Cleaning and liquid contact with solids – Processes – Oils – grease – tar – or wax removal – by dissolving
Patent
1993-05-21
1994-04-26
McCarthy, Neil M.
Cleaning and liquid contact with solids
Processes
Oils, grease, tar, or wax removal, by dissolving
134 2218, 134 2219, 134 251, 252352, 252356, 252135, B08B 304, B01F 1750, B01F 1754
Patent
active
053063511
ABSTRACT:
The composition and process of the present invention involves the use of a material at high pressure to dissolve, break up and move waste material, especially hydrocarbon based waste material, also known as fluidization. The composition is a dispersion fluid made from a dilute mixture of soy flour, lignin flour, citrus pectin, and sodium silicate. Additional components which may be added include sodium phosphate, soda ash, and a surfactant, non-ionic TRITON X100. The dispersion fluid is sprayed with high pressure, as needed, into the mass of material to be removed and then pumped out with the suction from a commercially available vacuum truck. A settling tank enables recirculation of the dispersion fluid to enable a recirculating process stream and to reduce the net amount of dispersion fluid utilized with a given amount of sludge to be removed.
REFERENCES:
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patent: 4233174 (1980-11-01), Sheridan
patent: 4469603 (1984-09-01), Lepain et al.
patent: 5091016 (1992-02-01), Krajicek et al.
patent: 5213625 (1993-05-01), Van Slyke
Union Carbide Chemicals and Plastics Co. Inc., Product Data Sheet, "Tritonx-100" Surfactant.
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