GB1288972A - - Google Patents

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Publication number
GB1288972A
GB1288972A GB1288972DA GB1288972A GB 1288972 A GB1288972 A GB 1288972A GB 1288972D A GB1288972D A GB 1288972DA GB 1288972 A GB1288972 A GB 1288972A
Authority
GB
United Kingdom
Prior art keywords
graphite
alkali metal
lined
product
monofluorophosphate
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 GB1288972A publication Critical patent/GB1288972A/en
Expired legal-status Critical Current

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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
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/455—Phosphates containing halogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

1288972 Alkali metal monofluorophosphate D C EVANS (Ozark Mahaning Co) 9 Sept 1969 44490/69 Heading C1A A continuous process for the manufacture of alkali metal monofluorophosphate (e.g. NaPO 3 F) comprises heating an intimate mixture of finely divided alkali metal fluoride, and alkali metal metaphosphate in a graphite lined reactor under conditions such that a layer of solid reactants is maintained over the molten reaction mass and the molten product is cooled by exposure to the atmosphere. The reactants are brought together in stoichiometric quantities and heated to a temperature above that required for fusion of the reaction mix. An apparatus is described which consists of a horizontal cylindrical metal body lined with graphite, with two graphite-lined inlet pipes attached to the upper side of the body. A silver outlet conduit is. attached to one end of the body which discharges the product into a graphite lined tray over which air is blown to cool the product. Reference is made to a rotary drum cooler or prilling tower as alternative means of cooling. An example describes the manufacture of sodium monofluorophosphate, and lithium and potassium monofluorophosphates are referred to.
GB1288972D 1969-09-09 1969-09-09 Expired GB1288972A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4449069 1969-09-09

Publications (1)

Publication Number Publication Date
GB1288972A true GB1288972A (en) 1972-09-13

Family

ID=10433562

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1288972D Expired GB1288972A (en) 1969-09-09 1969-09-09

Country Status (1)

Country Link
GB (1) GB1288972A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5393506A (en) * 1990-12-24 1995-02-28 Kali-Chemie Aktiengesellschaft Method for the manufacturing of alkali monofluorophosphate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5393506A (en) * 1990-12-24 1995-02-28 Kali-Chemie Aktiengesellschaft Method for the manufacturing of alkali monofluorophosphate

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Legal Events

Date Code Title Description
49R Reference inserted (sect. 9/1949)
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees