BR7608406A - Processo para desintegracao de minerio de cromo rico em acido silicico - Google Patents

Processo para desintegracao de minerio de cromo rico em acido silicico

Info

Publication number
BR7608406A
BR7608406A BR7608406A BR7608406A BR7608406A BR 7608406 A BR7608406 A BR 7608406A BR 7608406 A BR7608406 A BR 7608406A BR 7608406 A BR7608406 A BR 7608406A BR 7608406 A BR7608406 A BR 7608406A
Authority
BR
Brazil
Prior art keywords
disintegration
silicic acid
oil rich
chrome
chrome oil
Prior art date
Application number
BR7608406A
Other languages
English (en)
Inventor
H Niederprum
J Meusdoerffer
H Vahrenholz
W Bockelmann
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 BR7608406A publication Critical patent/BR7608406A/pt

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
    • C22B5/00—General methods of reducing to metals
    • C22B5/02—Dry methods smelting of sulfides or formation of mattes
    • C22B5/04—Dry methods smelting of sulfides or formation of mattes by aluminium, other metals or silicon
    • 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)
  • Silicon Compounds (AREA)
BR7608406A 1975-12-19 1976-12-15 Processo para desintegracao de minerio de cromo rico em acido silicico BR7608406A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2557403A DE2557403C2 (de) 1975-12-19 1975-12-19 Verfahren zum Aufschluß Kieselsäure-reicher Chromerze

Publications (1)

Publication Number Publication Date
BR7608406A true BR7608406A (pt) 1977-12-13

Family

ID=5964935

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7608406A BR7608406A (pt) 1975-12-19 1976-12-15 Processo para desintegracao de minerio de cromo rico em acido silicico

Country Status (8)

Country Link
US (1) US4112046A (pt)
JP (1) JPS5277900A (pt)
BR (1) BR7608406A (pt)
DE (1) DE2557403C2 (pt)
ES (1) ES454382A1 (pt)
FR (1) FR2335608A1 (pt)
GB (1) GB1537908A (pt)
IT (1) IT1069098B (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2607131C2 (de) * 1976-02-21 1983-11-24 Bayer Ag, 5090 Leverkusen Verfahren zum Aufschluß von Chromerzen
US4320094A (en) * 1980-04-15 1982-03-16 Cabot Corporation Partitioning of refractory metals from oxidation resistant scrap alloy
US4753750A (en) * 1984-12-31 1988-06-28 Delaware Liquid laundry detergent composition and method of use
US5125134A (en) * 1985-12-27 1992-06-30 Tamao Morita Magnetic fastener
US5707091A (en) * 1996-06-05 1998-01-13 Tarmo Company, Limited Fastener
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

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR636782A (pt) * 1928-04-16
FR381266A (fr) * 1907-08-26 1908-01-07 Emilien Viel Procédé pour la fabrication du chrome pur au moyen du ferrochrome du commerce ou d'un oxyde naturel tel que la chromite
US1760788A (en) * 1926-07-01 1930-05-27 Ig Farbenindustrie Ag Production of chromates with simultaneous recovery of alumina
GB612517A (en) * 1942-07-06 1948-11-15 Electro Chimie Metal Improvements in the manufacture of alkali chromates
CH262268A (fr) * 1942-07-06 1949-06-30 Electro Chimie Metal Procédé de fabrication de chromates alcalins.
US2904396A (en) * 1955-03-30 1959-09-15 Bayer Ag Preparation of alkali metal chromate from chrome ores
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 (pt) * 1972-11-11 1977-11-22 Nippon Chemical Ind
DE2365271C3 (de) * 1973-12-31 1979-03-29 Nippon Chemical Industrial Co. Ltd., Tokio Verfahren zur Herstellung von Natriumchromat
DE2542054C2 (de) * 1975-09-20 1982-02-25 Bayer Ag, 5090 Leverkusen Verfahren zum Aufschluß von Chromerzen
DE2607131C2 (de) * 1976-02-21 1983-11-24 Bayer Ag, 5090 Leverkusen Verfahren zum Aufschluß von Chromerzen

Also Published As

Publication number Publication date
GB1537908A (en) 1979-01-10
US4112046A (en) 1978-09-05
JPS5728363B2 (pt) 1982-06-16
IT1069098B (it) 1985-03-25
ES454382A1 (es) 1977-12-16
FR2335608B1 (pt) 1983-01-28
FR2335608A1 (fr) 1977-07-15
DE2557403A1 (de) 1977-06-30
JPS5277900A (en) 1977-06-30
DE2557403C2 (de) 1983-01-13

Similar Documents

Publication Publication Date Title
BR7906733A (pt) Processo para preparar acido tereftalico
BR7603488A (pt) Processo para inibir corrosao
BR7700875A (pt) Corpos formados de silicato de calcio e processo para produzir os mesmos
BR7602788A (pt) Processo para produzir acido sulfurico
BR7600709A (pt) Processo para produzir polpa celulosica
BR8000728A (pt) Processo para producao de amidas de acido alfa-hidroxi-carboxilico
BR7805060A (pt) Processo para preparar acido 1r-cis-caronaldeidico
BR7506071A (pt) Processo para preparar acido 2-cetol-gulonico
BR7605039A (pt) Processo para cloracao direta de alcoilbenzenos
BR7602965A (pt) Processo para preparar organosiloxanos
BR7802499A (pt) Processo para produzir beta-l-frutofuranosil alfa-l-glucopiranosidio
BR7604336A (pt) Processo para a preparacao de acido sulfurico
BR7508189A (pt) Processo para preparacao de n-(fosfono-metil)-glic na
BR7700036A (pt) Processo para purificacao de acido fosforico
BR7800683A (pt) Aperfeicoamento em processo para melhorar carvao;e processo para beneficiamento de carvao
BR7607643A (pt) Processo para preparar esteres sulfo-hidroxi-propilicos e produtos obtidos
BR7608406A (pt) Processo para desintegracao de minerio de cromo rico em acido silicico
MX144528A (es) Proceso y aparato mejorados para preparar soluciones alcoholicas de acido fosforico
BR7804646A (pt) Processo para a preparacao de amidas do acido a-acetocarboxilico n-substituidas e composicao assim obtida
BR7605612A (pt) Processo aperfeicoado para preparar triaril-fosfinas
BR7604368A (pt) Processo para producao de acido sulfurico
BR7605232A (pt) Processo para produzir acido fosforico de grau tecnico
BR7603700A (pt) Processo para processar produtos de folha
BR7603688A (pt) Processo para preparar tici3 violeta
BR7504687A (pt) Processo para producao de composicoes de carbamoto ou ureia;e processo para produzir aldicarb