FIELD: industrial inorganic synthesis. SUBSTANCE: anhydrous chromium trichloride is purified from chromium dichloride impurities at 890-980 C in chlorohydrocarbon or chlorocarbon flow, while removing gaseous reaction products. EFFECT: increased degree of purification and improved environmental condition. 1 tbl
Title | Year | Author | Number |
---|---|---|---|
ANHYDROUS CHROMIUM TRICHLORIDE PRODUCTION PROCESS | 1999 |
|
RU2158226C1 |
LOW-PRESSURE POLYETHYLENE PRODUCTION PROCESS | 2005 |
|
RU2289591C1 |
METHOD OF SYNTHESIS OF LOW PRESSURE POLYETHYLENE | 2001 |
|
RU2177954C1 |
METHOD OF CLEANING CONDENSATE OF PYROLYSIS PROCESS DILUTION STEAM | 2001 |
|
RU2185340C1 |
METHOD OF PREPARING MIXTURES OF CIS-AND TRANS-POLYMERS OF CONJUGATED DIENES | 1997 |
|
RU2129566C1 |
METHOD OF PREPARING LINEAR AVERAGE DENSITY POLYETHYLENE | 1997 |
|
RU2129565C1 |
METHOD OF PREPARING POLYETHYLENE | 2000 |
|
RU2177007C1 |
METHOD OF ALKALI PURIFICATION OF PYROLYSIS GASES | 2001 |
|
RU2199374C1 |
METHOD OF PRODUCTION OF POLYETHYLENE | 2000 |
|
RU2176249C1 |
CHROMIUM-OXIDE ETHYLENE (CO)POLYMERIZATION CATALYST AND METHOD OF PREPARATION THEREOF | 2001 |
|
RU2180340C1 |
Authors
Dates
2000-10-27—Published
1999-06-23—Filed