发明名称 |
PROCESS FOR THE PREPARATION OF 3,3- OR 2,3-DIMETHYL BUTENE AND 2,3- DIMETHYL BUTADIENE OR FOR THE SIMULTANEOUS PREPARATION OF THESE OLEFINS AND GLYCOL OR POLYGLYCOL-N-ALKYL-3,3- OR 2,3-DIMETHYL BUTYL ETHER FROM MONO- AND DICHLORO-DIMETHYL BUTANE |