Settling aids for solids in hydrocarbons

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

2007-04-17

2007-04-17

Nguyen, Tam M. (Department: 1764)

Mineral oils: processes and products

Refining

Metal contaminant removal

C585S833000, C585S860000, C585S862000, C585S864000, C585S866000

Reexamination Certificate

active

10289875

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 at least two of (a) a quaternary fatty ammonium compound, (b) a hetero-atom punctuated fatty polymer and (c) an alkylphenol-formaldehyde resin alkoxylate.

REFERENCES:
patent: 5476988 (1995-12-01), Hart et al.
patent: 5593572 (1997-01-01), Hart
patent: 5681451 (1997-10-01), Hart

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