{"id":132755,"date":"2024-07-03T09:47:12","date_gmt":"2024-07-03T01:47:12","guid":{"rendered":"https:\/\/www.alpapowder.com\/132755\/"},"modified":"2024-07-03T09:47:13","modified_gmt":"2024-07-03T01:47:13","slug":"trong-san-xuat-cong-nghiep-bari-sunfat-duoc-phan-loai-nhu-the-nao","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/132755\/","title":{"rendered":"Trong s\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p, bari sunfat \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i nh\u01b0 th\u1ebf n\u00e0o?"},"content":{"rendered":"

\"\"<\/p>\n

Bari sunfat, \u0111\u1ed1i v\u1edbi h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi, th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc ch\u01b0a \u0111\u01b0\u1ee3c hi\u1ec3u r\u00f5 l\u1eafm, trong m\u1eaft h\u1ecd, bari sunfat l\u00e0 m\u1ed9t h\u00f3a ch\u1ea5t nguy hi\u1ec3m. Tr\u00ean th\u1ef1c t\u1ebf, trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y c\u1ee7a ch\u00fang ta, c\u00f3 th\u1ec3 n\u00f3i bari sunfat c\u00f3 \u1edf kh\u1eafp m\u1ecdi n\u01a1i nh\u01b0ng ch\u00fang th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n trong cu\u1ed9c s\u1ed1ng c\u1ee7a ch\u00fang ta d\u01b0\u1edbi d\u1ea1ng s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t.<\/p>\n

V\u00ed d\u1ee5, h\u1ea7u h\u1ebft c\u00e1c s\u1ea3n ph\u1ea9m nh\u1ef1a trong nh\u00e0 c\u1ee7a ch\u00fang ta, m\u00e1y \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, m\u1ed9t s\u1ed1 ph\u1ee5 ki\u1ec7n nh\u1ef1a trong \u00f4 t\u00f4, t\u00fai nh\u1ef1a d\u00f9ng trong si\u00eau th\u1ecb, v.v., s\u01a1n v\u00e0 ch\u1ea5t ph\u1ee7 d\u00f9ng trong \u0111\u1eddi s\u1ed1ng, th\u1ee7y tinh, v.v. \u0111\u1ec1u c\u00f3 th\u1ec3 ch\u1ee9a bari sunfat.<\/p>\n

Trong s\u00e1ch gi\u00e1o khoa v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc, c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc c\u1ee7a bari sunfat l\u00e0 BaSO4, n\u00f3i chung l\u00e0 h\u00ecnh thoi m\u00e0u tr\u1eafng, kh\u00f4ng m\u00e0u v\u00e0 kh\u00f4ng m\u00f9i, m\u1eadt \u0111\u1ed9 4,499 v\u00e0 nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y l\u00ean t\u1edbi 1580oC. T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a n\u00f3 r\u1ea5t \u1ed5n \u0111\u1ecbnh, kh\u00f4ng h\u00f2a tan trong n\u01b0\u1edbc, kh\u00e1ng axit, kh\u00e1ng ki\u1ec1m, kh\u00f4ng \u0111\u1ed9c h\u1ea1i, kh\u00f4ng t\u1eeb t\u00ednh v\u00e0 c\u0169ng c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 tia X v\u00e0 tia gamma. Trong t\u1ef1 nhi\u00ean, bari sunfat c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 barit, m\u1ed9t lo\u1ea1i qu\u1eb7ng t\u1ef1 nhi\u00ean, th\u01b0\u1eddng c\u00f3 h\u00ecnh d\u1ea1ng kh\u1ed1i tinh th\u1ec3 chia \u0111\u00f4i v\u00e0 m\u00e0u s\u1eafc c\u1ee7a n\u00f3 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi lo\u1ea1i v\u00e0 l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t ch\u1ee9a trong \u0111\u00f3. Barit nguy\u00ean ch\u1ea5t kh\u00f4ng m\u00e0u v\u00e0 trong su\u1ed1t. Barite kh\u00f4ng g\u00e2y h\u1ea1i tr\u1ef1c ti\u1ebfp cho c\u01a1 th\u1ec3 con ng\u01b0\u1eddi v\u00e0 c\u00f3 th\u1ec3 ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp.<\/p>\n

Trong c\u00f4ng nghi\u1ec7p, c\u00f3 nhi\u1ec1u c\u00e1ch ph\u00e2n lo\u1ea1i bari sunfat v\u00e0 nh\u1eefng c\u00e1ch ph\u00e2n lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u01b0 sau:
\n1. Bari n\u1eb7ng, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ed9t barit ho\u1eb7c b\u1ed9t bari t\u1ef1 nhi\u00ean. N\u00f3 \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi nh\u1eefng ng\u01b0\u1eddi l\u1ef1a ch\u1ecdn qu\u1eb7ng bari sunfat t\u1ef1 nhi\u00ean (baryte) v\u00e0 sau \u0111\u00f3 r\u1eeda, nghi\u1ec1n, s\u1ea5y kh\u00f4 v\u00e0 c\u00e1c quy tr\u00ecnh kh\u00e1c. N\u00f3 c\u00f3 nhi\u1ec1u t\u1ea1p ch\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi ch\u00ednh qu\u1eb7ng nh\u01b0ng gi\u00e1 th\u00e0nh th\u1ea5p. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n trong s\u1ea3n xu\u1ea5t b\u1ed9t m\u00e0u tr\u1eafng ho\u1eb7c c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p s\u01a1n, nh\u1ef1a v\u00e0 m\u1ef1c c\u1ea5p th\u1ea5p. N\u00f3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 trong vi\u1ec7c gi\u1ea3m chi ph\u00ed v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u00f3ng.
\n2. Bari sunfat k\u1ebft t\u1ee7a, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bari sunfat c\u00f4ng nghi\u1ec7p ho\u1eb7c bari k\u1ebft t\u1ee7a. N\u00f3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch x\u1eed l\u00fd nh\u00e2n t\u1ea1o. Kh\u00f4ng gi\u1ed1ng nh\u01b0 bari n\u1eb7ng, bari k\u1ebft t\u1ee7a h\u1ea7u nh\u01b0 kh\u00f4ng ch\u1ee9a t\u1ea1p ch\u1ea5t. N\u00f3 \u00edt tan trong n\u01b0\u1edbc v\u00e0 kh\u00f4ng tan trong axit. B\u1ea3n th\u00e2n n\u00f3 kh\u00f4ng \u0111\u1ed9c h\u1ea1i, nh\u01b0ng n\u1ebfu ch\u1ee9a bari h\u00f2a tan, n\u00f3 c\u00f3 th\u1ec3 g\u00e2y ng\u1ed9 \u0111\u1ed9c. Bari sunfat k\u1ebft t\u1ee7a trong c\u00f4ng nghi\u1ec7p ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi ph\u1ea3n \u1ee9ng c\u1ee7a bari sunfat v\u1edbi axit sunfuric, ph\u1ea3n \u1ee9ng c\u1ee7a bari clorua v\u1edbi axit sunfuric ho\u1eb7c natri sunfat v\u00e0 ph\u1ea3n \u1ee9ng c\u1ee7a bari sunfua v\u1edbi natri sunfat. Bari sunfat k\u1ebft t\u1ee7a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n trong l\u0129nh v\u1ef1c y h\u1ecdc, s\u01a1n v\u00e0 m\u1ef1c trung c\u1ea5p v\u00e0 cao c\u1ea5p, nh\u1ef1a, cao su, th\u1ee7y tinh, g\u1ed1m s\u1ee9, v.v. do t\u00ednh \u1ed5n \u0111\u1ecbnh v\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 c\u1ee5 th\u1ec3 kh\u00e1c nhau. Ng\u01b0\u1eddi ta th\u01b0\u1eddng chia n\u00f3 th\u00e0nh bari sunfat k\u1ebft t\u1ee7a c\u1ea5p l\u1edbp ph\u1ee7, bari sunfat k\u1ebft t\u1ee7a c\u1ea5p nh\u1ef1a, v.v. t\u00f9y theo c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau. Gi\u00e1 c\u1ee7a n\u00f3 cao h\u01a1n so v\u1edbi bari n\u1eb7ng.
\n3. Bari sunfat bi\u1ebfn t\u00ednh, \u0111\u01b0\u1ee3c chia th\u00e0nh bari sunfat bi\u1ebfn t\u00ednh v\u00e0 bari sunfat k\u1ebft t\u1ee7a bi\u1ebfn t\u00ednh, nh\u1eb1m n\u00e2ng cao hi\u1ec7u su\u1ea5t c\u1ee7a b\u1ed9t barit ho\u1eb7c bari sunfat k\u1ebft t\u1ee7a \u1edf m\u1ed9t kh\u00eda c\u1ea1nh nh\u1ea5t \u0111\u1ecbnh th\u00f4ng qua x\u1eed l\u00fd c\u00f3 li\u00ean quan. \u1ee8ng d\u1ee5ng n\u00e0y t\u01b0\u01a1ng t\u1ef1 nh\u01b0 l\u01b0\u1ee3ng m\u01b0a v\u00e0 ch\u1ee7 y\u1ebfu ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c \u0111\u1eb7c t\u00ednh li\u00ean quan c\u1ee7a n\u00f3. Trong s\u1ed1 \u0111\u00f3, lo\u1ea1i \u0111\u00e3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u00e0 tinh ch\u1ebf th\u00eam c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 bari sunfat si\u00eau m\u1ecbn bi\u1ebfn t\u00ednh ho\u1eb7c bari sunfat k\u1ebft t\u1ee7a si\u00eau m\u1ecbn bi\u1ebfn t\u00ednh. Gi\u00e1 cao h\u01a1n k\u1ebft t\u1ee7a bari sulfat.
\n4. Bari sulfat k\u1ebft t\u1ee7a c\u1ea5p \u0111\u1ed9 nano d\u00f9ng \u0111\u1ec3 ki\u1ec3m so\u00e1t D50 (ph\u00e2n b\u1ed1 k\u00edch th\u01b0\u1edbc h\u1ea1t trung b\u00ecnh) trong kho\u1ea3ng 0,2\u03bcm-0,4\u03bcm th\u00f4ng qua qu\u00e1 tr\u00ecnh x\u1eed l\u00fd s\u00e2u bari sulfat k\u1ebft t\u1ee7a \u0111\u00e3 bi\u1ebfn t\u00ednh. Bari sunfat k\u1ebft t\u1ee7a c\u1ea5p nano ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u01a1n, ch\u1ea5t ph\u1ee7 cao c\u1ea5p v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c.<\/p>\n","protected":false},"excerpt":{"rendered":"

Trong t\u1ef1 nhi\u00ean, bari sunfat c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 barit, m\u1ed9t lo\u1ea1i qu\u1eb7ng t\u1ef1 nhi\u00ean, th\u01b0\u1eddng c\u00f3 h\u00ecnh d\u1ea1ng kh\u1ed1i tinh th\u1ec3 chia \u0111\u00f4i v\u00e0 m\u00e0u s\u1eafc c\u1ee7a n\u00f3 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi lo\u1ea1i v\u00e0 l\u01b0\u1ee3ng t\u1ea1p ch\u1ea5t ch\u1ee9a trong \u0111\u00f3.<\/p>\n","protected":false},"author":7,"featured_media":132716,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-132755","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\/132755"}],"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=132755"}],"version-history":[{"count":1,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/132755\/revisions"}],"predecessor-version":[{"id":132756,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/132755\/revisions\/132756"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/132716"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=132755"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=132755"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=132755"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}