Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Sulfate Ion → Calcium Sulfate Dihydrate
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Sulfate Ion | HCID 1117 | — |
| 반응물 | Lithium Chloride | HCID 433294 | — |
| 반응물 | Magnesium | HCID 5462224 | — |
| 반응물 | Boron | HCID 5462311 | — |
| 반응물 | Calcium Hydroxide | HCID 6093208 | — |
| 용매 | Sodium chloride; water | HCID 57417360 | — |
| 생성물 | Calcium Sulfate Dihydrate | HCID 24928 | — |
| 생성물 | Calcium tetra borate | HCID 22238541 | — |
반응 단계
A brine containing 0.77% lithium in the form of lithium chloride, and 0.28% boron, as well as magnesium and sulfate impurities, was treated with a slurry of slaked lime to a pH of 11.2 to precipitate magnesium as magnesium hydroxide and then treated with a sufficient amount of a 20% solution of calcium chloride to form calcium tetra borate (CaB2O4.6H2O), and gypsum. At pH 11.2, only gypsum precipitated and boron was reduced to 0.15%B due to a dilution effect. Upon concentrating the brine by evaporation, to 40% Li, calcium tetraborate hydrate precipitated and the boron was maintained at 0.13%B.
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US04261960 |
| 출처 데이터셋 | uspto-grants-1981_04 |
| ORD ID | ord-79e30cea6502495a9a5df975b136fb91 |
| 출처 메모 | uspto-grants-1981_04 |