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WO2015023252A3 - Potash processing with mechanical vapor recompression - Google Patents

Potash processing with mechanical vapor recompression Download PDF

Info

Publication number
WO2015023252A3
WO2015023252A3 PCT/US2013/054554 US2013054554W WO2015023252A3 WO 2015023252 A3 WO2015023252 A3 WO 2015023252A3 US 2013054554 W US2013054554 W US 2013054554W WO 2015023252 A3 WO2015023252 A3 WO 2015023252A3
Authority
WO
WIPO (PCT)
Prior art keywords
potash
brine
water
salt
vapor
Prior art date
Application number
PCT/US2013/054554
Other languages
French (fr)
Other versions
WO2015023252A2 (en
Inventor
J. Clair Batty
Brett Boissevain
Original Assignee
Utah State University
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 Utah State University filed Critical Utah State University
Priority to PCT/US2013/054554 priority Critical patent/WO2015023252A2/en
Publication of WO2015023252A2 publication Critical patent/WO2015023252A2/en
Publication of WO2015023252A3 publication Critical patent/WO2015023252A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/04—Chlorides
    • C01D3/06—Preparation by working up brines; seawater or spent lyes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

A potash-extraction system and method for extracting potash from a brine containing potash without the use of water-consuming evaporation ponds or additional chemicals is disclosed. The potash processing system uses a mechanical-vapor recompression (MVR) cycle to separate salt and then potash from a sylvinite brine containing salt and potash. In embodiments, the latent heat recovered from condensing vapor may be used to boil the brine to precipitate some salt and remove some water (in the form of water vapor) from the brine. The remaining potash-concentrated brine may then be cooled to precipitate potash from the solution. The precipitated potash may then be further processed for final use.
PCT/US2013/054554 2013-08-12 2013-08-12 Potash processing with mechanical vapor recompression WO2015023252A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US2013/054554 WO2015023252A2 (en) 2013-08-12 2013-08-12 Potash processing with mechanical vapor recompression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2013/054554 WO2015023252A2 (en) 2013-08-12 2013-08-12 Potash processing with mechanical vapor recompression

Publications (2)

Publication Number Publication Date
WO2015023252A2 WO2015023252A2 (en) 2015-02-19
WO2015023252A3 true WO2015023252A3 (en) 2015-07-23

Family

ID=52468763

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2013/054554 WO2015023252A2 (en) 2013-08-12 2013-08-12 Potash processing with mechanical vapor recompression

Country Status (1)

Country Link
WO (1) WO2015023252A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107510949A (en) * 2017-09-26 2017-12-26 深圳市蓝石环保科技有限公司 A kind of MVR vapo(u)rization systems

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2161800A (en) * 1937-04-10 1939-06-13 Cross Roy Mining potash
US2331890A (en) * 1941-07-05 1943-10-19 Kansas City Testing Lab Mining and recovery of potash compounds
US2665124A (en) * 1948-07-10 1954-01-05 Kansas City Testing Lab Method of winning potassium chloride from underground deposits
US2788257A (en) * 1954-11-19 1957-04-09 Minerals & Chemicals Corp Crystallization process for recovering sylvite from sylvinite ore
US3402025A (en) * 1964-10-14 1968-09-17 Kerr Mc Gee Oil Ind Inc Potassium chloride recovery from potash ores using submerged combustion heating
US4210421A (en) * 1978-11-13 1980-07-01 Ppg Industries, Inc. Method for reducing kcl tailings loss from evaporation
US20110123420A1 (en) * 2009-11-23 2011-05-26 Karnalyte Resources Inc. Process for the formulation of potassium chloride from a carnallite source
US20130149231A1 (en) * 2011-02-18 2013-06-13 Vale S.A. Process for obtaining potassium chloride
US20130186741A1 (en) * 2009-01-14 2013-07-25 Purestream Services, Llc Controlled-gradient, accelerated-vapor-recompression apparatus and method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2161800A (en) * 1937-04-10 1939-06-13 Cross Roy Mining potash
US2331890A (en) * 1941-07-05 1943-10-19 Kansas City Testing Lab Mining and recovery of potash compounds
US2665124A (en) * 1948-07-10 1954-01-05 Kansas City Testing Lab Method of winning potassium chloride from underground deposits
US2788257A (en) * 1954-11-19 1957-04-09 Minerals & Chemicals Corp Crystallization process for recovering sylvite from sylvinite ore
US3402025A (en) * 1964-10-14 1968-09-17 Kerr Mc Gee Oil Ind Inc Potassium chloride recovery from potash ores using submerged combustion heating
US4210421A (en) * 1978-11-13 1980-07-01 Ppg Industries, Inc. Method for reducing kcl tailings loss from evaporation
US20130186741A1 (en) * 2009-01-14 2013-07-25 Purestream Services, Llc Controlled-gradient, accelerated-vapor-recompression apparatus and method
US20110123420A1 (en) * 2009-11-23 2011-05-26 Karnalyte Resources Inc. Process for the formulation of potassium chloride from a carnallite source
US20130149231A1 (en) * 2011-02-18 2013-06-13 Vale S.A. Process for obtaining potassium chloride

Also Published As

Publication number Publication date
WO2015023252A2 (en) 2015-02-19

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