FIELD: chemistry.
SUBSTANCE: invention can be used in chemical industry when producing diene polymerisation catalysts. Aqueous chloride of a rare-earth element is mixed with monoatomic alcohol in molar ratio alcohol: rare-earth element equal to (100-200):1. The azeotropic mixture is distilled at normal pressure, followed by distillation of excess alcohol in the presence of paraffin with initial boiling point of 220-270°C in a rotary film evaporator. The ready product is a stable mobile dispersion of a solvate of a chloride of a rare-earth element in liquid paraffin.
EFFECT: invention simplifies the process, cuts the duration of the process and enables to obtain a highly active diene polymerisation catalyst.
10 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING ALCOHOL SOLVATE OF NEODYMIUM CHLORIDE | 2002 |
|
RU2220909C2 |
| METHOD FOR PRODUCTION OF ALCOHOL SOLVATES OF RARE-EARTH ELEMENT CHLORIDES | 1992 |
|
RU2039706C1 |
| METHOD OF OBTAINING SOLVATE OF NEODYMIUM CHLORIDE WITH ISOPROPYL ALCOHOL FOR NEODYMIUM CATALYST OF ISOPRENE POLYMERISATION | 2012 |
|
RU2526981C2 |
| ISOPRENE RUBBER AND METHOD OF PRODUCING SAID RUBBER | 2008 |
|
RU2374271C1 |
| METHOD FOR OBTAINING A CATALYST FOR ISOPRENE POLYMERIZATION | 2018 |
|
RU2684280C1 |
| METHOD OF OBTAINING ALCOHOL SOLVATE OF NEODYMIUM CHLORIDE | 2011 |
|
RU2468995C1 |
| METHOD OF OBTAINING DIALKYLPHOSPHATES OF RARE-EARTH ELEMENTS- COMPONENTS OF CONJUGATED DIENE (CO) | 2007 |
|
RU2352585C1 |
| METHOD OF PRODUCING BUTADIENE POLYMERISATION CATALYST | 2018 |
|
RU2684282C1 |
| METHOD OF PRODUCING POLYMERS AND COPOLYMERS OF CONJUGATED DIENES (VERSIONS) | 2009 |
|
RU2422468C1 |
| METHOD OF PRODUCING CATALYST FOR COPOLYMERISATION OF BUTADIENE WITH ISOPRENE | 2018 |
|
RU2684279C1 |
