{"id":130301,"date":"2023-12-11T10:54:41","date_gmt":"2023-12-11T02:54:41","guid":{"rendered":"https:\/\/www.alpapowder.com\/130301\/"},"modified":"2023-12-11T10:54:42","modified_gmt":"2023-12-11T02:54:42","slug":"ban-biet-bao-nhieu-ve-bot-talc-duoc-lieu","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/130301\/","title":{"rendered":"B\u1ea1n bi\u1ebft bao nhi\u00eau v\u1ec1 b\u1ed9t talc d\u01b0\u1ee3c li\u1ec7u?"},"content":{"rendered":"

\"\"<\/p>\n

Trong ng\u00e0nh d\u01b0\u1ee3c ph\u1ea9m, b\u1ed9t talc c\u00f3 l\u1ecbch s\u1eed s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i v\u00e0 l\u00e2u d\u00e0i. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t b\u00f4i tr\u01a1n v\u00e0 ch\u1ea5t pha lo\u00e3ng trong c\u00e1c ch\u1ebf ph\u1ea9m r\u1eafn u\u1ed1ng nh\u01b0 vi\u00ean n\u00e9n v\u00e0 vi\u00ean nang.<\/p>\n

Th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a b\u1ed9t talc l\u00e0 silicat magi\u00ea ng\u1eadm n\u01b0\u1edbc, ch\u1ee7 y\u1ebfu bao g\u1ed3m oxit magi\u00ea, silicon<\/a> dioxide v\u00e0 m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf n\u01b0\u1edbc.<\/p>\n

(1) C\u1ea5u tr\u00fac c\u1ee7a b\u1ed9t talc<\/p>\n

B\u1ed9t talc c\u00f3 c\u1ea5u tr\u00fac d\u1ea1ng b\u1ed9t v\u00e0 thu\u1ed9c h\u1ec7 tinh th\u1ec3 \u0111\u01a1n t\u00e0. C\u00e1c tinh th\u1ec3 d\u1ec5 v\u1ee1, v\u1edbi c\u00e1c phi\u1ebfn m\u1ecfng l\u00e0 \u0111\u01a1n v\u1ecb c\u01a1 b\u1ea3n. C\u00e1c t\u1ea5m m\u1ecfng kh\u00e1c nhau \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi nhau b\u1eb1ng l\u1ef1c van der Waals y\u1ebfu. Khi b\u1ecb c\u1eaft b\u1edfi ngo\u1ea1i l\u1ef1c, d\u1ec5 x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng bong tr\u00f3c gi\u1eefa c\u00e1c l\u1edbp. , hi\u1ec7n t\u01b0\u1ee3ng tr\u01b0\u1ee3t. C\u00e1c h\u1ea1t b\u1ed9t talc th\u01b0\u1eddng c\u00f3 h\u00ecnh chi\u1ebfc l\u00e1 ho\u1eb7c h\u00ecnh tr\u00f2n, kh\u00f4ng m\u00e0u, kh\u00f4ng v\u1ecb, kh\u00f4ng m\u00f9i, c\u00f3 t\u00ednh ch\u1ea5t v\u1eadt l\u00fd \u01b0u vi\u1ec7t v\u00e0 kh\u00f4ng tan trong n\u01b0\u1edbc.<\/p>\n

(2) T\u00ednh ch\u1ea5t l\u00fd h\u00f3a c\u1ee7a b\u1ed9t talc<\/p>\n

B\u1ed9t talc l\u00e0 lo\u1ea1i b\u1ed9t m\u1ecbn m\u00e0u tr\u1eafng ho\u1eb7c tr\u1eafng nh\u1ea1t, kh\u00f4ng c\u00f3 c\u00e1t, c\u00f3 \u00e1nh ng\u1ecdc trai tr\u00ean b\u1ec1 m\u1eb7t ph\u00e2n t\u00e1ch. N\u00f3 kh\u00f4ng m\u00f9i v\u00e0 kh\u00f4ng v\u1ecb, c\u00f3 c\u1ea3m gi\u00e1c nh\u1eddn v\u00e0 d\u1ec5 b\u00e1m v\u00e0o da. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u00f2a tan trong n\u01b0\u1edbc, axit clohydric lo\u00e3ng ho\u1eb7c dung d\u1ecbch natri hydroxit 8,5%. Kh\u00f4ng h\u00f2a tan. \u0110\u1ed9 c\u1ee9ng l\u00e0 1,0 ~ 1,5, chi\u1ebft su\u1ea5t l\u00e0 1,54 ~ 1,59 v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang l\u00e0 2,7 ~ 2,8.<\/p>\n

(3) Ch\u1ebf bi\u1ebfn b\u1ed9t talc<\/p>\n

M\u00e1y nghi\u1ec1n Raymond, m\u00e1y nghi\u1ec1n t\u00e1c \u0111\u1ed9ng c\u01a1 h\u1ecdc, m\u00e1y nghi\u1ec1n ph\u1ea3n l\u1ef1c v\u00e0 c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 nghi\u1ec1n b\u1ed9t talc. M\u00e1y nghi\u1ec1n con l\u0103n treo \u00e1p su\u1ea5t cao v\u00e0 m\u00e1y nghi\u1ec1n Raymond ph\u00f9 h\u1ee3p \u0111\u1ec3 ch\u1ebf bi\u1ebfn b\u1ed9t talc c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t l\u1edbn h\u01a1n, trong khi m\u00e1y nghi\u1ec1n si\u00eau m\u1ecbn ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ebf bi\u1ebfn b\u1ed9t talc c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u1ecf h\u01a1n.<\/p>\n

Sau khi b\u1ed9t talc d\u01b0\u1ee3c li\u1ec7u \u0111\u01b0\u1ee3c nghi\u1ec1n th\u00e0nh b\u1ed9t, n\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c l\u00e0m n\u1ed5i \u0111\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c t\u1ea1p ch\u1ea5t kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 ami\u0103ng (tremolite), carbon, dolomite, oxit s\u1eaft v\u00e0 c\u00e1c lo\u1ea1i mu\u1ed1i nh\u00f4m v\u00e0 kho\u00e1ng ch\u1ea5t cacbonat kh\u00e1c, sau \u0111\u00f3 t\u1ea1o th\u00e0nh b\u1ed9t m\u1ecbn, x\u1eed l\u00fd b\u1eb1ng dung d\u1ecbch pha lo\u00e3ng. axit clohydric, r\u1eeda s\u1ea1ch b\u1eb1ng n\u01b0\u1edbc r\u1ed3i l\u00e0m kh\u00f4.<\/p>\n

 <\/p>\n

\u1ee8ng d\u1ee5ng b\u1ed9t talc trong c\u00f4ng ngh\u1ec7 b\u00e0o ch\u1ebf<\/p>\n

(1) \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t ph\u00e2n t\u00e1n cho d\u1ea7u d\u1ec5 bay h\u01a1i<\/p>\n

V\u00ec b\u1ed9t talc c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p ph\u1ee5 nh\u1ea5t \u0111\u1ecbnh n\u00ean n\u00f3 c\u00f3 th\u1ec3 h\u1ea5p ph\u1ee5 d\u1ea7u d\u1ec5 bay h\u01a1i l\u00ean b\u1ec1 m\u1eb7t c\u00e1c h\u1ea1t v\u00e0 ph\u00e2n t\u00e1n \u0111\u1ec1u. N\u00f3 l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng h\u00f2a tan c\u1ee7a d\u1ea7u d\u1ec5 bay h\u01a1i b\u1eb1ng c\u00e1ch t\u0103ng di\u1ec7n t\u00edch ti\u1ebfp x\u00fac gi\u1eefa d\u1ea7u d\u1ec5 bay h\u01a1i v\u00e0 thu\u1ed1c d\u1ea1ng l\u1ecfng.<\/p>\n

(2) Ph\u1ee7 l\u1edbp s\u01a1n t\u0129nh \u0111i\u1ec7n<\/p>\n

Trong l\u1edbp ph\u1ee7 \u0111\u01b0\u1eddng, b\u1ed9t talc c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u1ee7 l\u00ean l\u1edbp s\u01a1n t\u0129nh \u0111i\u1ec7n. B\u1ed9t talc tr\u1eafng l\u1ecdt qua r\u00e2y 100 l\u01b0\u1edbi l\u00e0 ph\u00f9 h\u1ee3p. Li\u1ec1u l\u01b0\u1ee3ng th\u01b0\u1eddng l\u00e0 3% \u0111\u1ebfn 6%. N\u00f3 kh\u00f4ng ch\u1ec9 c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c c\u1ea1nh v\u00e0 g\u00f3c v\u00e0 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho l\u1edbp ph\u1ee7, m\u00e0 c\u00f2n c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a vi\u00ean n\u00e9n b\u1ecdc \u0111\u01b0\u1eddng.<\/p>\n

(3) D\u00f9ng l\u00e0m ch\u1ea5t b\u00f4i tr\u01a1n<\/p>\n

Hi\u1ec7n nay, b\u1ed9t talc th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t b\u00f4i tr\u01a1n trong c\u00e1c \u0111\u01a1n thu\u1ed1c d\u1ea1ng vi\u00ean n\u00e9n ph\u00e2n t\u00e1n, vi\u00ean nang, vi\u00ean nhai, vi\u00ean s\u1ee7i, vi\u00ean gi\u1ea3i ph\u00f3ng k\u00e9o d\u00e0i. B\u1ed9t talc c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m ma s\u00e1t gi\u1eefa c\u00e1c lo\u1ea1i b\u1ed9t thu\u1ed1c v\u00e0 c\u1ea3i thi\u1ec7n t\u00ednh l\u01b0u \u0111\u1ed9ng c\u1ee7a b\u1ed9t thu\u1ed1c b\u1eb1ng c\u00e1ch l\u1ea5p \u0111\u1ea7y c\u00e1c ch\u1ed7 l\u00f5m tr\u00ean b\u1ec1 m\u1eb7t b\u1ed9t thu\u1ed1c.<\/p>\n

(4) \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t tr\u1ee3 l\u1ecdc<\/p>\n

B\u1ed9t talc kh\u00f4ng d\u1ec5 ph\u1ea3n \u1ee9ng v\u1edbi thu\u1ed1c v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p ph\u1ee5 nh\u1ea5t \u0111\u1ecbnh n\u00ean c\u00f3 th\u1ec3 d\u00f9ng l\u00e0m ch\u1ea5t tr\u1ee3 l\u1ecdc. B\u1ed9t talc \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t \u1edf 115\u00b0C, khi th\u00eam v\u00e0o dung d\u1ecbch thu\u1ed1c khi c\u00f2n n\u00f3ng, c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf polysaccharides, ch\u1ea5t nh\u1ea7y v\u00e0 t\u1ea1p ch\u1ea5t g\u00f4m m\u00e0 kh\u00f4ng ph\u00e1 h\u1ee7y c\u00e1c ho\u1ea1t ch\u1ea5t c\u1ee7a ch\u00ednh thu\u1ed1c.<\/p>\n

 <\/p>\n

\u1ee8ng d\u1ee5ng b\u1ed9t talc l\u00e0m t\u00e1 d\u01b0\u1ee3c d\u01b0\u1ee3c ph\u1ea9m<\/p>\n

(1) \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t ph\u00e2n h\u1ee7y cho thu\u1ed1c k\u1ef5 n\u01b0\u1edbc<\/p>\n

B\u1ed9t talc sau khi \u0111\u01b0\u1ee3c cho v\u00e0o thu\u1ed1c v\u00ec l\u00e0 ch\u1ea5t \u01b0a n\u01b0\u1edbc n\u00ean c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u00ednh \u01b0a n\u01b0\u1edbc c\u1ee7a to\u00e0n b\u1ed9 thu\u1ed1c, gi\u00fap n\u01b0\u1edbc d\u1ec5 d\u00e0ng th\u1ea9m th\u1ea5u v\u00e0o thu\u1ed1c v\u00e0 d\u1ec5 ph\u00e2n h\u1ee7y h\u01a1n. V\u00ec v\u1eady, b\u1ed9t talc c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t ph\u00e2n h\u1ee7y \u0111\u1ec3 r\u00fat ng\u1eafn th\u1eddi gian ph\u00e2n h\u1ee7y c\u1ee7a thu\u1ed1c. th\u1eddi gian, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi c\u00e1c thu\u1ed1c k\u1ef5 n\u01b0\u1edbc.<\/p>\n

(2) D\u00f9ng l\u00e0m ch\u1ea5t ch\u1ed1ng d\u00ednh<\/p>\n

V\u1ea5n \u0111\u1ec1 d\u00ednh l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn trong qu\u00e1 tr\u00ecnh ph\u1ee7, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 ph\u1ee7 ch\u1eadm, chu k\u1ef3 s\u1ea3n xu\u1ea5t d\u00e0i h\u01a1n, \u0111\u1ed9 b\u00e1m d\u00ednh c\u1ee7a vi\u00ean, gi\u1ea3m n\u0103ng su\u1ea5t, h\u01b0 h\u1ecfng m\u00e0ng, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c gi\u1ea3i ph\u00f3ng thu\u1ed1c v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 kh\u00e1c.<\/p>\n

(3) T\u0103ng \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i t\u1edbi h\u1ea1n c\u1ee7a thu\u1ed1c<\/p>\n

\u0110\u1ed1i v\u1edbi nh\u1eefng thu\u1ed1c d\u1ec5 h\u00fat \u1ea9m, c\u00f3 th\u1ec3 th\u00eam b\u1ed9t talc v\u00e0o \u0111\u01a1n thu\u1ed1c \u0111\u1ec3 n\u00e2ng cao \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a thu\u1ed1c.<\/p>\n

(4) \u1ea2nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c gi\u1ea3i ph\u00f3ng thu\u1ed1c<\/p>\n

Trong t\u00e0i li\u1ec7u \u0111\u00e3 c\u00f3 b\u00e1o c\u00e1o r\u1eb1ng c\u00e1c h\u1ea1t kh\u00f4ng h\u00f2a tan trong c\u00f4ng th\u1ee9c l\u1edbp ph\u1ee7 ch\u1ee9c n\u0103ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1eb7c t\u00ednh gi\u1ea3i ph\u00f3ng thu\u1ed1c, nh\u01b0ng k\u1ebft qu\u1ea3 v\u00e0 c\u01a1 ch\u1ebf t\u00e1c d\u1ee5ng th\u00ec kh\u00e1c nhau.<\/p>\n","protected":false},"excerpt":{"rendered":"

Th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a b\u1ed9t talc l\u00e0 silicat magi\u00ea ng\u1eadm n\u01b0\u1edbc, ch\u1ee7 y\u1ebfu bao g\u1ed3m oxit magi\u00ea, silicon dioxide v\u00e0 m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf n\u01b0\u1edbc.<\/p>\n","protected":false},"author":7,"featured_media":130260,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-130301","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\/130301"}],"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=130301"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/130301\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/130260"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=130301"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=130301"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=130301"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}