Process for making agents for desulfurizing crude iron or steel

Details Process for making agents for desulfurizing crude iron or steel Process for making agents for desulfurizing crude iron or steel

1982-03-18

1983-08-23

Gluck, Irwin

Compositions

Co, s, negative element, or acid, bindant containing

75 6, 75 55, C01B 3132, C21C 102

Patent

active

044002920

ABSTRACT:
The disclosure relates to a process for the manufacture of desulfurizing agents containing 1-6 weight % chemically combined water, based on calcium oxide and carbon-containing calcium carbide, for crude iron and steel melts. More particularly, the disclosure provides for a molten mixture of calcium carbide and calcium oxide containing 20 to 80 weight % CaO to be made from lime and coke; for the mixture to be allowed to cool and solidify into a block; for the solidified block while it still has an average temperature of more than 400.degree. C. to be crushed to particles with a size of less than 150 mm; for the comminuted mixture, which still has a temperature of at least 400.degree. C. to be admixed with a quantity of calcium oxide necessary to establish in the resulting mixture a total content of CaO corresponding to the CaO content desired in the end product; and for the mixture to be gound while intensively mixing it with free carbon and carbonate in the presence of air or nitrogen with a moisture content of 5 to 20 g/m.sup.3 (at 1.013 bar and 273.15 K.) at temperatures below 100.degree. C. to particles with a size of less than 10 mm.

REFERENCES:
patent: 3192037 (1965-06-01), Haucke et al.
patent: 3473917 (1969-10-01), Michaelis
patent: 3884679 (1975-05-01), Mittoldorf
patent: 4054445 (1977-10-01), Ramacciotti
patent: 4194902 (1980-03-01), Gmohling
patent: 4318822 (1982-03-01), Braun et al.

Affiliated with

Also associated with

Rating

Process for making agents for desulfurizing crude iron or steel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for making agents for desulfurizing crude iron or steel , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making agents for desulfurizing crude iron or steel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1946653