JPS53141194A - Process for producing aculeate crystal of alpha type hemihydrate gypsum - Google Patents

Process for producing aculeate crystal of alpha type hemihydrate gypsum

Info

Publication number
JPS53141194A
JPS53141194A JP5673577A JP5673577A JPS53141194A JP S53141194 A JPS53141194 A JP S53141194A JP 5673577 A JP5673577 A JP 5673577A JP 5673577 A JP5673577 A JP 5673577A JP S53141194 A JPS53141194 A JP S53141194A
Authority
JP
Japan
Prior art keywords
hemihydrate gypsum
aculeate
type hemihydrate
crystal
producing
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
JP5673577A
Other languages
Japanese (ja)
Other versions
JPS5748488B2 (en
Inventor
Masaharu Abe
Yasuo Fushiki
Yutaka Konoo
Shiyouji Uozumi
Koichi Nakanishi
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.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry 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 Kanegafuchi Chemical Industry Co Ltd filed Critical Kanegafuchi Chemical Industry Co Ltd
Priority to JP5673577A priority Critical patent/JPS53141194A/en
Publication of JPS53141194A publication Critical patent/JPS53141194A/en
Publication of JPS5748488B2 publication Critical patent/JPS5748488B2/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
    • 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 provide the subject process comprising the steps of: adding to an aqueous slurry of a dihydrate gypsum powder a member or more of powders of α-type hemihydrate gypsum, β-type hemihydrate gypsum, and III type anhydrous gypsum as seed crystals, and heating the mixture powder under pressure thereby obtaining aculeate crystals of α-type hemihydrate gypsum of fine diameter adapted for combining with plastics and the like.
COPYRIGHT: (C)1978,JPO&Japio
JP5673577A 1977-05-16 1977-05-16 Process for producing aculeate crystal of alpha type hemihydrate gypsum Granted JPS53141194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5673577A JPS53141194A (en) 1977-05-16 1977-05-16 Process for producing aculeate crystal of alpha type hemihydrate gypsum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5673577A JPS53141194A (en) 1977-05-16 1977-05-16 Process for producing aculeate crystal of alpha type hemihydrate gypsum

Publications (2)

Publication Number Publication Date
JPS53141194A true JPS53141194A (en) 1978-12-08
JPS5748488B2 JPS5748488B2 (en) 1982-10-16

Family

ID=13035761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5673577A Granted JPS53141194A (en) 1977-05-16 1977-05-16 Process for producing aculeate crystal of alpha type hemihydrate gypsum

Country Status (1)

Country Link
JP (1) JPS53141194A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108285165A (en) * 2018-01-22 2018-07-17 湖北工业大学 A kind of preparation method of nanometer calcium sulfate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108285165A (en) * 2018-01-22 2018-07-17 湖北工业大学 A kind of preparation method of nanometer calcium sulfate

Also Published As

Publication number Publication date
JPS5748488B2 (en) 1982-10-16

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