MA20866A1 - Procede d'elimination de metaux lourds d'acides mineraux - Google Patents

Procede d'elimination de metaux lourds d'acides mineraux

Info

Publication number: MA20866A1
Authority: MA; Morocco
Prior art keywords: heavy metals; mineral acid; mineral acids; removing heavy; alkali metal
Prior art date: 1986-02-13

Application number

MA21100A

Other languages

English (en)

Original Assignee

Hoechst Ag

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.)

1986-02-13

Filing date

1987-01-30

Publication date

1987-10-01

1987-01-30 Application filed by Hoechst Ag filed Critical Hoechst Ag

1987-10-01 Publication of MA20866A1 publication Critical patent/MA20866A1/fr

Links

239000002253 acid Substances 0.000 title abstract 5
229910052500 inorganic mineral Inorganic materials 0.000 title abstract 5
239000011707 mineral Substances 0.000 title abstract 5
150000007513 acids Chemical class 0.000 title abstract 2
229910001385 heavy metal Inorganic materials 0.000 title abstract 2
RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract 2
229910052977 alkali metal sulfide Inorganic materials 0.000 abstract 2
229910000037 hydrogen sulfide Inorganic materials 0.000 abstract 2
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
238000013019 agitation Methods 0.000 abstract 1
229910052787 antimony Inorganic materials 0.000 abstract 1
WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 abstract 1
229910052785 arsenic Inorganic materials 0.000 abstract 1
RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 abstract 1
229910052802 copper Inorganic materials 0.000 abstract 1
239000010949 copper Substances 0.000 abstract 1
229910052751 metal Inorganic materials 0.000 abstract 1
239000002184 metal Substances 0.000 abstract 1
150000002739 metals Chemical class 0.000 abstract 1
230000001376 precipitating effect Effects 0.000 abstract 1
239000007787 solid Substances 0.000 abstract 1
125000000101 thioether group Chemical group 0.000 abstract 1

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
- C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/234—Purification; Stabilisation; Concentration
- C01B25/237—Selective elimination of impurities
- C01B25/238—Cationic impurities, e.g. arsenic compounds
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/24—Condensed phosphoric acids
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/07—Purification ; Separation
- C01B7/0706—Purification ; Separation of hydrogen chloride
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/10—Sulfates

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Removal Of Specific Substances (AREA)
Manufacture And Refinement Of Metals (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Treatment Of Sludge (AREA)

MA21100A 1986-02-13 1987-01-30 Procede d'elimination de metaux lourds d'acides mineraux MA20866A1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19863604483 DE3604483A1 (de)	1986-02-13	1986-02-13	Verfahren zum entfernen von schwermetallen aus mineralsaeuren

Publications (1)

Publication Number	Publication Date
MA20866A1 true MA20866A1 (fr)	1987-10-01

Family

ID=6293998

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
MA21100A MA20866A1 (fr)	1986-02-13	1987-01-30	Procede d'elimination de metaux lourds d'acides mineraux

Country Status (7)

Country	Link
US (1)	US4777028A (fr)
EP (1)	EP0232766B1 (fr)
JP (1)	JPS62191409A (fr)
AT (1)	ATE69035T1 (fr)
DE (2)	DE3604483A1 (fr)
ES (1)	ES2027235T3 (fr)
MA (1)	MA20866A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4327401A1 (de) *	1993-08-14	1995-02-16	Hoechst Ag	Verfahren zur Entfernung von Blei und Cadmium aus Phosphorsäure
DE19811763A1 (de) *	1998-03-18	1999-09-23	Stadtwerke Karlsruhe Gmbh	Verfahren zur Abtrennung von Arsen
DE69932857T2 (de) *	1998-12-28	2007-03-01	Toyo Boseki K.K.	Verfahren zur reinigung von phosphorsäure
US20040179984A1 (en) *	2003-03-13	2004-09-16	Nagaraj D. R.	Process for removing metal impurities from wet process phosphoric acid and compositions thereof
JP4316946B2 (ja)	2003-07-01	2009-08-19	日本化学工業株式会社	高純度リン酸及びその製造方法
JP4567344B2 (ja) *	2004-02-12	2010-10-20	前澤工業株式会社	ヒ素の除去方法
CN101759158B (zh) *	2009-12-23	2011-06-29	河南豫光金铅股份有限公司	从废污酸中再生回收硫酸的方法
EP2455500A1 (fr) *	2010-11-22	2012-05-23	Costech International S.p.A.	Procédé de traitement de tubes à rayons cathodiques en fin de vie pour la récupération de silicates solubles et en plomb
CN102431982A (zh) *	2011-09-26	2012-05-02	瓮福（集团）有限责任公司	一种磷酸脱砷方法
CN102730655B (zh) *	2012-06-26	2013-12-18	瓮福（集团）有限责任公司	肥料级磷酸微波加热制备高浓度磷酸的方法
ES3059364T3 (en) *	2020-03-16	2026-03-19	Dupont Safety & Construction Inc	Concentration of sulfuric acid
CN112279231B (zh) *	2020-11-10	2022-06-21	云南磷化集团有限公司	一种湿法磷酸真空脱氟的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1538089A (en) *	1922-03-23	1925-05-19	Fed Phosphorous Company	Process for the purification of phosphoric acid
US1597984A (en) *	1923-09-13	1926-08-31	Bour Harry E La	Method of concentrating and purification of phosphoric acid
DE2109970C3 (de) *	1971-03-03	1980-03-20	Hoechst Ag, 6000 Frankfurt	Verfahren und Vorrichtung zur Entarsenierung von Polyphosphorsäure
US3873581A (en) *	1971-10-21	1975-03-25	Toms River Chemical Corp	Process for reducing the level of contaminating mercury in aqueous solutions
DE2422902A1 (de) *	1974-05-11	1975-11-20	Kalk Chemische Fabrik Gmbh	Verfahren zur herstellung von cadmiumsulfid aus phosphorsaeure
JPS53110997A (en) *	1977-03-10	1978-09-28	Mitsui Toatsu Chem Inc	Purifying method for impure phosphoric acid
SE418845B (sv) *	1979-05-10	1981-06-29	Boliden Ab	Forfarande for rening av vatprocessfosforsyra
DE3418241A1 (de) *	1984-05-16	1985-11-21	Metallgesellschaft Ag, 6000 Frankfurt	Verfahren zur entfernung von arsen aus abfallschwefelsaeure

1986
- 1986-02-13 DE DE19863604483 patent/DE3604483A1/de not_active Withdrawn
1987
- 1987-01-22 ES ES198787100866T patent/ES2027235T3/es not_active Expired - Lifetime
- 1987-01-22 AT AT87100866T patent/ATE69035T1/de not_active IP Right Cessation
- 1987-01-22 DE DE8787100866T patent/DE3774141D1/de not_active Expired - Fee Related
- 1987-01-22 EP EP87100866A patent/EP0232766B1/fr not_active Expired - Lifetime
- 1987-01-30 US US07/009,188 patent/US4777028A/en not_active Expired - Fee Related
- 1987-01-30 MA MA21100A patent/MA20866A1/fr unknown
- 1987-02-13 JP JP62029956A patent/JPS62191409A/ja active Pending

Also Published As

Publication number	Publication date
EP0232766A3 (en)	1988-12-21
EP0232766A2 (fr)	1987-08-19
DE3604483A1 (de)	1987-08-20
JPS62191409A (ja)	1987-08-21
US4777028A (en)	1988-10-11
ES2027235T3 (es)	1992-06-01
ATE69035T1 (de)	1991-11-15
EP0232766B1 (fr)	1991-10-30
DE3774141D1 (de)	1991-12-05

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