Abstract:
The present disclosure is directed to methods and compositions for enhancing tall oil soap recovery during the concentration of a black liquor derived from kraft or sulfate pulping processes. The methods basically provide for the addition to the black liquor of an effective amount of a polyoxypropylene polyoxyethylene condensate, or a composition containing said condensate.
Abstract:
The present disclosure is directed to methods and compositions for enhancing tall oil soap recovery during the concentration of a black liquor derived from kraft or sulfate pulping processes. The methods basically provide for the addition to the black liquor of an effective amount of compositions comprising combinations of a water-insoluble organic liquid, an ester of a polyethylene glycol, a petroleum sulfonic acid, a tallow fatty acid and/or tallow fatty alcohol, and a product derived by the esterification of an ethoxylated (5-40) moles sugar alcohol with an unsaturated C14-C20 fatty acid, or mixtures thereof optionally but beneficially a lower alkanol solubilizing agent.