СПОСІБ ОЧИЩЕННЯ ГОЛОВНОЇ ФРАКЦІЇ СИРОГО БЕНЗОЛУ КОКСОХІМІЧНОГО ВИРОБНИЦТВА ВІД СІРКОВУГЛЕЦЮ

摘要

The process is for purifying the head fraction of crude benzol from carbon sulphide by treatment by chemical reagents, mixing of reaction mass with further cooling. The methanolic solution of potassium hydroxide is added to the reaction mass and is intensively mixed for 10-30 min at a mole ratio of methanol:potassium hydroxide:carbon sulphide 2:1:1, then an equivalent amount of cations of certain 3d-metals is added to the reaction mass, it is intensively mixed at a temperature of 15-20 °C for 15-30 min and isolated from methylxanthogenate of 3d-metals of general formula [CHOC(=S)S]M/, where M = Cu, Zn.