GB349823A - Process for working up sylvinitic crude salts to a mixture of potassium nitrate and sodium nitrate or this mixture and soda - Google Patents

Process for working up sylvinitic crude salts to a mixture of potassium nitrate and sodium nitrate or this mixture and soda

Info

Publication number
GB349823A
GB349823A GB21020/30A GB2102030A GB349823A GB 349823 A GB349823 A GB 349823A GB 21020/30 A GB21020/30 A GB 21020/30A GB 2102030 A GB2102030 A GB 2102030A GB 349823 A GB349823 A GB 349823A
Authority
GB
United Kingdom
Prior art keywords
potassium
ammonium chloride
mixture
chloride
sylvinite
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
GB21020/30A
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.)
CHEMIEVERFAHREN GES MIT BESCHR
Original Assignee
CHEMIEVERFAHREN GES MIT BESCHR
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 CHEMIEVERFAHREN GES MIT BESCHR filed Critical CHEMIEVERFAHREN GES MIT BESCHR
Publication of GB349823A publication Critical patent/GB349823A/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
    • C01D9/04—Preparation with liquid nitric acid

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)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

A cyclic process for the production of a mixture of potassium and sodium nitrates from sylvinite, in which ammonium chloride or ammonium chloride and soda are obtained as bye-products comprises the following steps: (1) The potassium content of sylvinite is adjusted by addition of potassium chloride so that its potassium-sodium ratio is the same as that in glaserite (3K2SO4.Na2SO4) and the mixture is reacted with ammonia and an ammonium chloride solution containing ammonium sulphate obtained in step (2) to form a precipitate of glaserite, which, after separation from the mother liquor, is treated with calcium carbonate and nitric acid, whereby a precipitate of gypsum containing double sulphates of potassium and calcium such as syngenite or potassium calcium pentosulphate is formed, together with a solution of potassium and sodium nitrates, which is evaporated to dryness; (2) The glaserite mother liquor is cooled to separate out part of its ammonium chloride and then treated with carbonic acid to form ammonium carbonate or bicarbonate which is reacted with the gypsum obtained in step (1) to produce a mixture of ammonium sulphate, ammonium chloride, and calcium carbonate which is used preferably without separation of the calcium carbonate to treat further quantities of sylvinite. Alternatively, sylvinite may be used in step (1) without addition of potassium chloride, in which case the glaserite mother liquor contains sodium chloride in addition to ammonium chloride and ammonia. Step (2) is modified by subjecting the liquor, after separation of part of its ammonium chloride by cooling, to the Solway process to form soda and the mother liquor therefrom, containing ammonium chloride and carbonate, is then treated with gypsum as before. Specification 347,935 is referred to.
GB21020/30A 1929-08-23 1930-07-11 Process for working up sylvinitic crude salts to a mixture of potassium nitrate and sodium nitrate or this mixture and soda Expired GB349823A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE349823X 1929-08-23

Publications (1)

Publication Number Publication Date
GB349823A true GB349823A (en) 1931-06-04

Family

ID=6258971

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21020/30A Expired GB349823A (en) 1929-08-23 1930-07-11 Process for working up sylvinitic crude salts to a mixture of potassium nitrate and sodium nitrate or this mixture and soda

Country Status (1)

Country Link
GB (1) GB349823A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246019A (en) * 1979-02-21 1981-01-20 Sokolov Igor D Method of producing a complex mineral fertilizer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246019A (en) * 1979-02-21 1981-01-20 Sokolov Igor D Method of producing a complex mineral fertilizer

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