SU1693847A1 - Process of refining strontium nitrate - Google Patents
Process of refining strontium nitrateInfo
- Publication number
- SU1693847A1 SU1693847A1 SU4754205/26A SU4754205A SU1693847A1 SU 1693847 A1 SU1693847 A1 SU 1693847A1 SU 4754205/26 A SU4754205/26 A SU 4754205/26A SU 4754205 A SU4754205 A SU 4754205A SU 1693847 A1 SU1693847 A1 SU 1693847A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- barium
- strontium
- nitric acid
- volumes
- containing precipitate
- Prior art date
Links
Abstract
FIELD: chemistry, particularly, manufacture of compound fertilizers from apatite using nitrate-involving technology and in passing strontium salts freed of barium. SUBSTANCE: this process includes such steps as treating admixture of strontium and barium nitrates with nitric acid and separating desired product from barium-containing precipitate. Specifically, this process prescribes treating aqueous solution of nitrate admixture having strontium content of 9 to 12 % by nitric acid having concentration of 56 to 60 % to be taken in amount of 15 to 30 solution volumes at temperature of 20 to 50 C. For stepping up degree of refinement, this process demands 15 to 20 volumes of nitric acid per 100 volumes of solution and 25 to 30 volumes in order to minimize losses of strontium with barium-containing precipitate. In order to further reduce losses of strontium, barium-containing precipitate may be additionally treated by for example diluted nitric acid and then separating strontium nitrate. In this case nitric acid should have concentration of 16 to 20 % and be taken in amount of 3.8 to 5.0 parts by mass per 1 part by mass of barium-containing precipitate. EFFECT: greater simplicity and degree of refinement. 4 cl, 2 tbl
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4754205/26A SU1693847A1 (en) | 1989-10-27 | 1989-10-27 | Process of refining strontium nitrate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4754205/26A SU1693847A1 (en) | 1989-10-27 | 1989-10-27 | Process of refining strontium nitrate |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1693847A1 true SU1693847A1 (en) | 1994-07-30 |
Family
ID=60531315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU4754205/26A SU1693847A1 (en) | 1989-10-27 | 1989-10-27 | Process of refining strontium nitrate |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1693847A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5786025A (en) * | 1995-09-07 | 1998-07-28 | Mitsubishi Materials Corporation | Ba and/or Sr titanate films by organic chemical vapor deposition |
US6221322B1 (en) | 1997-11-27 | 2001-04-24 | Dowa Mining Co., Ltd | Strontium nitrate and method for manufacturing same |
-
1989
- 1989-10-27 SU SU4754205/26A patent/SU1693847A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5786025A (en) * | 1995-09-07 | 1998-07-28 | Mitsubishi Materials Corporation | Ba and/or Sr titanate films by organic chemical vapor deposition |
US6221322B1 (en) | 1997-11-27 | 2001-04-24 | Dowa Mining Co., Ltd | Strontium nitrate and method for manufacturing same |
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