JPS56145116A - Continuous preparation of light gypsum - Google Patents

Continuous preparation of light gypsum

Info

Publication number
JPS56145116A
JPS56145116A JP4803780A JP4803780A JPS56145116A JP S56145116 A JPS56145116 A JP S56145116A JP 4803780 A JP4803780 A JP 4803780A JP 4803780 A JP4803780 A JP 4803780A JP S56145116 A JPS56145116 A JP S56145116A
Authority
JP
Japan
Prior art keywords
gypsum
slurry
reactor
steam
raw material
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
JP4803780A
Other languages
English (en)
Other versions
JPS6320785B2 (ja
Inventor
Toshikuni Kaibara
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 true JPS56145116A (en) 1981-11-11
JPS6320785B2 JPS6320785B2 (ja) 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 (ja)
CA (1) CA1175209A (ja)
DE (1) DE3114363C2 (ja)
FR (1) FR2480267A1 (ja)
GB (1) GB2076791B (ja)
IT (1) IT1170883B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008506622A (ja) * 2004-07-15 2008-03-06 ユナイテッド・ステイツ・ジプサム・カンパニー 焼成スタッコを冷却して脱蒸気するための装置及びプロセス

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
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
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 (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1051849A (ja) * 1963-12-03
US3576599A (en) * 1963-12-03 1971-04-27 Ici Ltd Continuous process for the production of calcium suphate alpha-hemihydrate from gypsum
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
JPS5366895A (en) * 1976-11-29 1978-06-14 Idemitsu Kosan Co Ltd Ultra lightweight spherical secondary particle gypsum and production thereof
JPS5482397A (en) * 1977-11-25 1979-06-30 Certain Teed Prod Corp Fibrous calcium sulfate
JPS54131620A (en) * 1978-04-04 1979-10-12 Kubota Ltd Method and apparatus for firing gypsum
JPS54152692A (en) * 1978-05-22 1979-12-01 Kanegafuchi Chem Ind Co Ltd Continuous manufacture of gypsum needle-like crystal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS53128624A (en) * 1977-04-16 1978-11-09 Idemitsu Kosan Co Gypsum compound

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1051849A (ja) * 1963-12-03
US3576599A (en) * 1963-12-03 1971-04-27 Ici Ltd Continuous process for the production of calcium suphate alpha-hemihydrate from gypsum
DE1646624A1 (de) * 1963-12-03 1971-08-12 Ici Ltd Verfahren zur Herstellung von Calciumsulfat-alpha-halbhydrat aus Gips
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
JPS5366895A (en) * 1976-11-29 1978-06-14 Idemitsu Kosan Co Ltd Ultra lightweight spherical secondary particle gypsum and production thereof
JPS5482397A (en) * 1977-11-25 1979-06-30 Certain Teed Prod Corp Fibrous calcium sulfate
JPS54131620A (en) * 1978-04-04 1979-10-12 Kubota Ltd Method and apparatus for firing gypsum
JPS54152692A (en) * 1978-05-22 1979-12-01 Kanegafuchi Chem Ind Co Ltd Continuous manufacture of gypsum needle-like crystal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008506622A (ja) * 2004-07-15 2008-03-06 ユナイテッド・ステイツ・ジプサム・カンパニー 焼成スタッコを冷却して脱蒸気するための装置及びプロセス

Also Published As

Publication number Publication date
FR2480267A1 (fr) 1981-10-16
GB2076791B (en) 1983-03-09
IT8148251A0 (it) 1981-04-10
FR2480267B1 (ja) 1984-12-28
GB2076791A (en) 1981-12-09
IT1170883B (it) 1987-06-03
DE3114363A1 (de) 1982-03-04
CA1175209A (en) 1984-10-02
JPS6320785B2 (ja) 1988-04-30
DE3114363C2 (de) 1985-12-05

Similar Documents

Publication Publication Date Title
JPS56145116A (en) Continuous preparation of light gypsum
JPS57150379A (en) Crushing of cell membrane of chlorella
JPS54112557A (en) Treatment of sludge
JPS5638200A (en) Solid-liquid separating method for anaerobic digestive slurry
JPS56116701A (en) Pretreatment of cellulosic material
JPS57129823A (en) Manufacture of magnesium potassium sulfate by simultaneous chemical reaction of magnesium hydroxide, potassium chloride and sulfuric acid, and manufacture of potassium sulfate
JPS55162426A (en) Manufacture of alpha-type hemihydrate gypsum
JPS54146453A (en) Digestion of organic sludge
JPS5750598A (en) Conversion and treatment of waste such as sludge containing organic substance or the like into solid fuel
JPS55114400A (en) Dehydration and drying of sludge
JPS5573347A (en) Catalyst for production of methacrylic acid
JPS5421990A (en) Process for removing phosphorus compnent in fluorite
JPS5524528A (en) Sludge treating method
JPS55145506A (en) Treatment for dehydration of coal-water slurry
JPS5625934A (en) Uniform mixing and storaging method of dust comprising primarily blast furnace dust and steel making furnace dust
JPS57145156A (en) Production of copper phthalocyanine pigment
JPS5524526A (en) Sludge treating method
JPS565321A (en) Continuous preparation of light weight gypsum
JPS53100583A (en) Method of dehydrating slurry cargo loaded in ship hold
JPS5787897A (en) Treatment of purification plant sludge
JPS51130964A (en) Top feeding pre-coat type vacuum filter
JPS5451995A (en) Preparation of gypsum
JPS57200229A (en) Preparation of high-density manganese carbonate
JPS5310717A (en) Production of cellulose acetate pulp
Dolzhenko UTILIZATION OF ACTIVATED SLUDGE(ISPOL'ZOVANIE AKTIVNOGO ILA)