CA2041914A1 - Procede de recuperation de sulfates - Google Patents

Procede de recuperation de sulfates

Info

Publication number: CA2041914A1
Authority: CA; Canada
Prior art keywords: sulphate; compound; chromium component; recovery; liquor
Prior art date: 1990-07-16
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

Application number

CA2041914A

Other languages

English (en)

Other versions

CA2041914C (fr

Inventor

Raymond E. Alford

Felix M. Mok

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.)

Aker Solutions Canada Inc

Original Assignee

Chemetics International Co Ltd

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.)

1990-07-16

Filing date

1991-05-07

Publication date

1992-01-17

1991-05-07 Application filed by Chemetics International Co Ltd filed Critical Chemetics International Co Ltd

1992-01-17 Publication of CA2041914A1 publication Critical patent/CA2041914A1/fr

1997-12-30 Application granted granted Critical

1997-12-30 Publication of CA2041914C publication Critical patent/CA2041914C/fr

2011-05-07 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

229910021653 sulphate ion Inorganic materials 0.000 title abstract 7
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title abstract 5
238000000034 method Methods 0.000 title abstract 4
238000011084 recovery Methods 0.000 title 1
XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 abstract 2
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 2
229910052804 chromium Inorganic materials 0.000 abstract 2
239000011651 chromium Substances 0.000 abstract 2
-1 sulphate compound Chemical class 0.000 abstract 2
238000001816 cooling Methods 0.000 abstract 1
238000002425 crystallisation Methods 0.000 abstract 1
230000008025 crystallization Effects 0.000 abstract 1
SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 abstract 1
238000004519 manufacturing process Methods 0.000 abstract 1
238000000926 separation method Methods 0.000 abstract 1

Classifications

- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
- C25B1/265—Chlorates
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/12—Chloric acid
- C01B11/14—Chlorates
- 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
- C01D3/14—Purification
- C01D3/16—Purification by precipitation or adsorption

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Chemical Kinetics & Catalysis (AREA)
Electrochemistry (AREA)
Metallurgy (AREA)
Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Inorganic Compounds Of Heavy Metals (AREA)
Removal Of Specific Substances (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

CA002041914A 1990-07-16 1991-05-07 Procede de recuperation de sulfates Expired - Lifetime CA2041914C (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US552,620		1990-07-16
US07/552,620 US5093089A (en)	1990-07-16	1990-07-16	Process for the separation of sulphate

Publications (2)

Publication Number	Publication Date
CA2041914A1 true CA2041914A1 (fr)	1992-01-17
CA2041914C CA2041914C (fr)	1997-12-30

Family

ID=24206091

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002041914A Expired - Lifetime CA2041914C (fr)	1990-07-16	1991-05-07	Procede de recuperation de sulfates

Country Status (11)

Country	Link
US (1)	US5093089A (fr)
JP (1)	JPH0624739A (fr)
CN (1)	CN1050866C (fr)
AU (1)	AU630031B2 (fr)
CA (1)	CA2041914C (fr)
ES (1)	ES2033580B1 (fr)
FI (1)	FI101530B (fr)
NZ (1)	NZ238887A (fr)
PT (1)	PT98318B (fr)
SE (1)	SE506783C2 (fr)
ZA (1)	ZA915393B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CA2100948C (fr) *	1992-04-22	1995-01-24	John Robert Jackson	Procede pour l'elimination du chrome, utilisant un compose de soufre
SE500107C2 (sv) *	1991-06-26	1994-04-18	Eka Nobel Ab	Förfarande för framställning av klordioxid
US5520902A (en) *	1994-11-25	1996-05-28	Occidental Chemical Corporation	Process for making chromium-free orthorhombic sodium sulfate
JP4012058B2 (ja)	2001-12-21	2007-11-21	キヤノン株式会社	リサイクル性重合体、その製造方法、ならびにリサイクル処理方法
EP1759749A1 (fr) *	2005-08-30	2007-03-07	F.Hoffmann-La Roche Ag	Procédé de cristallisation de composés faiblement acides ou fablement basiques
US9869028B2 (en)	2012-08-22	2018-01-16	Chemetics Inc.	Side stream removal of impurities in electrolysis systems
CN103539164B (zh) *	2013-11-01	2016-05-25	四川省银河化学股份有限公司	一种由含铬芒硝精制元明粉的方法
CN106048239B (zh) *	2016-06-30	2018-07-20	华南理工大学	一种含六价铬废渣的资源循环再利用的处理方法
CN105907991B (zh) *	2016-06-30	2018-01-05	华南理工大学	一种含六价铬废渣提取回收铬的脱毒处理方法
WO2019002653A1 (fr) *	2017-06-26	2019-01-03	GRANDE VILLARINO, Alejandro María	Procédé à impact environnemental minimum et à récupération maximum de lithium pour obtenir des saumures concentrées avec une teneur minimale en impuretés à partir de saumures qui imprègnent des salines et des mines de sel naturelles

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2450259B2 (de) *	1974-10-23	1979-03-29	Bayer Ag, 5090 Leverkusen	Verfahren zur Reinigung von Elektrolysesole
DE2709728C2 (de) *	1977-03-05	1981-10-29	Bayer Ag, 5090 Leverkusen	Verfahren zur Herstellung von Chlor und Alkalihydroxid durch Elektrolyse unter Einsatz von calcium- und/oder sulfathaltigem Rohsalz
US4268486A (en) *	1979-07-02	1981-05-19	Olin Corporation	Selective chromate removal from a chlorate solution
US4259297A (en) *	1979-09-04	1981-03-31	Olin Corporation	Chromate removal from concentrated chlorate solution by chemical precipitation
CA1183489A (fr) *	1980-09-02	1985-03-05	Hideo Yamamoto	Procede de recuperation des ions cr(vi) contenus dans le liqueur d'une cellule au chlorate
US4636376A (en) *	1985-09-30	1987-01-13	Ppg Industries, Inc.	Sulfate removal from alkali metal chlorate solutions
US4702805A (en) *	1986-03-27	1987-10-27	C-I-L Inc.	Production of sodium chlorate
SE455706B (sv) *	1986-12-04	1988-08-01	Eka Nobel Ab	Sett vid framstellning av alkaliemetallklorat
CA1314688C (fr) *	1987-09-14	1993-03-23	Ian Harry Warren	Epuration de systemes electrolytiques au chlorate et recuperation de dichromate

1990
- 1990-07-16 US US07/552,620 patent/US5093089A/en not_active Expired - Lifetime
1991
- 1991-04-29 AU AU76126/91A patent/AU630031B2/en not_active Ceased
- 1991-05-07 CA CA002041914A patent/CA2041914C/fr not_active Expired - Lifetime
- 1991-07-03 FI FI913234A patent/FI101530B/fi not_active IP Right Cessation
- 1991-07-09 NZ NZ238887A patent/NZ238887A/en unknown
- 1991-07-11 ZA ZA915393A patent/ZA915393B/xx unknown
- 1991-07-12 SE SE9102169A patent/SE506783C2/sv not_active IP Right Cessation
- 1991-07-15 PT PT98318A patent/PT98318B/pt not_active IP Right Cessation
- 1991-07-15 JP JP3198315A patent/JPH0624739A/ja active Pending
- 1991-07-16 CN CN91104682A patent/CN1050866C/zh not_active Expired - Fee Related
- 1991-07-16 ES ES09101663A patent/ES2033580B1/es not_active Expired - Fee Related

Also Published As

Publication number	Publication date
FI101530B1 (fi)	1998-07-15
SE506783C2 (sv)	1998-02-09
SE9102169L (sv)	1992-01-17
ES2033580B1 (es)	1997-07-16
AU630031B2 (en)	1992-10-15
CN1050866C (zh)	2000-03-29
ZA915393B (en)	1992-06-24
US5093089A (en)	1992-03-03
SE9102169D0 (sv)	1991-07-12
NZ238887A (en)	1992-08-26
FI101530B (fi)	1998-07-15
FI913234A0 (fi)	1991-07-03
CN1058240A (zh)	1992-01-29
CA2041914C (fr)	1997-12-30
PT98318A (pt)	1992-05-29
JPH0624739A (ja)	1994-02-01
PT98318B (pt)	1999-01-29
AU7612691A (en)	1992-01-16
FI913234L (fi)	1992-01-17
ES2033580A1 (es)	1993-03-16

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Legal Events

Date	Code	Title	Description
1994-09-30	EEER	Examination request
2011-05-07	MKEX	Expiry