EP3972936A4 - Process for purifying a sodium sulfate residue - Google Patents

Process for purifying a sodium sulfate residue Download PDF

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Publication number
EP3972936A4
EP3972936A4 EP20809363.3A EP20809363A EP3972936A4 EP 3972936 A4 EP3972936 A4 EP 3972936A4 EP 20809363 A EP20809363 A EP 20809363A EP 3972936 A4 EP3972936 A4 EP 3972936A4
Authority
EP
European Patent Office
Prior art keywords
purifying
sodium sulfate
sulfate residue
residue
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.)
Pending
Application number
EP20809363.3A
Other languages
German (de)
French (fr)
Other versions
EP3972936A1 (en
Inventor
Michael Wood
Yan Wang
Sabrina BEDEL
Claude Criado
Aiping Wang
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.)
Solvay SA
Original Assignee
Solvay SA
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 Solvay SA filed Critical Solvay SA
Publication of EP3972936A1 publication Critical patent/EP3972936A1/en
Publication of EP3972936A4 publication Critical patent/EP3972936A4/en
Pending 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
    • C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/16—Purification
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • C01P2006/82—Compositional purity water content

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)
EP20809363.3A 2019-05-22 2020-05-19 Process for purifying a sodium sulfate residue Pending EP3972936A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201920741030.6U CN212315566U (en) 2019-05-22 2019-05-22 Sodium sulfate recovery plant
PCT/CN2020/090982 WO2020233558A1 (en) 2019-05-22 2020-05-19 Process for purifying a sodium sulfate residue

Publications (2)

Publication Number Publication Date
EP3972936A1 EP3972936A1 (en) 2022-03-30
EP3972936A4 true EP3972936A4 (en) 2023-07-12

Family

ID=73459154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20809363.3A Pending EP3972936A4 (en) 2019-05-22 2020-05-19 Process for purifying a sodium sulfate residue

Country Status (4)

Country Link
EP (1) EP3972936A4 (en)
KR (1) KR20220034732A (en)
CN (3) CN212315566U (en)
WO (1) WO2020233558A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113526530B (en) * 2021-08-10 2023-08-01 上海言征分离技术有限公司 Preparation system and method of large-particle anhydrous sodium sulfate as byproduct of nitrate-containing brine
CN114261978A (en) * 2021-12-22 2022-04-01 四川省洪雅青衣江元明粉有限公司 Efficient purification method of saltpeter water
CN115350500B (en) * 2022-08-23 2023-10-13 宁夏日盛高新产业股份有限公司 Byproduct comprehensive utilization system in foaming agent production

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1397497A (en) * 1919-03-06 1921-11-22 Internat Fuel Conservation Co Process for converting sodium sulfate to sodium sulfid
WO2001062886A1 (en) * 2000-02-23 2001-08-30 The Procter & Gamble Company Detergent tablet
KR100582801B1 (en) * 2003-10-13 2006-05-23 요업기술원 Refining method of high purified sodium sulfate from wasted sodium sulfate arising from electric precipitator
US20130072371A1 (en) * 2011-03-17 2013-03-21 Ppg Industries Ohio, Inc. Method of, and apparatus for, using a glass fluxing agent to reduce foam during melting of glass batch
US8658122B2 (en) * 2007-12-14 2014-02-25 Servicios Administrativas Penoles S.A. de C.V. Process to produce sodium sulfate and magnesium hydroxide

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2638108B1 (en) 1988-10-26 1991-02-08 Solvay PROCESS FOR REMOVING A RESIDUE COMPRISING SODIUM SULFATE
FR2740354B1 (en) * 1995-10-31 1997-11-28 Rhone Poulenc Chimie PROCESS FOR THE TREATMENT OF FUMES BASED ON SULFUR OXIDES
JP4140171B2 (en) * 2000-05-02 2008-08-27 三菱化学株式会社 Method for producing crystalline adduct of bisphenol A and phenol for the production of high quality bisphenol A
EP2403806B1 (en) * 2009-03-06 2016-09-28 Solvay Chemicals, Inc. Removal of impurities in the production of crystalline sodium carbonate, bicarbonate, or sulfite
CN103025660A (en) * 2010-05-04 2013-04-03 索尔维化学有限公司 Impurities removal from waste solids in the production of soda ash, sodium bicarbonate and/or other derivatives
CN103450287B (en) * 2013-09-24 2015-09-23 山东华义玉米科技有限公司 A kind of glucose mother liquid recycling technique
EP2871156A1 (en) * 2013-11-12 2015-05-13 Solvay SA Process for treating a sodium carbonate purge
CN104356007A (en) * 2014-10-24 2015-02-18 辽宁世星药化有限公司 Production method of p-aminophenol
CN105906126A (en) * 2016-06-12 2016-08-31 双良节能系统股份有限公司 Salt-containing wastewater resource recycling and disposal system and method
CN108658353B (en) * 2018-06-08 2021-06-18 石家庄工大科技开发有限公司 Calcium chloride wastewater treatment process

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1397497A (en) * 1919-03-06 1921-11-22 Internat Fuel Conservation Co Process for converting sodium sulfate to sodium sulfid
WO2001062886A1 (en) * 2000-02-23 2001-08-30 The Procter & Gamble Company Detergent tablet
KR100582801B1 (en) * 2003-10-13 2006-05-23 요업기술원 Refining method of high purified sodium sulfate from wasted sodium sulfate arising from electric precipitator
US8658122B2 (en) * 2007-12-14 2014-02-25 Servicios Administrativas Penoles S.A. de C.V. Process to produce sodium sulfate and magnesium hydroxide
US20130072371A1 (en) * 2011-03-17 2013-03-21 Ppg Industries Ohio, Inc. Method of, and apparatus for, using a glass fluxing agent to reduce foam during melting of glass batch

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MOULAY S ET AL: "ALGERIAN MONTMORILLONITE AS A BUILDER IN A DETERGENT POWDER", JOURNAL SURFACTDETERG,, vol. 6, no. 2, 1 April 2003 (2003-04-01), pages 113 - 118, XP001164060, ISSN: 1097-3958, DOI: 10.1007/S11743-003-0253-6 *
See also references of WO2020233558A1 *

Also Published As

Publication number Publication date
CN212315566U (en) 2021-01-08
CN113874322A (en) 2021-12-31
KR20220034732A (en) 2022-03-18
CN113874322B (en) 2024-03-22
WO2020233558A1 (en) 2020-11-26
CN117326574A (en) 2024-01-02
EP3972936A1 (en) 2022-03-30

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