HUT59966A - Poison-free blue chromating process - Google Patents

Poison-free blue chromating process

Info

Publication number
HUT59966A
HUT59966A HU630490A HU630490A HUT59966A HU T59966 A HUT59966 A HU T59966A HU 630490 A HU630490 A HU 630490A HU 630490 A HU630490 A HU 630490A HU T59966 A HUT59966 A HU T59966A
Authority
HU
Hungary
Prior art keywords
poison
free blue
chromating process
blue chromating
compound
Prior art date
Application number
HU630490A
Other languages
Hungarian (hu)
Other versions
HU906304D0 (en
Inventor
Bela Hamarics
Istvanne Gyoeri
Original Assignee
Bela Hamarics
Istvanne Gyoeri
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 Bela Hamarics, Istvanne Gyoeri filed Critical Bela Hamarics
Priority to HU630490A priority Critical patent/HUT59966A/en
Publication of HU906304D0 publication Critical patent/HU906304D0/en
Publication of HUT59966A publication Critical patent/HUT59966A/en

Links

Abstract

An aqueous soln. of a chromium hexa-hydrate compound is heated to 50-90 deg.C for 15-75 min. producing a compound of general formula (Cr/III(CH2O)sHXO4)XO4, where X = As, P, S, Cr. The product is diluted, pH is adjusted to 1.2-2.5. The chromatisation is carried out at 20 - 40 deg.C and a pressure of 20-120 mP
HU630490A 1990-10-02 1990-10-02 Poison-free blue chromating process HUT59966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HU630490A HUT59966A (en) 1990-10-02 1990-10-02 Poison-free blue chromating process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU630490A HUT59966A (en) 1990-10-02 1990-10-02 Poison-free blue chromating process

Publications (2)

Publication Number Publication Date
HU906304D0 HU906304D0 (en) 1991-04-29
HUT59966A true HUT59966A (en) 1992-07-28

Family

ID=10971448

Family Applications (1)

Application Number Title Priority Date Filing Date
HU630490A HUT59966A (en) 1990-10-02 1990-10-02 Poison-free blue chromating process

Country Status (1)

Country Link
HU (1) HUT59966A (en)

Also Published As

Publication number Publication date
HU906304D0 (en) 1991-04-29

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Legal Events

Date Code Title Description
DFD9 Temporary prot. cancelled due to non-payment of fee