208 / | HD | MINERAL OILS: PROCESSES AND PRODUCTS |
46 | DF | CHEMICAL CONVERSION OF HYDROCARBONS {11} |
146 | DF | .~ Solids contacting and mixing {8} |
153 | DF | .~.~ Suspension system {7} |
161 | DF | .~.~.~ Separation of entrained fines from effluents {1} |
162 | .~.~.~.~ In presence of a liquid |