Tri:substd. ethylene prepn. from acetylenic cpds.

摘要

Proposed pipe comprises an inner pipe with a central rod and three divided plates at 120 deg C intervals, and an outer pipe. The space between the inner and outer pipes is divided into 6 equal parts by divider plates at 60 deg. intervals at 30 deg and 90 deg wrt 120 deg segments of the inner tube spaces