ES445137A1 - Procedimiento para la obtencion de un pigmento verde de oxi-do de cromo. - Google Patents

Procedimiento para la obtencion de un pigmento verde de oxi-do de cromo.

Info

Publication number
ES445137A1
ES445137A1 ES445137A ES445137A ES445137A1 ES 445137 A1 ES445137 A1 ES 445137A1 ES 445137 A ES445137 A ES 445137A ES 445137 A ES445137 A ES 445137A ES 445137 A1 ES445137 A1 ES 445137A1
Authority
ES
Spain
Prior art keywords
ammonium salt
pigment
heating
chromium oxide
mixture
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
ES445137A
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
Priority claimed from DE19752530565 external-priority patent/DE2530565C3/de
Application filed by Bayer AG filed Critical Bayer AG
Publication of ES445137A1 publication Critical patent/ES445137A1/es
Expired legal-status Critical Current

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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
ES445137A 1975-07-09 1976-02-13 Procedimiento para la obtencion de un pigmento verde de oxi-do de cromo. Expired ES445137A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752530565 DE2530565C3 (de) 1975-07-09 Verfahren zur Herstellung von Chromoxidgrün

Publications (1)

Publication Number Publication Date
ES445137A1 true ES445137A1 (es) 1977-05-16

Family

ID=5951021

Family Applications (1)

Application Number Title Priority Date Filing Date
ES445137A Expired ES445137A1 (es) 1975-07-09 1976-02-13 Procedimiento para la obtencion de un pigmento verde de oxi-do de cromo.

Country Status (7)

Country Link
US (1) US4040860A (es)
JP (1) JPS528999A (es)
BR (1) BR7600926A (es)
ES (1) ES445137A1 (es)
FR (1) FR2317340A1 (es)
GB (1) GB1522051A (es)
ZA (1) ZA76851B (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2635086C3 (de) * 1976-08-04 1980-11-06 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von schwefelarmen Chrom(III)oxid
US4230677A (en) * 1978-11-30 1980-10-28 Union Carbide Corporation Recovery of Cr2 O3 from a chromium bearing solution
NL7900261A (nl) * 1978-01-17 1979-07-19 British Chrome Chemicals Ltd Bereiding van chroomoxide.
US4296076A (en) * 1979-01-15 1981-10-20 British Chrome & Chemicals Ltd. Chromic oxide production
DE3609971A1 (de) * 1986-03-25 1987-10-01 Basf Ag Verfahren zur herstellung von chrom(iii)oxid, eine vorrichtung zur durchfuehrung des verfahrens sowie die verwendung des chrom(iii)oxids als ausgangsmaterial fuer die chromdioxid-synthese
DE3736994A1 (de) * 1987-10-31 1989-05-11 Bayer Ag Chromoxidgruen, verfahren zu seiner herstellung und dessen verwendung
DE3819779A1 (de) * 1988-06-10 1989-12-21 Bayer Ag Verbessertes chromoxidgruen, verfahren zu seiner herstellung und dessen verwendung
JP3031688B2 (ja) * 1990-07-05 2000-04-10 三井化学株式会社 触媒活性の安定化方法
DE4110880C1 (es) * 1991-04-04 1992-12-03 Bayer Ag, 5090 Leverkusen, De
MD3296G2 (ro) * 2006-06-21 2007-11-30 Государственный Университет Молд0 Procedeu de obţinere a pigmentului verde, opac, foto- şi termorezistent
CN104445408A (zh) * 2013-09-12 2015-03-25 中国科学院过程工程研究所 一种黄绿色调氧化铬绿颜料的制备方法
CN112142108B (zh) * 2019-06-28 2023-01-10 湖北振华化学股份有限公司 一种重铬酸铵和硫酸钠混合晶体及其制备方法和用途

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1429912A (en) * 1921-11-05 1922-09-19 D Adrian Alexander L Duval Process of making green chrome oxide
US2156451A (en) * 1935-08-02 1939-05-02 Siegle & Co G M B H G Chromium hydroxide green
DE728233C (de) * 1940-04-03 1942-11-23 Silesia Ver Chemischer Fabrike Herstellung von Chromoxydgruen
US3278261A (en) * 1965-12-07 1966-10-11 Pittsburgh Plate Glass Co Preparation of dense chromic oxide

Also Published As

Publication number Publication date
DE2530565A1 (de) 1977-01-13
JPS528999A (en) 1977-01-24
ZA76851B (en) 1977-01-26
GB1522051A (en) 1978-08-23
US4040860A (en) 1977-08-09
FR2317340A1 (fr) 1977-02-04
DE2530565B2 (de) 1977-07-07
FR2317340B3 (es) 1978-11-03
BR7600926A (pt) 1977-05-10

Similar Documents

Publication Publication Date Title
ES445137A1 (es) Procedimiento para la obtencion de un pigmento verde de oxi-do de cromo.
ES445136A1 (es) Procedimiento para la obtencion de un pigmento verde de oxi-do de cromo.
DE4110880C1 (es)
US2357096A (en) Transparent iron oxide pigments
CN105670345A (zh) 一种阻燃耐中温氧化铁黄颜料的制备方法
GB1530740A (en) Process for the preparation of iron oxide based thermostable pigments from acid solutions containing ferrous sulphate
US2105670A (en) Manufacture of iron oxide products
ES444030A1 (es) Procedimiento para la preparacion de un pigmento a base de oxido de hierro que se presenta en forma de fe2o3, alja.
US2643196A (en) Process for preparing pure cadmium red pigment
US2379019A (en) Preparation of pigmentary materials
JPS5232024A (en) Method for the preparation of pigment
US1894931A (en) Pigment and method of producing the same
GB1137330A (en) Improvements in or relating to molybdate red and molybdate orange pigments
US1782648A (en) Process of coloring slate granules
JPS5480295A (en) Production of chromium oxide
GB791090A (en) New cadmium sulphide yellow pigments
US2173128A (en) Process for improving the color of off-color cadmium red pigments
US2479636A (en) Production of cadmium red pigments
JPS5296638A (en) Paint for traffic
GB465912A (en) Improved process of producing pigmental colouring matter
JPS5235199A (en) Method for production of iron oxide for pigment
GB1175624A (en) A Process for the Production of Zirconium Silicate Pigments
GB1076918A (en) Zinc oxide compositions
JPS5229838A (en) Method for manufacturing a fire- retardant synthetic resin containing surface-treated dowsonite as fillers
JPS523629A (en) Preparation of iomproved quinophthalone pigments