| 20100317747 | Medium oil used for a synthesis reaction, process for preparing dimethyl ether and process for preparing a mixture of dimethyl ether and methanol - A medium oil to be used for a synthesis reaction in a slurry-bed reaction procedure. The medium oil has as a main component, a branched, saturated aliphatic hydrocarbon having 16 to 50 carbon atoms, 1 to 7 tertiary carbon atoms, 0 quaternary carbon atoms, and 1 to 16 carbon atoms in the branched chains bonded to the tertiary carbon atoms; and at least one of the tertiary carbon atoms is bonded to hydrocarbon chains with a chain length having 4 or more carbon atoms in three directions. | 12-16-2010 |