JPS5481199A - Method of reforming wet by product gypsum phosphate - Google Patents
Method of reforming wet by product gypsum phosphateInfo
- Publication number
- JPS5481199A JPS5481199A JP14884177A JP14884177A JPS5481199A JP S5481199 A JPS5481199 A JP S5481199A JP 14884177 A JP14884177 A JP 14884177A JP 14884177 A JP14884177 A JP 14884177A JP S5481199 A JPS5481199 A JP S5481199A
- Authority
- JP
- Japan
- Prior art keywords
- phosphate
- solution
- preferably ranges
- washing
- hemihydration
- 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
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
PURPOSE: To provide gypsum phosphate reformed in the coagulability and the strength applicable for white beautiful interior building material free of organic component through washing thereof with a solution of mineral acid after a pulp washing by a solution of condensed phosphate.
CONSTITUTION: A wet by-product gypsum phosphate which was obtained by a hemihydration method of a bihydration-hemihydration method for production and filtration in the form of hemihydrate is subjected to a water washing sufficient to remove phosphate component attached. Then, it is slurried by a solution of condensed phosphate. For the phosphate, soda tripolyphosphate and soda pyrophosphate can be used. The concentration of the solution preferably ranges from 1 to 10%. The concentration of the slurry preferably ranges from 10 to 50% and the ideal treatment temperature ranges from 50 to 100°C. Then, the slurry is heated in a solution of mineral acid such as sulfuric acid and chloric acid. After a filtration and water washing, activated and reformed gypsum phosphate is produced. The temperature of the activation preferably ranges from 80 to 90°C.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14884177A JPS5481199A (en) | 1977-12-13 | 1977-12-13 | Method of reforming wet by product gypsum phosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14884177A JPS5481199A (en) | 1977-12-13 | 1977-12-13 | Method of reforming wet by product gypsum phosphate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5481199A true JPS5481199A (en) | 1979-06-28 |
| JPS5737529B2 JPS5737529B2 (en) | 1982-08-10 |
Family
ID=15461926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14884177A Granted JPS5481199A (en) | 1977-12-13 | 1977-12-13 | Method of reforming wet by product gypsum phosphate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5481199A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH081553U (en) * | 1993-05-06 | 1996-11-05 | 進 平井 | "External installation set of stanchions for flower pots" |
-
1977
- 1977-12-13 JP JP14884177A patent/JPS5481199A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH081553U (en) * | 1993-05-06 | 1996-11-05 | 進 平井 | "External installation set of stanchions for flower pots" |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5737529B2 (en) | 1982-08-10 |
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