JPS5510406A - Production of gypsum - Google Patents
Production of gypsumInfo
- Publication number
- JPS5510406A JPS5510406A JP8096778A JP8096778A JPS5510406A JP S5510406 A JPS5510406 A JP S5510406A JP 8096778 A JP8096778 A JP 8096778A JP 8096778 A JP8096778 A JP 8096778A JP S5510406 A JPS5510406 A JP S5510406A
- Authority
- JP
- Japan
- Prior art keywords
- gypsum
- inorg
- substance
- sol
- acid
- 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 efficiently produce spherical gypsum made of fibrous gypsum in simple operation by adding powder of inorg. substance such as talc when gypsum, hemihydrate gypsum or sol. anhydrous gypsum is slurried and subjected to hydrothermal reaction.
CONSTITUTION: Gypsum, hemihydrate gypsum or sol. anhydrous gypsum is added to water or an aq. soln. contg. inorg. acid, org. acid or water sol. org. substance such as ethylene glycol, and below 10μ powder of inorg. substance such as talc, silicic acid, silicic anhydride or CaCO3 is further added in an amt. of 0.001W30% to the amt. of the raw material gypsum to slurry the gypsum. This slurry is then subjected to hydrothermal reaction at 100W180, pref. 105W140°C usually under press. with agitating for 1W90min. The resulting spherical gypsum has a uniform diameter and low bulk density, and it is used as building materials such as a panel, insulating material and heartwood, a filler for plastics, an adsorbent, a filter medium, a catalyst, etc.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8096778A JPS5510406A (en) | 1978-07-05 | 1978-07-05 | Production of gypsum |
GB8015586A GB2053874B (en) | 1977-12-29 | 1978-12-15 | Production of calcium sulphate |
GB7848753A GB2011363B (en) | 1977-12-29 | 1978-12-15 | Production of calcium sulphate |
DE2854722A DE2854722C2 (en) | 1977-12-29 | 1978-12-19 | Process for the production of fibrous and / or spherical α-calcium sulfate hemihydrate |
CA318,237A CA1115025A (en) | 1977-12-29 | 1978-12-19 | Process for producing calcium sulfate |
FR7836549A FR2413339B1 (en) | 1977-12-29 | 1978-12-27 | PROCESS FOR THE PREPARATION OF CALCIUM SULFATE |
IT52460/78A IT1158192B (en) | 1977-12-29 | 1978-12-27 | PROCEDURE FOR PRODUCING CALCIUM SULPHATE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8096778A JPS5510406A (en) | 1978-07-05 | 1978-07-05 | Production of gypsum |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5510406A true JPS5510406A (en) | 1980-01-24 |
JPS5755649B2 JPS5755649B2 (en) | 1982-11-25 |
Family
ID=13733274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8096778A Granted JPS5510406A (en) | 1977-12-29 | 1978-07-05 | Production of gypsum |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5510406A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58146741A (en) * | 1982-02-25 | 1983-09-01 | Yamaha Motor Co Ltd | Spring adjuster of shock absorber |
JPS6353940U (en) * | 1986-09-26 | 1988-04-11 | ||
JPS63115942U (en) * | 1987-01-17 | 1988-07-26 | ||
JPS6465016A (en) * | 1987-05-22 | 1989-03-10 | Rhein Westfael Elect Werk Ag | Manufacture of calcium sulfide-alpha-hemihydrate from fine powder calcium sulfide dihydrate |
JPH0160044U (en) * | 1987-10-14 | 1989-04-17 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6115662U (en) * | 1984-07-03 | 1986-01-29 | 日本ワイパブレ−ド株式会社 | blade rubber |
US6603835B2 (en) | 1997-09-08 | 2003-08-05 | Ultratec, Inc. | System for text assisted telephony |
US8515024B2 (en) | 2010-01-13 | 2013-08-20 | Ultratec, Inc. | Captioned telephone service |
TWI590842B (en) * | 2016-07-12 | 2017-07-11 | 三鼎生物科技股份有限公司 | A METHOD FOR PRODUCING THE α-CALCIUM SULFATE HEMIHYDRATE BONE GRAFT |
-
1978
- 1978-07-05 JP JP8096778A patent/JPS5510406A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58146741A (en) * | 1982-02-25 | 1983-09-01 | Yamaha Motor Co Ltd | Spring adjuster of shock absorber |
JPS6353940U (en) * | 1986-09-26 | 1988-04-11 | ||
JPS63115942U (en) * | 1987-01-17 | 1988-07-26 | ||
JPH0422116Y2 (en) * | 1987-01-17 | 1992-05-20 | ||
JPS6465016A (en) * | 1987-05-22 | 1989-03-10 | Rhein Westfael Elect Werk Ag | Manufacture of calcium sulfide-alpha-hemihydrate from fine powder calcium sulfide dihydrate |
JPH0160044U (en) * | 1987-10-14 | 1989-04-17 |
Also Published As
Publication number | Publication date |
---|---|
JPS5755649B2 (en) | 1982-11-25 |
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