Recovering carbon black from waste rubber

Details Recovering carbon black from waste rubber Recovering carbon black from waste rubber

1975-01-30

1976-08-31

Stern, Edward

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

423449, 423109, C01B 3102, C09C 148

Patent

active

039781992

ABSTRACT:
Carbon black is recovered from vulcanized waste rubber such as automobile tires or other articles by reacting pieces of the rubber with an aromatic oil solvent in a stirred reactor at 500.degree.-700.degree.F temperature and about 25-100 psig pressure for 0.5-2 hours residence time. The resulting solids-liquid mixture is processed to remove solids, and the resulting solid product is then dried, screened and chemically treated to recover the carbon black in dry powder form. The remaining solvent oil is also recovered and a portion reused in the process.

REFERENCES:
patent: 1175732 (1916-03-01), Evans et al.
patent: 2149671 (1939-03-01), Franck et al.
patent: 2631982 (1953-03-01), Donegan
patent: 3148140 (1964-09-01), Kaiser et al.
patent: 3375188 (1968-03-01), Bloomer
patent: 3704108 (1972-11-01), Alpert
patent: 3808328 (1974-04-01), Kelly
patent: 3823224 (1974-07-01), Laman et al.
"General College Chem.," by Babur et al., 1940 Ed., pp. 66-68, Pub. by Thomas Y. Crowell Co., New York.

Affiliated with

Also associated with

Rating

Recovering carbon black from waste rubber does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recovering carbon black from waste rubber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovering carbon black from waste rubber will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1816240