公开(公告)号：US3787509A

公开(公告)日：1974-01-22

申请号：US3787509D

申请日：1970-06-29

Applicant: DYNAMIT NOBEL AG

Inventor： RICHTZENHAIN H ,  STEPHAN R

IPC: C07C17/42 ,  C07C19/02

CPC classification number: C07C17/42 ,  C07C19/05

Abstract: THE STABILIZATION OF 1,1,1-TRICHLOROETHANE BY ADMIXING SUCH WITH 0.5 TO 10 WT. PERCENT OF A MIXTURE OF ACETONITRILE. 1.4-DIOXANE AND ETHYLENEDIAMINE.

公开(公告)号：US3745103A

公开(公告)日：1973-07-10

申请号：US3745103D

申请日：1971-05-03

Applicant: DYNAMIT NOBEL AG

Inventor： RICHTZENHAIN H ,  STEPHAN R

IPC: C07C17/10 ,  C07C19/05 ,  B01J1/10 ,  C07C17/06 ,  C07C17/38

CPC classification number: C07C17/10 ,  C07C19/05

Abstract: IMPROVEMENTS IN THE PHOTOCHLORINATION OF 1,1-DICHLOROETHANE TO 1,1,1-TRICHLOROETHANE IN THE GAS PHASE WHEREIN THE REACTION BETWEEN CHLORINE AND EXCESS DICHLOROETHANE IS CARRIED OUT IN AT LEAST TWO SERIES CONNECTED REACTORS EACH OF WHICH HAS AN ULTRAVIOLET LAMP THEREIN, WHICH IS COOLED TO BELOW THE REACTION TEMPERATURE, WHEREIN A QUENCH COLUMN IS DISPOSED BETWEEN EACH TWO REACTORS, WHEREIN THE VAPOR PRODUCT LEAVING THE LAST REACTOR IS CONDENSED IN THE CONDENSER AND THE CONDENSATE SUBJECTED TO DISTILLATION IN ORDER TO RECOVER DESIRED PRODUCT 1,1,1-TRICHLOROETHANE AND RECYCLE 1,1-DICHLOROETHANE.