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FI861017A0 - FOERFARANDE FOER AOTERCIRKULERING AV METALLSULFATHALTIG SVAVELSYRA. - Google Patents

FOERFARANDE FOER AOTERCIRKULERING AV METALLSULFATHALTIG SVAVELSYRA.

Info

Publication number
FI861017A0
FI861017A0 FI861017A FI861017A FI861017A0 FI 861017 A0 FI861017 A0 FI 861017A0 FI 861017 A FI861017 A FI 861017A FI 861017 A FI861017 A FI 861017A FI 861017 A0 FI861017 A0 FI 861017A0
Authority
FI
Finland
Prior art keywords
svavelsyra
metallsulfathaltig
aotercirkulering
foerfarande foer
foerfarande
Prior art date
Application number
FI861017A
Other languages
Finnish (fi)
Other versions
FI89875B (en
FI89875C (en
FI861017A (en
Inventor
Guenter Lailach
Rudolf Gerken
Fuerden Armin Van
Original Assignee
Bayer 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.)
Filing date
Publication date
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of FI861017A0 publication Critical patent/FI861017A0/en
Publication of FI861017A publication Critical patent/FI861017A/en
Publication of FI89875B publication Critical patent/FI89875B/en
Application granted granted Critical
Publication of FI89875C publication Critical patent/FI89875C/en

Links

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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching
    • C22B34/1259—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching treatment or purification of titanium containing solutions or liquors or slurries
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/36—Regeneration of waste pickling liquors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Filtering Materials (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Sludge (AREA)
  • Paper (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
FI861017A 1985-03-14 1986-03-12 Process for the recycling of metal sulfate-containing sulfuric acid FI89875C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3509069 1985-03-14
DE3509069 1985-03-14
DE19853511479 DE3511479A1 (en) 1985-03-14 1985-03-29 METHOD FOR RECIRCULATING SULFURIC ACID CONTAINING METAL SULFATE
DE3511479 1985-03-29

Publications (4)

Publication Number Publication Date
FI861017A0 true FI861017A0 (en) 1986-03-12
FI861017A FI861017A (en) 1986-09-15
FI89875B FI89875B (en) 1993-08-31
FI89875C FI89875C (en) 1993-12-10

Family

ID=25830288

Family Applications (1)

Application Number Title Priority Date Filing Date
FI861017A FI89875C (en) 1985-03-14 1986-03-12 Process for the recycling of metal sulfate-containing sulfuric acid

Country Status (5)

Country Link
EP (1) EP0194544B1 (en)
CA (1) CA1288211C (en)
DE (2) DE3511479A1 (en)
FI (1) FI89875C (en)
NO (1) NO167970C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2634751B1 (en) * 1988-07-29 1991-02-08 Metaleurop Sa
EP0362428B1 (en) 1988-10-06 1992-12-23 KRONOS TITAN-Gesellschaft mbH Process and apparatus for the treatment of a sulfuric-acid solution containing ferrous sulfate
DE3927751A1 (en) * 1989-08-23 1991-02-28 Bayer Ag METHOD FOR CONCENTRATING SULFURIC ACID CONTAINING METAL SULFATE
DE4015538A1 (en) * 1990-05-15 1991-11-21 Bayer Ag METHOD FOR PRODUCING TITANIUM DIOXIDE
FR2663860B1 (en) * 1990-07-02 1994-03-04 Sollac FILTER FOR USE IN SEPARATING SILICIC COMPOUNDS CONTAINED IN AN ACIDIC BATH, METHOD AND DEVICE FOR SEPARATING SAID SILICIC COMPOUNDS.
ES2049127B1 (en) * 1991-06-13 1994-10-01 Tioxide Espa A S A CORRECTOR OF MICROELEMENTS LAWS FOR AGRICULTURAL SOILS AND PROCEDURE FOR ITS PREPARATION.
DE19829592C1 (en) * 1998-07-02 1999-12-09 Umweltanalytisches Zentrum Gro Mineral acids containing metals from pickling plants are processed and recovered

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1500285A (en) * 1965-09-19 1967-11-03 Polysius Ag Pasta drying process
US3743484A (en) * 1969-12-30 1973-07-03 Daido Chem Eng Corp Regeneration of sulfuric acid pickling waste
DE3128768A1 (en) * 1981-07-21 1983-02-10 Werner Prof. Dr. 6740 Landau Stahl Filter press
DE3327770A1 (en) * 1983-08-02 1985-02-14 Bayer Ag, 5090 Leverkusen METHOD FOR PROCESSING SULFURIC ACIDS CONTAINING METAL SULFATE
DE3327769A1 (en) * 1983-08-02 1985-02-14 Bayer Ag, 5090 Leverkusen METHOD FOR THE TREATMENT OF THICK ACID

Also Published As

Publication number Publication date
NO860712L (en) 1986-09-15
FI89875B (en) 1993-08-31
CA1288211C (en) 1991-09-03
EP0194544A3 (en) 1988-09-21
FI89875C (en) 1993-12-10
FI861017A (en) 1986-09-15
DE3681470D1 (en) 1991-10-24
DE3511479A1 (en) 1986-09-18
NO167970B (en) 1991-09-23
EP0194544A2 (en) 1986-09-17
NO167970C (en) 1992-01-02
EP0194544B1 (en) 1991-09-18

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Legal Events

Date Code Title Description
BB Publication of examined application
PC Transfer of assignment of patent

Owner name: KERR-MCGEE PIGMENTS GMBH & CO. KG

FG Patent granted

Owner name: KERR-MCGEE PIGMENTS GMBH & CO. KG

MA Patent expired