AU583103B2 – Further improvements in tungsten recovery
– Google Patents
AU583103B2 – Further improvements in tungsten recovery
– Google Patents
Further improvements in tungsten recovery
Info
Publication number
AU583103B2
AU583103B2
AU55059/86A
AU5505986A
AU583103B2
AU 583103 B2
AU583103 B2
AU 583103B2
AU 55059/86 A
AU55059/86 A
AU 55059/86A
AU 5505986 A
AU5505986 A
AU 5505986A
AU 583103 B2
AU583103 B2
AU 583103B2
Authority
AU
Australia
Prior art keywords
tungsten
promoter
hydrogen peroxide
promoters
blocks
Prior art date
1985-03-29
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.)
Ceased
Application number
AU55059/86A
Other versions
AU5505986A
(en
Inventor
Diana Mary Anderson
Denis Albert Hutton
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 Interox Ltd
Original Assignee
Interox Chemicals 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.)
1985-03-29
Filing date
1986-03-24
Publication date
1989-04-20
1986-03-24
Application filed by Interox Chemicals Ltd
filed
Critical
Interox Chemicals Ltd
1986-10-02
Publication of AU5505986A
publication
Critical
patent/AU5505986A/en
1989-04-20
Application granted
granted
Critical
1989-04-20
Publication of AU583103B2
publication
Critical
patent/AU583103B2/en
2006-03-24
Anticipated expiration
legal-status
Critical
Status
Ceased
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
C22B7/006—Wet processes
C22B7/007—Wet processes by acid leaching
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C01G41/00—Compounds of tungsten
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
C22B3/16—Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
C22B3/1608—Leaching with acyclic or carbocyclic agents
C22B3/1616—Leaching with acyclic or carbocyclic agents of a single type
C22B3/165—Leaching with acyclic or carbocyclic agents of a single type with organic 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
C22B34/00—Obtaining refractory metals
C22B34/30—Obtaining chromium, molybdenum or tungsten
C22B34/36—Obtaining tungsten
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
Abstract
The scarcity of high grade tungsten ores obliges users to seek to recover it from scrap materials, but drill bits in particular pose especial problems. Existing proposals to use acidic hydrogen peroxide to oxides and solubilize tungsten is extremely inefficient in reagent consumption per unit tungsten recovered. According to the present invention, hydrogen peroxide can be used considerably more efficiently in the extraction of tungsten into an aqueous acidic solution by employing certain promoters which are solid at 50 DEG C. in the form of fused blocks. These blocks release the promoter slowly into the reaction solution and achieve similar efficiency of use of hydrogen peroxide and acid but at markedly reduced consumption of promoter in comparison with the same promoter added in powder or granular form. Examples of such promoter are hydroxy or amino substituted aromatic carboxylic acids e.g. 2-hydroxybenzoic acid. The promoters can most conveniently be used in a multi-stage tungsten extraction process.
AU55059/86A
1985-03-29
1986-03-24
Further improvements in tungsten recovery
Ceased
AU583103B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
GB8508334
1985-03-29
GB8508334A
GB8508334D0
(en)
1985-03-29
1985-03-29
Tungsten recovery
Publications (2)
Publication Number
Publication Date
AU5505986A
AU5505986A
(en)
1986-10-02
AU583103B2
true
AU583103B2
(en)
1989-04-20
Family
ID=10576933
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU55059/86A
Ceased
AU583103B2
(en)
1985-03-29
1986-03-24
Further improvements in tungsten recovery
Country Status (12)
Country
Link
US
(1)
US4784687A
(en)
EP
(1)
EP0200318B1
(en)
JP
(1)
JPH0712931B2
(en)
AT
(1)
ATE54676T1
(en)
AU
(1)
AU583103B2
(en)
BR
(1)
BR8601398A
(en)
CA
(1)
CA1281552C
(en)
DE
(1)
DE3672666D1
(en)
ES
(1)
ES8800366A1
(en)
GB
(1)
GB8508334D0
(en)
IL
(1)
IL78310A
(en)
ZA
(1)
ZA862232B
(en)
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB8508335D0
(en)
*
1985-03-29
1985-05-09
Interox Chemicals Ltd
Tungsten recovery
KR890000679A
(en)
*
1986-06-25
1989-03-16
더 유니버시티 어브 멜버른
Mineral treatment
US11397171B2
(en)
*
2017-09-18
2022-07-26
Ecolab Usa Inc.
Adaptive range flow titration systems and methods with sample conditioning
US11397170B2
(en)
*
2018-04-16
2022-07-26
Ecolab Usa Inc.
Repetition time interval adjustment in adaptive range titration systems and methods
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2125642A
(en)
*
1934-07-27
1938-08-02
Meyer Mineral Separation Compa
Metallurgy of ferroalloy metals
US2704240A
(en)
*
1951-10-23
1955-03-15
American Brake Shoe Co
Process of preparing tungstic oxide from sintered masses containing tungsten carbide
JPS4021991Y1
(en)
*
1964-01-28
1965-07-28
US4533527A
(en)
*
1982-09-04
1985-08-06
Interox Chemicals Limited
Tungsten recovery from carbides
1985
1985-03-29
GB
GB8508334A
patent/GB8508334D0/en
active
Pending
1986
1986-03-17
DE
DE8686301918T
patent/DE3672666D1/en
not_active
Expired – Fee Related
1986-03-17
AT
AT86301918T
patent/ATE54676T1/en
active
1986-03-17
EP
EP19860301918
patent/EP0200318B1/en
not_active
Expired – Lifetime
1986-03-18
US
US06/840,766
patent/US4784687A/en
not_active
Expired – Fee Related
1986-03-24
AU
AU55059/86A
patent/AU583103B2/en
not_active
Ceased
1986-03-25
ZA
ZA862232A
patent/ZA862232B/en
unknown
1986-03-25
CA
CA 504949
patent/CA1281552C/en
not_active
Expired – Fee Related
1986-03-26
ES
ES553506A
patent/ES8800366A1/en
not_active
Expired
1986-03-26
BR
BR8601398A
patent/BR8601398A/en
not_active
IP Right Cessation
1986-03-28
IL
IL7831086A
patent/IL78310A/en
not_active
IP Right Cessation
1986-03-28
JP
JP6887786A
patent/JPH0712931B2/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
IL78310A
(en)
1989-09-28
GB8508334D0
(en)
1985-05-09
IL78310A0
(en)
1986-07-31
ES8800366A1
(en)
1987-11-01
ATE54676T1
(en)
1990-08-15
US4784687A
(en)
1988-11-15
EP0200318A1
(en)
1986-11-05
ES553506A0
(en)
1987-11-01
ZA862232B
(en)
1986-11-26
DE3672666D1
(en)
1990-08-23
AU5505986A
(en)
1986-10-02
CA1281552C
(en)
1991-03-19
EP0200318B1
(en)
1990-07-18
JPS61232220A
(en)
1986-10-16
JPH0712931B2
(en)
1995-02-15
BR8601398A
(en)
1986-12-09
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