Recovery of potential energy and chromium values from leather ta

Details Recovery of potential energy and chromium values from leather ta Recovery of potential energy and chromium values from leather ta

1981-02-03

1982-06-01

Carter, Herbert T.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

423607, 423 53, 423 57, C01G 3708

Patent

active

043325840

ABSTRACT:
A method of recovering chromium values and potential energy from liquid and solid leather tannery wastes comprising pyrolyzing the tannery wastes to produce a burnable fuel product comprising gases and liquids and a substantially solid chromium-containing residue, recovering chromium compounds from the solid residue and using the fuel to supply energy for the system.

REFERENCES:
patent: 4086319 (1978-04-01), Jones
patent: 4215989 (1980-08-01), Cartier
Olsen, "Unit Processes & Principles of Chemical Engineering", Van Nostrand Co., N.Y. 1932, pp. 1-3.

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