公开(公告)号：US3607963A

公开(公告)日：1971-09-21

申请号：US3607963D

申请日：1969-02-10

Applicant: BASF AG

Inventor： DANNEIL AXEL ,  NAGEL OTTO ,  PLATZ ROLF ,  TAGLIEBER KURT

IPC: C07C7/00 ,  F25J3/02 ,  F25J3/08 ,  F25J3/06

CPC classification number: F25J3/0238 ,  C07C7/005 ,  F25J3/0219 ,  F25J3/0271 ,  F25J2200/74 ,  F25J2205/04 ,  F25J2205/50 ,  F25J2210/12 ,  F25J2215/62 ,  F25J2245/02 ,  F25J2270/04

Abstract: Joint separation of acetylene and ethylene from cracked gas, obtained by submerged-flame methods, by condensing the hydrocarbons in one or more stages by cooling to a temperature above the solidification temperature of acetylene in admixture with the other condensable constituents, separating the condensate, washing the residual gas mixture with liquid ethylene and/or ethane, and further cooling the gas mixture free from acetylene to -140* to -170* C.

公开(公告)号：US3564018A

公开(公告)日：1971-02-16

申请号：US3564018D

申请日：1969-01-14

Applicant: BASF AG

Inventor： DOCKNER TONI ,  PLATZ ROLF

IPC: C07C51/235 ,  C07D7/06 ,  C07C51/24 ,  C07D9/00

CPC classification number: C07C51/235 ,  C07C53/124

Abstract: AN IMPROVED PROCESS FOR THE PRODUCTION OF LACTONES HAVING SIX TO THIRTEEN RING MEMBERS AND ISOBUTYRIC ACID BY REACTION OF A CYCLIC KETONE HAVING FROM FIVE TO TWELVE RING MEMBERS AND ISOBUTYRIC ACID BY REACTION OF A CYCLIC KETONE HAVING FROM FIVE TO TWELVE RING MEMBERS AND ISOBUTYRALDEHYDE WITH MOLECULAR OXYGEN OR A GAS CONTAINING THE SAME, THE IMPROVEMENT CONSISTING IN CARRYING OUT THE REACTION WITHOUT USING A CATALYST. LACTONES ARE USED IN THE PRODUCTION OF POLYESTOR.