Settling aids for solids in hydrocarbons

Details Settling aids for solids in hydrocarbons Settling aids for solids in hydrocarbons

2006-05-23

2006-05-23

Nguyen, Tam M. (Department: 1764)

Mineral oils: processes and products

Refining

Metal contaminant removal

C208S290000, C585S833000, C585S860000, C585S862000, C585S864000, C585S866000

Reexamination Certificate

active

07048847

ABSTRACT:
A treatment for accelerating the settling of finely divided solids in hydrocarbon fluids, including adding to the hydrocarbon a sufficient settling amount of a combination of (a) a polyacrylic acid adducted alkylphenol-formaldehyde resin alkoxylate compound, and (b) an alkylphenol-formaldehyde resin alkoxylate having a molecular weight of about 500 to about 5,000.

REFERENCES:
patent: 5366637 (1994-11-01), Turunc
patent: 5474713 (1995-12-01), Faber
patent: 5476988 (1995-12-01), Hart et al.
patent: 5481059 (1996-01-01), Brock et al.
patent: 5593572 (1997-01-01), Hart
patent: 5681451 (1997-10-01), Hart
patent: 6030467 (2000-02-01), Leser et al.

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