JPS57183309A - Preparation of heteropolyphosphoric acid of tungsten and molybdenum type - Google Patents
Preparation of heteropolyphosphoric acid of tungsten and molybdenum typeInfo
- Publication number
- JPS57183309A JPS57183309A JP6424381A JP6424381A JPS57183309A JP S57183309 A JPS57183309 A JP S57183309A JP 6424381 A JP6424381 A JP 6424381A JP 6424381 A JP6424381 A JP 6424381A JP S57183309 A JPS57183309 A JP S57183309A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- component
- exchange resin
- ion exchange
- ratio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
PURPOSE: To prepare high-purity heteropolyphosphoric acid of the W and Mo type safely and economically, by blending a phosphorus component with a specific W or Mo component in a ratio of the desired composition, subjecting it to ion exchange using a cation exchange resin.
CONSTITUTION: A phosphorus component such as sodium dihydrogenphosphate, etc. is blended with a water-soluble ortho-tungstate such as sodium tungstate or a water-soluble ortho-molybdate such as sodium molybdate, etc. as a W or Mo component in such a way that a molar ratio of PO4/WO3 or MoO3 is made into a ratio which is obtained by calculating the composition of the desired heteropolyphosphoric acid. This mixed solution is treated with a cationic exchange resin (H type) so that the cation in the solution is subjected to ion exchange with the hydrogen ion in the ion exchange resin. Simultaneously in this process, an aqueous solution of high-purity 12-tungstophosphoric acid or 12-molybdophosphoric acid is prepared directly.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6424381A JPS57183309A (en) | 1981-04-30 | 1981-04-30 | Preparation of heteropolyphosphoric acid of tungsten and molybdenum type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6424381A JPS57183309A (en) | 1981-04-30 | 1981-04-30 | Preparation of heteropolyphosphoric acid of tungsten and molybdenum type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57183309A true JPS57183309A (en) | 1982-11-11 |
Family
ID=13252504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6424381A Pending JPS57183309A (en) | 1981-04-30 | 1981-04-30 | Preparation of heteropolyphosphoric acid of tungsten and molybdenum type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57183309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61201707A (en) * | 1985-03-04 | 1986-09-06 | Toshiba Corp | Production of molybdenum or tungsten powder having high purity |
| KR100994291B1 (en) * | 2008-06-26 | 2010-11-12 | 주식회사 효성 | Method of preparing 12-phosphotungstic acid |
-
1981
- 1981-04-30 JP JP6424381A patent/JPS57183309A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61201707A (en) * | 1985-03-04 | 1986-09-06 | Toshiba Corp | Production of molybdenum or tungsten powder having high purity |
| KR100994291B1 (en) * | 2008-06-26 | 2010-11-12 | 주식회사 효성 | Method of preparing 12-phosphotungstic acid |
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