NL8003307A - Werkwijze voor het winnen van calciumverbindingen en zwaveldioxide uit calciumsulfaat, en calciumverbin- dingen en zwaveldioxide verkregen volgens deze werk- wijze. - Google Patents

Werkwijze voor het winnen van calciumverbindingen en zwaveldioxide uit calciumsulfaat, en calciumverbin- dingen en zwaveldioxide verkregen volgens deze werk- wijze. Download PDF

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Publication number
NL8003307A
NL8003307A NL8003307A NL8003307A NL8003307A NL 8003307 A NL8003307 A NL 8003307A NL 8003307 A NL8003307 A NL 8003307A NL 8003307 A NL8003307 A NL 8003307A NL 8003307 A NL8003307 A NL 8003307A
Authority
NL
Netherlands
Prior art keywords
calcium
sulfur dioxide
recrystallization
calcium sulfate
sulfuric acid
Prior art date
Application number
NL8003307A
Other languages
English (en)
Dutch (nl)
Original Assignee
Stamicarbon
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 Stamicarbon filed Critical Stamicarbon
Priority to NL8003307A priority Critical patent/NL8003307A/nl
Priority to ZA00813533A priority patent/ZA813533B/xx
Priority to EP81200618A priority patent/EP0041761A1/en
Priority to JP8674381A priority patent/JPS5727906A/ja
Publication of NL8003307A publication Critical patent/NL8003307A/nl

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide
    • C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds
    • C01B17/506—Preparation of sulfur dioxide by reduction of sulfur compounds of calcium sulfates
    • 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
    • C01F11/02—Oxides or hydroxides
    • C01F11/08—Oxides or hydroxides by reduction of sulfates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
NL8003307A 1980-06-06 1980-06-06 Werkwijze voor het winnen van calciumverbindingen en zwaveldioxide uit calciumsulfaat, en calciumverbin- dingen en zwaveldioxide verkregen volgens deze werk- wijze. NL8003307A (nl)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL8003307A NL8003307A (nl) 1980-06-06 1980-06-06 Werkwijze voor het winnen van calciumverbindingen en zwaveldioxide uit calciumsulfaat, en calciumverbin- dingen en zwaveldioxide verkregen volgens deze werk- wijze.
ZA00813533A ZA813533B (en) 1980-06-06 1981-05-26 Process for recovering calcium compounds and sulphur dioxide from calcium sulphate,and calcium compounds and sulphur dioxide obtained according to this process
EP81200618A EP0041761A1 (en) 1980-06-06 1981-06-04 Process for recovering calcium compounds and sulphur dioxide from calcium sulphate, and calcium compounds and sulphur dioxide obtained according to this process
JP8674381A JPS5727906A (en) 1980-06-06 1981-06-05 Recovery of calcium compound and sulfur dioxide from calcium sulfate and calcium compound and sulfur dioxide obtained thereby

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8003307 1980-06-06
NL8003307A NL8003307A (nl) 1980-06-06 1980-06-06 Werkwijze voor het winnen van calciumverbindingen en zwaveldioxide uit calciumsulfaat, en calciumverbin- dingen en zwaveldioxide verkregen volgens deze werk- wijze.

Publications (1)

Publication Number Publication Date
NL8003307A true NL8003307A (nl) 1982-01-04

Family

ID=19835427

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8003307A NL8003307A (nl) 1980-06-06 1980-06-06 Werkwijze voor het winnen van calciumverbindingen en zwaveldioxide uit calciumsulfaat, en calciumverbin- dingen en zwaveldioxide verkregen volgens deze werk- wijze.

Country Status (4)

Country Link
EP (1) EP0041761A1 (ja)
JP (1) JPS5727906A (ja)
NL (1) NL8003307A (ja)
ZA (1) ZA813533B (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011020881A (ja) * 2009-07-15 2011-02-03 Akita Univ 硫酸カルシウム含有材料の酸化カルシウム及び元素硫黄への転換方法、並びに、硫酸カルシウム含有材料のリサイクル方法及びリサイクルシステム
DE102020100254A1 (de) 2020-01-08 2021-07-08 Thyssenkrupp Ag Integriertes Verfahren zur Herstellung eines Baustoffs aus Phosphorgips
DE102020100241A1 (de) 2020-01-08 2021-07-08 Thyssenkrupp Ag Verfahren zur Herstellung von Phosphorsäure und Klinkerprozess-geeigneter Kalziumsulfatqualität zur kommerziellen und industriellen Verwertung von Kalziumsulfat
DE102020100260A1 (de) 2020-01-08 2021-07-08 Thyssenkrupp Ag Integriertes Verfahren zur Herstellung von Schwefelsäureprozess-geeigneter Schwefeldioxidqualität aus Kalziumsulfat/Phosphorgips aus der Phosphorsäureproduktion
DE102020100238A1 (de) 2020-01-08 2021-07-08 Thyssenkrupp Ag Integriertes Verfahren zur kommerziellen und industriellen Verwertung von Kalziumsulfat aus der Phosphorsäureproduktion
DE102020100249A1 (de) 2020-01-08 2021-07-08 Thyssenkrupp Ag Integriertes Verfahren zur kommerziellen und industriellen Verwertung von Kalziumsulfat unter Gewinnung von Seltenen Erden aus der Phosphorsäureproduktion
CN114014275B (zh) * 2021-12-03 2023-06-02 中国科学院过程工程研究所 一种工业副产石膏制备硅钙基料与硫酸的装置及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE502284A (ja) * 1950-04-04
US2956859A (en) * 1957-12-26 1960-10-18 Nat Lead Co Preparation of anhydrite
US3607036A (en) * 1968-02-09 1971-09-21 Cities Service Co Recovery of sulfur from gypsum
SU262867A1 (ru) * 1968-10-14 1975-01-15 Способ получени серной кислоты из фосфогипса
US3607045A (en) * 1969-10-29 1971-09-21 Univ Iowa State Res Found Inc Process for high temperature gaseous reduction of calcium sulfate
DE2728148A1 (de) * 1977-06-22 1979-05-17 Visch Khim T I Verfahren zur herstellung von granuliertem fluorfreiem phosphogips

Also Published As

Publication number Publication date
EP0041761A1 (en) 1981-12-16
JPS5727906A (en) 1982-02-15
ZA813533B (en) 1982-09-29

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A1B A search report has been drawn up
BT A document has been added to the application laid open to public inspection
BV The patent application has lapsed