Abstract: The subject of the invention is the method of obtaining liquid fuels from polyolefine wastes. According to the method, properly disintegrated polyolefines in an amount of 100 parts y weight are heated in the temperatures between 300° C. to 450° C. till the moment of a decay of volatile product forming, in the presence of heavy metals silicates as catalysts, added in amounts of 1-30 parts by weight. As catalyst, the silicates of iron Fe3+, cobalt Co2+, nickel Ni2+, manganium Mn2+, chromium Cr3+, copper Cu2+, zinc Zn2+, cadmium Cd2+ and/or their mixtures are used. The catalyst is applied in an amorphic form in an amount from 5 to 10 % by weight, calculated on the mass of the raw material. The catalyst is recycled and used multiply. A process is run in a continous way.

Abstract: A subject of the invention is the method of recovery of terephthalic acid and ethylene glycol from poly/ethylene terephthalate/wastes. According to the invention poly/ethylene terephthalate/ is heated in an aqueous solution at the temperature from 150° C. to 280° C. with a reagent substance, chosen from the group, comprising bicarbonates of ammonia and alkali metals, ammonium carbamate and urea, which substances are used in amounts not less than a stoechiometric amount.

Abstract: The invention concerns a lubricant based on silicone oils or silicone greases and is characterized in that it comprises between 95 and 99 wt % silicone oil or silicone grease and between 1 and 5 wt % organic compounds from the group comprising trichloromethyl compounds having at least one oxygen atom in the sp.sup.3 configuration.