WO2009011074A1 - Method of alkali treatment of substance containing arsenic - Google Patents

Method of alkali treatment of substance containing arsenic Download PDF

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Publication number
WO2009011074A1
WO2009011074A1 PCT/JP2007/070861 JP2007070861W WO2009011074A1 WO 2009011074 A1 WO2009011074 A1 WO 2009011074A1 JP 2007070861 W JP2007070861 W JP 2007070861W WO 2009011074 A1 WO2009011074 A1 WO 2009011074A1
Authority
WO
WIPO (PCT)
Prior art keywords
arsenic
diarsenic trioxide
slurry
treating
liquid
Prior art date
Application number
PCT/JP2007/070861
Other languages
French (fr)
Japanese (ja)
Inventor
Mitsuo Abumiya
Yusuke Sato
Hironobu Mikami
Masami Oouchi
Tetsuo Fujita
Masayoshi Matsumoto
Original Assignee
Dowa Metals & Mining 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.)
Filing date
Publication date
Application filed by Dowa Metals & Mining Co., Ltd. filed Critical Dowa Metals & Mining Co., Ltd.
Publication of WO2009011074A1 publication Critical patent/WO2009011074A1/en

Links

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
    • C22B30/00—Obtaining antimony, arsenic or bismuth
    • C22B30/04—Obtaining arsenic
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • 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
    • 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
    • C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
    • 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
    • C22B7/008—Wet processes by an alkaline or ammoniacal leaching
    • 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)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Removal Of Specific Substances (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

A method of treating arsenic contained in nonferrous smelting intermediate products, especially a method that in the treatment of arsenic in its diarsenic trioxide form, satisfies the leaching standard (in accordance with Notice No. 13 from the Environment Agency), realizing excellence in filtration performance and easy formation of stable scorodite at high reproducibility without any cumbersome operation. There is provided a method of treating diarsenic trioxide, comprising the leaching step of adding water and alkali to a nonferrous smelting intermediate product containing diarsenic trioxide to thereby obtain a slurry and heating the slurry to thereby leach arsenic; the liquid regulation step of adding an oxidizing agent to the leachate so as to oxidize the trivalent arsenic to the pentavalent arsenic, thereby obtaining a regulated liquid; and the crystallization step of converting the arsenic of the regulated liquid to scorodite crystal.
PCT/JP2007/070861 2007-07-13 2007-10-25 Method of alkali treatment of substance containing arsenic WO2009011074A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007185072 2007-07-13
JP2007-185072 2007-07-13

Publications (1)

Publication Number Publication Date
WO2009011074A1 true WO2009011074A1 (en) 2009-01-22

Family

ID=40259422

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/070861 WO2009011074A1 (en) 2007-07-13 2007-10-25 Method of alkali treatment of substance containing arsenic

Country Status (2)

Country Link
CL (1) CL2008002064A1 (en)
WO (1) WO2009011074A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09241776A (en) * 1996-03-08 1997-09-16 Nikko Kinzoku Kk Separation of arsenic container in smelting intermediate material and recovering method of arsenic
JP2000219920A (en) * 1999-01-29 2000-08-08 Dowa Mining Co Ltd Method for removing and fixing aresenic from solution containing arsenic
JP2006328498A (en) * 2005-05-27 2006-12-07 Univ Of Tokyo Method for making recyclable neutral sediment generated in water treatment stage for acid mining waste water

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09241776A (en) * 1996-03-08 1997-09-16 Nikko Kinzoku Kk Separation of arsenic container in smelting intermediate material and recovering method of arsenic
JP2000219920A (en) * 1999-01-29 2000-08-08 Dowa Mining Co Ltd Method for removing and fixing aresenic from solution containing arsenic
JP2006328498A (en) * 2005-05-27 2006-12-07 Univ Of Tokyo Method for making recyclable neutral sediment generated in water treatment stage for acid mining waste water

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FILIPPOU D. AND DEMOPOULOS G.P.: "Arsenic Immobilization by Controlled Scorodite Precipitation", JOM, vol. 49, no. 12, 1997, pages 52 - 55, XP003024717 *

Also Published As

Publication number Publication date
CL2008002064A1 (en) 2009-03-06

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