[go: up one dir, main page]

BR9006392A - Processo para a obtencao de acido cromico - Google Patents

Processo para a obtencao de acido cromico

Info

Publication number
BR9006392A
BR9006392A BR909006392A BR9006392A BR9006392A BR 9006392 A BR9006392 A BR 9006392A BR 909006392 A BR909006392 A BR 909006392A BR 9006392 A BR9006392 A BR 9006392A BR 9006392 A BR9006392 A BR 9006392A
Authority
BR
Brazil
Prior art keywords
chromic acid
obtaining
obtaining chromic
acid
chromic
Prior art date
Application number
BR909006392A
Other languages
English (en)
Inventor
Norbert Loenhoff
Ludwig Schmidt
Hans-Dieter Block
Rainer Weber
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 BR9006392A publication Critical patent/BR9006392A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C01G37/02—Oxides or hydrates thereof
    • C01G37/033—Chromium trioxide; Chromic acid
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/22—Inorganic acids
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/06—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese
    • C25C1/10—Electrolytic production, recovery or refining of metals by electrolysis of solutions or iron group metals, refractory metals or manganese of chromium or manganese

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
BR909006392A 1989-12-16 1990-12-14 Processo para a obtencao de acido cromico BR9006392A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3941569 1989-12-16

Publications (1)

Publication Number Publication Date
BR9006392A true BR9006392A (pt) 1991-09-24

Family

ID=6395581

Family Applications (1)

Application Number Title Priority Date Filing Date
BR909006392A BR9006392A (pt) 1989-12-16 1990-12-14 Processo para a obtencao de acido cromico

Country Status (8)

Country Link
US (1) US5096548A (pt)
EP (1) EP0433750B1 (pt)
JP (1) JP3043437B2 (pt)
BR (1) BR9006392A (pt)
CA (1) CA2032368A1 (pt)
DE (1) DE59003699D1 (pt)
ES (1) ES2060906T3 (pt)
ZA (1) ZA9010060B (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2134503C (en) * 1994-02-18 2001-04-10 Mark E. Lashier Olefin production
US6063252A (en) * 1997-08-08 2000-05-16 Raymond; John L. Method and apparatus for enriching the chromium in a chromium plating bath
IL265376B2 (en) * 2016-09-20 2024-08-01 Aqua Membranes Llc Permeate flow patterns

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA739447A (en) * 1966-07-26 W. Carlin William Electrolytic production of chromic acid
DE371222C (de) * 1921-02-19 1923-03-13 Otto Nydegger Dr Verfahren zur Darstellung von festem Chromsaeureanhydrid
US1739107A (en) * 1925-11-05 1929-12-10 Marvin J Udy Process of making chromic acid
US1928294A (en) * 1930-11-25 1933-09-26 Liebreich Erik Method of refining chromium and chromium alloys
US2601306A (en) * 1948-02-24 1952-06-24 Rex R Lloyd Method for dissolution of chromium from chromite ores
US2771413A (en) * 1951-06-27 1956-11-20 Reginald S Dean Electrodeposition of chromium
US3595765A (en) * 1965-10-08 1971-07-27 Great Lakes Carbon Corp Process for the electrolytic regeneration of reduced chromium compounds
DE2310622A1 (de) * 1973-03-02 1974-09-12 Basf Ag Diaphragmenzelle fuer die herstellung von schwefelsauren chromsaeureloesungen
US3983016A (en) * 1974-07-19 1976-09-28 Ppg Industries, Inc. Method of preparing chromium
US4273628A (en) * 1979-05-29 1981-06-16 Diamond Shamrock Corp. Production of chromic acid using two-compartment and three-compartment cells
FI61855C (fi) * 1980-08-05 1982-10-11 Outokumpu Oy Foerfarande foer framstaellning av en jaernfri krom(iii)foerening
US4355710A (en) * 1980-08-25 1982-10-26 Horton Industries, Inc. Spring engaged fluid released fan clutch for a live shaft
JPS6247436A (ja) * 1985-08-26 1987-03-02 Toyo Soda Mfg Co Ltd 高純度金属クロムの製造法

Also Published As

Publication number Publication date
ES2060906T3 (es) 1994-12-01
CA2032368A1 (en) 1991-06-17
US5096548A (en) 1992-03-17
EP0433750B1 (de) 1993-12-01
DE59003699D1 (de) 1994-01-13
JP3043437B2 (ja) 2000-05-22
ZA9010060B (en) 1991-10-30
JPH03260082A (ja) 1991-11-20
EP0433750A1 (de) 1991-06-26

Similar Documents

Publication Publication Date Title
BR9101325A (pt) Processo para a producao de um aldeido insaturado ou de um acido insaturado
BR8802484A (pt) Processo para a preparacao de isocianatos
BR8804535A (pt) Processo para a obtencao de c8-ate c24-alquiloligoglicosidios e-alquilglicosidios
PT92919A (pt) Processo para a preparacao de agentes ansioliticos bis-azabiciclicos
BR9002354A (pt) Processo para producao de um polimero de olefina
PT84806B (pt) Processo para a preparacao de benzopiranos
PT94188A (pt) Processo para a purificacao de acidos aminometilenofosfonicos
PT92786A (pt) Processo para a preparacao de compostos de tiazol
PT92232A (pt) Processo para a separacao de acido folinico
BR9006396A (pt) Processo para a producao de acido cromico
BR9102301A (pt) Processo para a recuperacao de acido citrico
BR9007734A (pt) Processo para a obtencao de alquil-polietoxietersulfatos
BR8707412A (pt) Processo para a producao de ester correspondente
BR9001503A (pt) Processo para a preparacao de alquil-halogenossilanos
BR9001593A (pt) Processo para a obtencao de dicromatos alcalinos e/ou acido cromico atraves de eletrolise
BR8504970A (pt) Processo para a producao de ureia
BR9004428A (pt) Processo para a obtencao de alquilhalogenossilanos
PT90353A (pt) Processo para a producao de polipeptideos
BR8701512A (pt) Processo para a preparacao de betume
BR9002408A (pt) Processo para a producao de poliarilatos
BR9002162A (pt) Processo para a obtencao de poliisocianatos
BR8704513A (pt) Processo para a producao de acido trimetilico
PT94890A (pt) Processo para a preparacao de compostos azofenilicos
BR9007035A (pt) Processo para a producao de alcoois de guerbet
PT94889A (pt) Processo para a preparacao de compostos azofenilicos

Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 14/12/2010