FR2285466A1 - Chromium extn. from iron contg. lateritic ores - finely comminuted to facilitate dissoln. of chromium in acid - Google Patents

Chromium extn. from iron contg. lateritic ores - finely comminuted to facilitate dissoln. of chromium in acid

Info

Publication number
FR2285466A1
FR2285466A1 FR7528710A FR7528710A FR2285466A1 FR 2285466 A1 FR2285466 A1 FR 2285466A1 FR 7528710 A FR7528710 A FR 7528710A FR 7528710 A FR7528710 A FR 7528710A FR 2285466 A1 FR2285466 A1 FR 2285466A1
Authority
FR
France
Prior art keywords
chromium
iron
ore
acid
pref
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.)
Granted
Application number
FR7528710A
Other languages
French (fr)
Other versions
FR2285466B1 (en
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.)
Cyprus Amax Minerals Co
Original Assignee
Amax Inc
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 Amax Inc filed Critical Amax Inc
Publication of FR2285466A1 publication Critical patent/FR2285466A1/en
Application granted granted Critical
Publication of FR2285466B1 publication Critical patent/FR2285466B1/fr
Granted 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium
    • 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

Extraction of chromium from iron-contg. lateritic ores, leaving a residue suitable for recovery of iron, is improved in that the ore is very finely comminuted to produce a fine fraction form which chromium can be easily extracted with an acid; preparing an aq. slurry contg. 0.1-0.5 pt.wt. of H2SO4 per pt. wt. of the ore (pref. the slurry contains more than 20% of solids); leaching the ore at an elevated temp. (pref. 200-300 degrees C) under an elevated press. (pref. 29-71 kg/cm2); sepg. the lye and opt. washing the undissolved residue. Nickel and cobalt may be extracted along with chromium and then selectively sepd. from the lye. The sepn. of Cr from the ore is nearly complete; other metals, esp. Ni, are also removed, so that the residue is suitable for recovery of iron that can be used in steel mfr. The economy of the process is good.
FR7528710A 1974-09-23 1975-09-19 Chromium extn. from iron contg. lateritic ores - finely comminuted to facilitate dissoln. of chromium in acid Granted FR2285466A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50841974A 1974-09-23 1974-09-23

Publications (2)

Publication Number Publication Date
FR2285466A1 true FR2285466A1 (en) 1976-04-16
FR2285466B1 FR2285466B1 (en) 1980-08-14

Family

ID=24022671

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7528710A Granted FR2285466A1 (en) 1974-09-23 1975-09-19 Chromium extn. from iron contg. lateritic ores - finely comminuted to facilitate dissoln. of chromium in acid

Country Status (10)

Country Link
JP (1) JPS5156720A (en)
BR (1) BR7505992A (en)
CA (1) CA1044468A (en)
CU (1) CU34351A (en)
DE (1) DE2542214A1 (en)
FR (1) FR2285466A1 (en)
NO (1) NO141657C (en)
PH (1) PH16954A (en)
SE (1) SE406775B (en)
ZA (1) ZA755496B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2054522C (en) * 1991-10-30 2000-08-08 C. Neil Smith Ore feed heating
JP6661926B2 (en) * 2015-09-08 2020-03-11 住友金属鉱山株式会社 Method of treating ore slurry, method of hydrometallurgy of nickel oxide ore
WO2018089311A1 (en) 2016-11-08 2018-05-17 Cardiac Pacemakers, Inc Implantable medical device for atrial deployment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3082080A (en) * 1960-05-02 1963-03-19 Freeport Sulphur Co Leaching of chromium, nickel, cobalt and manganese from ores

Also Published As

Publication number Publication date
NO753224L (en) 1976-03-24
ZA755496B (en) 1976-07-28
BR7505992A (en) 1976-08-03
PH16954A (en) 1984-04-27
JPS576501B2 (en) 1982-02-05
NO141657B (en) 1980-01-07
FR2285466B1 (en) 1980-08-14
DE2542214A1 (en) 1976-04-08
JPS5156720A (en) 1976-05-18
AU8425875A (en) 1977-03-03
CA1044468A (en) 1978-12-19
SE406775B (en) 1979-02-26
NO141657C (en) 1980-04-16
CU34351A (en) 1980-10-30
SE7510577L (en) 1976-03-24

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Legal Events

Date Code Title Description
ST Notification of lapse