SG11201900716WA - Process for producing sodium sulphate from phosphogypsum - Google Patents

Process for producing sodium sulphate from phosphogypsum

Info

Publication number
SG11201900716WA
SG11201900716WA SG11201900716WA SG11201900716WA SG11201900716WA SG 11201900716W A SG11201900716W A SG 11201900716WA SG 11201900716W A SG11201900716W A SG 11201900716WA SG 11201900716W A SG11201900716W A SG 11201900716WA SG 11201900716W A SG11201900716W A SG 11201900716WA
Authority
SG
Singapore
Prior art keywords
sodium sulphate
phosphogypsum
producing sodium
solution
permeate
Prior art date
Application number
SG11201900716WA
Inventor
Khaoula Khaless
Driss Dhiba
Original Assignee
Ocp 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 Ocp Sa filed Critical Ocp Sa
Publication of SG11201900716WA publication Critical patent/SG11201900716WA/en

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
    • C01D5/18—Dehydration
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B01D61/026—Reverse osmosis; Hyperfiltration comprising multiple reverse osmosis steps
    • 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

Abstract

PROCESS FOR PRODUCING SODIUM SULPHATE FROM PHOSPHOGYPSUM 5 The present invention relates to a process for producing sodium sulphate from phosphogypsum, comprising: - a step (101) of lixiviation of phosphogypsum by means of a basic solution so as to obtain a sodium sulphate solution (S) containing metal impurities, said basic solution comprising a chelating agent suitable for forming complexes with at least one part of 10 said metal impurities, - at least one first step (103, 104) of filtration of the sodium sulphate solution by a nanofiltration membrane (NF1, NF2), so as to form a concentrate (C1, C2) containing said complexes and a permeate (P1, P2), - a step (105) of evaporation of the permeate (P1, P2) so as to form anhydrous 15 sodium sulphate. Figure 2 20
SG11201900716WA 2016-07-27 2017-07-27 Process for producing sodium sulphate from phosphogypsum SG11201900716WA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1657235A FR3054542B1 (en) 2016-07-27 2016-07-27 PROCESS FOR PRODUCING SODIUM SULFATE FROM PHOSPHOGYPSIS
PCT/MA2017/000016 WO2018021900A2 (en) 2016-07-27 2017-07-27 Method for producing sodium sulphate from phosphogypsum

Publications (1)

Publication Number Publication Date
SG11201900716WA true SG11201900716WA (en) 2019-02-27

Family

ID=57233629

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201900716WA SG11201900716WA (en) 2016-07-27 2017-07-27 Process for producing sodium sulphate from phosphogypsum

Country Status (12)

Country Link
US (1) US10689261B2 (en)
AR (1) AR109181A1 (en)
BR (1) BR112019001579A2 (en)
FR (1) FR3054542B1 (en)
MA (1) MA44892B1 (en)
MX (1) MX2019001031A (en)
RU (1) RU2753536C2 (en)
SA (1) SA519400980B1 (en)
SG (1) SG11201900716WA (en)
TN (1) TN2019000023A1 (en)
WO (1) WO2018021900A2 (en)
ZA (1) ZA201900892B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110759361B (en) * 2018-07-25 2021-06-15 江苏省制盐工业研究所有限公司 Method for poly-generation of potassium lithium nitrate by sodium sulfate type brine or mother liquor of potassium nitrate
CN111520975A (en) * 2020-06-02 2020-08-11 湖南省湘衡盐化有限责任公司 Industrial salt drying system and method
MA51851B1 (en) 2020-11-23 2022-08-31 Mascir Morocan Foundation For Advanced Science Innovation & Res Process for obtaining ammonium sulphate and calcium oxalate from phosphogypsum

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH533572A (en) * 1969-12-23 1973-02-15 Sir Soc Italiana Resine Spa Process for the production of codic sulphate
FR2405898A1 (en) 1977-10-12 1979-05-11 Rhone Poulenc Ind PROCESS FOR PURIFYING SODIUM SULPHATE, IN PARTICULAR SODIUM SULPHATE CONTAINING TRACES OF METHIONINE, AND PRODUCT OBTAINED
DE3721667A1 (en) * 1987-06-26 1989-01-05 Mannesmann Ag Process for preparing sodium sulphate
US4966710A (en) * 1990-04-04 1990-10-30 Gte Products Corporation Method for removing magnesium and calcium from sodium sulfate solutions
FR2740354B1 (en) 1995-10-31 1997-11-28 Rhone Poulenc Chimie PROCESS FOR THE TREATMENT OF FUMES BASED ON SULFUR OXIDES
WO2006047717A2 (en) * 2004-10-25 2006-05-04 The Doe Run Resources Corporation A process for making high purity sodium sulfate
CA2721274A1 (en) * 2008-04-14 2009-10-29 Joseph Edward Zuback Sulfate removal from water sources
BRPI0918096B1 (en) * 2008-12-17 2019-05-28 Thyssenkrupp Uhde Chlorine Engineers (Italia) S.R.L. CHLORINE PRODUCTION PROCESS, ALKALINE METAL HYDROXIDE AND HYDROGEN AND COMPUTER CONTROLLED DEVICE TO CONDUCT A PROCESS
CA2868373A1 (en) * 2011-03-24 2012-09-27 New Sky Energy, Llc Sulfate-based electrolysis processing with flexible feed control, and use to capture carbon dioxide
CN102320629B (en) * 2011-10-08 2013-05-08 福建海能新材料有限公司 Method for producing reagent grade sodium sulfate by using white carbon black mother solution
CN102491452A (en) * 2011-11-18 2012-06-13 吉林吉恩镍业股份有限公司 Process for treating sodium sulfate wastewater by using nanofiltration-reverse osmosis combined membrane
CN103232052B (en) * 2013-05-20 2014-12-31 昆明理工大学 Method for preparing high-purity calcium carbonate directly from phosphogypsum
CN104211099B (en) * 2014-08-23 2017-01-25 耿兆翔 Resource recycling method of industrial phosphogypsum waste residues
FI129103B (en) * 2017-04-28 2021-07-15 Andritz Oy Method for processing fly ash of a recovery boiler
CN107902832B (en) * 2017-12-15 2023-12-19 安徽普朗膜技术有限公司 Sodium sulfate crystallization mother liquor treatment system

Also Published As

Publication number Publication date
RU2019105384A3 (en) 2020-12-16
MA44892B1 (en) 2020-11-30
FR3054542B1 (en) 2018-09-07
US20190263668A1 (en) 2019-08-29
FR3054542A1 (en) 2018-02-02
TN2019000023A1 (en) 2020-07-15
MX2019001031A (en) 2019-07-12
MA44892A1 (en) 2020-03-31
SA519400980B1 (en) 2023-01-29
WO2018021900A2 (en) 2018-02-01
ZA201900892B (en) 2022-01-26
US10689261B2 (en) 2020-06-23
BR112019001579A2 (en) 2019-05-07
RU2753536C2 (en) 2021-08-17
WO2018021900A3 (en) 2018-03-15
RU2019105384A (en) 2020-08-27
AR109181A1 (en) 2018-11-07

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