{"id":9626,"date":"2023-09-06T03:59:49","date_gmt":"2023-09-06T03:59:49","guid":{"rendered":"https:\/\/vospan.com\/?p=9626"},"modified":"2024-03-20T07:52:47","modified_gmt":"2024-03-20T07:52:47","slug":"ket-hop-xrf-va-xrd-trong-phan-tich-khoang-san-dia-chat","status":"publish","type":"post","link":"https:\/\/vospan.com\/ket-hop-xrf-va-xrd-trong-phan-tich-khoang-san-dia-chat\/","title":{"rendered":"K\u1ebft h\u1ee3p XRF v\u00e0 XRD trong ph\u00e2n t\u00edch kho\u00e1ng s\u1ea3n \u0111\u1ecba ch\u1ea5t"},"content":{"rendered":"
Hu\u1ef3nh quang tia X (XRF)<\/a><\/strong>, ICP-OES, ICP-MS v\u00e0 c\u00e1c k\u1ef9 thu\u1eadt ph\u00e2n t\u00edch nguy\u00ean t\u1ed1 kh\u00e1c l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 cung c\u1ea5p th\u00f4ng tin \u0111\u1ea7y \u0111\u1ee7 nh\u1ea5t c\u00f3 th\u1ec3 v\u1ec1 c\u00e1c nguy\u00ean t\u1ed1 ch\u00ednh, ph\u1ee5 v\u00e0 vi l\u01b0\u1ee3ng.<\/p>\n Nhi\u1ec5u x\u1ea1 tia X (XRD)<\/strong><\/a>, IR, Raman v\u00e0 c\u00e1c k\u1ef9 thu\u1eadt ph\u00e2n t\u00edch c\u1ea5u tr\u00fac kh\u00e1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 thu \u0111\u01b0\u1ee3c th\u00e0nh ph\u1ea7n kho\u00e1ng v\u1eadt v\u00e0 pha t\u00f9y thu\u1ed9c v\u00e0o b\u1ea3n ch\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 n\u1ed3ng \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a kho\u00e1ng ch\u1ea5t quan t\u00e2m.<\/p>\n Trong s\u1ed1 c\u00e1c k\u1ef9 thu\u1eadt cung c\u1ea5p th\u00f4ng tin b\u1ed5 sung n\u00e0y, XRD v\u00e0 XRF \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t cho c\u1ea3 ph\u00e2n t\u00edch \u0111\u1ecbnh t\u00ednh v\u00e0 \u0111\u1ecbnh l\u01b0\u1ee3ng.\u00a0XRD th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m \u0111\u1ecba ch\u1ea5t v\u00e0 khai th\u00e1c m\u1ecf (khoa h\u1ecdc tr\u00e1i \u0111\u1ea5t) \u0111\u1ec3 m\u00f4 t\u1ea3 th\u00e0nh ph\u1ea7n kho\u00e1ng v\u1eadt trong khi XRF th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc.<\/p>\n Trong m\u1ed9t m\u1eabu tinh th\u1ec3 \u0111i\u1ec3n h\u00ecnh, XRF c\u00f3 th\u1ec3 \u0111o t\u1ed5ng n\u1ed3ng \u0111\u1ed9 Ca ho\u1eb7c t\u1ed5ng n\u1ed3ng \u0111\u1ed9 Fe.\u00a0XRD cho ph\u00e9p ph\u00e2n t\u00edch c\u00e1c pha ho\u1eb7c h\u1ee3p ch\u1ea5t trong v\u1eadt li\u1ec7u tinh th\u1ec3 nh\u01b0 \u0111\u00e1, kho\u00e1ng ch\u1ea5t, v\u1eadt li\u1ec7u v\u00e0 s\u1ea3n ph\u1ea9m oxit.\u00a0V\u00ec v\u1eady, trong c\u00f9ng m\u1ed9t m\u1eabu, XRD c\u00f3 th\u1ec3 ph\u00e2n t\u00edch \u0111\u1ea7y \u0111\u1ee7 h\u01a1n v\u00e0 cung c\u1ea5p th\u00f4ng tin v\u1ec1 h\u00e0m l\u01b0\u1ee3ng CaO, CaCO3 , Ca(OH)2 v\u00e0 c\u00e1c pha Ca kh\u00e1c ho\u1eb7c n\u1ed3ng \u0111\u1ed9 c\u1ee7a c\u00e1c pha Fe nh\u01b0 FeO, Fe2 O3, Fe3 O4, Fe3 C v\u00e0 c\u00e1c pha Fe kh\u00e1c.\u00a0Do \u0111\u00f3, vi\u1ec7c k\u1ebft h\u1ee3p k\u1ebft qu\u1ea3 c\u1ee7a c\u1ea3 hai k\u1ef9 thu\u1eadt XRF v\u00e0 XRD cho ph\u00e9p m\u00f4 t\u1ea3 \u0111\u1eb7c t\u00ednh t\u1ed1t h\u01a1n v\u00e0 \u0111\u1ea7y \u0111\u1ee7 h\u01a1n c\u1ee7a b\u1ea5t k\u1ef3 m\u1eabu tinh th\u1ec3 n\u00e0o.<\/p>\n \u0110\u1eb7c t\u00ednh nguy\u00ean t\u1ed1 v\u00e0 pha\/kho\u00e1ng v\u1eadt c\u1ee7a v\u1eadt li\u1ec7u \u0111\u1ecba ch\u1ea5t c\u00f3 t\u1ea7m quan tr\u1ecdng h\u00e0ng \u0111\u1ea7u c\u1ea3 v\u1ec1 \u0111\u00e1nh gi\u00e1 t\u00e0i nguy\u00ean thi\u00ean nhi\u00ean v\u00e0 v\u1ec1 m\u1eb7t th\u0103m d\u00f2, l\u00e0m gi\u00e0u v\u00e0 qu\u00e1 tr\u00ecnh khai th\u00e1c cho nhu c\u1ea7u c\u00f4ng nghi\u1ec7p.<\/p>\n C\u00e1c thi\u1ebft b\u1ecb XRD \u0111\u1ec3 b\u00e0n, d\u1ec5 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e2n t\u00edch m\u1eabu \u0111\u1ecba ch\u1ea5t, t\u1eeb ph\u00e2n t\u00edch th\u00f4ng th\u01b0\u1eddng \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng c\u1ea5p \u0111\u1ed9 nghi\u00ean c\u1ee9u, hi\u1ec7u su\u1ea5t cao, ti\u00ean ti\u1ebfn h\u01a1n d\u00e0nh cho c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m \u0111i\u1ec1u tra. C\u00e1c m\u1eabu XRD \u0111\u1ec3 b\u00e0n<\/a> s\u1eed d\u1ee5ng c\u00e1c ngu\u1ed3n n\u0103ng l\u01b0\u1ee3ng tia X kh\u00e1c nhau v\u00e0 mang l\u1ea1i m\u1ee9c \u0111\u1ed9 ti\u1ec7n l\u1ee3i c\u0169ng nh\u01b0 hi\u1ec7u su\u1ea5t kh\u00e1c nhau so v\u1edbi c\u00e1c m\u1eabu \u0111\u1eb7t tr\u00ean s\u00e0n v\u00ec ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n gi\u1eefa c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m ho\u1eb7c \u0111\u1ebfn n\u01a1i c\u1ea7n ph\u00e2n t\u00edch v\u00e0 kh\u00f4ng y\u00eau c\u1ea7u b\u1ea5t k\u1ef3 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111\u1eb7c bi\u1ec7t n\u00e0o.<\/p>\n