EP3972936A4 - METHOD FOR PURIFYING A SODIUM SULPHATE RESIDUE - Google Patents

METHOD FOR PURIFYING A SODIUM SULPHATE 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)
English (en)
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 METHOD FOR PURIFYING A SODIUM SULPHATE RESIDUE Pending EP3972936A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201920741030.6U CN212315566U (zh) 2019-05-22 2019-05-22 硫酸钠回收设备
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 METHOD FOR PURIFYING A SODIUM SULPHATE RESIDUE

Country Status (4)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113526530B (zh) * 2021-08-10 2023-08-01 上海言征分离技术有限公司 一种含硝卤水副产大颗粒元明粉的制备系统及方法
CN114261978A (zh) * 2021-12-22 2022-04-01 四川省洪雅青衣江元明粉有限公司 一种硝水的高效净化方法
CN115350500B (zh) * 2022-08-23 2023-10-13 宁夏日盛高新产业股份有限公司 一种发泡剂生产中副产物综合利用系统

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 (ko) * 2003-10-13 2006-05-23 요업기술원 전기집진장치에서 발생되는 폐 황산나트륨에서 고순도황산나트륨을 분리정제하는 방법
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 (fr) 1988-10-26 1991-02-08 Solvay Procede pour eliminer un residu comprenant du sulfate de sodium
FR2740354B1 (fr) 1995-10-31 1997-11-28 Rhone Poulenc Chimie Procede de traitement de fumees a base d'oxydes de soufre
JP4140171B2 (ja) * 2000-05-02 2008-08-27 三菱化学株式会社 高品位ビスフェノールａ製造のためのビスフェノールａとフェノールとの結晶アダクトの製造方法
US8337571B2 (en) * 2009-03-06 2012-12-25 Solvay Chemicals, Inc. Removal of impurities in the production of crystalline sodium carbonate, bicarbonate, or sulfite
ES2503571T3 (es) * 2010-05-04 2014-10-07 Solvay Chemicals, Inc. Retirada de impurezas de sólidos de desecho en la producción de ceniza de sosa, bicarbonato de sodio y/u otros derivados
CN103450287B (zh) * 2013-09-24 2015-09-23 山东华义玉米科技有限公司 一种葡萄糖母液再利用工艺
EP2871156A1 (en) * 2013-11-12 2015-05-13 Solvay SA Process for treating a sodium carbonate purge
CN104356007A (zh) * 2014-10-24 2015-02-18 辽宁世星药化有限公司 对氨基苯酚的生产方法
CN105906126A (zh) * 2016-06-12 2016-08-31 双良节能系统股份有限公司 一种含盐废水资源化回收处理系统及方法
CN108658353B (zh) * 2018-06-08 2021-06-18 石家庄工大科技开发有限公司 一种氯化钙废水处理工艺

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 (ko) * 2003-10-13 2006-05-23 요업기술원 전기집진장치에서 발생되는 폐 황산나트륨에서 고순도황산나트륨을 분리정제하는 방법
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
CN113874322B (zh) 2024-03-22
WO2020233558A1 (en) 2020-11-26
EP3972936A1 (en) 2022-03-30
CN113874322A (zh) 2021-12-31
KR20220034732A (ko) 2022-03-18
CN117326574A (zh) 2024-01-02
CN212315566U (zh) 2021-01-08

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