Wax separation process

Details Wax separation process Wax separation process

1978-09-29

1980-06-03

Levine, Herbert

Mineral oils: processes and products

Paraffin wax; treatment or recovery

Separation of paraffin from oil

208 38, 210496, C10G 4308

Patent

active

042060346

ABSTRACT:
Particles of solid wax are separated from a slurry comprising said wax particles and a hydrocarbon oil by filtering the slurry through a cloth filter medium. It has been found that using, as the filter medium, a needled-felt cloth fabricated from fibers fusible by means of an open flame and having a singed surface on which the wax is collected results in an unexpected reduction in filter cloth blinding thereby yielding up to 30% increased throughput through the filter cloth and greatly reducing the frequency of washing the filter cloth. The cloth is further characterized in that it has a permeability to air in excess of about 3 cubic feet per minute per square foot of cloth surface at a differential pressure of 0.5 inches of water, a root mean square surface roughness in excess of 500 rms microinches and a fouling factor in excess of about 75%. This improved process has been found to be particularly useful for separating wax particles from a dewaxed lube oil slurry.

REFERENCES:
patent: 2244412 (1941-06-01), Anne et al.
patent: 2592490 (1952-04-01), Thompson
patent: 3002915 (1961-10-01), Royder
patent: 3731815 (1973-05-01), Collingwood et al.

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