Patent ID: 9388343
Filing Date: 2016-07-12
CPC Classification: B08B,B09C,C02F,C05D,C05F,C05G,C07C,C09C,C09K,C10G,C11D,Y02E,Y02T,Y02W

Claim Text:
1. A method for precipitating fines contained in a vessel further containing a hydrocarbon-containing material and an aqueous composition, comprising acidifying the contents of the vessel to a pH of about 4.6 or less, wherein the aqueous composition comprises: 0% to about 10 wt % of an alcohol; about 0.5 wt % to about 15 wt % of a base; 0% to about 10 wt % of a salt; 0% to about 10 wt % of an acid; 0% to about 10 wt % of an additive; about 10 wt % to about 95 wt % of water; and a mixture obtained by (a) allowing water, plant material and an inorganic base to (i) stir at about 10° C. to about 100° C. for about 2 hours to about 4 hours or (ii) stand at about 10° C. to about 100° C. for about 10 minutes to about 8 hours, and (b) removing undissolved solids from the mixture; wherein the aqueous composition has a pH of about 13, the amount of plant material is from about 1 wt % to about 50 wt % of the aqueous composition; and the plant material is hemp seed, soybean, or combinations thereof.