{"id":118181,"date":"2022-08-05T10:07:16","date_gmt":"2022-08-05T02:07:16","guid":{"rendered":"https:\/\/www.alpapowder.com\/118181\/"},"modified":"2022-08-05T09:42:58","modified_gmt":"2022-08-05T01:42:58","slug":"anh-huong-cua-viec-xu-ly-kiem-den-qua-trinh-rua-troi-axit-va-lam-sach-thach-anh-van","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/118181\/","title":{"rendered":"\u1ea2nh h\u01b0\u1edfng c\u1ee7a vi\u1ec7c x\u1eed l\u00fd ki\u1ec1m \u0111\u1ebfn qu\u00e1 tr\u00ecnh r\u1eeda tr\u00f4i axit v\u00e0 l\u00e0m s\u1ea1ch th\u1ea1ch anh v\u00e2n"},"content":{"rendered":"

\"\"<\/p>\n

Th\u1ea1ch anh v\u00e2n l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean li\u1ec7u quan tr\u1ecdng \u0111\u1ec3 tinh ch\u1ebf v\u00e0 ch\u1ebf bi\u1ebfn c\u00e1t th\u1ea1ch anh c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao, Qu\u1eb7ng th\u1ea1ch anh c\u00f3 v\u00e2n ch\u1ee9a nhi\u1ec1u kho\u00e1ng ch\u1ea5t d\u1ea1ng h\u1ea1ch li\u00ean k\u1ebft nh\u01b0 fenspat, mica, rutil, tourmaline, clorit, … v\u00e0 nhi\u1ec1u t\u1ea1p ch\u1ea5t kh\u00e1c c\u0169ng \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh . \u0110\u1ed1i v\u1edbi qu\u1eb7ng th\u1ea1ch anh c\u00f3 v\u00e2n c\u1ea5p th\u1ea5p, vi\u1ec7c r\u1eeda tr\u00f4i axit \u0111\u01a1n gi\u1ea3n th\u01b0\u1eddng kh\u00f4ng th\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a th\u1ea1ch anh c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao, v\u00e0 m\u1ed9t s\u1ed1 h\u1ea1t th\u1ea1ch anh v\u1eabn ch\u1ee9a t\u1ea1p ch\u1ea5t.<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p l\u00e0m ngu\u1ed9i b\u1eb1ng n\u01b0\u1edbc rang c\u00f3 th\u1ec3 t\u1ea1o ra kho\u1ea3ng tr\u1ed1ng gi\u1eefa c\u00e1c kho\u00e1ng th\u1ea1ch anh v\u00e0 th\u1ea1ch anh, l\u00e0m l\u1ed9 ra m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn t\u1ea1p ch\u1ea5t, do \u0111\u00f3 l\u00e0m t\u0103ng c\u01a1 h\u1ed9i ti\u1ebfp x\u00fac gi\u1eefa thu\u1ed1c th\u1eed v\u00e0 c\u00e1c kho\u00e1ng ch\u1ea5t h\u1ea1ch trong th\u1ea1ch anh, v\u00e0 thu\u1eadn l\u1ee3i h\u01a1n cho vi\u1ec7c lo\u1ea1i b\u1ecf c\u00e1c kho\u00e1ng ch\u1ea5t h\u1ea1ch.<\/p>\n

S\u1eed d\u1ee5ng quy tr\u00ecnh tinh ch\u1ebf c\u1ee7a qu\u00e1 tr\u00ecnh rang-l\u00e0m ngu\u1ed9i n\u01b0\u1edbc-t\u00e1ch t\u1eeb-tuy\u1ec3n n\u1ed5i-x\u1eed l\u00fd ki\u1ec1m-r\u1eeda tr\u00f4i axit, c\u00e1c m\u1eabu th\u1ea1ch anh m\u1ea1ch \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m x\u1eed l\u00fd ki\u1ec1m-r\u1eeda tr\u00f4i axit, v\u00e0 \u1ea3nh h\u01b0\u1edfng c\u1ee7a \u0111i\u1ec1u ki\u1ec7n x\u1eed l\u00fd ki\u1ec1m \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a c\u00f4 \u0111\u1eb7c r\u1eeda tr\u00f4i axit l\u00e0 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng. :<\/p>\n

(1) Qua th\u00ed nghi\u1ec7m c\u00f3 \u0111i\u1ec1u ki\u1ec7n v\u1ec1 x\u1eed l\u00fd ki\u1ec1m v\u00e0 r\u1eeda tr\u00f4i axit \u0111\u1ed1i v\u1edbi m\u1eabu c\u00f4 \u0111\u1eb7c tuy\u1ec3n n\u1ed5i m\u1ea1ch th\u1ea1ch anh, ng\u01b0\u1eddi ta th\u1ea5y r\u1eb1ng x\u1eed l\u00fd ki\u1ec1m c\u00f3 l\u1ee3i cho vi\u1ec7c gi\u1ea3m h\u00e0m l\u01b0\u1ee3ng Al trong c\u00f4 \u0111\u1eb7c r\u1eeda axit, v\u00e0 t\u00e1c d\u1ee5ng c\u1ee7a ba ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd ki\u1ec1m kh\u00e1c nhau l\u00e0 KOH> NH4OH, t\u01b0\u01a1ng \u1ee9ng. > NaOH, trong s\u1ed1 \u0111\u00f3, h\u00e0m l\u01b0\u1ee3ng Al trong dung d\u1ecbch axit c\u00f4 \u0111\u1eb7c x\u1eed l\u00fd b\u1eb1ng dung d\u1ecbch ki\u1ec1m KOH l\u00e0 th\u1ea5p nh\u1ea5t v\u1edbi 253,67\u03bcg \/ g.<\/p>\n

(2) X\u1eed l\u00fd b\u1eb1ng dung d\u1ecbch ki\u1ec1m KOH, nhi\u1ec7t \u0111\u1ed9 ph\u1ea3n \u1ee9ng t\u1ed1i \u01b0u l\u00e0 40 \u2103, n\u1ed3ng \u0111\u1ed9 t\u1ed1i \u01b0u l\u00e0 0,5mol \/ L, v\u00e0 th\u1eddi gian ph\u1ea3n \u1ee9ng t\u1ed1i \u01b0u l\u00e0 4h. Trong \u0111i\u1ec1u ki\u1ec7n t\u1ed1i \u01b0u, h\u00e0m l\u01b0\u1ee3ng Al trong tinh ch\u1ea5t tuy\u1ec3n n\u1ed5i th\u1ea1ch anh m\u1ea1ch sau khi x\u1eed l\u00fd ki\u1ec1m v\u00e0 x\u1eed l\u00fd r\u1eeda tr\u00f4i axit l\u00e0 245,49\u03bcg \/ g. Tuy nhi\u00ean, nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao, th\u1eddi gian qu\u00e1 d\u00e0i v\u00e0 n\u1ed3ng \u0111\u1ed9 ki\u1ec1m qu\u00e1 l\u1edbn kh\u00f4ng c\u00f3 l\u1ee3i cho vi\u1ec7c gi\u1ea3m h\u00e0m l\u01b0\u1ee3ng Al trong d\u1ecbch c\u00f4 \u0111\u1eb7c r\u1eeda axit b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd ki\u1ec1m, v\u00e0 s\u1ebd l\u00e0m th\u1ea1ch anh h\u00f2a tan qu\u00e1 m\u1ee9c, l\u00e0m cho h\u00e0m l\u01b0\u1ee3ng Al t\u0103ng l\u00ean t\u01b0\u01a1ng \u0111\u1ed1i.<\/p>\n

(3) Qua ph\u00e2n t\u00edch b\u1eb1ng k\u00ednh hi\u1ec3n vi \u0111i\u1ec7n t\u1eed qu\u00e9t, b\u1ec1 m\u1eb7t c\u1ee7a th\u1ea1ch anh \u0111\u01b0\u1ee3c x\u1eed l\u00fd ki\u1ec1m r\u1ea5t th\u00f4 r\u00e1p, tr\u00ean b\u1ec1 m\u1eb7t khe n\u1ee9t c\u00f3 nhi\u1ec1u l\u1ed7 nh\u1ecf li ti, tr\u00ean b\u1ec1 m\u1eb7t \u0111\u1ee9t g\u00e3y c\u0169ng c\u00f3 m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn c\u00e1c h\u1ed1c b\u1ecb h\u00f2a tan. Trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd ki\u1ec1m, m\u1eb7t c\u1ed5ng c\u1ee7a th\u1ea1ch anh d\u1ec5 b\u1ecb dung d\u1ecbch ki\u1ec1m \u0103n m\u00f2n h\u01a1n m\u1eb7t ph\u00e2n c\u1eaft. Ph\u00e2n t\u00edch th\u1eed nghi\u1ec7m cho th\u1ea5y vi\u1ec7c x\u1eed l\u00fd ki\u1ec1m gi\u00fap t\u0103ng c\u01b0\u1eddng t\u00e1c d\u1ee5ng c\u1ee7a qu\u00e1 tr\u00ecnh r\u1eeda tr\u00f4i axit b\u1eb1ng c\u00e1ch \u0103n m\u00f2n b\u1ec1 m\u1eb7t th\u1ea1ch anh v\u00e0 ph\u1ea3n \u1ee9ng v\u1edbi SiO2<\/a> b\u1ec1 m\u1eb7t \u0111\u1ec3 l\u1ed9 ra c\u00e1c kho\u00e1ng ch\u1ea5t h\u1ea1ch b\u00ean trong.<\/p>\n","protected":false},"excerpt":{"rendered":"

Th\u1ea1ch anh v\u00e2n l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean li\u1ec7u quan tr\u1ecdng \u0111\u1ec3 tinh ch\u1ebf v\u00e0 ch\u1ebf bi\u1ebfn c\u00e1t th\u1ea1ch anh c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao, Qu\u1eb7ng th\u1ea1ch anh c\u00f3 v\u00e2n ch\u1ee9a nhi\u1ec1u kho\u00e1ng ch\u1ea5t d\u1ea1ng h\u1ea1ch li\u00ean k\u1ebft nh\u01b0 fenspat, mica, rutil, tourmaline, clorit, … v\u00e0 nhi\u1ec1u t\u1ea1p ch\u1ea5t kh\u00e1c c\u0169ng \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh . \u0110\u1ed1i v\u1edbi qu\u1eb7ng th\u1ea1ch anh c\u00f3 v\u00e2n c\u1ea5p th\u1ea5p, qu\u00e1 tr\u00ecnh r\u1eeda tr\u00f4i axit \u0111\u01a1n gi\u1ea3n th\u01b0\u1eddng kh\u00f4ng th\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u c\u1ee7a th\u1ea1ch anh c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao, v\u00e0 m\u1ed9t s\u1ed1 h\u1ea1t th\u1ea1ch anh v\u1eabn ch\u1ee9a t\u1ea1p ch\u1ea5t.<\/p>\n","protected":false},"author":7,"featured_media":118157,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[830],"tags":[],"class_list":["post-118181","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/118181","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=118181"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/118181\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/118157"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=118181"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=118181"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=118181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}