{"id":132367,"date":"2024-06-03T10:22:53","date_gmt":"2024-06-03T02:22:53","guid":{"rendered":"https:\/\/www.alpapowder.com\/132367\/"},"modified":"2024-06-03T10:22:55","modified_gmt":"2024-06-03T02:22:55","slug":"yeu-cau-chat-luong-cat-thach-anh-dung-cho-cac-loai-kinh","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/132367\/","title":{"rendered":"Y\u00eau c\u1ea7u ch\u1ea5t l\u01b0\u1ee3ng c\u00e1t th\u1ea1ch anh d\u00f9ng cho c\u00e1c lo\u1ea1i k\u00ednh"},"content":{"rendered":"

\"\"<\/p>\n

Silicon dioxide l\u00e0 c\u1ea5u tr\u00fac ch\u00ednh c\u1ee7a th\u1ee7y tinh, c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o th\u1ee7y tinh c\u00f3 \u0111\u1ed9 b\u1ec1n cao v\u00e0 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc t\u1ed1t. V\u00ec v\u1eady, c\u00e1t th\u1ea1ch anh l\u00e0 nguy\u00ean li\u1ec7u kho\u00e1ng c\u00f4ng nghi\u1ec7p quan tr\u1ecdng nh\u1ea5t trong ng\u00e0nh th\u1ee7y tinh, bao g\u1ed3m k\u00ednh ph\u1eb3ng, k\u00ednh h\u00e0ng ng\u00e0y, k\u00ednh si\u00eau tr\u1eafng, k\u00ednh quang \u0111i\u1ec7n, k\u00ednh th\u1ea1ch anh, v.v.<\/p>\n

Y\u00eau c\u1ea7u ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a c\u00e1t th\u1ea1ch anh trong ng\u00e0nh th\u1ee7y tinh ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh \u1edf ba kh\u00eda c\u1ea1nh: th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t. C\u00e1c s\u1ea3n ph\u1ea9m th\u1ee7y tinh kh\u00e1c nhau c\u00f3 y\u00eau c\u1ea7u ch\u1ea5t l\u01b0\u1ee3ng kh\u00e1c nhau \u0111\u1ed1i v\u1edbi c\u00e1t th\u1ea1ch anh.<\/p>\n

1. K\u00ednh ph\u1eb3ng<\/p>\n

C\u00e1c th\u1ecb tr\u01b0\u1eddng h\u1ea1 ngu\u1ed3n k\u00ednh ph\u1eb3ng kh\u00e1c nhau c\u00f3 y\u00eau c\u1ea7u kh\u00e1c nhau \u0111\u1ed1i v\u1edbi c\u00e1c ch\u1ec9 s\u1ed1 c\u00e1t th\u1ea1ch anh. Theo th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t, c\u00e1t th\u1ea1ch anh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong to\u00e0n b\u1ed9 ng\u00e0nh c\u00f4ng nghi\u1ec7p k\u00ednh ph\u1eb3ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh hai lo\u1ea1i: Lo\u1ea1i I v\u00e0 Lo\u1ea1i II. Lo\u1ea1i I c\u00f3 h\u00e0m l\u01b0\u1ee3ng Al2O3 th\u1ea5p v\u00e0 Lo\u1ea1i II c\u00f3 h\u00e0m l\u01b0\u1ee3ng Al2O3 cao.<\/p>\n

2. K\u00ednh h\u00e0ng ng\u00e0y<\/p>\n

C\u00e1c s\u1ea3n ph\u1ea9m th\u1ee7y tinh h\u00e0ng ng\u00e0y ch\u1ee7 y\u1ebfu bao g\u1ed3m ly chai, ly d\u1ee5ng c\u1ee5, ly d\u1ee5ng c\u1ee5 v\u00e0 ly d\u01b0\u1ee3c ph\u1ea9m, cung c\u1ea5p nhi\u1ec1u lo\u1ea1i bao b\u00ec kh\u00e1c nhau v\u00e0 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u ti\u00eau d\u00f9ng x\u00e3 h\u1ed9i cho c\u00e1c ng\u00e0nh nh\u01b0 th\u1ef1c ph\u1ea9m, s\u1ea3n xu\u1ea5t bia, \u0111\u1ed3 u\u1ed1ng v\u00e0 y h\u1ecdc. C\u00e1t th\u1ea1ch anh l\u00e0 nguy\u00ean li\u1ec7u c\u00f3 s\u1ed1 l\u01b0\u1ee3ng m\u1ebb th\u1ee7y tinh h\u00e0ng ng\u00e0y l\u1edbn nh\u1ea5t. Nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y c\u1ee7a c\u00e1t th\u1ea1ch anh cao t\u1edbi kho\u1ea3ng 1730oC v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t th\u1ea1ch anh c\u00f3 t\u00e1c \u0111\u1ed9ng l\u1edbn nh\u1ea5t \u0111\u1ebfn s\u1ef1 h\u00ecnh th\u00e0nh th\u1ee7y tinh.<\/p>\n

Trong th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t, c\u00e1c h\u1ea1t th\u1ea1ch anh ph\u1ea3i c\u00f3 h\u00ecnh d\u1ea1ng g\u00f3c c\u1ea1nh, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t l\u1edbn v\u00e0 kh\u00f4ng d\u1ec5 ph\u00e2n t\u1ea7ng. Ph\u1ea1m vi k\u00edch th\u01b0\u1edbc h\u1ea1t l\u00e0 60-140 l\u01b0\u1edbi.<\/p>\n

3. K\u00ednh si\u00eau tr\u1eafng<\/p>\n

K\u00ednh si\u00eau tr\u1eafng l\u00e0 lo\u1ea1i k\u00ednh v\u1eadt li\u1ec7u m\u1edbi c\u00f3 \u0111\u1ed9 truy\u1ec1n \u00e1nh s\u00e1ng c\u1ef1c cao (\u0111\u1ed9 truy\u1ec1n \u00e1nh s\u00e1ng \u2265 91,5%), h\u00e0m l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t s\u1eaft v\u1ec1 c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t trong kho\u1ea3ng 100 ~ 150ppm v\u00e0 b\u1ec1 ngo\u00e0i c\u1ef1c k\u1ef3 trong su\u1ed1t. T\u00ean g\u1ecdi kh\u00e1c c\u1ee7a k\u00ednh si\u00eau tr\u1eafng l\u00e0 k\u00ednh c\u00f3 h\u00e0m l\u01b0\u1ee3ng s\u1eaft th\u1ea5p v\u00e0 k\u00ednh c\u00f3 \u0111\u1ed9 trong su\u1ed1t cao.<\/p>\n

Nguy\u00ean li\u1ec7u th\u00f4 \u0111\u1ec3 s\u1ea3n xu\u1ea5t th\u1ee7y tinh si\u00eau tr\u1eafng ch\u1ee7 y\u1ebfu bao g\u1ed3m c\u00e1t th\u1ea1ch anh, fenspat, dolomit, \u0111\u00e1 v\u00f4i, ki\u1ec1m n\u1eb7ng, nh\u00f4m hydroxit, natri sunfat, natri pyroantimonate v\u00e0 antimon trioxide, v.v., v\u00e0 y\u00eau c\u1ea7u v\u1ec1 t\u1ef7 l\u1ec7 nguy\u00ean li\u1ec7u th\u00f4 kh\u00e1c nhau l\u00e0 r\u1ea5t cao. nghi\u00eam ng\u1eb7t. \u0110\u1ec3 \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u s\u1eed d\u1ee5ng k\u00ednh si\u00eau tr\u1eafng, ng\u00e0nh k\u00ednh \u0111\u00e3 c\u00f3 nh\u1eefng quy \u0111\u1ecbnh nghi\u00eam ng\u1eb7t v\u1ec1 th\u00e0nh ph\u1ea7n c\u1ee7a k\u00ednh si\u00eau tr\u1eafng.<\/p>\n

4. K\u00ednh quang \u0111i\u1ec7n<\/p>\n

K\u00ednh quang \u0111i\u1ec7n ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u00ean l\u1edbp ngo\u00e0i c\u00f9ng c\u1ee7a m\u00f4-\u0111un quang \u0111i\u1ec7n \u0111\u1ec3 ng\u0103n ch\u1eb7n \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u0111\u1ed9 \u1ea9m v\u00e0 kh\u00ed \u0103n m\u00f2n, \u0111\u1ed3ng th\u1eddi b\u1ea3o v\u1ec7 c\u00e1c t\u1ebf b\u00e0o v\u00e0 \u0111i\u1ec7n c\u1ef1c. So v\u1edbi k\u00ednh th\u00f4ng th\u01b0\u1eddng, k\u00ednh quang \u0111i\u1ec7n c\u1ea7n c\u00f3 h\u00e0m l\u01b0\u1ee3ng s\u1eaft th\u1ea5p, \u0111\u1ed9 truy\u1ec1n \u00e1nh s\u00e1ng cao, ch\u1ed1ng va \u0111\u1eadp, ch\u1ed1ng \u0103n m\u00f2n, ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 c\u00e1c \u0111\u1eb7c t\u00ednh kh\u00e1c. K\u00ednh n\u1ed5i si\u00eau tr\u1eafng v\u00e0 k\u00ednh cu\u1ed9n si\u00eau tr\u1eafng c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c c\u00e1c y\u00eau c\u1ea7u tr\u00ean. Trong s\u1ed1 \u0111\u00f3, k\u00ednh cu\u1ed9n si\u00eau tr\u1eafng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c t\u1ebf b\u00e0o silicon<\/a> tinh th\u1ec3 v\u00e0 l\u00e0 s\u1ea3n ph\u1ea9m ch\u1ee7 \u0111\u1ea1o c\u1ee7a th\u1ee7y tinh quang \u0111i\u1ec7n, trong khi k\u00ednh n\u1ed5i si\u00eau tr\u1eafng ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c t\u1ebf b\u00e0o m\u00e0ng m\u1ecfng.<\/p>\n

C\u00e1c ion s\u1eaft trong c\u00e1t th\u1ea1ch anh r\u1ea5t d\u1ec5 b\u1ecb nhu\u1ed9m m\u00e0u. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 truy\u1ec1n n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi cao c\u1ee7a k\u00ednh nguy\u00ean b\u1ea3n, h\u00e0m l\u01b0\u1ee3ng s\u1eaft trong k\u00ednh quang \u0111i\u1ec7n ph\u1ea3i th\u1ea5p h\u01a1n so v\u1edbi k\u00ednh th\u00f4ng th\u01b0\u1eddng. Ph\u1ea3i s\u1eed d\u1ee5ng c\u00e1t th\u1ea1ch anh c\u00f3 h\u00e0m l\u01b0\u1ee3ng s\u1eaft th\u1ea5p, \u0111\u1ed9 tinh khi\u1ebft silic cao v\u00e0 h\u00e0m l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t th\u1ea5p.<\/p>\n

5. Th\u1ee7y tinh th\u1ea1ch anh<\/p>\n

Th\u1ee7y tinh th\u1ea1ch anh \u0111\u01b0\u1ee3c m\u1ec7nh danh l\u00e0 \u201cv\u01b0\u01a1ng mi\u1ec7n\u201d c\u1ee7a v\u1eadt li\u1ec7u th\u1ee7y tinh. N\u00f3 l\u00e0 m\u1ed9t lo\u1ea1i th\u1ee7y tinh c\u00f3 SiO2<\/a> l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n duy nh\u1ea5t v\u00e0 c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1, nhi\u1ec7t, quang v\u00e0 \u0111i\u1ec7n tuy\u1ec7t v\u1eddi. N\u00f3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 kh\u00f4ng th\u1ec3 thay th\u1ebf trong ch\u1ea5t b\u00e1n d\u1eabn, thi\u1ebft b\u1ecb quang h\u1ecdc, th\u00f4ng tin quang h\u1ecdc, n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c. C\u00e1t th\u1ea1ch anh c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao hi\u1ec7n l\u00e0 nguy\u00ean li\u1ec7u ch\u00ednh \u0111\u1ec3 thay th\u1ebf qu\u1eb7ng tinh th\u1ec3 v\u00e0 n\u1ea5u ch\u1ea3y th\u1ee7y tinh th\u1ea1ch anh. Th\u1ee7y tinh th\u1ea1ch anh \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng quy tr\u00ecnh n\u1ea5u ch\u1ea3y \u0111i\u1ec7n v\u00e0 quy tr\u00ecnh l\u1ecdc kh\u00ed s\u1eed d\u1ee5ng c\u00e1t th\u1ea1ch anh c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao l\u00e0m nguy\u00ean li\u1ec7u th\u00f4.<\/p>\n","protected":false},"excerpt":{"rendered":"

Silicon dioxide l\u00e0 c\u1ea5u tr\u00fac ch\u00ednh c\u1ee7a th\u1ee7y tinh, c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o th\u1ee7y tinh c\u00f3 \u0111\u1ed9 b\u1ec1n cao v\u00e0 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc t\u1ed1t.<\/p>\n","protected":false},"author":7,"featured_media":132329,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-132367","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\/132367"}],"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=132367"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/132367\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/132329"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=132367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=132367"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=132367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}