GB2427190A - Process for recovery of sulphate of potash - Google Patents
Process for recovery of sulphate of potash Download PDFInfo
- Publication number
- GB2427190A GB2427190A GB0614762A GB0614762A GB2427190A GB 2427190 A GB2427190 A GB 2427190A GB 0614762 A GB0614762 A GB 0614762A GB 0614762 A GB0614762 A GB 0614762A GB 2427190 A GB2427190 A GB 2427190A
- Authority
- GB
- United Kingdom
- Prior art keywords
- potash
- carnallite
- bittern
- recovery
- sop
- 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.)
- Granted
Links
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 5
- 229940072033 potash Drugs 0.000 title abstract 5
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 title abstract 5
- 235000015320 potassium carbonate Nutrition 0.000 title abstract 5
- 238000011084 recovery Methods 0.000 title abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title abstract 3
- 229910021653 sulphate ion Inorganic materials 0.000 title abstract 3
- 241001131796 Botaurus stellaris Species 0.000 abstract 4
- PALNZFJYSCMLBK-UHFFFAOYSA-K magnesium;potassium;trichloride;hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-].[Cl-].[K+] PALNZFJYSCMLBK-UHFFFAOYSA-K 0.000 abstract 4
- 238000006243 chemical reaction Methods 0.000 abstract 3
- GMLLYEDWRJDBIT-UHFFFAOYSA-J magnesium;dipotassium;disulfate Chemical compound [Mg+2].[K+].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GMLLYEDWRJDBIT-UHFFFAOYSA-J 0.000 abstract 3
- BMQVDVJKPMGHDO-UHFFFAOYSA-K magnesium;potassium;chloride;sulfate;trihydrate Chemical compound O.O.O.[Mg+2].[Cl-].[K+].[O-]S([O-])(=O)=O BMQVDVJKPMGHDO-UHFFFAOYSA-K 0.000 abstract 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 abstract 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 2
- 239000001110 calcium chloride Substances 0.000 abstract 2
- 235000011148 calcium chloride Nutrition 0.000 abstract 2
- 229910001628 calcium chloride Inorganic materials 0.000 abstract 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 1
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 1
- 229910052796 boron Inorganic materials 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 238000001640 fractional crystallisation Methods 0.000 abstract 1
- 229910052602 gypsum Inorganic materials 0.000 abstract 1
- 239000010440 gypsum Substances 0.000 abstract 1
- 239000004571 lime Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract 1
- 239000000347 magnesium hydroxide Substances 0.000 abstract 1
- 235000012254 magnesium hydroxide Nutrition 0.000 abstract 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 241000534414 Anotopterus nikparini Species 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
- C05D1/02—Manufacture from potassium chloride or sulfate or double or mixed salts thereof
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Fertilizers (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A novel integrated process for the recovery of sulphate of potash (SOP) from sulphate rich bittern is disclosed. The process requires only bittern and lime as raw materials. Kainite type mixed salt is obtained by fractional crystallization of the bittern. Kainite is convened to schoenite with simultaneous removal of NaCl by processing it with water and end liquor obtained from reaction of schoenite with MOP for its conversion to SOP. The end liquor from kainite to schoenite conversion (SEL) is used for the recovery of MOP. SEL is desulphated and supplemented with MgCl2using end bittern generated in the process of making carnallite. The carnallite is decomposed to get crude potash which in turn processed to get MOP. The carnallite decomposed liquor produced in the decomposition of carnallite is reacted with hydrated lime for preparing CaCl2 solution and high purity Mg(OH)2 having low boron content. The CaCl2 solution is used for desulphatation of SEL producing high purity gypsum as a byproduct. It is shown that the liquid streams containing potash are recycled in the process, the recovery of potash in the form of SOP is quantitative.
Description
GB 2427190 A continuation (72) cant Vadakke Puthoor Mohandas Sohanlal Daga
Koushik Halder Hasina Hajibhal Deraiya Ramjibhal Devjibhal Rathood Abduihamid Usmanbhal Hamdani (74) Agent and/ar Address far Service: Kilburn & Strode Red Lion Street, LONDON, WC1R 4PJ, United Kingdom
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IN2003/000463 WO2005063626A1 (en) | 2003-12-31 | 2003-12-31 | Process for recovery of sulphate of potash |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| GB0614762D0 GB0614762D0 (en) | 2006-09-06 |
| GB2427190A true GB2427190A (en) | 2006-12-20 |
| GB2427190B GB2427190B (en) | 2009-04-15 |
| GB2427190B8 GB2427190B8 (en) | 2009-07-22 |
Family
ID=34717580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0614762A Expired - Lifetime GB2427190B8 (en) | 2003-12-31 | 2003-12-31 | Process for recovery of sulphate of potash |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JP4516023B2 (en) |
| CN (1) | CN100439248C (en) |
| AU (1) | AU2003300719B2 (en) |
| BR (1) | BRPI0318666B1 (en) |
| CA (1) | CA2552104C (en) |
| GB (1) | GB2427190B8 (en) |
| IL (1) | IL176482A (en) |
| WO (1) | WO2005063626A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8182784B2 (en) | 2005-11-10 | 2012-05-22 | Council Of Scientific & Industrial Research | Process for the time recovery of sulphate of potash (SOP) from sulphate rich bittern |
| CN102503619B (en) * | 2011-09-02 | 2013-11-06 | 天津科技大学 | Method for preparing compound fertilizer from salt manufacturing mother liquor |
| CN103397201B (en) * | 2013-07-26 | 2014-12-17 | 中国科学院青海盐湖研究所 | Method for statically leaching and extracting potassium from polyhalite and preparing potassium sulphate |
| WO2016059651A1 (en) * | 2014-10-16 | 2016-04-21 | Council Of Scientific And Industrial Research | A process of production of potassium ammonium sulfate compound fertilizer in cost-effective manner directly from concentrated sea bittern |
| CN104628017A (en) * | 2015-02-13 | 2015-05-20 | 中国科学院青海盐湖研究所 | Method for preparing kainite ore from sulfate-type brine |
| US10399861B2 (en) * | 2015-05-08 | 2019-09-03 | Yara Dallol Bv | Methods for the production of potassium sulphate from potassium-containing ores at high ambient temperatures |
| CN109415218A (en) | 2016-06-24 | 2019-03-01 | 雅拉达洛尔有限公司 | The method that rock salt is reduced in potassium sulfate is prepared from phosphate-containing ore at a high ambient temperature |
| CN107285283B (en) * | 2017-06-01 | 2019-10-15 | 中国中轻国际工程有限公司 | A kind of akali sulphide black liquor, liquid caustic soda coproduction sodium bicarbonate, sodium chromate, akali sulphide technique |
| WO2019071349A1 (en) | 2017-10-13 | 2019-04-18 | Novopro Projects Inc. | Systems and methods of producing potassium sulfate |
| CN107673372B (en) * | 2017-11-15 | 2023-09-08 | 河北工业大学 | Large-scale potassium-rich method and device based on coupling technology |
| CN114560480A (en) * | 2022-03-01 | 2022-05-31 | 天津长芦海晶集团有限公司 | Multi-element extraction method of bittern after desulfurization by calcium method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3634041A (en) * | 1969-02-14 | 1972-01-11 | Great Salt Lake Minerals | Method for the production of potassium sulfate from potassium-containing double salts of magnesium sulfate |
| CN1084492A (en) * | 1992-09-12 | 1994-03-30 | 国家海洋局天津海水淡化与综合利用研究所 | Bittern and Repone K prepare the method for vitriolate of tartar |
| CN1188076A (en) * | 1997-04-10 | 1998-07-22 | 中国石油天然气总公司工程技术研究院 | Bittern comprehensive utilization method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL50873A (en) * | 1976-11-09 | 1979-11-30 | Sadan A | Process for the production of potassium chloride and magnesium chloride from carnallite |
| CN1027883C (en) * | 1993-05-14 | 1995-03-15 | 中国石油天然气总公司工程技术研究所 | Pren. method of potassium sulfate from bittern and potassium chloride |
| CN1130152A (en) * | 1995-04-26 | 1996-09-04 | 国家海洋局天津海水淡化与综合利用研究所 | Process for producing potassium sulfate from bittern and potassium chloride |
| CN1128760C (en) * | 2000-08-29 | 2003-11-26 | 化学工业部连云港设计研究院 | Method for preparing potassium sulfate by using sulfate type potassium-containing bittern |
| CN1171794C (en) * | 2001-05-24 | 2004-10-20 | 化学工业部连云港设计研究院 | Preparation method of potassium sulfate with sulfate-type salt lake bittern containing potassium salt |
| WO2003035550A1 (en) * | 2001-10-22 | 2003-05-01 | Council Of Scientific And Industrial Research | Recovery of sodium chloride and other salts from brine |
| AU2003300706B2 (en) * | 2003-12-31 | 2007-08-16 | Council Of Scientific And Industrial Research | Simultaneous recovery of potassium chloride and KCl enriched edible salt |
-
2003
- 2003-12-31 GB GB0614762A patent/GB2427190B8/en not_active Expired - Lifetime
- 2003-12-31 BR BRPI0318666A patent/BRPI0318666B1/en active IP Right Grant
- 2003-12-31 CA CA002552104A patent/CA2552104C/en not_active Expired - Lifetime
- 2003-12-31 CN CNB2003801109302A patent/CN100439248C/en not_active Expired - Lifetime
- 2003-12-31 JP JP2005512762A patent/JP4516023B2/en not_active Expired - Lifetime
- 2003-12-31 AU AU2003300719A patent/AU2003300719B2/en not_active Expired
- 2003-12-31 WO PCT/IN2003/000463 patent/WO2005063626A1/en active Application Filing
-
2006
- 2006-06-21 IL IL176482A patent/IL176482A/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3634041A (en) * | 1969-02-14 | 1972-01-11 | Great Salt Lake Minerals | Method for the production of potassium sulfate from potassium-containing double salts of magnesium sulfate |
| CN1084492A (en) * | 1992-09-12 | 1994-03-30 | 国家海洋局天津海水淡化与综合利用研究所 | Bittern and Repone K prepare the method for vitriolate of tartar |
| CN1188076A (en) * | 1997-04-10 | 1998-07-22 | 中国石油天然气总公司工程技术研究院 | Bittern comprehensive utilization method |
Non-Patent Citations (2)
| Title |
|---|
| Mehta, D.J. (1965) Production of potassium sulphate from mixed salt obtained from salt works of Little Rann of Kutch. Salt Research and Industry, 2(4), 139-140. * |
| Niu, Z et al. Manufacture of potassium sulfate and other inorganic materials from bittern brine. Dastabase CA, vol. 24 (4), 18-20 * |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0318666B1 (en) | 2015-12-15 |
| AU2003300719A1 (en) | 2005-07-21 |
| AU2003300719B2 (en) | 2008-06-12 |
| IL176482A0 (en) | 2006-10-05 |
| GB0614762D0 (en) | 2006-09-06 |
| JP4516023B2 (en) | 2010-08-04 |
| BR0318666A (en) | 2006-11-28 |
| GB2427190B (en) | 2009-04-15 |
| WO2005063626A1 (en) | 2005-07-14 |
| CA2552104A1 (en) | 2005-07-14 |
| CA2552104C (en) | 2009-11-24 |
| CN100439248C (en) | 2008-12-03 |
| IL176482A (en) | 2012-06-28 |
| GB2427190B8 (en) | 2009-07-22 |
| JP2007528333A (en) | 2007-10-11 |
| CN1886339A (en) | 2006-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PE20 | Patent expired after termination of 20 years |
Expiry date: 20231230 |