Abstract: Process for preparation powder coating formulations by pressure release of a composition comprising a low molecular mass inert compound, with release of the low molecular mass inert compound, in which process one or more base resins and one or more hardeners for the base resins, or one or more self-curing base resins, and, if desired, further customary coatings components, are converted together or separately into a flowable form by heating, the low molecular mass inert compound is dissolved under pressure at least in one of the base resin or hardener components employed, either before these components are combined with the other components or in the already prepared mixture, the overall mixture is homogenized, and then the mixture of all components is released from pressure, with cooling.

Abstract: A process for recovering lecithin from oil- and lecithin-containing mixtures, comprising extracting a lecithin/oil mixture with an extractant selected from the group consisting of a hydrocarbon having 3 carbon atoms, an unbranched hydrocarbon having 4 carbon atoms, a branched hydrocarbon having 4 carbon atoms, and mixtures thereof, at a pressure of from 1 to 8 MPa and a temperature of from 20 to 100.degree. C., which conditions ensure liquid phase extraction with the development of two liquid phases, one of which is an oil enriched liquid hydrocarbon phase and the other of which is a lecithin enriched hydrocarbon phase; separating the two liquid hydrocarbon phases; and recovering substantially lecithin-free oil from the oil-enriched phase and substantially oil-free, pure lecithin from the lecithin-enriched phase.

Abstract: Described is a process for removing glycerol and/or diglycerol from glycerides and glyceride mixtures by extraction, which process is characterized in that the glyceride or glyceride mixture is dissolved in organic compounds which preferably contain carbonyl and hydroxyl groups, if desired in combination with hydrocarbons, and that glycerol is extracted from the resulting solution with the aid of water. Thereby glycerol concentrations in the material to be purified of 0.1 weight % or lower may be obtained in a simple manner.