JPS51114396A - Production of alpha-hemihydrate and needle-like crystal of 2-type anhydrous gypsum from sulfur oxide in waste gas - Google Patents

Production of alpha-hemihydrate and needle-like crystal of 2-type anhydrous gypsum from sulfur oxide in waste gas

Info

Publication number
JPS51114396A
JPS51114396A JP50039673A JP3967375A JPS51114396A JP S51114396 A JPS51114396 A JP S51114396A JP 50039673 A JP50039673 A JP 50039673A JP 3967375 A JP3967375 A JP 3967375A JP S51114396 A JPS51114396 A JP S51114396A
Authority
JP
Japan
Prior art keywords
hemihydrate
alpha
needle
crystal
production
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
JP50039673A
Other languages
Japanese (ja)
Other versions
JPS5838363B2 (en
Inventor
Minoru Tanaka
Genzo Hashizume
Hiroshi Matsui
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.)
HIYOUGOKEN
Original Assignee
HIYOUGOKEN
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 HIYOUGOKEN filed Critical HIYOUGOKEN
Priority to JP50039673A priority Critical patent/JPS5838363B2/en
Priority to GB1191077A priority patent/GB1547423A/en
Priority to GB1278976A priority patent/GB1547422A/en
Priority to GB1191177A priority patent/GB1547424A/en
Priority to DE19762659860 priority patent/DE2659860C2/en
Priority to DE19762659861 priority patent/DE2659861C2/en
Priority to DE19762613651 priority patent/DE2613651C2/en
Publication of JPS51114396A publication Critical patent/JPS51114396A/en
Publication of JPS5838363B2 publication Critical patent/JPS5838363B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Treating Waste Gases (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

PURPOSE: To supply a large amount of acicular crystals of α-hemihydrate at low cost, which has high strength after hydration at a process of desulfuration in limegypsum method.
COPYRIGHT: (C)1976,JPO&Japio
JP50039673A 1975-03-31 1975-03-31 Alfa Gatahansuisetsukou Oseizosurhouhou Expired JPS5838363B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP50039673A JPS5838363B2 (en) 1975-03-31 1975-03-31 Alfa Gatahansuisetsukou Oseizosurhouhou
GB1191077A GB1547423A (en) 1975-03-31 1976-03-30 Gypsum whisker composites
GB1278976A GB1547422A (en) 1975-03-31 1976-03-30 Manufacture of gypsum
GB1191177A GB1547424A (en) 1975-03-31 1976-03-30 Method of producing needlelike 11-anhydrite gypsum
DE19762659860 DE2659860C2 (en) 1975-03-31 1976-03-31 Process for the production of calcium sulphate in the form of whisker-shaped anhydrite II crystals
DE19762659861 DE2659861C2 (en) 1975-03-31 1976-03-31 Composites containing plaster whiskers
DE19762613651 DE2613651C2 (en) 1975-03-31 1976-03-31 Process for the production of prismatic and needle-shaped alpha hemihydrate plaster of paris

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50039673A JPS5838363B2 (en) 1975-03-31 1975-03-31 Alfa Gatahansuisetsukou Oseizosurhouhou

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP10380579A Division JPS5532788A (en) 1979-08-14 1979-08-14 Production of gypsum whisker
JP10380679A Division JPS5532789A (en) 1979-08-14 1979-08-14 Production of hexagonal prismatic crystal alpha-type hemihydrate gypsum

Publications (2)

Publication Number Publication Date
JPS51114396A true JPS51114396A (en) 1976-10-08
JPS5838363B2 JPS5838363B2 (en) 1983-08-23

Family

ID=12559606

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50039673A Expired JPS5838363B2 (en) 1975-03-31 1975-03-31 Alfa Gatahansuisetsukou Oseizosurhouhou

Country Status (1)

Country Link
JP (1) JPS5838363B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5482396A (en) * 1977-12-14 1979-06-30 Nippon Hardboard Method of manufacturing bulky calcium sulfate dihydrated salt needleelike crystal and apparatus therefor
JP2013533195A (en) * 2010-09-15 2013-08-22 ベイジン ニュー ビルディング マテリアルズ パブリック リミティド カンパニー Gypsum whisker, reinforced mineral wool sound absorbing plate including the gypsum whisker, and method for manufacturing the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0299256A (en) * 1988-09-30 1990-04-11 Kobe Steel Ltd Metallic mold for high-pressure casting of aluminum alloy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5482396A (en) * 1977-12-14 1979-06-30 Nippon Hardboard Method of manufacturing bulky calcium sulfate dihydrated salt needleelike crystal and apparatus therefor
JP2013533195A (en) * 2010-09-15 2013-08-22 ベイジン ニュー ビルディング マテリアルズ パブリック リミティド カンパニー Gypsum whisker, reinforced mineral wool sound absorbing plate including the gypsum whisker, and method for manufacturing the same

Also Published As

Publication number Publication date
JPS5838363B2 (en) 1983-08-23

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