Method for producing high-purity metallic chromium

Details Method for producing high-purity metallic chromium Method for producing high-purity metallic chromium

1990-10-25

1992-03-03

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75959, C22B 3432

Patent

active

050929216

ABSTRACT:
High-purity metallic chromium is produced by a method of initially preparing a mixture of chromium oxide, aluminum, carbon and an easily sulfidable metallic powder, and subsequently providing a thermite-reaction with the mixture to produce thermite-crude metallic chromium and a solid solution of carbon and easily sulfidable metal. Residual impurities in the thermite-crude metallic chromium are subsequently removed by heat treating the crude metallic chromium. This method produces high-purity metallic chromium advantageous for preparing corrosion and heat resistant chromium-containing alloys.

REFERENCES:
patent: 4331475 (1982-05-01), Perfect
patent: 4504310 (1985-03-01), Boulier

Affiliated with

Also associated with

Rating

Method for producing high-purity metallic chromium does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for producing high-purity metallic chromium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing high-purity metallic chromium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-269626