{"id":111975,"date":"2021-09-23T02:16:33","date_gmt":"2021-09-22T19:16:33","guid":{"rendered":"http:\/\/hocvienmo.thietkewebquangninh.vn\/?p=111975"},"modified":"2021-09-23T02:16:33","modified_gmt":"2021-09-22T19:16:33","slug":"gioi-thieu-phuong-phap-orbite-aluminae-canada-san-xuat-alumin-tu-quang-bauxit-khong-tao-ra-bun-do","status":"publish","type":"post","link":"https:\/\/imsat.vn\/?p=111975","title":{"rendered":"Gi\u1edbi thi\u1ec7u ph\u01b0\u01a1ng ph\u00e1p Orbite Aluminae (Canada): s\u1ea3n xu\u1ea5t alumin t\u1eeb qu\u1eb7ng bauxit kh\u00f4ng t\u1ea1o ra b\u00f9n \u0111\u1ecf"},"content":{"rendered":"

\u0110\u1ebfn nay, trong ho\u1ea1t \u0111\u1ed9ng khai th\u00e1c v\u00e0 tinh luy\u1ec7n bauxit \u0111\u1ec3 s\u1ea3n xu\u1ea5t ra alumin tr\u00ean th\u1ebf gi\u1edbi, ng\u01b0\u1eddi ta v\u1eabn s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p Bayer truy\u1ec1n th\u1ed1ng, v\u1edbi nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng l\u1edbn b\u00f9n \u0111\u1ecf, l\u00e0 m\u1ed1i hi\u1ec3m h\u1ecda l\u1edbn v\u1ec1 m\u00f4i tr\u01b0\u1eddng. H\u01a1n n\u1eefa, trong b\u00f9n \u0111\u1ecf c\u00f2n ch\u1ee9a m\u1ed9t s\u1ed1 kho\u00e1ng s\u1ea3n c\u00f3 \u00edch nh\u01b0 s\u1eaft, \u0111\u1ea5t hi\u1ebfm, titan \u2026 kh\u00f4ng thu h\u1ed3i \u0111\u01b0\u1ee3c, g\u00e2y l\u00e3ng ph\u00ed t\u00e0i nguy\u00ean. B\u00e0i vi\u1ebft gi\u1edbi thi\u1ec7u ph\u01b0\u01a1ng ph\u00e1p Orbite Aluminae c\u1ee7a c\u00e1c nh\u00e0 khoa h\u1ecdc Canada, m\u1ed9t \u0111\u1ed9t ph\u00e1 c\u00f4ng ngh\u1ec7 trong luy\u1ec7n alumin t\u1eeb qu\u1eb7ng bauxit. C\u00f4ng ngh\u1ec7 n\u00e0y tinh ch\u1ebf ra alumin kh\u00f4ng t\u1ea1o ra b\u00f9n \u0111\u1ecf, kh\u00f4ng nh\u1eefng th\u1ebf, c\u00f4ng ngh\u1ec7 n\u00e0y c\u00f2n c\u00f3 th\u1ec3 chi\u1ebft t\u00e1ch \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m kh\u00e1c nh\u01b0 c\u00e1c kim lo\u1ea1i \u0111\u1ea5t hi\u1ebfm t\u1eeb b\u00f9n \u0111\u1ecf \u0111ang t\u1ed3n \u0111\u1ecdng t\u1eeb tr\u01b0\u1edbc \u1edf c\u00e1c b\u00e3i th\u1ea3i.<\/strong><\/p>\n

\n

Nh\u1eefng s\u1ed1 li\u1ec7u t\u00ednh to\u00e1n cho th\u1ea5y, trong giai \u0111o\u1ea1n 2015 \u2013 2018, tr\u00ean th\u1ebf gi\u1edbi s\u1ebd t\u1ed3n ch\u1ee9a kho\u1ea3ng 4 t\u1ef7 t\u1ea5n b\u00f9n \u0111\u1ecf tr\u00ean nh\u1eefng quy m\u00f4 v\u00e0 khu v\u1ef1c kh\u00e1c nhau. T\u1edbi nay, ph\u01b0\u01a1ng ph\u00e1p Bayer \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 tinh ch\u1ebf bauxit s\u1ea3n xu\u1ea5t ra alumin (oxit nh\u00f4m) \u0111\u00e3 t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng l\u1edbn ch\u1ea5t th\u1ea3i b\u00f9n \u0111\u1ecf. K\u1ec3 t\u1eeb khi ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng v\u00e0o cu\u1ed1i nh\u1eefng n\u0103m 1800, bi\u1ec7n ph\u00e1p x\u1eed l\u00fd duy nh\u1ea5t \u0111\u1ed1i v\u1edbi l\u01b0\u1ee3ng b\u00f9n \u0111\u1ecf mang t\u00ednh ki\u1ec1m n\u00e0y l\u00e0 c\u1ea5t gi\u1eef trong b\u1ec3 ch\u1ee9a. Do v\u1eady, khi l\u01b0\u1ee3ng b\u00f9n \u0111\u1ecf n\u00e0y tho\u00e1t ra, s\u1ebd t\u1ea1o n\u00ean nh\u1eefng nguy h\u1ea1i v\u1ec1 m\u00f4i tr\u01b0\u1eddng, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 s\u1ef1 c\u1ed1 tr\u00e0n b\u00f9n t\u1ea1i Ajka, mi\u1ec1n T\u00e2y Hungary n\u0103m 2010.<\/span><\/p>\n

Trung b\u00ecnh, qu\u1eb7ng bauxit ch\u1ee9a kho\u1ea3ng 40% – 50% alumin. Ph\u01b0\u01a1ng ph\u00e1p Bayer s\u1eed d\u1ee5ng m\u1ed9t dung d\u1ecbch natri hidroxit n\u00f3ng \u0111\u1ec3 th\u1ee7y ph\u00e2n qu\u1eb7ng. Khi chuy\u1ec3n \u0111\u1ed5i alumin th\u00e0nh natri aluminat, nh\u1eefng t\u1ea1p ch\u1ea5t r\u1eafn kh\u00e1c kh\u00f4ng h\u00f2a tan v\u00e0 \u0111\u01b0\u1ee3c l\u1ecdc b\u1ecf. Khi dung d\u1ecbch ki\u1ec1m \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t, nh\u00f4m hi\u0111roxit (Al(OH)3<\/sub>) s\u1ebd k\u1ebft t\u1ee7a. C\u00e1c t\u1ea1p ch\u1ea5t r\u1eafn h\u1ea7u h\u1ebft l\u00e0 h\u1ed7n h\u1ee3p g\u1ed3m silic oxit, oxit s\u1eaft (m\u00e0u \u0111\u1ecf) v\u00e0 titan dioxit.<\/span><\/p>\n

L\u01b0\u1ee3ng silic c\u00f3 trong qu\u1eb7ng bauxit c\u00f3 th\u1ec3 dao \u0111\u1ed9ng t\u1eeb v\u00e0i % \u0111\u1ebfn 10%. T\u1ef7 l\u1ec7 gi\u1eefa alumin v\u00e0 silic oxit quy\u1ebft \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng qu\u1eb7ng bauxit. Qu\u1eb7ng bauxit c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t nh\u1ea5t khi t\u1ef7 l\u1ec7 n\u00e0y \u0111\u1ea1t gi\u00e1 tr\u1ecb cao nh\u1ea5t v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. Th\u00f4ng th\u01b0\u1eddng, ch\u1ebf bi\u1ebfn \u0111\u01b0\u1ee3c m\u1ed9t t\u1ea5n alumin t\u1eeb qu\u1eb7ng bauxit c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t nh\u1ea5t t\u1ea1o ra 2 t\u1ea5n b\u00f9n \u0111\u1ecf. T\u1ef7 l\u1ec7 silic oxit t\u0103ng th\u00ec l\u01b0\u1ee3ng b\u00f9n \u0111\u1ecf c\u0169ng t\u0103ng theo. V\u1edbi t\u1ef7 l\u1ec7 10% silic oxit, ph\u01b0\u01a1ng ph\u00e1p Bayer tr\u1edf l\u00ean kh\u00f4ng kinh t\u1ebf do l\u01b0\u1ee3ng b\u00f9n \u0111\u1ecf l\u1edbn.<\/span><\/p>\n

C\u00f4ng ty Orbite Aluminae Inc. c\u1ee7a Canada v\u1eeba \u0111\u01b0a ra m\u1ed9t gi\u1ea3i ph\u00e1p kh\u00f4ng nh\u1eefng tinh ch\u1ebf ra alumin kh\u00f4ng t\u1ea1o ra b\u00f9n \u0111\u1ecf m\u00e0 c\u00f2n c\u00f3 th\u1ec3 chi\u1ebft t\u00e1ch \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m kh\u00e1c nh\u01b0 c\u00e1c kim lo\u1ea1i \u0111\u1ea5t hi\u1ebfm t\u1eeb c\u00e1c khu v\u1ef1c ch\u1ee9a b\u00f9n \u0111\u1ecf hi\u1ec7n c\u00f3. V\u00e0o \u0111\u1ea7u th\u00e1ng Hai n\u0103m 2013, C\u00f4ng ty Orbite Aluminae \u0111\u00e3 th\u00f4ng b\u00e1o v\u1ec1 vi\u1ec7c C\u00f4ng ty hi\u1ec7n \u0111ang h\u1ee3p t\u00e1c v\u1edbi C\u00f4ng ty D\u1ecbch v\u1ee5 M\u00f4i tr\u01b0\u1eddng Veolia, m\u1ed9t c\u00f4ng ty qu\u1ea3n l\u00fd ch\u1ea5t th\u1ea3i c\u00f3 kinh nghi\u1ec7m trong c\u00f4ng ngh\u1ec7 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i ti\u1ebfn h\u00e0nh x\u1eed l\u00fd v\u00e0 t\u00e1i ch\u1ebf b\u00f9n \u0111\u1ecf. B\u00ean c\u1ea1nh \u0111\u00f3, h\u1ecd s\u1ebd ti\u1ebfn h\u00e0nh x\u00e2y d\u1ef1ng nh\u00e0 m\u00e1y x\u1eed l\u00fd b\u00f9n \u0111\u1ecf \u0111\u1ea7u ti\u00ean s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p Orbite Aluminae.<\/span><\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p Orbite Aluminae<\/span><\/em><\/strong><\/p>\n

Theo \u0111\u00e1nh gi\u00e1 c\u1ee7a Ch\u1ee7 t\u1ecbch ki\u00eam CEOC\u00f4ng ty Orbite Aluminae Inc., \u00f4ng Richard Boudreault, ph\u01b0\u01a1ng ph\u00e1p Bayer l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p kh\u00f4ng hi\u1ec7u qu\u1ea3. H\u1ec7 th\u1ed1ng th\u1ee7y ph\u00e2n ch\u1ec9 c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c m\u1ed9t n\u1eeda l\u01b0\u1ee3ng alumin, ph\u1ea7n alumin c\u00f2n l\u1ea1i k\u1ebft h\u1ee3p c\u00f9ng v\u1edbi s\u1eaft t\u1ea1o th\u00e0nh h\u1ed7n h\u1ee3p b\u00f9n \u0111\u1ecf. Khi \u0111\u00f3, h\u1ea7u nh\u01b0 t\u1ea5t c\u1ea3 qu\u1eb7ng s\u1eaft li\u00ean k\u1ebft ch\u1eb7t ch\u1ebd v\u1edbi silic oxit. Nh\u01b0 v\u1eady, m\u1ed9t l\u01b0\u1ee3ng l\u1edbn kim lo\u1ea1i b\u1ecb t\u1ed5n th\u1ea5t trong b\u00f9n \u0111\u1ecf. Trong khi \u0111\u00f3, v\u1edbi ph\u01b0\u01a1ng ph\u00e1p Orbite Aluminae, ng\u01b0\u1eddi ta c\u00f3 kh\u1ea3 n\u0103ng thu h\u1ed3i h\u1ea7u nh\u01b0 to\u00e0n b\u1ed9 nh\u1eefng g\u00ec c\u00f3 trong qu\u1eb7ng bauxit.<\/span><\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p Orbite Aluminae c\u0169ng l\u00e0 ph\u01b0\u01a1ng ph\u00e1p th\u1ee7y ph\u00e2n kim lo\u1ea1i nh\u01b0ng s\u1eed d\u1ee5ng axit thay cho baz\u01a1 (ch\u1ea5t ki\u1ec1m). Lo\u1ea1i axit \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0 axit clohy\u0111ric (HCl), lo\u1ea1i axit c\u00f3 trong d\u1ea1 d\u00e0y con ng\u01b0\u1eddi. D\u1ea1 d\u00e0y con ng\u01b0\u1eddi kh\u00f4ng ti\u00eau h\u00f3a silic oxit c\u00f3 trong th\u1ee9c \u0103n, t\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady, trong ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, silic oxit kh\u00f4ng c\u00f3 trong dung d\u1ecbch n\u00ean b\u00f9n \u0111\u1ecf kh\u00f4ng th\u1ec3 h\u00ecnh th\u00e0nh.<\/span><\/p>\n

Trong ph\u01b0\u01a1ng ph\u00e1p Orbite Aluminae, axit \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1ee7y ph\u00e2n qu\u1eb7ng bauxit, tuy nhi\u00ean, ban \u0111\u1ea7u \u00e1p d\u1ee5ng \u0111\u00e3 g\u1eb7p kh\u00f4ng \u00edt kh\u00f3 kh\u0103n. Axit HCl c\u00f3 kh\u1ea3 n\u0103ng \u0103n m\u00f2n m\u1ecdi th\u1ee9, k\u1ec3 c\u1ea3 b\u1ec3 ch\u1ee9a. B\u1edfi v\u1eady, ng\u01b0\u1eddi ta \u0111\u00e3 ti\u1ebfn h\u00e0nh phun m\u1ed9t l\u1edbp l\u00f3t th\u1ee7y tinh l\u00ean th\u00e0nh c\u00e1c b\u1ec3 ch\u1ee9a (hay b\u1ec3 th\u1ee7y ph\u00e2n). \u0110\u00e2y l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 m\u1edbi m\u00e0 ch\u1ec9 v\u00e0i n\u0103m g\u1ea7n \u0111\u00e2y m\u1edbi \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng. L\u1edbp l\u00f3t th\u1ee7y tinh cho ph\u00e9p s\u1eed d\u1ee5ng axit m\u00e0 kh\u00f4ng g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn thi\u1ebft b\u1ecb.<\/span><\/p>\n

\u00a0<\/span><\/div>\n","protected":false},"excerpt":{"rendered":"

\u0110\u1ebfn nay, trong ho\u1ea1t \u0111\u1ed9ng khai th\u00e1c v\u00e0 tinh luy\u1ec7n bauxit \u0111\u1ec3 s\u1ea3n xu\u1ea5t ra alumin tr\u00ean th\u1ebf gi\u1edbi, ng\u01b0\u1eddi ta v\u1eabn s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p Bayer truy\u1ec1n th\u1ed1ng, v\u1edbi nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng l\u1edbn b\u00f9n \u0111\u1ecf, l\u00e0 m\u1ed1i hi\u1ec3m h\u1ecda l\u1edbn v\u1ec1 m\u00f4i tr\u01b0\u1eddng. H\u01a1n n\u1eefa, trong b\u00f9n \u0111\u1ecf c\u00f2n ch\u1ee9a […]<\/p>\n","protected":false},"author":1,"featured_media":111976,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[37],"tags":[],"yoast_head":"\nGi\u1edbi thi\u1ec7u ph\u01b0\u01a1ng ph\u00e1p Orbite Aluminae (Canada): s\u1ea3n xu\u1ea5t alumin t\u1eeb qu\u1eb7ng bauxit kh\u00f4ng t\u1ea1o ra b\u00f9n \u0111\u1ecf - Vi\u1ec7n Khoa h\u1ecdc C\u00f4ng ngh\u1ec7 M\u1ecf - Vinacomin<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/imsat.vn\/?p=111975\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gi\u1edbi thi\u1ec7u ph\u01b0\u01a1ng ph\u00e1p Orbite Aluminae (Canada): s\u1ea3n xu\u1ea5t alumin t\u1eeb qu\u1eb7ng bauxit kh\u00f4ng t\u1ea1o ra b\u00f9n \u0111\u1ecf - Vi\u1ec7n Khoa h\u1ecdc C\u00f4ng ngh\u1ec7 M\u1ecf - Vinacomin\" \/>\n<meta property=\"og:description\" content=\"\u0110\u1ebfn nay, trong ho\u1ea1t \u0111\u1ed9ng khai th\u00e1c v\u00e0 tinh luy\u1ec7n bauxit \u0111\u1ec3 s\u1ea3n xu\u1ea5t ra alumin tr\u00ean th\u1ebf gi\u1edbi, ng\u01b0\u1eddi ta v\u1eabn s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p Bayer truy\u1ec1n th\u1ed1ng, v\u1edbi nh\u01b0\u1ee3c \u0111i\u1ec3m l\u00e0 t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng l\u1edbn b\u00f9n \u0111\u1ecf, l\u00e0 m\u1ed1i hi\u1ec3m h\u1ecda l\u1edbn v\u1ec1 m\u00f4i tr\u01b0\u1eddng. 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