ES456031A1 - Procedimiento mejorado para descomponer minerales de cromo. - Google Patents

Procedimiento mejorado para descomponer minerales de cromo.

Info

Publication number
ES456031A1
ES456031A1 ES456031A ES456031A ES456031A1 ES 456031 A1 ES456031 A1 ES 456031A1 ES 456031 A ES456031 A ES 456031A ES 456031 A ES456031 A ES 456031A ES 456031 A1 ES456031 A1 ES 456031A1
Authority
ES
Spain
Prior art keywords
sio2
chromium
disintegration
al2o3
ratio
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
ES456031A
Other languages
English (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.)
Bayer AG
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 ES456031A1 publication Critical patent/ES456031A1/es
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
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium
    • 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

Procedimiento mejorado para descomponer minerales de cromo, en la descomposición de una cromita o un residuo conteniendo cromo, donde el material que contiene cromo se descompone con un compuesto alcalino en presencia de oxígeno y un diluyente a una temperatura superior a unos 800ºC y a continuación se lixivia, caracterizado porque comprende precalcinar el material que contiene el cromo, en caso dado después de agregar un aditivo con anterioridad a la adición del compuesto alcalino.
ES456031A 1976-02-21 1977-02-18 Procedimiento mejorado para descomponer minerales de cromo. Expired ES456031A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2607131A DE2607131C2 (de) 1976-02-21 1976-02-21 Verfahren zum Aufschluß von Chromerzen

Publications (1)

Publication Number Publication Date
ES456031A1 true ES456031A1 (es) 1978-02-16

Family

ID=5970552

Family Applications (1)

Application Number Title Priority Date Filing Date
ES456031A Expired ES456031A1 (es) 1976-02-21 1977-02-18 Procedimiento mejorado para descomponer minerales de cromo.

Country Status (8)

Country Link
US (1) US4500350A (es)
JP (1) JPS5939371B2 (es)
BR (1) BR7701001A (es)
DE (1) DE2607131C2 (es)
ES (1) ES456031A1 (es)
FR (1) FR2341658A1 (es)
GB (1) GB1552706A (es)
IT (1) IT1104168B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2557403C2 (de) * 1975-12-19 1983-01-13 Bayer Ag, 5090 Leverkusen Verfahren zum Aufschluß Kieselsäure-reicher Chromerze
DE2935718C2 (de) * 1979-09-04 1982-08-12 Bayer Ag, 5090 Leverkusen Verfahren zum oxidativen Aufschluß von chromhaltigen Erzen
US5330558A (en) * 1993-03-31 1994-07-19 Henkel Corporation Method for removing chromium containing coatings from aluminum substrates
US7220394B2 (en) * 2002-10-30 2007-05-22 Council Of Scientific And Industrial Research Process for simultaneous recovery of chromium and iron from chromite ore processing residue
WO2004083123A1 (fr) * 2003-03-19 2004-09-30 Institute Of Process Engineering Chinese Academy Of Sciences Procede d'obtention de chromates de metal alcalin
CN104762494B (zh) * 2015-04-03 2017-05-03 攀钢集团攀枝花钢铁研究院有限公司 一种从铬铁矿中提取铬的方法
WO2018172284A1 (en) * 2017-03-21 2018-09-27 Lanxess Deutschland Gmbh Process for preparing iron- and chrome-containing particles

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI28983A (fi) * 1957-04-10 Hammarberg Axel Sätt att framställa metall eller metallföreningar ur oxidmalmer
GB273666A (en) * 1927-06-30 1928-01-12 Ig Farbenindustrie Ag Process for the production of chromates
US1948143A (en) * 1932-03-30 1934-02-20 Mutual Chemical Company Manufacture of chromates
GB612517A (en) * 1942-07-06 1948-11-15 Electro Chimie Metal Improvements in the manufacture of alkali chromates
GB1186439A (en) * 1966-07-12 1970-04-02 Bayer Ag Alkali Treatment of Chromium Ores
US3812234A (en) * 1969-05-24 1974-05-21 Bayer Ag Process for the production of alkalichromate
JPS5246200B2 (es) * 1972-11-11 1977-11-22 Nippon Chemical Ind
DE2557403C2 (de) * 1975-12-19 1983-01-13 Bayer Ag, 5090 Leverkusen Verfahren zum Aufschluß Kieselsäure-reicher Chromerze

Also Published As

Publication number Publication date
DE2607131C2 (de) 1983-11-24
GB1552706A (en) 1979-09-19
FR2341658A1 (fr) 1977-09-16
DE2607131A1 (de) 1977-08-25
IT1104168B (it) 1985-10-21
FR2341658B1 (es) 1984-01-20
JPS52107300A (en) 1977-09-08
JPS5939371B2 (ja) 1984-09-22
BR7701001A (pt) 1977-12-13
US4500350A (en) 1985-02-19

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