FR2367030A1 - PROCESS FOR MANUFACTURING A PLASTER FROM FERROUS SULPHATE AND PRODUCT OBTAINED FOLLOWING THIS PROCESS - Google Patents

PROCESS FOR MANUFACTURING A PLASTER FROM FERROUS SULPHATE AND PRODUCT OBTAINED FOLLOWING THIS PROCESS

Info

Publication number
FR2367030A1
FR2367030A1 FR7730115A FR7730115A FR2367030A1 FR 2367030 A1 FR2367030 A1 FR 2367030A1 FR 7730115 A FR7730115 A FR 7730115A FR 7730115 A FR7730115 A FR 7730115A FR 2367030 A1 FR2367030 A1 FR 2367030A1
Authority
FR
France
Prior art keywords
product obtained
plaster
calcium
reaction mixture
manufacturing
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.)
Pending
Application number
FR7730115A
Other languages
French (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.)
Evonik LIL Ltd
Original Assignee
Laporte Industries 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 Laporte Industries Ltd filed Critical Laporte Industries Ltd
Publication of FR2367030A1 publication Critical patent/FR2367030A1/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B11/00—Calcium sulfate cements
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

a. L'invention concerne un produit pour plâtrage obtenu à partir de sulfate ferreux. b. La fabrication de ce produit comprend la formation d'un mélange de réaction consistant essentiellement en sulfate ferreux, l'acide libre éventuellement présent ayant été neutralisé, et en un ou plusieurs composés de calcium choisis parmi le carbonate de calcium, l'hydroxyde de calcium et l'oxyde de calcium, dans un milieu aqueux, et le chauffage du mélange de réaction en présence de vapeur d'eau à une température supérieure à 100 degrés C et sous une pression supérieure à la pression atmosphérique. c. Le procédé donne un plâtre de bonne qualité en utilisant comme matière première un produit résiduaire gênant obtenu dans de nombreuses fabrications importantes (décapage à l'acide sulfurique par exemple).at. The invention relates to a plastering product obtained from ferrous sulfate. b. The manufacture of this product comprises the formation of a reaction mixture consisting essentially of ferrous sulfate, the free acid possibly present having been neutralized, and of one or more calcium compounds selected from calcium carbonate, calcium hydroxide and calcium oxide, in an aqueous medium, and heating the reaction mixture in the presence of water vapor at a temperature above 100 degrees C and at a pressure above atmospheric pressure. vs. The process gives a good quality plaster by using as raw material a troublesome waste product obtained in many important fabrications (pickling with sulfuric acid for example).

FR7730115A 1976-10-07 1977-10-06 PROCESS FOR MANUFACTURING A PLASTER FROM FERROUS SULPHATE AND PRODUCT OBTAINED FOLLOWING THIS PROCESS Pending FR2367030A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4165576A GB1581539A (en) 1976-10-07 1976-10-07 Making plaster from ferrous sulphate

Publications (1)

Publication Number Publication Date
FR2367030A1 true FR2367030A1 (en) 1978-05-05

Family

ID=10420692

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7730115A Pending FR2367030A1 (en) 1976-10-07 1977-10-06 PROCESS FOR MANUFACTURING A PLASTER FROM FERROUS SULPHATE AND PRODUCT OBTAINED FOLLOWING THIS PROCESS

Country Status (7)

Country Link
JP (1) JPS5346498A (en)
AU (1) AU506984B2 (en)
CA (1) CA1084957A (en)
DE (1) DE2745023A1 (en)
ES (1) ES462972A1 (en)
FR (1) FR2367030A1 (en)
GB (1) GB1581539A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5849502Y2 (en) * 1979-10-12 1983-11-11 サンデン株式会社 Heat exchanger for frozen/refrigerated showcases
JPS593275Y2 (en) * 1979-10-12 1984-01-28 サンデン株式会社 Heat exchanger
IS1443B6 (en) * 1980-12-17 1990-12-14 Aalborg Portland A/S thurr cement mix
DE3743818C2 (en) * 1987-12-23 1995-02-23 Hoelter Heinz Process for the production of a building material resistant to water leaching and its use
FI100966B (en) * 1995-04-21 1998-03-31 Kemira Pigments Oy Process for the treatment of ferrous sulphate
CN113401938B (en) * 2021-08-04 2023-05-16 苏州市宏丰钛业有限公司 Titanium dioxide manufacturing method and system based on sulfur-iron-titanium co-production method

Also Published As

Publication number Publication date
AU2926377A (en) 1979-04-05
DE2745023A1 (en) 1978-04-20
JPS5346498A (en) 1978-04-26
GB1581539A (en) 1980-12-17
CA1084957A (en) 1980-09-02
ES462972A1 (en) 1978-06-16
AU506984B2 (en) 1980-01-31

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