METHOD OF PROCESSING OF SOLID WASTES OR SLIMES Russian patent published in 2004 - IPC

FIELD: processing of industrial wastes of petrochemical productions; production of polyethers. SUBSTANCE: the invention is dealt with processing of industrial wastes of petrochemical productions, in particular, to a waste processing of production of polyethers, and intended for processing of a slime in the raw material, which may be used, for example, as a mineral fertilizer, as well as in production of urethane sealers, etc. The method provides for treatment of solid wastes or slimes with an extracting agent, consequent separation of the mixture for a fluid fraction and solid faction and separation of the extracting agent from the liquid faction. In the capacity of the solid waste or slimes they use the waste products of production of polyethers, in the capacity of the extracting agent methylene chloride. The solid and fluid factions are used as the finished products. After the separation stage the extracting agent is returned to the stage of treatment of the solid wastes or slimes for usage. Technical result - development of a method of processing polyethers production wastes, that allows to extract an additional quantity of the target product and to use the wastes earlier removed to a slime dump as the secondary raw material or as a finished product. EFFECT: the invention allows to process polyethers production wastes, to extract an additional quantity of the target product, to use the wastes earlier removed to a slime dump as the secondary raw material or as a finished product. 2 cl, 1 dwg, 4 ex