Abstract: Unsaturated compounds are separated from liquid hydrocarbon mixtures by adsorbing the unsaturated compounds on a macroporous cation exchange resin and desorbing the unsaturated compounds with a mononuclear aromatic compound.

Abstract: Method of low-loss thermal energy storage in and withdrawal from a heat accumulator connected with an energy source and a heat consumer in a circulatory system through which a heat-carrying flow medium circulates which includes passing the flow medium through the energy source so as to withdraw thermal energy from the energy source and effect absorption of the thermal energy by the flow medium, guiding the flow medium in respective layers within the heat accumulator in a direction from the center of the heat accumulator toward the periphery thereof so as to store the thermal energy in a heat storage mass disposed in the heat accumulator; and guiding the flow medium in the layers thereof through the heat accumulator in a direction from the periphery of the heat accumulator to the center thereof, and passing the flow medium from the heat accumulator through the consumer so as to withdraw thermal energy therefrom and transfer it to the consumer; and apparatus therefor.

Abstract: Unsaturated hydrocarbons are separated from liquid mixtures containing same by adsorbing the unsaturated compound using a metal-loaded macroporous exchange resin and desorbing the unsaturated compound using a normally gaseous hydrocarbon.

Abstract: Aromatic compounds can be separated from slack wax in a continuous cyclic process using a macroporous metal ion loaded cation exchange resin involving successive steps of adsorption, purge, desorption and purge.