JPS5265796A - Method for production of anhydrous gypsum of type ii - Google Patents

Method for production of anhydrous gypsum of type ii

Info

Publication number
JPS5265796A
JPS5265796A JP14176475A JP14176475A JPS5265796A JP S5265796 A JPS5265796 A JP S5265796A JP 14176475 A JP14176475 A JP 14176475A JP 14176475 A JP14176475 A JP 14176475A JP S5265796 A JPS5265796 A JP S5265796A
Authority
JP
Japan
Prior art keywords
type
anhydrous gypsum
production
gypsum
otu
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
JP14176475A
Other languages
Japanese (ja)
Other versions
JPS5347317B2 (en
Inventor
Kikuji Tsuneyoshi
Kyoji Kubo
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP14176475A priority Critical patent/JPS5265796A/en
Publication of JPS5265796A publication Critical patent/JPS5265796A/en
Publication of JPS5347317B2 publication Critical patent/JPS5347317B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

PURPOSE: To carry otu continuously inversion into anhydrous gypsum of type II by maintaining slurry of gypsum dihydrate containing specified amount of sodium citrate for an appropriate period under hydrothermal condition.
COPYRIGHT: (C)1977,JPO&Japio
JP14176475A 1975-11-27 1975-11-27 Method for production of anhydrous gypsum of type ii Granted JPS5265796A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14176475A JPS5265796A (en) 1975-11-27 1975-11-27 Method for production of anhydrous gypsum of type ii

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14176475A JPS5265796A (en) 1975-11-27 1975-11-27 Method for production of anhydrous gypsum of type ii

Publications (2)

Publication Number Publication Date
JPS5265796A true JPS5265796A (en) 1977-05-31
JPS5347317B2 JPS5347317B2 (en) 1978-12-20

Family

ID=15299627

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14176475A Granted JPS5265796A (en) 1975-11-27 1975-11-27 Method for production of anhydrous gypsum of type ii

Country Status (1)

Country Link
JP (1) JPS5265796A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0379266A2 (en) * 1989-01-17 1990-07-25 Mitsubishi Jukogyo Kabushiki Kaisha Production method for anhydrous gypsum
JP2007269520A (en) * 2006-03-30 2007-10-18 Sumitomo Osaka Cement Co Ltd Quick-hardening cement composition and method for producing the same
JP2008297145A (en) * 2007-05-30 2008-12-11 Sumitomo Osaka Cement Co Ltd Method of producing anhydrous gypsum and production equipment for the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50141763A (en) * 1974-05-02 1975-11-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50141763A (en) * 1974-05-02 1975-11-14

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0379266A2 (en) * 1989-01-17 1990-07-25 Mitsubishi Jukogyo Kabushiki Kaisha Production method for anhydrous gypsum
JP2007269520A (en) * 2006-03-30 2007-10-18 Sumitomo Osaka Cement Co Ltd Quick-hardening cement composition and method for producing the same
JP4677360B2 (en) * 2006-03-30 2011-04-27 住友大阪セメント株式会社 Quick-hardening cement composition and method for producing the same
JP2008297145A (en) * 2007-05-30 2008-12-11 Sumitomo Osaka Cement Co Ltd Method of producing anhydrous gypsum and production equipment for the same

Also Published As

Publication number Publication date
JPS5347317B2 (en) 1978-12-20

Similar Documents

Publication Publication Date Title
JPS51135900A (en) Method for prod uction of the stable sodium percarbonate
JPS5221296A (en) Producing method of concentrated phosphoric acid containing gypsum hem ihydrate which can be easily filtrated
JPS5248594A (en) Method for producing type gypsum hemihydrate
FR2320904A1 (en) PROCESS FOR PREPARING HIGH PURE ALKALINE PHOSPHATES
ZA764435B (en) Removal of fluorine from wet process phosphoric acid by calcium
EG11139A (en) Process for preparing of 7(d-alpha-amino-1,4-cyclohexadien-1-ylacetamido)desacetoxycephalosporanic acid dihydrate
JPS5252871A (en) Method of treating exhaust gas
JPS5265796A (en) Method for production of anhydrous gypsum of type ii
JPS553391A (en) Production method of sodium bicarbonate by carbonation
JPS5271456A (en) Synthesis of 1alpha-hydroxysteroid derivatives
JPS51111388A (en) Method for control of concentration of added chemicals
JPS5227720A (en) Process for preparation of leucylagumatine compounds
JPS5265795A (en) Method for production of anhydrous gypsum of type ii
JPS5278375A (en) Aligning method
JPS5212476A (en) Production method of gapped ascr
JPS5229473A (en) Pure water production apparatus
CS187333B2 (en) Method of producing derivatives of prostanoic acid
IL50810A0 (en) Continuous process for the production of phosphoric acid by the wet method
JPS5248262A (en) Method of treatment of waste water from phosphoric acid wet production plant
JPS51115912A (en) Method for producing novel plaster
JPS52101692A (en) Removal of dissolved sulfate ion in wet process phosphoric acid
JPS51125376A (en) Process for preparing urea clathrate compounds of ascorbic acid deriva tives
JPS51147500A (en) Method of producing alkali silicate solution with high molar ratio
JPS5342195A (en) Production of long-fibered hemihydrate gypsum crystals
JPS5261197A (en) Process for production of needle-like alpha-type gypsum hemihydrate