ean b\u1eb1ng l\u1ef1c c\u01a1 h\u1ecdc\u201d. Cu\u1ed1i c\u00f9ng, \u0111i\u1ec1u n\u00e0y m\u1edf ra m\u1ed9t l\u1ed9 tr\u00ecnh nghi\u00ean c\u1ee9u kh\u00e9p k\u00edn t\u1eeb \u201cc\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd c\u1ee7a qu\u1eb7ng\u201d \u0111\u1ebfn \u201cc\u00e1c \u1ee9ng d\u1ee5ng ti\u00ean ti\u1ebfn\u201d cho c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 khoa h\u1ecdc v\u1eadt li\u1ec7u v\u00e0 k\u1ef9 thu\u1eadt b\u1ed9t.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized is-style-rounded\"><img loading=\"lazy\" decoding=\"async\" width=\"721\" height=\"721\" src=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen.webp\" alt=\"Emily Chen\" class=\"wp-image-3549\" style=\"width:150px;height:150px\" srcset=\"https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen.webp 721w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-300x300.webp 300w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-150x150.webp 150w, https:\/\/quartz-grinding.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-12x12.webp 12w\" sizes=\"(max-width: 721px) 100vw, 721px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote has-text-align-center is-style-large is-layout-flow wp-block-quote-is-layout-flow\">\n<p>C\u1ea3m \u01a1n b\u1ea1n \u0111\u00e3 \u0111\u1ecdc. T\u00f4i hy v\u1ecdng b\u00e0i vi\u1ebft c\u1ee7a t\u00f4i h\u1eefu \u00edch. Vui l\u00f2ng \u0111\u1ec3 l\u1ea1i b\u00ecnh lu\u1eadn b\u00ean d\u01b0\u1edbi. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 li\u00ean h\u1ec7 v\u1edbi b\u1ed9 ph\u1eadn ch\u0103m s\u00f3c kh\u00e1ch h\u00e0ng tr\u1ef1c tuy\u1ebfn c\u1ee7a Zelda n\u1ebfu c\u00f3 b\u1ea5t k\u1ef3 th\u1eafc m\u1eafc n\u00e0o kh\u00e1c.<\/p>\n<cite>                                                                                                                                                                                  \u2014 \u0110\u0103ng b\u1edfi <a href=\"https:\/\/www.linkedin.com\/company\/76603359\/admin\/dashboard\/\">Emily Chen<\/a><\/cite><\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f16-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"16\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/vi\/wp-json\/wp\/v2\/posts\/3754#wpcf7-f16-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/vi\/wp-json\/wp\/v2\/posts\/3754#wpcf7-f16-o1\">\n<div style=\"display: none;\">\n<input type=\"hidden\" name=\"_wpcf7\" value=\"16\" \/>\n<input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.0.6\" \/>\n<input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/>\n<input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16-o1\" \/>\n<input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/>\n<input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/div>\n<div class=\"keen-form\">\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"T\u00ean c\u1ee7a b\u1ea1n*\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Email c\u1ee7a b\u1ea1n*\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"pnone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-tel\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Pnone ho\u1eb7c Whatsapp c\u1ee7a b\u1ea1n*\" value=\"\" type=\"tel\" name=\"pnone\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-subject\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"C\u00f4ng ty c\u1ee7a b\u1ea1n\" value=\"\" type=\"text\" name=\"your-subject\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" placeholder=\"Tin nh\u1eafn c\u1ee7a b\u1ea1n\" name=\"your-message\"><\/textarea><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"N\u1ed9p\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.keen-form div{margin-bottom:5px;}\n.keen-form div p{margin-bottom:0px !important;}\n.one-half,.one-third {\n position: relative;\n margin-right: 4%;\n float: left;\n z-index: 99;\n}\n.one-half { width: 48%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 100%;\n margin-right: 0;\n }\n}\n<\/style><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"vi\"\/><\/form>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Trong c\u00e1c l\u0129nh v\u1ef1c \u0111\u1ecba ch\u1ea5t, khoa h\u1ecdc v\u1eadt li\u1ec7u v\u00e0 c\u00f4ng nghi\u1ec7p ch\u1ebf bi\u1ebfn kho\u00e1ng s\u1ea3n, \u201cth\u1ea1ch anh\u201d v\u00e0 \u201csilica\u201d (silicon dioxide) l\u00e0 hai thu\u1eadt ng\u1eef th\u01b0\u1eddng g\u1eb7p. Nhi\u1ec1u ng\u01b0\u1eddi th\u1eafc m\u1eafc: Th\u1ea1ch anh c\u00f3 gi\u1ed1ng h\u1ec7t silica kh\u00f4ng? Gi\u1eefa hai lo\u1ea1i n\u00e0y c\u00f3 s\u1ef1 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ho\u00e0n to\u00e0n hay c\u00f3 nh\u1eefng kh\u00e1c bi\u1ec7t nh\u1ecf? B\u00e0i vi\u1ebft n\u00e0y s\u1ebd ph\u00e2n t\u00edch chi ti\u1ebft c\u00e1c m\u1ed1i li\u00ean h\u1ec7 v\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u00fang [\u2026]<\/p>","protected":false},"author":1,"featured_media":3756,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3754","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ultrafine-air-classifier"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Is Quartz Silicon Dioxide? 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