{"id":15689,"date":"2025-07-28T08:52:16","date_gmt":"2025-07-28T08:52:16","guid":{"rendered":"https:\/\/www.epicmicron.com\/?p=15689"},"modified":"2025-07-28T08:52:33","modified_gmt":"2025-07-28T08:52:33","slug":"strategic-mineral-barite-is-still-irreplaceable","status":"publish","type":"post","link":"https:\/\/www.epicmicron.com\/vi\/strategic-mineral-barite-is-still-irreplaceable\/","title":{"rendered":"Kho\u00e1ng s\u1ea3n chi\u1ebfn l\u01b0\u1ee3c \u2013 Barit v\u1eabn kh\u00f4ng th\u1ec3 thay th\u1ebf!"},"content":{"rendered":"

L\u00e0 m\u1ed9t kho\u00e1ng s\u1ea3n c\u00f4ng nghi\u1ec7p chi\u1ebfn l\u01b0\u1ee3c m\u1edbi n\u1ed5i, barit ch\u1ee7 y\u1ebfu bao g\u1ed3m bari sunfat (BaSO4). N\u00f3 c\u00f3 t\u1ef7 tr\u1ecdng cao, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc m\u1ea1nh v\u00e0 \u0111\u1eb7c t\u00ednh kh\u00f4ng \u0111\u1ed9c h\u1ea1i, v\u00f4 h\u1ea1i. V\u00ec v\u1eady, ch\u00fang cho th\u1ea5y tri\u1ec3n v\u1ecdng \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u l\u0129nh v\u1ef1c.<\/p>\n\n\n\n

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barit<\/em><\/figcaption><\/figure>\n\n\n\n

L\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ed9t barit (BaSO4)<\/h2>\n\n\n\n

Ch\u1ea5t l\u00e0m n\u1eb7ng b\u00f9n khoan<\/h3>\n\n\n\n

Barit l\u00e0 nguy\u00ean li\u1ec7u th\u00f4 ph\u1ed5 bi\u1ebfn nh\u1ea5t tr\u00ean th\u1ebf gi\u1edbi \u0111\u1ec3 l\u00e0m ch\u1ea5t \u0111\u1ed9n dung d\u1ecbch khoan. Hi\u1ec7n nay, trong s\u1ea3n xu\u1ea5t gi\u1ebfng d\u1ea7u ho\u1eb7c gi\u1ebfng h\u1ed7n h\u1ee3p d\u1ea7u kh\u00ed tr\u00ean to\u00e0n th\u1ebf gi\u1edbi, barit l\u00e0 nguy\u00ean li\u1ec7u kh\u00f4ng th\u1ec3 thay th\u1ebf. Ho\u1ea1t \u0111\u1ed9ng khoan d\u1ea7u kh\u00ed ti\u00eau th\u1ee5 kho\u1ea3ng 781 t\u1ea5n barit. Barit c\u00f3 th\u1ec3 l\u00e0m t\u0103ng m\u1eadt \u0111\u1ed9 b\u00f9n, t\u1ea1o \u00e1p su\u1ea5t c\u1ed9t ch\u1ea5t l\u1ecfng \u0111\u1ea7y \u0111\u1ee7, c\u00e2n b\u1eb1ng \u00e1p su\u1ea5t v\u1ec9a, ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 phun tr\u00e0o, l\u00e0m m\u00e1t m\u0169i khoan, b\u00f4i tr\u01a1n c\u1ea7n khoan, b\u1ecbt k\u00edn th\u00e0nh l\u1ed7 khoan v\u00e0 mang \u0111i c\u00e1c m\u1ea3nh v\u1ee5n c\u1eaft.<\/p>\n\n\n\n

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BaSO4<\/em><\/figcaption><\/figure>\n\n\n\n

S\u1ea3n ph\u1ea9m h\u00f3a ch\u1ea5t Bari<\/h3>\n\n\n\n

Mu\u1ed1i bari l\u00e0 v\u1eadt li\u1ec7u h\u00f3a h\u1ecdc v\u00f4 c\u01a1 c\u01a1 b\u1ea3n v\u00e0 mu\u1ed1i bari c\u00f3 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt kh\u00e1c nhau c\u00f3 c\u00f4ng d\u1ee5ng kh\u00e1c nhau.<\/p>\n\n\n\n

Th\u1ee9 nh\u1ea5t, n\u00f3 l\u00e0 ngu\u1ed3n ch\u00ednh \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m h\u00f3a ch\u1ea5t bari kh\u00e1c nhau. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t c\u00e1c nguy\u00ean li\u1ec7u h\u00f3a h\u1ecdc nh\u01b0 bari oxit, bari cacbonat, bari clorua, bari nitrat, bari sunfat k\u1ebft t\u1ee7a, bari hydroxit v\u00e0 k\u1ebdm bari tr\u1eafng.<\/p>\n\n\n\n

Th\u1ee9 hai, bari cacbonat c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t g\u1ed1m s\u1ee9 v\u00e0 men g\u1ed1m, th\u1ee7y tinh ch\u1ee9c n\u0103ng, v\u1eadt li\u1ec7u t\u1eeb t\u00ednh, linh ki\u1ec7n \u0111i\u1ec7n t\u1eed v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m mu\u1ed1i bari kh\u00e1c.<\/p>\n\n\n\n

Th\u1ee9 ba, bari sunfat c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u01a1n, ch\u1ea5t ph\u1ee7, nh\u1ef1a, pin, luy\u1ec7n kim v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c, trong \u0111\u00f3 bari sunfat bi\u1ebfn t\u00ednh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong l\u1edbp ph\u1ee7 n\u00f4ng nghi\u1ec7p, m\u00e0ng b\u1ea3o v\u1ec7 nh\u00e0 k\u00ednh, m\u00e0ng b\u1ecdc v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c.<\/p>\n\n\n\n

Bari cacbonat \u0111\u1ed9 tinh khi\u1ebft cao c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p tinh th\u1ec3 l\u1ecfng v\u00e0 ch\u1ea5t n\u1ec1n th\u1ee7y tinh quang h\u1ecdc. Bari nitrat c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1ea3n xu\u1ea5t k\u00ednh quang h\u1ecdc, m\u00e0n h\u00ecnh LCD v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111i\u1ec7n t\u1eed cao c\u1ea5p. N\u00f3 c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t oxy h\u00f3a, thu\u1ed1c th\u1eed ph\u00e2n t\u00edch, c\u0169ng nh\u01b0 trong ph\u00e1o s\u00e1ng, ph\u00e1o hoa, men g\u1ed1m v\u00e0 thu\u1ed1c. K\u1ebdm bari tr\u1eafng, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 lithopone, l\u00e0 m\u1ed9t lo\u1ea1i b\u1ed9t m\u00e0u tr\u1eafng ch\u1ea5t l\u01b0\u1ee3ng cao th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. N\u00f3 l\u00e0 h\u1ed7n h\u1ee3p c\u1ee7a bari sulfat (70%) v\u00e0 k\u1ebdm sunfua (30%). Bari sulfat k\u1ebft t\u1ee7a ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong y h\u1ecdc, s\u01a1n ph\u1ee7 v\u00e0 m\u1ef1c in trung v\u00e0 cao c\u1ea5p, nh\u1ef1a, cao su, th\u1ee7y tinh, g\u1ed1m s\u1ee9 v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c. Bari sulfat y t\u1ebf ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong l\u0129nh v\u1ef1c h\u00ecnh \u1ea3nh y t\u1ebf.<\/p>\n\n\n\n

Ch\u1ea5t \u0111\u1ed9n ch\u1ee9c n\u0103ng<\/h3>\n\n\n\n

1 Ch\u1ea5t \u0111\u1ed9n cao su v\u00e0 nh\u1ef1a<\/h4>\n\n\n\n

Vi\u1ec7c b\u1ed5 sung bari sunfat v\u00e0o c\u00e1c s\u1ea3n ph\u1ea9m cao su v\u00e0 nh\u1ef1a c\u00f3 th\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, \u0111\u1ed9 b\u1ec1n k\u00e9o, \u0111\u1ed9 c\u1ee9ng v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u00e3o h\u00f3a, \u0111\u1ed3ng th\u1eddi gi\u1ea3m chi ph\u00ed. Vi\u1ec7c b\u1ed5 sung bari sunfat v\u00e0o s\u01a1n v\u00e0 l\u1edbp ph\u1ee7 c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 d\u00e0y, \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a m\u00e0ng s\u01a1n, th\u1eadm ch\u00ed c\u00f2n mang l\u1ea1i cho l\u1edbp ph\u1ee7 m\u1ed9t s\u1ed1 ch\u1ee9c n\u0103ng nh\u1ea5t \u0111\u1ecbnh.<\/p>\n\n\n\n

2 Ch\u1ea5t \u0111\u1ed9n l\u00e0m gi\u1ea5y<\/h4>\n\n\n\n

Trong ng\u00e0nh s\u1ea3n xu\u1ea5t gi\u1ea5y, b\u1ed9t barit c\u00f3 \u0111\u1ed9 m\u1ecbn cao c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n v\u00e0 ch\u1ea5t \u0111\u1ed9n ph\u1ee7 cho gi\u1ea5y tr\u1eafng v\u00e0 gi\u1ea5y tr\u00e1ng \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 tr\u1eafng v\u00e0 \u0111\u1ed9 ph\u1ee7 b\u1ec1 m\u1eb7t.<\/p>\n\n\n\n

3 L\u1edbp ph\u1ee7 d\u1eabn \u0111i\u1ec7n<\/h4>\n\n\n\n

S\u1eed d\u1ee5ng SnO2 ho\u1eb7c Sb2O3 bi\u1ebfn t\u00ednh l\u00e0m l\u1edbp b\u1ecdc \u0111\u1ec3 ph\u1ee7 l\u00ean barit, v\u00e0 s\u1eed d\u1ee5ng n\u00f3 nh\u01b0 m\u1ed9t l\u1edbp ph\u1ee7 d\u1eabn \u0111i\u1ec7n m\u00e0u s\u00e1ng. C\u00e1c l\u1edbp ph\u1ee7 d\u1eabn \u0111i\u1ec7n n\u00e0y c\u00f3 \u0111i\u1ec7n tr\u1edf su\u1ea5t th\u1ea5p. Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c s\u1ea3n ph\u1ea9m qu\u00e2n s\u1ef1, y t\u1ebf v\u00e0 \u0111i\u1ec7n t\u1eed \u0111\u1ec3 gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n t\u1eeb v\u00e0 mang l\u1ea1i hi\u1ec7u qu\u1ea3 ch\u1ed1ng t\u0129nh \u0111i\u1ec7n.<\/p>\n\n\n\n

V\u1eadt li\u1ec7u b\u1ea3o v\u1ec7 b\u1ee9c x\u1ea1<\/h3>\n\n\n\n

V\u00ec barit c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 tia X v\u00e0 tia gamma hi\u1ec7u qu\u1ea3, n\u00ean ng\u01b0\u1eddi ta th\u01b0\u1eddng s\u1eed d\u1ee5ng barit l\u00e0m v\u1eadt li\u1ec7u cho qu\u1ea7n \u00e1o b\u1ea3o h\u1ed9 y t\u1ebf, l\u00e0m l\u1edbp c\u00e1ch ly v\u00e0 l\u1edbp b\u1ea3o v\u1ec7 b\u00ean ngo\u00e0i.<\/p>\n\n\n\n

B\u00ea t\u00f4ng barit do She Ziying v\u00e0 c\u00e1c c\u1ed9ng s\u1ef1 ph\u00e1t tri\u1ec3n, s\u1eed d\u1ee5ng barit l\u00e0m c\u1ed1t li\u1ec7u quan tr\u1ecdng. N\u00f3 c\u00f3 th\u1ec3 l\u00e0m t\u0103ng m\u1eadt \u0111\u1ed9 bi\u1ec3u ki\u1ebfn v\u00e0 \u0111\u1ed9 \u0111\u1eb7c c\u1ee7a b\u00ea t\u00f4ng, \u0111\u1ed3ng th\u1eddi c\u00f3 kh\u1ea3 n\u0103ng che ch\u1eafn t\u1ed1t tr\u01b0\u1edbc tia X v\u00e0 tia gamma.<\/p>\n\n\n\n

Trong ng\u00e0nh x\u00e2y d\u1ef1ng, c\u00e1c k\u1ebft c\u1ea5u b\u00ea t\u00f4ng m\u1eadt \u0111\u1ed9 cao s\u1eed d\u1ee5ng barit l\u00e0m c\u1ed1t li\u1ec7u ch\u00ednh s\u1edf h\u1eefu c\u00e1c \u0111\u1eb7c t\u00ednh b\u1ea3o v\u1ec7 b\u1ee9c x\u1ea1 \u0111\u1eb7c bi\u1ec7t. Kh\u1ea3 n\u0103ng gi\u1ea3m b\u1ee9c x\u1ea1 c\u1ee7a n\u00f3 t\u0103ng t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi n\u1ed3ng \u0111\u1ed9 barit. Do \u0111\u00f3, ch\u00fang t\u00f4i s\u1eed d\u1ee5ng n\u00f3 \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c m\u1ed1i nguy hi\u1ec3m b\u1ee9c x\u1ea1 t\u1eeb thi\u1ebft b\u1ecb y t\u1ebf trong b\u1ec7nh vi\u1ec7n, nh\u00e0 m\u00e1y \u0111i\u1ec7n h\u1ea1t nh\u00e2n, ph\u00f2ng th\u00ed nghi\u1ec7m c\u1ee7a vi\u1ec7n nghi\u00ean c\u1ee9u v\u00e0 c\u00e1c c\u01a1 s\u1edf kh\u00e1c.<\/p>\n\n\n\n

Liu Jinwei v\u00e0 c\u00e1c c\u1ed9ng s\u1ef1 \u0111\u00e3 \u0111\u1ec1 xu\u1ea5t s\u1eed d\u1ee5ng barit \u0111\u1ec3 s\u1ea3n xu\u1ea5t nano bari sunfat. Khi th\u00eam n\u00f3 v\u00e0o dung d\u1ecbch k\u00e9o s\u1ee3i viscose, n\u00f3 t\u1ea1o ra m\u1ed9t m\u00e0ng composite m\u1edbi cho qu\u1ea7n \u00e1o ch\u1ed1ng tia X y t\u1ebf. V\u1eadt li\u1ec7u n\u00e0y ch\u1ee9ng minh kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 tia X c\u1ee7a 44% cao h\u01a1n so v\u1edbi m\u00e0ng viscose nguy\u00ean ch\u1ea5t.<\/p>\n\n\n\n

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B\u1ed9t Bari Sulfate<\/em><\/figcaption><\/figure>\n\n\n\n

V\u1eadt li\u1ec7u t\u1eeb t\u00ednh<\/h3>\n\n\n\n

Ngo\u00e0i c\u00e1c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i c\u1ee7a barit bi\u1ebfn t\u00ednh, barit th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m ngu\u1ed3n bari \u0111\u1ec3 t\u1ed5ng h\u1ee3p v\u1eadt li\u1ec7u ferit bari.<\/p>\n\n\n\n

V\u1eadt li\u1ec7u t\u1eeb t\u00ednh bari ferit (BaFe\u2081\u2082O\u2081\u2089) l\u00e0 s\u1ea3n ph\u1ea9m nam ch\u00e2m v\u0129nh c\u1eedu c\u00f4ng nghi\u1ec7p \u0111\u1ea7u ti\u00ean c\u1ee7a Trung Qu\u1ed1c. V\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh t\u1eeb t\u00ednh, quang h\u1ecdc v\u00e0 \u0111i\u1ec7n t\u1eeb tuy\u1ec7t v\u1eddi, v\u1eadt li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong c\u00f4ng ngh\u1ec7 5G, c\u1ea3m bi\u1ebfn, c\u00f4ng ngh\u1ec7 t\u00e0ng h\u00ecnh, c\u00e1p quang, ph\u01b0\u01a1ng ti\u1ec7n ghi \u00e2m, nam ch\u00e2m v\u0129nh c\u1eedu v\u00e0 y sinh. Ngo\u00e0i ra, v\u1eadt li\u1ec7u t\u1eeb t\u00ednh bari ferit c\u00f2n c\u00f3 ti\u1ec1m n\u0103ng l\u00e0m ch\u1ea5t x\u00fac t\u00e1c quang cho qu\u00e1 tr\u00ecnh l\u1ecdc n\u01b0\u1edbc v\u00e0 kh\u00f4ng kh\u00ed.<\/p>\n\n\n\n

Nh\u1edd c\u00f4ng ngh\u1ec7 nano, v\u1eadt li\u1ec7u t\u1eeb t\u00ednh bari ferit c\u00f3 th\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c t\u1ea5m nano bari hexaferit. Ch\u00fang ta c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng n\u00f3 cho c\u00e1c \u1ee9ng d\u1ee5ng y sinh, bao g\u1ed3m d\u1eabn thu\u1ed1c v\u00e0 ho\u1ea1t t\u00ednh kh\u00e1ng khu\u1ea9n.<\/p>\n\n\n\n

V\u1eadt li\u1ec7u ch\u1eafn s\u00f3ng \u0111i\u1ec7n t\u1eeb<\/h3>\n\n\n\n

Bari sunfat bi\u1ebfn t\u00ednh nano c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb barit \u0111\u00f3ng vai tr\u00f2 l\u00e0 v\u1eadt li\u1ec7u ch\u00ednh trong l\u1edbp ph\u1ee7 t\u00e0ng h\u00ecnh. N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 v\u00e0 b\u1ea3o v\u1ec7 s\u00f3ng \u0111i\u1ec7n t\u1eeb<\/a> d\u00f9ng cho m\u1ee5c \u0111\u00edch t\u00e0ng h\u00ecnh qu\u00e2n s\u1ef1.<\/p>\n\n\n\n

Ch\u1ea5t kho\u00e1ng h\u00f3a xi m\u0103ng<\/h3>\n\n\n\n

Trong s\u1ea3n xu\u1ea5t xi m\u0103ng, vi\u1ec7c b\u1ed5 sung barit th\u00fac \u0111\u1ea9y \u0111\u00e1ng k\u1ec3 s\u1ef1 h\u00ecnh th\u00e0nh v\u00e0 ho\u1ea1t h\u00f3a C3S, \u0111\u1ed3ng th\u1eddi c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng clinker. N\u00f3 l\u00e0m t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 xi m\u0103ng ban \u0111\u1ea7u th\u00eam 20-25% v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 sau n\u00e0y th\u00eam kho\u1ea3ng 10%. \u0110i\u1ec1u n\u00e0y x\u1ea3y ra khi gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 thi\u00eau k\u1ebft clinker t\u1eeb 1450\u00b0C xu\u1ed1ng 1300\u00b0C\u00b150\u00b0C.<\/p>\n\n\n\n

Vi\u1ec7c b\u1ed5 sung barit th\u00edch h\u1ee3p v\u00e0o nguy\u00ean li\u1ec7u xi m\u0103ng g\u1ed1c than gi\u00fap t\u0103ng c\u01b0\u1eddng \u0111\u00e1ng k\u1ec3 c\u01b0\u1eddng \u0111\u1ed9, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u01b0\u1eddng \u0111\u1ed9 s\u1edbm, c\u1ee7a xi m\u0103ng c\u00f3 t\u1ef7 l\u1ec7 b\u00e3o h\u00f2a clinker th\u1ea5p. \u0110i\u1ec1u n\u00e0y cung c\u1ea5p m\u1ed9t gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3 \u0111\u1ec3 t\u1eadn d\u1ee5ng to\u00e0n di\u1ec7n than \u0111\u00e1 v\u00e0 s\u1ea3n xu\u1ea5t xi m\u0103ng \u00edt canxi, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng, c\u01b0\u1eddng \u0111\u1ed9 s\u1edbm v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 cao.<\/p>\n\n\n\n

Ch\u1ea5t tr\u1ee3 dung v\u00e0 ch\u1ea5t l\u00e0m trong th\u1ee7y tinh<\/h3>\n\n\n\n

Trong s\u1ea3n xu\u1ea5t th\u1ee7y tinh, bari sunfat v\u1eeba \u0111\u00f3ng vai tr\u00f2 l\u00e0 ch\u1ea5t tr\u1ee3 dung v\u1eeba l\u00e0 ch\u1ea5t l\u00e0m trong. L\u01b0u hu\u1ef3nh trioxit (SO\u2083) c\u1ee7a n\u00f3 h\u00f2a tan t\u1ed1t trong th\u1ee7y tinh \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, nh\u01b0ng l\u1ea1i gi\u1ea3m khi \u1edf nhi\u1ec7t \u0111\u1ed9 cao, ph\u00e2n h\u1ee7y th\u00e0nh l\u01b0u hu\u1ef3nh \u0111ioxit (SO\u2082) v\u00e0 oxy (O\u2082). \u0110i\u1ec1u n\u00e0y t\u1ea1o ra hi\u1ec7u \u1ee9ng khu\u1ea5y v\u00e0 l\u00e0m trong, gi\u00fap c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a th\u1ee7y tinh n\u00f3ng ch\u1ea3y, gi\u1ea3m b\u1ecdt kh\u00ed v\u00e0 c\u00e1c khuy\u1ebft t\u1eadt kh\u00e1c, t\u0103ng c\u01b0\u1eddng t\u00ednh ch\u1ea5t quang h\u1ecdc v\u00e0 t\u0103ng \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi k\u00ednh quang h\u1ecdc v\u00e0 k\u00ednh trang tr\u00ed y\u00eau c\u1ea7u c\u00e1c \u0111\u1eb7c t\u00ednh quang h\u1ecdc c\u1ee5 th\u1ec3, s\u1ea3n ph\u1ea9m n\u00e0y s\u1ebd c\u1ea3i thi\u1ec7n hi\u1ec7u \u1ee9ng h\u00ecnh \u1ea3nh v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng quang h\u1ecdc \u0111\u1ed3ng th\u1eddi k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n

Ch\u1ea5t c\u1ea3n quang<\/h3>\n\n\n\n

Bari sulfat \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ch\u1ea5t t\u01b0\u01a1ng ph\u1ea3n X-quang l\u00e2m s\u00e0ng ph\u1ed5 bi\u1ebfn \u0111\u1ec3 h\u00ecnh \u1ea3nh h\u00f3a \u0111\u01b0\u1eddng ti\u00eau h\u00f3a. C\u00f4ng ngh\u1ec7 bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 k\u1ebft t\u1ee7a nhanh v\u00e0 h\u00ecnh \u1ea3nh m\u1edd c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m truy\u1ec1n th\u1ed1ng. Khi k\u1ebft h\u1ee3p v\u1edbi c\u00e1c h\u1ea1t nano v\u00e0 y h\u1ecdc c\u1ed5 truy\u1ec1n Trung Qu\u1ed1c, c\u00f4ng ngh\u1ec7 n\u00e0y mang l\u1ea1i nhi\u1ec1u h\u00ecnh th\u1ee9c \u1ee9ng d\u1ee5ng v\u00e0 ti\u1ec1m n\u0103ng ph\u00e1t tri\u1ec3n \u0111a d\u1ea1ng.<\/p>\n\n\n\n

Ph\u1ee5 gia pin lithium-ion<\/p>\n\n\n\n

Barit \u1edf k\u00edch th\u01b0\u1edbc nano l\u00e0 ch\u1ea5t pha t\u1ea1p v\u1eadt li\u1ec7u c\u1ef1c d\u01b0\u01a1ng c\u1ee7a pin lithium-ion gi\u00fap t\u0103ng c\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u1ea5m \u0111i\u1ec7n c\u1ef1c, ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng c\u1ee9ng v\u00e0 t\u0103ng tu\u1ed5i th\u1ecd c\u1ee7a pin l\u00ean kho\u1ea3ng 20%.<\/p>\n\n\n\n

Ch\u1ea5t x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i<\/h3>\n\n\n\n

Barit bi\u1ebfn t\u00ednh tr\u1edf n\u00ean ph\u00f9 h\u1ee3p h\u01a1n cho c\u00e1c \u1ee9ng d\u1ee5ng m\u00f4i tr\u01b0\u1eddng nh\u01b0 x\u1eed l\u00fd n\u01b0\u1edbc th\u1ea3i v\u00e0 h\u1ea5p ph\u1ee5 ch\u1ea5t \u00f4 nhi\u1ec5m. V\u00ed d\u1ee5, s\u1ef1 h\u1ea5p th\u1ee5 crom l\u00e2u d\u00e0i c\u1ee7a barit x\u1ea3y ra th\u00f4ng qua s\u1ef1 ph\u00e1t tri\u1ec3n qu\u00e1 m\u1ee9c c\u1ee7a dung d\u1ecbch r\u1eafn Ba(CrO\u2084,SO\u2084) v\u1edbi c\u1ea5u tr\u00fac barit. K\u1ebft t\u1ee7a Ba(CrO\u2084,SO\u2084) tr\u00ean barit l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 n\u1ed3ng \u0111\u1ed9 cromat \u0111\u1ed9c h\u1ea1i, c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng m\u00f4i tr\u01b0\u1eddng n\u01b0\u1edbc.<\/p>\n\n\n\n

Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n\n\n\n

M\u1eb7c d\u00f9 Trung Qu\u1ed1c s\u1edf h\u1eefu ngu\u1ed3n t\u00e0i nguy\u00ean barit d\u1ed3i d\u00e0o, nh\u01b0ng ng\u00e0nh c\u00f4ng nghi\u1ec7p n\u00e0y t\u1eeb l\u00e2u \u0111\u00e3 t\u1eadp trung v\u00e0o vi\u1ec7c xu\u1ea5t kh\u1ea9u nguy\u00ean li\u1ec7u th\u00f4, ch\u1ecbu \u1ea3nh h\u01b0\u1edfng b\u1edfi c\u00e1c ho\u1ea1t \u0111\u1ed9ng khai th\u00e1c tr\u00e0n lan v\u00e0 ph\u00e1t tri\u1ec3n gi\u00e1 tr\u1ecb th\u1ea5p, \u0111e d\u1ecda \u0111\u1ebfn an ninh t\u00e0i nguy\u00ean.<\/p>\n\n\n\n

V\u1edbi s\u1ef1 ti\u1ebfn b\u1ed9 c\u00f4ng ngh\u1ec7, ng\u00e0nh c\u00f4ng nghi\u1ec7p barit \u0111ang ph\u00e1t tri\u1ec3n theo h\u01b0\u1edbng v\u1eadt li\u1ec7u composite c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao, \u0111\u1ed9 si\u00eau m\u1ecbn v\u00e0 hi\u1ec7u su\u1ea5t cao. Nh\u1eefng ph\u00e1t tri\u1ec3n g\u1ea7n \u0111\u00e2y v\u1ec1 v\u1eadt li\u1ec7u nano v\u00e0 v\u1eadt li\u1ec7u gel \u0111\u00e3 n\u00e2ng cao \u0111\u00e1ng k\u1ec3 gi\u00e1 tr\u1ecb s\u1eed d\u1ee5ng c\u1ee7a barit. Nh\u1eefng n\u1ed7 l\u1ef1c trong t\u01b0\u01a1ng lai c\u1ea7n t\u1eadp trung v\u00e0o c\u1ea3i ti\u1ebfn ch\u1ebf bi\u1ebfn s\u00e2u, ph\u00e1t tri\u1ec3n chi\u1ebfn l\u01b0\u1ee3c c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p m\u1edbi n\u1ed5i v\u00e0 m\u1edf r\u1ed9ng \u1ee9ng d\u1ee5ng \u0111\u1ec3 thi\u1ebft l\u1eadp m\u1ed9t c\u01a1 ch\u1ebf ph\u00e1t tri\u1ec3n ng\u00e0nh c\u00f4ng nghi\u1ec7p barit chuy\u00ean s\u00e2u, hi\u1ec7u qu\u1ea3 v\u00e0 xanh t\u1ea1i Trung Qu\u1ed1c.<\/p>\n\n\n\n

B\u1ed9t s\u1eed thi<\/h2>\n\n\n\n

M\u00e1y m\u00f3c b\u1ed9t Epic<\/a> cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p hi\u1ec7u su\u1ea5t cao trong l\u0129nh v\u1ef1c nghi\u1ec1n v\u00e0 ph\u00e2n lo\u1ea1i si\u00eau m\u1ecbn, gi\u00fap c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p \u0111\u1ea1t \u0111\u01b0\u1ee3c quy tr\u00ecnh x\u1eed l\u00fd v\u1eadt li\u1ec7u v\u01b0\u1ee3t tr\u1ed9i. C\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn c\u1ee7a ch\u00fang t\u00f4i \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 \u0111\u00e1ng tin c\u1eady, hi\u1ec7u qu\u1ea3 v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng cao cho nhi\u1ec1u \u1ee9ng d\u1ee5ng kh\u00e1c nhau, bao g\u1ed3m v\u1eadt li\u1ec7u ch\u1eafn b\u1ee9c x\u1ea1 v\u00e0 b\u1ea3o h\u1ed9 y t\u1ebf.<\/p>\n\n\n\n

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