FR2480267B1 - - Google Patents

Info

Publication number
FR2480267B1
FR2480267B1 FR8107440A FR8107440A FR2480267B1 FR 2480267 B1 FR2480267 B1 FR 2480267B1 FR 8107440 A FR8107440 A FR 8107440A FR 8107440 A FR8107440 A FR 8107440A FR 2480267 B1 FR2480267 B1 FR 2480267B1
Authority
FR
France
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
FR8107440A
Other languages
French (fr)
Other versions
FR2480267A1 (fr
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
Publication of FR2480267A1 publication Critical patent/FR2480267A1/fr
Application granted granted Critical
Publication of FR2480267B1 publication Critical patent/FR2480267B1/fr
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)
FR8107440A 1980-04-14 1981-04-14 Procede continu pour la production de sulfate de calcium de faible masse specifique Granted FR2480267A1 (fr)

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
FR2480267A1 FR2480267A1 (fr) 1981-10-16
FR2480267B1 true FR2480267B1 (no) 1984-12-28

Family

ID=12792108

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8107440A Granted FR2480267A1 (fr) 1980-04-14 1981-04-14 Procede continu pour la production de sulfate de calcium de faible masse specifique

Country Status (6)

Country Link
JP (1) JPS56145116A (no)
CA (1) CA1175209A (no)
DE (1) DE3114363C2 (no)
FR (1) FR2480267A1 (no)
GB (1) GB2076791B (no)
IT (1) IT1170883B (no)

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
DE3844938C2 (de) * 1987-05-22 1996-09-19 Pro Mineral Ges Verfahren zur Erzeugung von Calciumsulfat-Alphahalbhydrat aus feinteiligem Calciumsulfat und dessen Verwendung
WO1990011256A1 (en) * 1989-03-16 1990-10-04 The United States Gypsum Company 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
GB1198807A (en) * 1963-12-03 1970-07-15 Ici Ltd Continuous process for the production of calcium sulphate alpha-hemihydrate from gypsum
GB1051849A (no) * 1963-12-03
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
CA1175209A (en) 1984-10-02
JPS56145116A (en) 1981-11-11
FR2480267A1 (fr) 1981-10-16
IT1170883B (it) 1987-06-03
GB2076791A (en) 1981-12-09
IT8148251A0 (it) 1981-04-10
JPS6320785B2 (no) 1988-04-30
DE3114363C2 (de) 1985-12-05
GB2076791B (en) 1983-03-09
DE3114363A1 (de) 1982-03-04

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Legal Events

Date Code Title Description
ST Notification of lapse