{"id":16536,"date":"2026-02-11T08:11:29","date_gmt":"2026-02-11T08:11:29","guid":{"rendered":"https:\/\/www.epicmicron.com\/?p=16536"},"modified":"2026-02-11T08:13:08","modified_gmt":"2026-02-11T08:13:08","slug":"ultrafine-grinding-of-magnesium-hydroxide-with-epic-powder-mqw-jet-mill","status":"publish","type":"post","link":"https:\/\/www.epicmicron.com\/vi\/ultrafine-grinding-of-magnesium-hydroxide-with-epic-powder-mqw-jet-mill\/","title":{"rendered":"Nghi\u1ec1n si\u00eau m\u1ecbn magie hydroxit b\u1eb1ng m\u00e1y nghi\u1ec1n Epic Powder MQW Jet Mill"},"content":{"rendered":"

Gi\u1edbi thi\u1ec7u v\u1ec1 Magie hydroxit (Mg(OH)\u2082)<\/h3>\n\n\n\n

Magie hydroxit (Mg(OH)\u2082) l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t v\u00f4 c\u01a1 quan tr\u1ecdng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u01b0 ch\u1ea5t ch\u1ed1ng ch\u00e1y, ch\u1ea5t trung h\u00f2a axit v\u00e0 v\u1eadt li\u1ec7u th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng. N\u00f3 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong c\u00e1c \u1ee9ng d\u1ee5ng hi\u1ec7u su\u1ea5t cao nh\u01b0 polyme ti\u00ean ti\u1ebfn, d\u00e2y \u0111i\u1ec7n v\u00e0 c\u00e1p \u0111i\u1ec7n, v\u00e0 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i. Hi\u1ec7u qu\u1ea3 c\u1ee7a magie hydroxit trong c\u00e1c l\u0129nh v\u1ef1c n\u00e0y ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a b\u1ed9t \u2013 c\u1ee5 th\u1ec3 l\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t, ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t (PSD) v\u00e0 kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n. \u0110\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 c\u00e1c \u0111\u1eb7c t\u00ednh n\u00e0y l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t c\u00f4ng nghi\u1ec7p v\u01b0\u1ee3t tr\u1ed9i v\u00e0 \u0111\u1ed9 tin c\u1eady trong c\u00e1c s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng. Nghi\u1ec1n si\u00eau m\u1ecbn magie hydroxit kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 gi\u1ea3m k\u00edch th\u01b0\u1edbc h\u1ea1t. \u0110\u00f3 l\u00e0 m\u1ed9t quy tr\u00ecnh ph\u1ee9c t\u1ea1p nh\u1eb1m ph\u00e1 v\u1ee1 c\u00e1c c\u1ee5m h\u1ea1t s\u01a1 c\u1ea5p, tinh ch\u1ec9nh ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t v\u00e0 t\u0103ng \u0111\u00e1ng k\u1ec3 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang.<\/p>\n\n\n\n

Nghi\u1ec1n si\u00eau m\u1ecbn b\u1eb1ng M\u00e1y nghi\u1ec1n b\u1ed9t Epic Powder MQW Jet Mill<\/mark><\/h3>\n\n\n\n
\"Nghi\u1ec1n
Nghi\u1ec1n magie hydroxit<\/figcaption><\/figure>\n\n\n\n

C\u00e1c M\u00e1y nghi\u1ec1n b\u1ed9t Epic Powder MQW Jet Mill<\/mark> C\u00f4ng ngh\u1ec7 n\u00e0y th\u1ec3 hi\u1ec7n r\u00f5 n\u00e9t \u0111i\u1ec1u \u0111\u00f3. N\u00f3 t\u1eadn d\u1ee5ng c\u00e1c lu\u1ed3ng kh\u00ed t\u1ed1c \u0111\u1ed9 cao \u0111\u1ec3 t\u1ea1o ra \u0111\u1ed9ng n\u0103ng, khi\u1ebfn c\u00e1c h\u1ea1t va ch\u1ea1m v\u00e0 ph\u00e2n t\u00e1ch hi\u1ec7u qu\u1ea3. Ngo\u00e0i ra, vi\u1ec7c t\u00edch h\u1ee3p b\u1ed9 ph\u00e2n lo\u1ea1i turbo ch\u00ednh x\u00e1c cho ph\u00e9p ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc h\u1ea1t m\u1ed9t c\u00e1ch linh ho\u1ea1t v\u00e0 ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

C\u00f4ng ngh\u1ec7 nghi\u1ec1n b\u1eb1ng tia kh\u00ed n\u00e0y c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i nguy\u00ean li\u1ec7u th\u00f4 c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t 325 mesh (kho\u1ea3ng 44\u00b5m) th\u00e0nh b\u1ed9t si\u00eau m\u1ecbn v\u1edbi k\u00edch th\u01b0\u1edbc h\u1ea1t D97 nh\u1ecf \u0111\u1ebfn 2,04\u00b5m, \u0111\u1ed3ng th\u1eddi duy tr\u00ec n\u0103ng su\u1ea5t c\u00f4ng nghi\u1ec7p \u1ea5n t\u01b0\u1ee3ng l\u00ean \u0111\u1ebfn 200 kg\/gi\u1edd. Hi\u1ec7u su\u1ea5t n\u00e0y \u0111\u1ea3m b\u1ea3o magie hydroxit \u0111\u00e1p \u1ee9ng c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt kh\u1eaft khe c\u1ea7n thi\u1ebft cho c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p th\u1ebf h\u1ec7 m\u1edbi m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn n\u0103ng su\u1ea5t.<\/p>\n\n\n\n

C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n

Nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0o t\u1ed3n t\u1ea1i trong qu\u00e1 tr\u00ecnh nghi\u1ec1n magie hydroxit \u0111\u1ebfn k\u00edch th\u01b0\u1edbc si\u00eau m\u1ecbn?<\/h3>\n\n\n\n
\"Magi\u00ea
Magi\u00ea Hydroxit<\/figcaption><\/figure>\n\n\n\n

Vi\u1ec7c nghi\u1ec1n magie hydroxit (Mg(OH)\u2082) xu\u1ed1ng k\u00edch th\u01b0\u1edbc si\u00eau m\u1ecbn kh\u00f4ng h\u1ec1 \u0111\u01a1n gi\u1ea3n. B\u1ea3n ch\u1ea5t m\u1ec1m v\u00e0 xu h\u01b0\u1edbng k\u1ebft t\u1ee5 m\u1ea1nh c\u1ee7a n\u00f3 khi\u1ebfn c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u01a1 h\u1ecdc truy\u1ec1n th\u1ed1ng\u2014nh\u01b0 nghi\u1ec1n bi\u2014g\u1eb7p kh\u00f3 kh\u0103n. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn hi\u1ec7u su\u1ea5t th\u1ea5p, ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t r\u1ed9ng v\u00e0 s\u1ef1 h\u00ecnh th\u00e0nh "c\u00e1c h\u1ea1t gi\u1ea3" trong \u0111\u00f3 c\u00e1c c\u1ee5m r\u1eddi r\u1ea1c b\u1eaft ch\u01b0\u1edbc c\u00e1c h\u1ea1t l\u1edbn h\u01a1n, l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh \u0111\u1ed3ng nh\u1ea5t. Ngo\u00e0i ra, magie hydroxit r\u1ea5t nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec7t, v\u00ec v\u1eady vi\u1ec7c ki\u1ec3m so\u00e1t s\u1ef1 t\u0103ng nhi\u1ec7t \u0111\u1ed9 trong qu\u00e1 tr\u00ecnh nghi\u1ec1n l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1ea3o to\u00e0n ch\u1ea5t l\u01b0\u1ee3ng v\u1eadt li\u1ec7u. Tr\u00e1nh nhi\u1ec5m b\u1ea9n kim lo\u1ea1i l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c quan tr\u1ecdng kh\u00e1c. T\u1ea1p ch\u1ea5t c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m \u0111\u1ed9 tinh khi\u1ebft v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a s\u1ea3n ph\u1ea9m, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p nh\u1ea1y c\u1ea3m.<\/p>\n\n\n\n

Vi\u1ec7c \u0111\u1ea1t \u0111\u01b0\u1ee3c D97 2.04\u03bcm gi\u00fap n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u1eadt li\u1ec7u trong c\u00e1c \u1ee9ng d\u1ee5ng cu\u1ed1i c\u00f9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n\n\n\n

Vi\u1ec7c \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc h\u1ea1t D97 \u2264 2,04 \u03bcm b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n si\u00eau m\u1ecbn c\u00f3 t\u00e1c \u0111\u1ed9ng tr\u1ef1c ti\u1ebfp v\u00e0 m\u1ea1nh m\u1ebd \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a magie hydroxit. C\u00e1c h\u1ea1t nh\u1ecf h\u01a1n \u0111\u1ed3ng ngh\u0129a v\u1edbi \u0111\u01b0\u1eddng khu\u1ebfch t\u00e1n ion ng\u1eafn h\u01a1n, \u0111i\u1ec1u n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 ch\u1ed1ng ch\u00e1y b\u1eb1ng c\u00e1ch cho ph\u00e9p ph\u00e2n h\u1ee7y nhi\u1ec7t nhanh h\u01a1n. Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang t\u0103ng l\u00ean gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc, r\u1ea5t c\u1ea7n thi\u1ebft cho vi\u1ec7c trung h\u00f2a axit trong x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i. Trong v\u1eadt li\u1ec7u composite polymer, Mg(OH)\u2082 si\u00eau m\u1ecbn ph\u00e2n t\u00e1n g\u1ea7n nh\u01b0 kh\u00f4ng c\u00f3 khuy\u1ebft t\u1eadt trong ma tr\u1eadn, c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc, kh\u1ea3 n\u0103ng x\u1eed l\u00fd n\u00f3ng ch\u1ea3y v\u00e0 t\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng. M\u1ee9c \u0111\u1ed9 ch\u00ednh x\u00e1c trong ki\u1ec3m so\u00e1t k\u00edch th\u01b0\u1edbc h\u1ea1t n\u00e0y n\u00e2ng cao \u0111\u00e1ng k\u1ec3 ch\u1ea5t l\u01b0\u1ee3ng s\u1eed d\u1ee5ng cu\u1ed1i c\u00f9ng, cho d\u00f9 trong c\u00e1p, nh\u1ef1a hi\u1ec7u su\u1ea5t cao hay c\u00e1c \u1ee9ng d\u1ee5ng m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n

For more details on ultrafine grinding\u2019s impact on other materials, you can also explore our case study on the Nghi\u1ec1n si\u00eau m\u1ecbn k\u00ednh c\u01b0\u1eddng l\u1ef1c b\u1eb1ng m\u00e1y nghi\u1ec1n kh\u00ed n\u00e9n MQP10.<\/a>.<\/p>\n\n\n\n

L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c nghi\u1ec1n si\u00eau m\u1ecbn v\u1edbi c\u00f4ng ngh\u1ec7 Epic Powder MQW<\/h2>\n\n\n\n

Khai th\u00e1c t\u1ed1i \u0111a hi\u1ec7u n\u0103ng c\u1ee7a v\u1eadt li\u1ec7u composite ch\u1ed1ng ch\u00e1y.<\/h3>\n\n\n\n

B\u1ed9t magie hydroxit si\u00eau m\u1ecbn, ph\u00e2n b\u1ed1 \u0111\u1ec1u gi\u00fap ph\u00e2n h\u1ee7y nhi\u1ec7t nhanh h\u01a1n v\u00e0 \u0111\u1ed3ng \u0111\u1ec1u h\u01a1n. \u0110i\u1ec1u n\u00e0y gi\u00fap t\u0103ng hi\u1ec7u qu\u1ea3 ch\u1ed1ng ch\u00e1y, th\u1ec3 hi\u1ec7n qua gi\u00e1 tr\u1ecb Ch\u1ec9 s\u1ed1 Oxy Gi\u1edbi h\u1ea1n (LOI) cao h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng gi\u1ea3m kh\u00f3i tuy\u1ec7t v\u1eddi. Hi\u1ec7u su\u1ea5t n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1p ch\u1ed1ng ch\u00e1y kh\u00f4ng ch\u1ee9a halogen (HFFR) v\u00e0 c\u00e1c lo\u1ea1i nh\u1ef1a k\u1ef9 thu\u1eadt cao c\u1ea5p, n\u01a1i y\u00eau c\u1ea7u kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u00e1y \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n

Kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng v\u00e0 x\u1eed l\u00fd \u0111\u01b0\u1ee3c n\u00e2ng cao<\/h3>\n\n\n\n

K\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a gi\u00fap t\u0103ng \u0111\u00e1ng k\u1ec3 t\u1ed1c \u0111\u1ed9 v\u00e0 hi\u1ec7u qu\u1ea3 trung h\u00f2a c\u1ee7a magie hydroxit trong n\u01b0\u1edbc th\u1ea3i c\u00f3 t\u00ednh axit, \u0111\u1ed3ng th\u1eddi gi\u1ea3m th\u1ec3 t\u00edch b\u00f9n. Trong qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn polymer, s\u1ef1 ph\u00e2n t\u00e1n v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a Mg(OH)\u2082 si\u00eau m\u1ecbn c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ea3y c\u1ee7a ch\u1ea5t n\u00f3ng ch\u1ea3y, gi\u1ea3m s\u1ef1 t\u00edch t\u1ee5 khu\u00f4n v\u00e0 b\u1ea3o to\u00e0n t\u1ed1t h\u01a1n c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a ma tr\u1eadn nh\u1ef1a, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp.<\/p>\n\n\n\n

Khu v\u1ef1c h\u01b0\u1edfng l\u1ee3i<\/th>Nh\u1eefng c\u1ea3i ti\u1ebfn ch\u00ednh<\/th>T\u00e1c \u0111\u1ed9ng c\u00f4ng nghi\u1ec7p<\/th><\/tr><\/thead>
Kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u00e1y<\/td>Ph\u00e2n h\u1ee7y nhi\u1ec7t nhanh h\u01a1n, LOI cao h\u01a1n, \u00edt kh\u00f3i.<\/td>C\u00e1p HFFR an to\u00e0n h\u01a1n, ch\u1ea5t li\u1ec7u nh\u1ef1a ti\u00ean ti\u1ebfn.<\/td><\/tr>
X\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/td>Trung h\u00f2a nhanh h\u01a1n, \u00edt b\u00f9n h\u01a1n<\/td>Quy tr\u00ecnh x\u1eed l\u00fd ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng<\/td><\/tr>
X\u1eed l\u00fd polyme<\/td>Kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n, d\u00f2ng ch\u1ea3y n\u00f3ng ch\u1ea3y t\u1ed1t h\u01a1n.<\/td>Qu\u00e1 tr\u00ecnh \u0111\u00fac di\u1ec5n ra m\u01b0\u1ee3t m\u00e0 h\u01a1n, c\u00e1c b\u1ed9 ph\u1eadn th\u00e0nh ph\u1ea9m ch\u1eafc ch\u1eafn h\u01a1n.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

This combination of ultrafine grinding and precise particle control with the Epic Powder MQW Jet Mill unlocks new industrial performance levels across these sectors. For more on precision grinding technology, see our case study on nghi\u1ec1n alumina si\u00eau m\u1ecbn<\/a>.<\/p>\n\n\n\n

Quy tr\u00ecnh t\u1eebng b\u01b0\u1edbc nghi\u1ec1n si\u00eau m\u1ecbn b\u1eb1ng m\u00e1y nghi\u1ec1n Epic Powder MQW Jet Mill.<\/h2>\n\n\n\n

Chu\u1ea9n b\u1ecb nguy\u00ean li\u1ec7u magie hydroxit (325 Mesh)<\/h3>\n\n\n\n

Tr\u01b0\u1edbc khi nghi\u1ec1n, nguy\u00ean li\u1ec7u magie hydroxit, th\u01b0\u1eddng \u1edf k\u00edch th\u01b0\u1edbc 325 mesh (~44 \u03bcm), tr\u1ea3i qua qu\u00e1 tr\u00ecnh x\u1eed l\u00fd s\u01a1 b\u1ed9 c\u1ea9n th\u1eadn. Qu\u00e1 tr\u00ecnh n\u00e0y bao g\u1ed3m s\u1ea5y kh\u00f4 k\u1ef9 l\u01b0\u1ee1ng \u0111\u1ec3 gi\u1ea3m \u0111\u1ed9 \u1ea9m v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ea3y c\u1ee7a b\u1ed9t, ng\u0103n ng\u1eeba v\u00f3n c\u1ee5c ho\u1eb7c t\u1eafc ngh\u1ebdn trong qu\u00e1 tr\u00ecnh c\u1ea5p li\u1ec7u. Nguy\u00ean li\u1ec7u c\u0169ng \u0111\u01b0\u1ee3c tr\u1ed9n tr\u01b0\u1edbc \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh \u0111\u1ed3ng nh\u1ea5t, \u0111i\u1ec1u c\u1ea7n thi\u1ebft cho ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh, li\u00ean t\u1ee5c v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m nh\u1ea5t qu\u00e1n \u1edf quy m\u00f4 c\u00f4ng nghi\u1ec7p.<\/p>\n\n\n\n

L\u1ef1a ch\u1ecdn v\u00e0 Nguy\u00ean t\u1eafc c\u1ee7a H\u1ec7 th\u1ed1ng m\u00e1y nghi\u1ec1n tia MQW<\/mark><\/h3>\n\n\n\n

M\u00e1y nghi\u1ec1n kh\u00ed n\u00e9n Epic Powder MQW l\u00e0 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng \u0111\u1ec3 nghi\u1ec1n si\u00eau m\u1ecbn magie hydroxit nh\u1edd c\u01a1 ch\u1ebf nghi\u1ec1n b\u1eb1ng kh\u00ed n\u00e9n \u0111\u1ed9c \u0111\u00e1o. M\u00e1y ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, b\u1ea3o to\u00e0n c\u00e1c \u0111\u1eb7c t\u00ednh nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec7t c\u1ee7a Mg(OH)\u2082. B\u00ean trong, b\u1ed9 ph\u00e2n lo\u1ea1i tuabin \u0111\u1ed9 ch\u00ednh x\u00e1c cao \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng k\u00edch th\u01b0\u1edbc h\u1ea1t, \u0111\u1ea3m b\u1ea3o ph\u00e2n b\u1ed1 \u0111\u1ec1u v\u00e0 ng\u0103n ng\u1eeba hi\u1ec7u qu\u1ea3 t\u00ecnh tr\u1ea1ng nghi\u1ec1n qu\u00e1 m\u1ee9c. Thi\u1ebft k\u1ebf n\u00e0y t\u1ed1i \u0111a h\u00f3a hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng \u0111\u1ed3ng th\u1eddi cung c\u1ea5p b\u1ed9t si\u00eau m\u1ecbn \u0111\u1ed3ng nh\u1ea5t, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi kh\u1eaft khe. \u0110\u1ec3 bi\u1ebft th\u00eam c\u00e1c v\u00ed d\u1ee5 v\u1ec1 x\u1eed l\u00fd si\u00eau m\u1ecbn t\u01b0\u01a1ng t\u1ef1, h\u00e3y xem x\u00e9t c\u00e1c tr\u01b0\u1eddng h\u1ee3p th\u00e0nh c\u00f4ng nh\u01b0... Nghi\u1ec1n si\u00eau m\u1ecbn silica b\u1eb1ng m\u00e1y nghi\u1ec1n kh\u00ed n\u00e9n MQW.<\/a>.<\/p>\n\n\n\n

Quy tr\u00ecnh nghi\u1ec1n v\u00e0 ph\u00e2n lo\u1ea1i chi ti\u1ebft<\/h3>\n\n\n\n

Qu\u00e1 tr\u00ecnh nghi\u1ec1n b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c t\u0103ng t\u1ed1c c\u00e1c h\u1ea1t nguy\u00ean li\u1ec7u b\u00ean trong bu\u1ed3ng nghi\u1ec1n b\u1eb1ng kh\u00ed n\u00e9n t\u1ed1c \u0111\u1ed9 cao, t\u1ea1o ra c\u00e1c va ch\u1ea1m gi\u1eefa c\u00e1c h\u1ea1t, ph\u00e1 v\u1ee1 c\u00e1c c\u1ee5m h\u1ea1t, \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 ph\u00e2n t\u00e1ch h\u1ea1t s\u01a1 c\u1ea5p. B\u1ed9t m\u1ecbn thu \u0111\u01b0\u1ee3c sau \u0111\u00f3 \u0111\u01b0\u1ee3c lu\u1ed3ng kh\u00ed \u0111\u01b0a v\u00e0o v\u00f9ng ph\u00e2n lo\u1ea1i. T\u1ea1i \u0111\u00e2y, s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa l\u1ef1c ly t\u00e2m v\u00e0 l\u1ef1c c\u1ea3n c\u1ee7a lu\u1ed3ng kh\u00ed ch\u1ec9 cho ph\u00e9p c\u00e1c h\u1ea1t nh\u1ecf h\u01a1n k\u00edch th\u01b0\u1edbc m\u1ee5c ti\u00eau (D97 ~ 2,04 \u03bcm) \u0111i qua b\u00e1nh xe ph\u00e2n lo\u1ea1i v\u00e0 tho\u00e1t ra ngo\u00e0i d\u01b0\u1edbi d\u1ea1ng s\u1ea3n ph\u1ea9m. C\u00e1c h\u1ea1t l\u1edbn h\u01a1n \u0111\u01b0\u1ee3c \u0111\u01b0a tr\u1edf l\u1ea1i v\u00f9ng nghi\u1ec1n \u0111\u1ec3 ti\u1ebfp t\u1ee5c gi\u1ea3m k\u00edch th\u01b0\u1edbc, t\u1ea1o th\u00e0nh m\u1ed9t h\u1ec7 th\u1ed1ng kh\u00e9p k\u00edn. V\u00f2ng tu\u1ea7n ho\u00e0n n\u00e0y \u0111\u1ea3m b\u1ea3o ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd k\u00edch th\u01b0\u1edbc h\u1ea1t v\u00e0 t\u1ed1i \u0111a h\u00f3a n\u0103ng su\u1ea5t, l\u00ean \u0111\u1ebfn 200 kg\/gi\u1edd \u1edf quy m\u00f4 c\u00f4ng nghi\u1ec7p.<\/p>\n\n\n\n

X\u1eed l\u00fd sau khi nghi\u1ec1n v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng<\/h3>\n\n\n\n

Sau khi nghi\u1ec1n, magie hydroxit si\u00eau m\u1ecbn \u0111\u01b0\u1ee3c thu gom b\u1eb1ng b\u1ed9 t\u00e1ch ly t\u00e2m \u0111\u1ec3 lo\u1ea1i b\u1ecf b\u1ed9t kh\u1ecfi lu\u1ed3ng kh\u00ed m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, \u0111\u1ed3ng th\u1eddi gi\u1ea3m thi\u1ec3u t\u1ed5n th\u1ea5t s\u1ea3n ph\u1ea9m. B\u1ed9t sau \u0111\u00f3 \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i trong c\u00e1c th\u00f9ng ch\u1ee9a ch\u1ed1ng \u1ea9m \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ea5t l\u01b0\u1ee3ng trong qu\u00e1 tr\u00ecnh b\u1ea3o qu\u1ea3n v\u00e0 v\u1eadn chuy\u1ec3n. Quy tr\u00ecnh ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n, bao g\u1ed3m ph\u00e2n t\u00edch k\u00edch th\u01b0\u1edbc h\u1ea1t b\u1eb1ng laser \u0111\u1ec3 x\u00e1c minh D97, D50 v\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 quan tr\u1ecdng kh\u00e1c \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n 2,04 \u03bcm m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n. Ngo\u00e0i ra, k\u00ednh hi\u1ec3n vi \u0111i\u1ec7n t\u1eed qu\u00e9t (SEM) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 quan s\u00e1t h\u00ecnh d\u1ea1ng h\u1ea1t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng ph\u00e2n t\u00e1n, \u0111\u1ea3m b\u1ea3o b\u1ed9t \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c k\u1ef3 v\u1ecdng v\u1ec1 hi\u1ec7u su\u1ea5t cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi cao. Quy tr\u00ecnh k\u1ef9 l\u01b0\u1ee1ng n\u00e0y \u0111\u1ea3m b\u1ea3o m\u1ed7i l\u00f4 s\u1ea3n ph\u1ea9m \u0111\u1ec1u mang l\u1ea1i nh\u1eefng \u0111\u1eb7c t\u00ednh v\u01b0\u1ee3t tr\u1ed9i c\u1ea7n thi\u1ebft cho c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p cao c\u1ea5p.<\/p>\n\n\n\n

K\u1ebft qu\u1ea3 th\u1ef1c ti\u1ec5n c\u1ee7a qu\u00e1 tr\u00ecnh nghi\u1ec1n si\u00eau m\u1ecbn<\/h2>\n\n\n\n

Ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u1ea1t \u0111\u01b0\u1ee3c: T\u1eeb 325 Mesh \u0111\u1ebfn D97 2,04\u03bcm<\/h3>\n\n\n\n

S\u1eed d\u1ee5ng m\u00e1y nghi\u1ec1n ph\u1ea3n l\u1ef1c Epic Powder MQW, ch\u00fang t\u00f4i \u0111\u00e3 chuy\u1ec3n \u0111\u1ed5i th\u00e0nh c\u00f4ng nguy\u00ean li\u1ec7u magie hydroxit c\u00f3 ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t r\u1ed9ng (325 mesh, kho\u1ea3ng 44\u03bcm) th\u00e0nh b\u1ed9t si\u00eau m\u1ecbn t\u1eadp trung xung quanh \u0111\u01b0\u1eddng k\u00ednh D97 l\u00e0 2,04\u03bcm. S\u1ef1 gi\u1ea3m m\u1ea1nh v\u00e0 thu h\u1eb9p ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t n\u00e0y lo\u1ea1i b\u1ecf c\u00e1c ch\u1ea5t th\u1ea3i th\u00f4 v\u00e0 "c\u00e1c c\u1ee5m h\u1ea1t gi\u1ea3", ch\u1ee9ng t\u1ecf kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c c\u1ee7a MQW trong qu\u00e1 tr\u00ecnh nghi\u1ec1n v\u00e0 ph\u00e2n lo\u1ea1i. K\u1ebft qu\u1ea3 l\u00e0 m\u1ed9t lo\u1ea1i b\u1ed9t c\u00f3 \u0111\u1ed9 \u0111\u1ed3ng nh\u1ea5t cao, \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p nghi\u00eam ng\u1eb7t, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng ti\u00ean ti\u1ebfn \u0111\u00f2i h\u1ecfi ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n

T\u0103ng c\u01b0\u1eddng hi\u1ec7u su\u1ea5t trong c\u00e1c \u1ee9ng d\u1ee5ng m\u1ee5c ti\u00eau<\/h3>\n\n\n\n

B\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 trong c\u00f4ng ngh\u1ec7 nghi\u1ec1n si\u00eau m\u1ecbn n\u00e0y d\u1eabn \u0111\u1ebfn nh\u1eefng c\u1ea3i ti\u1ebfn \u0111\u00e1ng k\u1ec3 tr\u00ean c\u00e1c th\u1ecb tr\u01b0\u1eddng tr\u1ecdng \u0111i\u1ec3m:<\/p>\n\n\n\n