JPS5510406A - Production of gypsum - Google Patents

Production of gypsum

Info

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
Application number
JP8096778A
Other languages
Japanese (ja)
Other versions
JPS5755649B2 (en
Inventor
Masahiko Shiraishi
Shiro Kozakura
Chikao Shiho
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Kosan Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd
Priority to JP8096778A priority Critical patent/JPS5510406A/en
Priority to GB8015586A priority patent/GB2053874B/en
Priority to GB7848753A priority patent/GB2011363B/en
Priority to DE2854722A priority patent/DE2854722C2/en
Priority to CA318,237A priority patent/CA1115025A/en
Priority to FR7836549A priority patent/FR2413339B1/en
Priority to IT52460/78A priority patent/IT1158192B/en
Publication of JPS5510406A publication Critical patent/JPS5510406A/en
Publication of JPS5755649B2 publication Critical patent/JPS5755649B2/ja
Granted legal-status Critical Current

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
JP8096778A 1977-12-29 1978-07-05 Production of gypsum Granted JPS5510406A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
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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