{"id":126483,"date":"2023-03-20T11:17:28","date_gmt":"2023-03-20T03:17:28","guid":{"rendered":"https:\/\/www.alpapowder.com\/126483\/"},"modified":"2023-03-20T11:17:29","modified_gmt":"2023-03-20T03:17:29","slug":"ung-dung-cua-khoang-liti-trong-san-xuat-thuy-tinh-va-gom-su-cao-cap","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/126483\/","title":{"rendered":"\u1ee8ng d\u1ee5ng c\u1ee7a kho\u00e1ng liti trong s\u1ea3n xu\u1ea5t th\u1ee7y tinh v\u00e0 g\u1ed1m s\u1ee9 cao c\u1ea5p"},"content":{"rendered":"

\"\"<\/p>\n

V\u1edbi s\u1ef1 ra \u0111\u1eddi c\u1ee7a c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n n\u0103ng l\u01b0\u1ee3ng m\u1edbi, pin lithium \u0111\u00e3 tr\u1edf th\u00e0nh t\u00e2m \u0111i\u1ec3m ch\u00fa \u00fd v\u00e0 l\u00e0 ch\u1ee7 \u0111\u1ec1 nghi\u00ean c\u1ee9u khoa h\u1ecdc. Kho\u00e1ng v\u1eadt ch\u1ee9a liti kh\u00f4ng ch\u1ec9 c\u00f3 ti\u1ec1m n\u0103ng to l\u1edbn trong l\u0129nh v\u1ef1c n\u0103ng l\u01b0\u1ee3ng m\u1edbi m\u00e0 c\u00f2n c\u00f3 ch\u1ee9c n\u0103ng quan tr\u1ecdng v\u00e0 \u0111\u00f3ng vai tr\u00f2 \u0111\u1eb7c bi\u1ec7t trong ng\u00e0nh th\u1ee7y tinh cao c\u1ea5p. C\u1ea3 spodumene v\u00e0 Petalite \u0111\u1ec1u l\u00e0 kho\u00e1ng ch\u1ea5t ch\u1ee9a lithium v\u00e0 l\u00e0 nguy\u00ean li\u1ec7u th\u00f4 \u0111\u1ec3 chi\u1ebft xu\u1ea5t lithium. Hai lo\u1ea1i n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u1ea1o ra trong \u0111\u00e1 granit pegmatit v\u00e0 tr\u1edf th\u00e0nh kho\u00e1ng ch\u1ea5t ph\u1ee5 sinh. Do t\u00ednh ch\u1ea5t v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc \u0111\u1eb7c bi\u1ec7t c\u1ee7a n\u00f3, n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong s\u1ea3n xu\u1ea5t th\u1ee7y tinh v\u00e0 g\u1ed1m s\u1ee9 cao c\u1ea5p.<\/p>\n

1. \u0110\u1ed3 th\u1ee7y tinh<\/p>\n

Trong s\u1ea3n xu\u1ea5t \u0111\u1ed3 th\u1ee7y tinh, m\u1eb7c d\u00f9 lithium oxit kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng trong th\u00e0nh ph\u1ea7n th\u1ee7y tinh, nh\u01b0ng n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng n\u00f3ng ch\u1ea3y tuy\u1ec7t v\u1eddi, c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y, k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a l\u00f2, n\u00e2ng cao hi\u1ec7u qu\u1ea3 n\u00f3ng ch\u1ea3y v\u00e0 do \u0111\u00f3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m . Th\u00eam tinh ch\u1ea5t spodumene c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t \u0111\u1ed3 th\u1ee7y tinh cao c\u1ea5p \u0111\u1ec3 \u0111\u00f3ng g\u00f3i m\u1ef9 ph\u1ea9m. Spodumene th\u1ee7y tinh c\u1ea5p th\u1ea5p c\u0169ng \u0111\u00e3 d\u1ea7n \u0111\u01b0\u1ee3c th\u1ecb tr\u01b0\u1eddng ch\u1ea5p nh\u1eadn.<\/p>\n

2. B\u1ed9 \u0111\u1ed3 \u0103n<\/p>\n

Trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t h\u1ed9p \u0111\u1ef1ng, h\u00e0m l\u01b0\u1ee3ng Fe2O3 c\u1ee7a b\u1ed9 \u0111\u1ed3 \u0103n th\u1ea5p h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m c\u00f9ng lo\u1ea1i. Vi\u1ec7c s\u1eed d\u1ee5ng spodumene v\u1edbi h\u00e0m l\u01b0\u1ee3ng oxit lithium cao v\u00e0 h\u00e0m l\u01b0\u1ee3ng s\u1eaft th\u1ea5p c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng s\u1ea3n ph\u1ea9m \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 m\u00e0u s\u1eafc \u0111\u00e3 ch\u1ec9 \u0111\u1ecbnh. Ngo\u00e0i ra, spodumene ch\u1ea5t l\u01b0\u1ee3ng cao kh\u00f4ng ch\u1ec9 c\u00f3 th\u1ec3 h\u1ea1 th\u1ea5p \u0111i\u1ec3m n\u00f3ng ch\u1ea3y m\u00e0 c\u00f2n l\u00e0m gi\u1ea3m \u0111\u1ed9 nh\u1edbt c\u1ee7a ch\u1ea5t n\u00f3ng ch\u1ea3y. Do \u0111\u00f3, kh\u1ea3 n\u0103ng \u0111\u1ecbnh d\u1ea1ng t\u1ed1t v\u00e0 hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t s\u1ebd \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3.<\/p>\n

3. S\u1ee3i th\u1ee7y tinh<\/p>\n

Vi\u1ec7c s\u1eed d\u1ee5ng oxit lithium trong s\u1ea3n xu\u1ea5t s\u1ee3i th\u1ee7y tinh kh\u00f4ng ch\u1ec9 c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m t\u00e1c h\u1ea1i c\u1ee7a flo \u0111\u1ed1i v\u1edbi m\u00f4i tr\u01b0\u1eddng m\u00e0 c\u00f2n c\u00f3 t\u00e1c d\u1ee5ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 trong s\u1ea3n xu\u1ea5t \u0111\u1ed3 th\u1ee7y tinh, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u1ea1 th\u1ea5p \u0111i\u1ec3m n\u00f3ng ch\u1ea3y v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u \u1ee9ng n\u00f3ng ch\u1ea3y, t\u1eeb \u0111\u00f3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n xu\u1ea5t . \u0110\u1ed9 nh\u1edbt c\u1ee7a ch\u1ea5t n\u00f3ng ch\u1ea3y th\u1ea5p, d\u1ec5 v\u1eadn h\u00e0nh, nhi\u1ec7t \u0111\u1ed9 l\u00e0m vi\u1ec7c th\u1ea5p v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb l\u00e2u d\u00e0i.<\/p>\n

4. M\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb TV<\/p>\n

Oxit liti \u0111\u01b0\u1ee3c chi\u1ebft xu\u1ea5t t\u1eeb ch\u1ea5t c\u00f4 \u0111\u1eb7c spodumene ho\u1eb7c Petalite l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a tivi \u0111\u01a1n s\u1eafc. S\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa oxit liti v\u00e0 bari l\u00e0m gi\u1ea3m b\u1ee9c x\u1ea1 truy\u1ec1n qua b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n, c\u1ea3i thi\u1ec7n c\u00e1c \u0111\u1eb7c t\u00ednh \u0111\u00fac v\u00e0 l\u1edbp ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t c\u1ee7a m\u00e0n h\u00ecnh. Trong \u1ee9ng d\u1ee5ng c\u1ee7a TV m\u00e0u, do vi\u1ec7c s\u1eed d\u1ee5ng ch\u00ec d\u1ea7n b\u1ecb c\u1ea5m n\u00ean n\u00f3 \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng liti oxit. Zirconia v\u00e0 bari ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nhi\u1ec1u h\u01a1n trong c\u00e1c c\u00f4ng th\u1ee9c, trong khi oxit liti \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t tr\u1ee3 dung.<\/p>\n

5. S\u1ea3n ph\u1ea9m g\u1ed1m nhi\u1ec7t \u0111\u1ed9 cao<\/p>\n

Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p g\u1ed1m s\u1ee9 l\u00e2u \u0111\u1eddi, lithium l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a c\u00f4ng th\u1ee9c. Spodumene nh\u01b0 m\u1ed9t ch\u1ea5t \u0111\u1ed9n t\u1ed1c \u0111\u1ed9 gi\u00e3n n\u1edf th\u1ea5p g\u00f3p ph\u1ea7n h\u00ecnh th\u00e0nh pha aluminosilicate lithium t\u1ed1c \u0111\u1ed9 gi\u00e3n n\u1edf th\u1ea5p. Th\u00eam m\u1ed9t l\u01b0\u1ee3ng l\u1edbn spodumen v\u00e0 ch\u1ecdn nhi\u1ec7t \u0111\u1ed9 nung th\u00edch h\u1ee3p, x\u1ea3y ra c\u00e1c ph\u1ea3n \u1ee9ng sau:<\/p>\n

Li2O.Al2O3.aSiO2+SiO2= Li2O.Al2O3.8SiO2<\/p>\n

(spodumene) + (silic oxit) = (dung d\u1ecbch r\u1eafn \u03b2-spodumene)<\/p>\n

Silica<\/a> t\u1ef1 do \u0111\u01b0\u1ee3c \u0111\u1ed3ng h\u00f3a trong dung d\u1ecbch r\u1eafn \u03b2-spodumene, th\u1ec3 hi\u1ec7n s\u1ef1 gi\u00e3n n\u1edf nhi\u1ec7t g\u1ea7n nh\u01b0 kh\u00f4ng \u0111\u00e1ng k\u1ec3. Do \u0111\u00f3, s\u1ea3n ph\u1ea9m c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng s\u1ed1c nhi\u1ec7t.<\/p>\n

6. Tr\u00e1ng men<\/p>\n

Oxit liti c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3m \u0111\u1ed9 nh\u1edbt c\u1ee7a ch\u1ea5t n\u00f3ng ch\u1ea3y v\u00e0 c\u1ea3i thi\u1ec7n t\u00ednh l\u01b0u \u0111\u1ed9ng c\u1ee7a l\u1edbp ph\u1ee7. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m th\u1eddi gian nung v\u00e0 nhi\u1ec7t \u0111\u1ed9 nung.<\/p>\n

7. G\u1ed1m th\u1ee7y tinh h\u00f3a ho\u00e0n to\u00e0n<\/p>\n

Spodumene c\u1ed9ng v\u1edbi ch\u1ea5t tr\u1ee3 dung fenspat c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 nung c\u1ee7a thi\u1ebft b\u1ecb v\u1ec7 sinh n\u00f3i chung kho\u1ea3ng 30-40\u00b0C. Ng\u01b0\u1eddi \u00dd \u0111\u00e3 th\u00eam spodumene v\u00e0o th\u00e2n g\u1ed1m si\u00eau tr\u1eafng \u0111\u1ec3 gi\u1ea3m hi\u1ec7u \u1ee9ng co ng\u00f3t v\u00e0 do \u0111\u00f3 n\u00e2ng cao hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t. Th\u00e2n m\u00e0u xanh l\u00e1 c\u00e2y c\u00f3 \u0111\u1ed9 x\u1ed1p th\u1ea5p \u0111\u01b0\u1ee3c b\u1ed5 sung th\u00eam spodumene \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 b\u1ee5i \u1edf m\u1ee9c t\u1ed1i thi\u1ec3u \u0111\u1ed3ng th\u1eddi t\u0103ng hi\u1ec7u qu\u1ea3 \u0111\u1ed1t ch\u00e1y.<\/p>\n

V\u1edbi \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i c\u1ee7a lithium oxit trong g\u1ed1m s\u1ee9, s\u1ee3i th\u1ee7y tinh, k\u00ednh ph\u1eb3ng v\u00e0 TV m\u00e0u, v.v., n\u00f3 \u0111\u00e3 d\u1ea7n d\u1ea7n m\u1edf r\u1ed9ng sang ng\u00e0nh luy\u1ec7n kim. Oxit liti c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thay \u0111\u1ed5i \u0111\u1ed9 nh\u1edbt c\u1ee7a x\u1ec9, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng thu h\u1ed3i kim lo\u1ea1i v\u00e0 gi\u1ea3m kh\u1ea3 n\u0103ng t\u1ea1o x\u1ec9 trong kim lo\u1ea1i.<\/p>\n","protected":false},"excerpt":{"rendered":"

Kho\u00e1ng v\u1eadt ch\u1ee9a liti kh\u00f4ng ch\u1ec9 c\u00f3 ti\u1ec1m n\u0103ng to l\u1edbn trong l\u0129nh v\u1ef1c n\u0103ng l\u01b0\u1ee3ng m\u1edbi m\u00e0 c\u00f2n c\u00f3 ch\u1ee9c n\u0103ng quan tr\u1ecdng v\u00e0 \u0111\u00f3ng vai tr\u00f2 \u0111\u1eb7c bi\u1ec7t trong ng\u00e0nh th\u1ee7y tinh cao c\u1ea5p.<\/p>\n","protected":false},"author":7,"featured_media":126443,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-126483","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\/126483","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=126483"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/126483\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/126443"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=126483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=126483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=126483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}