JPS6320785B2 - - Google Patents

Info

Publication number
JPS6320785B2
JPS6320785B2 JP55048037A JP4803780A JPS6320785B2 JP S6320785 B2 JPS6320785 B2 JP S6320785B2 JP 55048037 A JP55048037 A JP 55048037A JP 4803780 A JP4803780 A JP 4803780A JP S6320785 B2 JPS6320785 B2 JP S6320785B2
Authority
JP
Japan
Prior art keywords
gypsum
reactor
slurry
present
aqueous slurry
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.)
Expired
Application number
JP55048037A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56145116A (en
Inventor
Toshikuni Minahara
Hiroshi Nishitani
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 JP4803780A priority Critical patent/JPS56145116A/ja
Priority to CA000374609A priority patent/CA1175209A/en
Priority to GB8111034A priority patent/GB2076791B/en
Priority to DE3114363A priority patent/DE3114363C2/de
Priority to IT48251/81A priority patent/IT1170883B/it
Priority to FR8107440A priority patent/FR2480267A1/fr
Publication of JPS56145116A publication Critical patent/JPS56145116A/ja
Publication of JPS6320785B2 publication Critical patent/JPS6320785B2/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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density

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)
JP4803780A 1980-04-14 1980-04-14 Continuous preparation of light gypsum Granted JPS56145116A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP4803780A JPS56145116A (en) 1980-04-14 1980-04-14 Continuous preparation of light gypsum
CA000374609A CA1175209A (en) 1980-04-14 1981-04-03 Continuous process for the production of light-weight calcium sulfate
GB8111034A GB2076791B (en) 1980-04-14 1981-04-08 Alpha calcium sulfate hemihydrate production
DE3114363A DE3114363C2 (de) 1980-04-14 1981-04-09 Verfahren zur Herstellung von faserartigem, zumindest teilweise zu sphärischen Teilchen geformten Calciumsulfat-Hemihydrat vom α-Typ
IT48251/81A IT1170883B (it) 1980-04-14 1981-04-10 Procedimento continuo per produrre solfato di calcio di peso leggero
FR8107440A FR2480267A1 (fr) 1980-04-14 1981-04-14 Procede continu pour la production de sulfate de calcium de faible masse specifique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4803780A JPS56145116A (en) 1980-04-14 1980-04-14 Continuous preparation of light gypsum

Publications (2)

Publication Number Publication Date
JPS56145116A JPS56145116A (en) 1981-11-11
JPS6320785B2 true JPS6320785B2 (enrdf_load_stackoverflow) 1988-04-30

Family

ID=12792108

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4803780A Granted JPS56145116A (en) 1980-04-14 1980-04-14 Continuous preparation of light gypsum

Country Status (6)

Country Link
JP (1) JPS56145116A (enrdf_load_stackoverflow)
CA (1) CA1175209A (enrdf_load_stackoverflow)
DE (1) DE3114363C2 (enrdf_load_stackoverflow)
FR (1) FR2480267A1 (enrdf_load_stackoverflow)
GB (1) GB2076791B (enrdf_load_stackoverflow)
IT (1) IT1170883B (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3239669A1 (de) * 1982-10-27 1984-05-03 Joh. A. Benckiser Gmbh, 6700 Ludwigshafen Kontinuierliches verfahren zur gewinnung von industriell verwertbarem gips aus industrie-abfallgips
DE3536321A1 (de) * 1985-10-11 1987-04-23 Bischoff Gasreinigung Verfahren und reaktor fuer die herstellung von alphahalbhydratgips aus calciumsulfatdihydrat von nach dem nasswaschverfahren mit kalk arbeitenden rauchgasentschwefelungsanlagen
DE3615739A1 (de) * 1986-05-09 1987-11-12 Benckiser Gmbh Joh A Kontinuierliches verfahren und vorrichtung zur gewinnung von industriell verwertbarem gips aus industrieabfallgips
DE3711367A1 (de) * 1987-04-04 1988-10-13 Rwk Rhein Westfael Kalkwerke Verfahren zur herstellung von calciumsulfat-halbhydrat
DE3819652C3 (de) * 1987-05-22 1996-08-01 Pro Mineral Ges Verfahren zur Erzeugung von als Baustoff geeignetem Calciumsulfat-Alphahalbhydrat aus feuchtem, feinteiligem Rauchgasentschwefelungsgips und seine Verwendung
CA2024146A1 (en) * 1989-03-16 1990-09-17 Michael R. Lynn Process and apparatus for producing calcium sulfate microfibers
US7765813B2 (en) * 2004-07-15 2010-08-03 United States Gypsum Company Apparatus and process for cooling and de-steaming calcined stucco
CN103723757B (zh) * 2012-10-10 2015-08-05 深圳兰度生物材料有限公司 医用级α-半水硫酸钙制备方法
EP3782725A1 (en) * 2019-08-21 2021-02-24 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk Onderzoek TNO Reactor for the hydrothermal treatment of biomass

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1051849A (enrdf_load_stackoverflow) * 1963-12-03
GB1198807A (en) * 1963-12-03 1970-07-15 Ici Ltd Continuous process for the production of calcium sulphate alpha-hemihydrate from gypsum
US3977890A (en) * 1972-08-16 1976-08-31 Johns-Manville Corporation Method for the preparation of fibrous calcium sulfate hemihydrate
JPS5143833A (ja) * 1974-10-11 1976-04-14 Nishida Marine Boiler Kifukugeetosochi
JPS5187494A (en) * 1975-01-31 1976-07-31 Idemitsu Kosan Co Setsukoisukaano seizohoho
JPS5319366A (en) * 1976-08-06 1978-02-22 Mitsubishi Chem Ind Ltd Resin compositions
JPS5817132B2 (ja) * 1976-11-29 1983-04-05 出光興産株式会社 球状セツコウおよびその製造方法
JPS53128624A (en) * 1977-04-16 1978-11-09 Idemitsu Kosan Co Gypsum compound
US4152408A (en) * 1977-11-25 1979-05-01 Certain-Teed Corporation Fibrous calcium sulfate
JPS5857384B2 (ja) * 1978-04-04 1983-12-20 株式会社クボタ 石こうの焼成方法並びに装置
JPS54152692A (en) * 1978-05-22 1979-12-01 Kanegafuchi Chem Ind Co Ltd Continuous manufacture of gypsum needle-like crystal

Also Published As

Publication number Publication date
IT1170883B (it) 1987-06-03
FR2480267B1 (enrdf_load_stackoverflow) 1984-12-28
DE3114363A1 (de) 1982-03-04
DE3114363C2 (de) 1985-12-05
CA1175209A (en) 1984-10-02
IT8148251A0 (it) 1981-04-10
GB2076791B (en) 1983-03-09
JPS56145116A (en) 1981-11-11
FR2480267A1 (fr) 1981-10-16
GB2076791A (en) 1981-12-09

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