Process for the recovery of solvents in the treatment of textile

Details Process for the recovery of solvents in the treatment of textile Process for the recovery of solvents in the treatment of textile

1984-06-28

1986-04-22

Wax, Robert A.

Bleaching and dyeing; fluid treatment and chemical modification

Cleaning or laundering

Removing formation impurities from artifical fiber

8141, 8142, 34 10, 34 11, 34 12, 502 34, 502416, D06L 100

Patent

active

045839859

ABSTRACT:
In this process the organic solvents which are obtained in a liquid state in the drying phase are pumped away. The solvents present in the form of a solvent vapor/air mixture are partially condensed by cooling and the fractions of solvent still remaining in vapor form are adsorbed by active charcoal. These adsorbed solvents are recovered by setting up a saturation partial pressure of the solvent in the solvent vapor/air mixture of not more than 0.25 bar. The fractions of solvent adsorbed in the active charcoal are desorbed by means of a solvent vapor/air mixture of the same concentration as in the adsorption process and at temperatures of approx. 100.degree. to 150.degree. C.

REFERENCES:
patent: 2910137 (1959-10-01), Victor
patent: 3070463 (1962-12-01), Barday
patent: 3807948 (1974-04-01), Moore

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