Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1980-09-25
1982-05-25
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204300EC, 204180R, C25D 1304, C25D 1314, C25D 1316
Patent
active
043315259
ABSTRACT:
A process and apparatus for the recovery of suspended solids from a liquid medium is disclosed. The liquid medium containing suspended solids is circulated through an electrolytic cell and an ultrafiltration unit, the suspended solids being removed from the liquid medium as a uniform particulate mass of low liquid content while a proportionate amount of the liquid and dissolved components such as surfactants is removed through ultrafiltration to avoid a dilution of the liquid medium in a continuous process. The recovered solids, following evaporation of a small amount of remaining liquid, offers a more uniform particle size as well as substantially lower recovery costs when compared with conventional techniques, such as spray-drying, now used in the industry. The disclosed electrolytic-ultrafiltration process offers application to the treatment of industrial products and wastes (polymeric, e.g., PVC and PVC copolymers, rubber, paint, cellulose, paper sludge, food, etc.) and the recovery or concentrating of valuable materials from naturally occuring sources, e.g., whey protein.
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Huba Francis
Zorska Roman
Danison, Jr. Walter C.
Diamond Shamrock Corporation
Williams Howard S.
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