{"id":129749,"date":"2023-11-03T13:43:47","date_gmt":"2023-11-03T05:43:47","guid":{"rendered":"https:\/\/www.alpapowder.com\/129749\/"},"modified":"2023-11-03T13:43:48","modified_gmt":"2023-11-03T05:43:48","slug":"nghien-va-bien-tinh-bot-mica-sieu-min","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/129749\/","title":{"rendered":"Nghi\u1ec1n v\u00e0 bi\u1ebfn t\u00ednh b\u1ed9t mica si\u00eau m\u1ecbn"},"content":{"rendered":"

\"\"<\/p>\n

V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p, c\u00e1c c\u00f4ng ty \u1ee9ng d\u1ee5ng h\u1ea1 ngu\u1ed3n ng\u00e0y c\u00e0ng c\u00f3 y\u00eau c\u1ea7u cao h\u01a1n v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng b\u1ed9t mica. Hi\u1ec7n nay, b\u1ed9t muscovite c\u00f3 D90 kho\u1ea3ng 45 \u03bcm ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t gi\u1ea5y, s\u01a1n latex, cao su v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c, trong khi c\u00e1c lo\u1ea1i s\u01a1n ph\u1ee7 cao c\u1ea5p, mica ng\u1ecdc trai v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c th\u00ec k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a b\u1ed9t mica \u0111\u00e3 \u0111\u1eb7t ra y\u00eau c\u1ea7u cao h\u01a1n, v\u00e0 Vi\u1ec7c ch\u1ebf t\u1ea1o b\u1ed9t mica si\u00eau m\u1ecbn c\u1ea5p micro-nano l\u00e0 c\u1ea5p thi\u1ebft.<\/p>\n

Trong qu\u00e1 tr\u00ecnh nghi\u1ec1n, muscovit v\u1eabn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p ch\u1eb7t ch\u1ebd d\u1ecdc theo b\u1ec1 m\u1eb7t t\u01b0\u01a1i sau khi ph\u00e2n t\u00e1ch gi\u1eefa c\u00e1c l\u1edbp. N\u00f3 l\u00e0 m\u1ed9t trong nh\u1eefng kho\u00e1ng ch\u1ea5t kh\u00f3 nghi\u1ec1n h\u01a1n. Hi\u1ec7n nay, b\u1ed9t si\u00eau m\u1ecbn muscovit c\u1ea5p micro-nano r\u1ea5t kh\u00f3 \u0111i\u1ec1u ch\u1ebf b\u1eb1ng thi\u1ebft b\u1ecb nghi\u1ec1n th\u00f4ng th\u01b0\u1eddng. Nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t mica trong n\u01b0\u1edbc s\u1ebd khai th\u00e1c muscovit ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 ch\u1ec9 nghi\u1ec1n th\u00f4 \u0111\u1ec3 xu\u1ea5t kh\u1ea9u. M\u1ed9t s\u1ed1 kh\u00e1c s\u1ebd \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o th\u00e0nh s\u1ea3n ph\u1ea9m muscovit c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t D90 kho\u1ea3ng 45\u03bcm ho\u1eb7c th\u1eadm ch\u00ed th\u00f4 h\u01a1n, g\u00e2y l\u00e3ng ph\u00ed t\u00e0i nguy\u00ean v\u00e0 gi\u1ea3m kh\u1ea3 n\u0103ng c\u1ea1nh tranh c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n

Chu\u1ea9n b\u1ecb m\u00e0i si\u00eau m\u1ecbn mica<\/p>\n

Hi\u1ec7n nay, qu\u00e1 tr\u00ecnh nghi\u1ec1n si\u00eau m\u1ecbn mica \u0111\u01b0\u1ee3c chia th\u00e0nh hai ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n: ph\u01b0\u01a1ng ph\u00e1p kh\u00f4 v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u01b0\u1edbt. Trong s\u1ed1 \u0111\u00f3: c\u00e1c thi\u1ebft b\u1ecb ch\u00ednh \u0111\u1ec3 nghi\u1ec1n si\u00eau m\u1ecbn kh\u00f4 bao g\u1ed3m m\u00e1y nghi\u1ec1n t\u00e1c \u0111\u1ed9ng c\u01a1 h\u1ecdc t\u1ed1c \u0111\u1ed9 cao, m\u00e1y nghi\u1ec1n lu\u1ed3ng kh\u00f4ng kh\u00ed, m\u00e1y nghi\u1ec1n t\u1ef1 sinh d\u00f2ng xo\u00e1y ho\u1eb7c l\u1ed1c xo\u00e1y, v.v. v\u00e0 m\u00e1y ph\u00e2n lo\u1ea1i lu\u1ed3ng kh\u00ed kh\u00f4 t\u01b0\u01a1ng \u1ee9ng; thi\u1ebft b\u1ecb s\u1ea3n xu\u1ea5t b\u1ed9t sericit nghi\u1ec1n \u01b0\u1edbt bao g\u1ed3m m\u00e1y nghi\u1ec1n c\u00e1t, m\u00e1y nghi\u1ec1n, v.v. M\u00e1y v\u1ea9y v\u00e0 m\u00e1y nghi\u1ec1n keo l\u00e0 nh\u1eefng thi\u1ebft b\u1ecb ch\u00ednh, trong khi ph\u00e2n lo\u1ea1i m\u1ecbn \u01b0\u1edbt s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 ph\u00e2n lo\u1ea1i hydrocyclone.<\/p>\n

M\u00e1y nghi\u1ec1n con l\u0103n h\u00e0nh tinh t\u1ed1c \u0111\u1ed9 cao c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n hi\u1ec7u qu\u1ea3 vi\u1ec7c nghi\u1ec1n mica kh\u00f4 v\u00e0 \u01b0\u1edbt. \u0110\u01b0\u1eddng k\u00ednh trung b\u00ecnh c\u1ee7a c\u00e1c h\u1ea1t sau khi nghi\u1ec1n c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 10 \u03bcm ho\u1eb7c nh\u1ecf h\u01a1n; v\u1eadt li\u1ec7u mica \u1edf trong qu\u00e1 tr\u00ecnh nghi\u1ec1n trong th\u1eddi gian r\u1ea5t ng\u1eafn, th\u01b0\u1eddng l\u00e0 5-10 gi\u00e2y. ; B\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh c\u1ea5u tr\u00fac con l\u0103n, c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c b\u1ed9t mica v\u1edbi t\u1ef7 l\u1ec7 \u0111\u01b0\u1eddng k\u00ednh v\u00e0 \u0111\u1ed9 d\u00e0y y\u00eau c\u1ea7u. Trong \u0111i\u1ec1u ki\u1ec7n nghi\u1ec1n \u01b0\u1edbt, b\u1ed9t mica c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ef7 l\u1ec7 \u0111\u01b0\u1eddng k\u00ednh v\u00e0 \u0111\u1ed9 d\u00e0y trong kho\u1ea3ng 20-60.<\/p>\n

M\u00e1y khu\u1ea5y s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ti\u1ec7n nghi\u1ec1n \u0111\u1eb7c bi\u1ec7t, c\u00f3 t\u00e1c d\u1ee5ng \u1ee9ng d\u1ee5ng t\u1ed1t trong vi\u1ec7c b\u00f3c b\u1ed9t mica si\u00eau m\u1ecbn m\u00e0 kh\u00f4ng l\u00e0m h\u1ecfng b\u1ec1 m\u1eb7t mica v\u00e0 c\u00f3 th\u1ec3 l\u00e0m cho t\u1ef7 l\u1ec7 \u0111\u01b0\u1eddng k\u00ednh-\u0111\u1ed9 d\u00e0y c\u1ee7a b\u1ed9t mica> 60.<\/p>\n

 <\/p>\n

S\u01a1n ph\u1ee7 b\u1ec1 m\u1eb7t b\u1eb1ng b\u1ed9t mica ho\u1eb7c s\u1eeda \u0111\u1ed5i<\/p>\n

L\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t ho\u1eb7c s\u1eeda \u0111\u1ed5i b\u1ed9t mica c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c ch\u1ea5t m\u00e0u mica ng\u1ecdc trai v\u00e0 mica m\u00e0u \u0111\u1ec3 c\u1ea3i thi\u1ec7n c\u00e1c \u0111\u1eb7c t\u00ednh t\u01b0\u01a1ng \u1ee9ng c\u1ee7a ch\u00fang trong c\u00e1c v\u1eadt li\u1ec7u nh\u01b0 cao su v\u00e0 l\u1edbp ph\u1ee7. Ngo\u00e0i ra c\u00f2n c\u00f3 nhi\u1ec1u nghi\u00ean c\u1ee9u li\u00ean quan.<\/p>\n

Mica \u0111\u01b0\u1ee3c ph\u1ee7 b\u1ec1 m\u1eb7t \u0111\u1ec3 chu\u1ea9n b\u1ecb b\u1ed9t mica ng\u1ecdc trai v\u00e0 b\u1ed9t m\u00e0u mica. Hi\u1ec7n nay ph\u01b0\u01a1ng ph\u00e1p l\u1eafng \u0111\u1ecdng pha l\u1ecfng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn bao g\u1ed3m b\u1ed5 sung ki\u1ec1m, th\u1ee7y ph\u00e2n nhi\u1ec7t, \u0111\u1ec7m, v.v. C\u00e1c ngu\u1ed3n titan ch\u1ea5t ph\u1ee7 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00f4ng nghi\u1ec7p l\u00e0 titan tetraclorua v\u00e0 titanyl sunfat.<\/p>\n

 <\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a b\u1ed9t mica<\/p>\n

B\u1ed9t mica c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 v\u1eadt li\u1ec7u c\u00e1ch \u0111i\u1ec7n, ch\u1ea5t \u0111\u1ed9n ph\u1ee7 ch\u1ee9c n\u0103ng, ch\u1ea5t \u0111\u1ed9n cao su, ch\u1ea5t \u0111\u1ed9n nh\u1ef1a, m\u1ef9 ph\u1ea9m v\u00e0 v\u1eadt li\u1ec7u h\u00e0n.<\/p>\n","protected":false},"excerpt":{"rendered":"

Hi\u1ec7n nay, qu\u00e1 tr\u00ecnh nghi\u1ec1n si\u00eau m\u1ecbn mica \u0111\u01b0\u1ee3c chia th\u00e0nh hai ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n: ph\u01b0\u01a1ng ph\u00e1p kh\u00f4 v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u01b0\u1edbt.<\/p>\n","protected":false},"author":7,"featured_media":129710,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-129749","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghiep-tin-tuc-vi"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/129749","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=129749"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/129749\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/129710"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=129749"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=129749"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=129749"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}