FR2480267A1 - Procede continu pour la production de sulfate de calcium de faible masse specifique - Google Patents

Procede continu pour la production de sulfate de calcium de faible masse specifique Download PDF

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Publication number
FR2480267A1
FR2480267A1 FR8107440A FR8107440A FR2480267A1 FR 2480267 A1 FR2480267 A1 FR 2480267A1 FR 8107440 A FR8107440 A FR 8107440A FR 8107440 A FR8107440 A FR 8107440A FR 2480267 A1 FR2480267 A1 FR 2480267A1
Authority
FR
France
Prior art keywords
calcium sulphate
aqueous suspension
reactor
calcium
tubular reactor
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
FR8107440A
Other languages
English (en)
French (fr)
Other versions
FR2480267B1 (enrdf_load_stackoverflow
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
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

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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 true FR2480267A1 (fr) 1981-10-16
FR2480267B1 FR2480267B1 (enrdf_load_stackoverflow) 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 (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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2613346A1 (fr) * 1987-04-04 1988-10-07 Rwk Rhein Westfael Kalkwerke Procede pour la fabrication de semi-hydrate de sulfate de calcium, semi-hydrate de sulfate de calcium fabrique par la mise en oeuvre de ce procede et melange de mortier contenant un tel semi-hydrate

Families Citing this family (8)

* 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
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
JPH03504596A (ja) * 1989-03-16 1991-10-09 ユナイテツド　ステイツ　ジプサム　カンパニー 硫酸カルシウム・マイクロフアイバの製造方法及び装置
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR93737E (fr) * 1963-12-03 1969-05-09 Ici Ltd Procédé pour la fabrication continue de sulfate de calcium alpha-hémihydraté a partir du gypse.
JPS5187494A (en) * 1975-01-31 1976-07-31 Idemitsu Kosan Co Setsukoisukaano seizohoho
US3977890A (en) * 1972-08-16 1976-08-31 Johns-Manville Corporation Method for the preparation of fibrous calcium sulfate hemihydrate
FR2372120A1 (fr) * 1976-11-29 1978-06-23 Idemitsu Kosan Co Gypse spherique et son procede de preparation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1051849A (enrdf_load_stackoverflow) * 1963-12-03
JPS5143833A (ja) * 1974-10-11 1976-04-14 Nishida Marine Boiler Kifukugeetosochi
JPS5319366A (en) * 1976-08-06 1978-02-22 Mitsubishi Chem Ind Ltd Resin compositions
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR93737E (fr) * 1963-12-03 1969-05-09 Ici Ltd Procédé pour la fabrication continue de sulfate de calcium alpha-hémihydraté a partir du gypse.
US3977890A (en) * 1972-08-16 1976-08-31 Johns-Manville Corporation Method for the preparation of fibrous calcium sulfate hemihydrate
JPS5187494A (en) * 1975-01-31 1976-07-31 Idemitsu Kosan Co Setsukoisukaano seizohoho
FR2372120A1 (fr) * 1976-11-29 1978-06-23 Idemitsu Kosan Co Gypse spherique et son procede de preparation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CA1976 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2613346A1 (fr) * 1987-04-04 1988-10-07 Rwk Rhein Westfael Kalkwerke Procede pour la fabrication de semi-hydrate de sulfate de calcium, semi-hydrate de sulfate de calcium fabrique par la mise en oeuvre de ce procede et melange de mortier contenant un tel semi-hydrate
BE1002661A3 (fr) * 1987-04-04 1991-04-30 Rwk Rhein Westfael Kalkwerke Procede pour la fabrication de semi-hydrate de sulfate de calcium.

Also Published As

Publication number Publication date
DE3114363A1 (de) 1982-03-04
IT8148251A0 (it) 1981-04-10
JPS56145116A (en) 1981-11-11
FR2480267B1 (enrdf_load_stackoverflow) 1984-12-28
DE3114363C2 (de) 1985-12-05
IT1170883B (it) 1987-06-03
GB2076791A (en) 1981-12-09
JPS6320785B2 (enrdf_load_stackoverflow) 1988-04-30
CA1175209A (en) 1984-10-02
GB2076791B (en) 1983-03-09

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