GB1309086A - Process for decolourising crude fluorosilicic acid and its salts - Google Patents

Process for decolourising crude fluorosilicic acid and its salts

Info

Publication number
GB1309086A
GB1309086A GB1309086DA GB1309086A GB 1309086 A GB1309086 A GB 1309086A GB 1309086D A GB1309086D A GB 1309086DA GB 1309086 A GB1309086 A GB 1309086A
Authority
GB
United Kingdom
Prior art keywords
fluorosilicic acid
acid
solution
salts
decolourising
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
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.)
Fisons Ltd
Original Assignee
Fisons 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 Fisons Ltd filed Critical Fisons Ltd
Publication of GB1309086A publication Critical patent/GB1309086A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/08—Compounds containing halogen
    • C01B33/10—Compounds containing silicon, fluorine, and other elements
    • C01B33/103—Fluosilicic acid; Salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)

Abstract

1309086 Fluorosilicic acid and fluorosilicates FISONS Ltd 23 Oct 1970 [15 Nov 1969] 56039/69 Heading C1A Fluorosilicic acid or water-soluble salts of fluorosilicic acid (e.g. the Mg, Zn or NH 4 salt) are decolorized by treating an aqueous solution of the acid or salt with an oxidizing agent having a standard oxidation potential of less than - 0À53 volts, e.g. sodium hypochlorite, ferric chloride, potassium iodate, potassium permanganate or hydrogen peroxide which removes iodide anions and then treating the solution to remove free iodine, e.g. by passing the solution through a column of active carbon, solvent extraction, volatilization or precipitation as an insoluble iodide.
GB1309086D 1969-11-15 1969-11-15 Process for decolourising crude fluorosilicic acid and its salts Expired GB1309086A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5603969 1969-11-15

Publications (1)

Publication Number Publication Date
GB1309086A true GB1309086A (en) 1973-03-07

Family

ID=10475572

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1309086D Expired GB1309086A (en) 1969-11-15 1969-11-15 Process for decolourising crude fluorosilicic acid and its salts

Country Status (1)

Country Link
GB (1) GB1309086A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265612A (en) * 1992-03-30 1993-10-06 Chemifloc Tech Ltd A method for stabilising a fluosilicic acid solution
CN103345954A (en) * 2013-06-20 2013-10-09 哈尔滨工业大学 Water treatment method of removing radioactive iodine pollutants by using permanganate and activated carbon together
CN111017930A (en) * 2019-12-31 2020-04-17 贵州瓮福蓝天氟化工股份有限公司 Method for removing iodine in fluosilicic acid
CN111453735A (en) * 2020-06-08 2020-07-28 贵州瓮福蓝天氟化工股份有限公司 Method for removing iodine from fluosilicic acid

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265612A (en) * 1992-03-30 1993-10-06 Chemifloc Tech Ltd A method for stabilising a fluosilicic acid solution
CN103345954A (en) * 2013-06-20 2013-10-09 哈尔滨工业大学 Water treatment method of removing radioactive iodine pollutants by using permanganate and activated carbon together
CN103345954B (en) * 2013-06-20 2016-06-08 哈尔滨工业大学 A kind of permanganate removes the method for treating water of radioactive iodine pollution with activated carbon coupling
CN111017930A (en) * 2019-12-31 2020-04-17 贵州瓮福蓝天氟化工股份有限公司 Method for removing iodine in fluosilicic acid
CN111453735A (en) * 2020-06-08 2020-07-28 贵州瓮福蓝天氟化工股份有限公司 Method for removing iodine from fluosilicic acid

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee