GB478174A - Improved process for the preparation of potassium nitrate - Google Patents

Improved process for the preparation of potassium nitrate

Info

Publication number
GB478174A
GB478174A GB15557/37A GB1555737A GB478174A GB 478174 A GB478174 A GB 478174A GB 15557/37 A GB15557/37 A GB 15557/37A GB 1555737 A GB1555737 A GB 1555737A GB 478174 A GB478174 A GB 478174A
Authority
GB
United Kingdom
Prior art keywords
nitrate
potassium
mixture
mother liquor
sodium
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
GB15557/37A
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.)
POUR LA FABRICATION ET L EMPLO
Original Assignee
POUR LA FABRICATION ET L EMPLO
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 POUR LA FABRICATION ET L EMPLO filed Critical POUR LA FABRICATION ET L EMPLO
Publication of GB478174A publication Critical patent/GB478174A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D9/00—Nitrates of sodium, potassium or alkali metals in general
    • C01D9/08—Preparation by double decomposition
    • C01D9/14—Preparation by double decomposition of salts of potassium with sodium nitrate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

The sodium nitrate in a mixture of sodium and potassium nitrates containing also ammonium nitrate and ammonium chloride is converted to potassium nitrate and the latter recovered by the following sequence of operations. The nitrate mixture is placed in a mother liquor from a preceding operation, potassium chloride or sylvinite added, and the whole heated say to 80 DEG C. Sodium chloride precipitates and is separated, and after dilution the liquor is cooled to crystallize potassium nitrate which is separated. A part of the mother liquor returns to the first operation. The nitrate mixture may be obtained by reacting ammonium nitrate with sylvinite, in which case the mother liquor not used as above described is utilized in this reaction. An example is given.
GB15557/37A 1936-06-08 1937-06-04 Improved process for the preparation of potassium nitrate Expired GB478174A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR478174X 1936-06-08

Publications (1)

Publication Number Publication Date
GB478174A true GB478174A (en) 1938-01-13

Family

ID=8903238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15557/37A Expired GB478174A (en) 1936-06-08 1937-06-04 Improved process for the preparation of potassium nitrate

Country Status (1)

Country Link
GB (1) GB478174A (en)

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