PROCEDURE DETERMINING CONTENT OF SULFUR IN OIL PRODUCTS BY CORROSION OF COPPER PLATE Russian patent published in 2003 - IPC

FIELD: analytical equipment, determination of content of detrimental impurities, specifically sulfur, in oil products. SUBSTANCE: procedure consists in preparation of copper plate for procedure that includes polishing of its working surface, washing and drying, treatment of copper plate by analyzed oil product in the course of fixed time period at constant temperature and in determination of treatment results. Copper plate after preparation to process is fixed in horizontal plane with working surface upwards and is heated to constant temperature equal to temperature of start of refining of analyzed oil product. Plate is treated by application of sample of analyzed oil product of constant volume to its working surface and then sample is evaporation by air stream with constant parameters with subsequent cooling to room temperature. Treatment result of working surface of copper plate is determined by measurement of electric potential of this surface. Value of potential is used to evaluate content of sulfur in oil products. EFFECT: avoidance of subjective errors of determination of sulfur in oil products by corrosion of copper plate, enhanced accuracy of determination and speed of analysis. 2 cl, 3 dwg