GB188634A - Methods and processes for the leaching of caliche and for the recovery of nitrate therefrom - Google Patents

Methods and processes for the leaching of caliche and for the recovery of nitrate therefrom

Info

Publication number
GB188634A
GB188634A GB18460/22A GB1846022A GB188634A GB 188634 A GB188634 A GB 188634A GB 18460/22 A GB18460/22 A GB 18460/22A GB 1846022 A GB1846022 A GB 1846022A GB 188634 A GB188634 A GB 188634A
Authority
GB
United Kingdom
Prior art keywords
sulphate
caliche
sodium sulphate
sodium
calcium
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
GB18460/22A
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.)
Guggenheim Brothers
Original Assignee
Guggenheim Brothers
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 Guggenheim Brothers filed Critical Guggenheim Brothers
Publication of GB188634A publication Critical patent/GB188634A/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
    • C01D9/02—Preparation by working-up natural salt mixtures

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

In the extraction of sodium nitrate from caliche the reduction of yield consequent on the formation of the double salt sodium nitrate-sodium sulphate is avoided by maintaining the presence of reagents having a greater affinity for sodium sulphate than has sodium nitrate, the leaching being effected at or below 58 DEG C. and the cooling being effected by refrigeration. The reagents mentioned are potassium, magnesium, and calcium compounds, particularly magnesium sulphate, calcium sulphate, syngenite (calcium potassium sulphate) and astrakanite (magnesium sodium sulphate). Sometimes caliche contains glauberite (calcium sodium sulphate) or other impurities having similar effect, and in that case caliches not containing such compounds may be mixed with a caliche containing such compounds. In any case, the leaching is so conducted that these advantageous compounds, whether originally present or added, are not removed during the process. One effect of this process is that the sodium sulphate remains behind with the slimes, rendering the slimes readily filterable. Cooling to separate the nitrate is carried to 7 DEG C. or such lower temperature, occasioned by the impurities present, as may be possible without causing crystallization of sodium sulphate. Substances which are stated to allow of such lower temperatures are particularly potassium and magnesium salts, iodates and borates. Specification 2233/86 is referred to.
GB18460/22A 1921-11-07 1922-07-05 Methods and processes for the leaching of caliche and for the recovery of nitrate therefrom Expired GB188634A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US188634XA 1921-11-07 1921-11-07

Publications (1)

Publication Number Publication Date
GB188634A true GB188634A (en) 1923-12-05

Family

ID=21790151

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18460/22A Expired GB188634A (en) 1921-11-07 1922-07-05 Methods and processes for the leaching of caliche and for the recovery of nitrate therefrom

Country Status (1)

Country Link
GB (1) GB188634A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103771460A (en) * 2013-03-22 2014-05-07 新疆安华矿业投资有限公司 Method for preparing potassium mixed salt mine by using nitrate contained magnesium sulphate subtype bittern and potassium nitrate production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103771460A (en) * 2013-03-22 2014-05-07 新疆安华矿业投资有限公司 Method for preparing potassium mixed salt mine by using nitrate contained magnesium sulphate subtype bittern and potassium nitrate production
CN103771460B (en) * 2013-03-22 2015-03-11 新疆安华矿业投资有限公司 Method for preparing potassium mixed salt mine by using nitrate contained magnesium sulphate subtype bittern and potassium nitrate production

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