GB1250317A - - Google Patents

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Publication number
GB1250317A
GB1250317A GB1250317DA GB1250317A GB 1250317 A GB1250317 A GB 1250317A GB 1250317D A GB1250317D A GB 1250317DA GB 1250317 A GB1250317 A GB 1250317A
Authority
GB
United Kingdom
Prior art keywords
sulphate
ferrous
sulphates
mixture
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.)
Expired
Application number
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 filed Critical
Publication of GB1250317A publication Critical patent/GB1250317A/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/14—Sulfates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,250,317. Sulphates. GOSUDARSTVENNY NAUCHNO - ISSLEDOVATELSKY I PROEKTNY INSTITUT OSNOVNOI KHIMII. 10 Oct., 1968, No. 48033/68. Heading C1A. In a process for the recovery of a sulphate salt from a solid or pasty raw material comprising said sulphate salt contaminated with free sulphuric acid, the acid in the said raw material is caused to react with ferrous sulphate whilst a gas containing free oxygen is fed into the reaction mixture and the mixture is maintained at a temperature from 150‹ to 300‹ C. The process is applicable to a plastic mass of ferrous sulphate, free sulphuric acid, TiO 2 , manganese sulphate and MgO, obtained by the submerged flame evaporation of the solution produced in the hydrolysis of titanium sulphates. It may be carried out in a fluidized bed, with recycle of some of the ferrous sulphate product. In examples the product is a mixture of ferrous and ferric sulphates.
GB1250317D 1968-10-10 1968-10-10 Expired GB1250317A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4803368 1968-10-10

Publications (1)

Publication Number Publication Date
GB1250317A true GB1250317A (en) 1971-10-20

Family

ID=10447123

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1250317D Expired GB1250317A (en) 1968-10-10 1968-10-10

Country Status (1)

Country Link
GB (1) GB1250317A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125020A (en) * 1982-07-24 1984-02-29 Tioxide Group Plc Oxidation of ferrous sulphate to ferric sulphate
FR2865727A1 (en) * 2004-02-04 2005-08-05 Holcim Improving the flow of moist ferrous sulfate heptahydrate, e.g. useful for reducing hexavalent chromium in cement, comprises adding flyash or fumed silica
FR2865726A1 (en) * 2004-02-04 2005-08-05 Holcim Improving the flow of moist ferrous sulfate heptahydrate, e.g. useful for reducing hexavalent chromium in cement, comprises adding a powdered magnesium salt
CN103318975A (en) * 2013-07-10 2013-09-25 四川大学 Recycling method of waste residue and waste sulfuric acid of titanium dioxide produced by sulfuric acid method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125020A (en) * 1982-07-24 1984-02-29 Tioxide Group Plc Oxidation of ferrous sulphate to ferric sulphate
FR2865727A1 (en) * 2004-02-04 2005-08-05 Holcim Improving the flow of moist ferrous sulfate heptahydrate, e.g. useful for reducing hexavalent chromium in cement, comprises adding flyash or fumed silica
FR2865726A1 (en) * 2004-02-04 2005-08-05 Holcim Improving the flow of moist ferrous sulfate heptahydrate, e.g. useful for reducing hexavalent chromium in cement, comprises adding a powdered magnesium salt
EP1588985A1 (en) * 2004-02-04 2005-10-26 HOLCIM (Belgique) Process for the fluidization of ferrous sulfate using silica-based products
EP1609761A1 (en) * 2004-02-04 2005-12-28 HOLCIM (Belgique) Process for the fluidization of iron sulfates using magnesium salts
CN103318975A (en) * 2013-07-10 2013-09-25 四川大学 Recycling method of waste residue and waste sulfuric acid of titanium dioxide produced by sulfuric acid method

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees