A process for the sequential pores selective extraction of soluble organic material from rock pores of different size and of different type

摘要

The present invention relates to a process for the sequential pores selective extraction of soluble organic material from rock pores of different size and different type.According to the invention, a process for the extraction of soluble organic material from rock pores of a rock with micropores, and macropores totporen made available, in which that the rock in a first process step to a grain size fraction of 0,63 mm – 2,0 mm crushed and screened and subsequently with an organic solvent is extracted,the extracted particle size fraction in a second process step with an azeotropic mixture of 30% methanol, 38% acetone and 32% chloroform is extracted and that the rock of this fraction in a third step to a grain size of 40 μm is comminuted and thus the rock fraction with an azeotropic mixture of 30% methanol, 38% acetone and 32% chloroform is extracted.