Recovery of phosphorus from sludge

Details Recovery of phosphorus from sludge Recovery of phosphorus from sludge

1977-04-11

1980-05-27

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

204128, 204130, 204149, C25B 100

Patent

active

042049253

ABSTRACT:
A process for recovering elemental phosphorus from sludge formed during the production of phosphorus by the smelting of phosphate rock which comprises subjecting the phosphate sludge to electrolysis, thereby facilitating removal of the elemental phosphorus from the sludge.

REFERENCES:
patent: 744171 (1903-11-01), Davis et al.
patent: 3113839 (1963-12-01), Barber et al.
patent: 3442621 (1969-05-01), Hinkebein
patent: 3830039 (1974-08-01), Ebert et al.
patent: 3933606 (1976-01-01), Harms
patent: 4053378 (1977-10-01), Moeglich et al.
"Electrical Props of Colloidal Dispersions," Gen. Chem. by H. H. Sisler et al., 1949, pp. 385-386.
Encyclopedia of Chem. Technology by Kirk-Othmer, 2nd ed., vol. 8, 1966, p. 152.
Inorganic Chem. by P. C. L. Thorne et al., 6th ed., 1958, p. 112.

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