Process for dispersing a fluid in a mass of solid particles

摘要

A fluid is dispersed in a mass of solid particles in a process wherein a) a gas is contacted with a fluid composition comprising i) from 0.001 to 30 weight percent of a surfactant having a weight average molecular weight of up to 30000 and ii) from 99.999 to 70 weight percent of a liquid diluent, based on the total weight of the surfactant i) and the liquid diluent ii), and b) the produced foam is contacted with solid particles of an average size of less than 2500 micrometers, wherein a therapeutic agent is comprised in the fluid composition or in the mass of solid particles or both.