JPS5453700A - Production of zirconium tungstate - Google Patents
Production of zirconium tungstateInfo
- Publication number
- JPS5453700A JPS5453700A JP11998777A JP11998777A JPS5453700A JP S5453700 A JPS5453700 A JP S5453700A JP 11998777 A JP11998777 A JP 11998777A JP 11998777 A JP11998777 A JP 11998777A JP S5453700 A JPS5453700 A JP S5453700A
- Authority
- JP
- Japan
- Prior art keywords
- zirconium tungstate
- water
- water sol
- tungstates
- salts
- 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.)
- Granted
Links
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain the title catalyst of high ectivity esp. for hydration of olefin by reducting zirconium tungstate, in the presence of H2, formed by the reaction of water sol. tungstates with water sol. Zr salts in a specific molar ratio of W/Zr.
CONSTITUTION: Water sol. tungstates such as Na2WO4.2H2O and water sol. Zr salts such as ZrOCl2.8H2O separately dissolved in water are allowed to react in the molar ratio of W/Zr=1.0W2.0. The resulting zirconium tungstate is then pulverized and reduced with heating at 450W600°C for severalWseveral tens hr in the presence of H2 gas to obtain desired zirconium tungstate. The degree of the reduction is pref. maintained in the range of +5.5W+3 valence of W
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11998777A JPS6044252B2 (en) | 1977-10-07 | 1977-10-07 | Manufacturing method of zirconium tungstate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11998777A JPS6044252B2 (en) | 1977-10-07 | 1977-10-07 | Manufacturing method of zirconium tungstate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5453700A true JPS5453700A (en) | 1979-04-27 |
JPS6044252B2 JPS6044252B2 (en) | 1985-10-02 |
Family
ID=14775094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11998777A Expired JPS6044252B2 (en) | 1977-10-07 | 1977-10-07 | Manufacturing method of zirconium tungstate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6044252B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6183716B1 (en) * | 1997-07-30 | 2001-02-06 | State Of Oregon Acting By And Through The State Board Of Higher Education Of Behalf Of Oregon State University | Solution method for making molybdate and tungstate negative thermal expansion materials and compounds made by the method |
WO2003080516A1 (en) * | 2002-03-22 | 2003-10-02 | Asahi Kasei Kabushiki Kaisha | Tungstate compound and method for production thereof |
-
1977
- 1977-10-07 JP JP11998777A patent/JPS6044252B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6183716B1 (en) * | 1997-07-30 | 2001-02-06 | State Of Oregon Acting By And Through The State Board Of Higher Education Of Behalf Of Oregon State University | Solution method for making molybdate and tungstate negative thermal expansion materials and compounds made by the method |
WO2003080516A1 (en) * | 2002-03-22 | 2003-10-02 | Asahi Kasei Kabushiki Kaisha | Tungstate compound and method for production thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS6044252B2 (en) | 1985-10-02 |
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