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JPS5261198A - Process for production of prismatic alpha-type gypsum hemihydrate - Google Patents

Process for production of prismatic alpha-type gypsum hemihydrate

Info

Publication number
JPS5261198A
JPS5261198A JP13696975A JP13696975A JPS5261198A JP S5261198 A JPS5261198 A JP S5261198A JP 13696975 A JP13696975 A JP 13696975A JP 13696975 A JP13696975 A JP 13696975A JP S5261198 A JPS5261198 A JP S5261198A
Authority
JP
Japan
Prior art keywords
prismatic
alpha
production
gypsum hemihydrate
type gypsum
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
JP13696975A
Other languages
Japanese (ja)
Other versions
JPS5834411B2 (en
Inventor
Yukio Takigawa
Toshinori Tsutsumi
Yoshio Kanemasa
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 Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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 Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP13696975A priority Critical patent/JPS5834411B2/en
Publication of JPS5261198A publication Critical patent/JPS5261198A/en
Publication of JPS5834411B2 publication Critical patent/JPS5834411B2/en
Expired 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
    • C01F11/466—Conversion of one form of calcium sulfate to another

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

PURPOSE: To produce pure prismatic α-type hemihydrate of gypsum in a short period by adding specially combined mineralizing agents to the slurry which is composed of hemihydrate of gypsum and water and by performing thermal treatment under pressure.
COPYRIGHT: (C)1977,JPO&Japio
JP13696975A 1975-11-14 1975-11-14 General Alphabet Expired JPS5834411B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13696975A JPS5834411B2 (en) 1975-11-14 1975-11-14 General Alphabet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13696975A JPS5834411B2 (en) 1975-11-14 1975-11-14 General Alphabet

Publications (2)

Publication Number Publication Date
JPS5261198A true JPS5261198A (en) 1977-05-20
JPS5834411B2 JPS5834411B2 (en) 1983-07-26

Family

ID=15187704

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13696975A Expired JPS5834411B2 (en) 1975-11-14 1975-11-14 General Alphabet

Country Status (1)

Country Link
JP (1) JPS5834411B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110040991A (en) * 2019-05-07 2019-07-23 东北大学 A method of quickly preparing short cylinder sulfate hemihydrate calcium material using calcium sulphate dihydrate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110040991A (en) * 2019-05-07 2019-07-23 东北大学 A method of quickly preparing short cylinder sulfate hemihydrate calcium material using calcium sulphate dihydrate

Also Published As

Publication number Publication date
JPS5834411B2 (en) 1983-07-26

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