FR2097641A5 - Sulphate digestion of lean nickel minerals - to recover nickel cobalt,copper and magnesia - Google Patents

Sulphate digestion of lean nickel minerals - to recover nickel cobalt,copper and magnesia

Info

Publication number
FR2097641A5
FR2097641A5 FR7026260A FR7026260A FR2097641A5 FR 2097641 A5 FR2097641 A5 FR 2097641A5 FR 7026260 A FR7026260 A FR 7026260A FR 7026260 A FR7026260 A FR 7026260A FR 2097641 A5 FR2097641 A5 FR 2097641A5
Authority
FR
France
Prior art keywords
h2so4
mgso4
magnesia
copper
nickel
Prior art date
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.)
Expired
Application number
FR7026260A
Other languages
French (fr)
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.)
INST ZA TEHNOLOGIJU
Original Assignee
INST ZA TEHNOLOGIJU
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 INST ZA TEHNOLOGIJU filed Critical INST ZA TEHNOLOGIJU
Priority to FR7026260A priority Critical patent/FR2097641A5/en
Application granted granted Critical
Publication of FR2097641A5 publication Critical patent/FR2097641A5/en
Expired legal-status Critical Current

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
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/04—Obtaining nickel or cobalt by wet processes
    • C22B23/0407—Leaching processes
    • C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
    • C22B23/043—Sulfurated acids or salts thereof
    • 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

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Milled mineral particles are digested with MgSO4 soln. recycled from a later stage, and the pulp slurry washed with strong H2SO4, which in the presence of the MgSO4 facilitates the pptn. of Fe and Al-vaues (minimising the risk of alum formation at later stages). Gangue material is removed, and the liquor neutralised with highly active MgO to ppte. Ni(OH)2, which is extracted and purified by complexing with NH3 and (NH4)2 SO4. The extracted Ni is worked up conventionally to yield Ni, NiO or Ni plate. The MgSO4 soln. liquor is partly recycled to the digestion stage and partly calcined to form MgO and regenerate H2SO4. Cu and Co are spd. resp. by cementation and selective reduction. The process is economical and minimal losses of H2SO4 are involved.
FR7026260A 1970-07-16 1970-07-16 Sulphate digestion of lean nickel minerals - to recover nickel cobalt,copper and magnesia Expired FR2097641A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7026260A FR2097641A5 (en) 1970-07-16 1970-07-16 Sulphate digestion of lean nickel minerals - to recover nickel cobalt,copper and magnesia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7026260A FR2097641A5 (en) 1970-07-16 1970-07-16 Sulphate digestion of lean nickel minerals - to recover nickel cobalt,copper and magnesia

Publications (1)

Publication Number Publication Date
FR2097641A5 true FR2097641A5 (en) 1972-03-03

Family

ID=9058767

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7026260A Expired FR2097641A5 (en) 1970-07-16 1970-07-16 Sulphate digestion of lean nickel minerals - to recover nickel cobalt,copper and magnesia

Country Status (1)

Country Link
FR (1) FR2097641A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999006603A1 (en) * 1997-08-01 1999-02-11 Centaur Nickel Pty Limited Selective precipitation of nickel and cobalt
ES2136570A1 (en) * 1997-12-10 1999-11-16 Agrimartin S A Magnesium and sulphur mineral fertilizer and a procedure for its preparation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999006603A1 (en) * 1997-08-01 1999-02-11 Centaur Nickel Pty Limited Selective precipitation of nickel and cobalt
US6409979B1 (en) 1997-08-01 2002-06-25 Centaur Nickel Pty Limited Selective precipitation of nickel and cobalt
ES2136570A1 (en) * 1997-12-10 1999-11-16 Agrimartin S A Magnesium and sulphur mineral fertilizer and a procedure for its preparation

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Legal Events

Date Code Title Description
ST Notification of lapse