发明名称 |
PROCESS FOR PRODUCTION OF DIALKYL PHOSPHATE ESTER RARE-EARTH SALT OR DIOLEYL PHOSPHATE ESTER RARE-EARTH SALT OF |
摘要 |
There is provided a method of producing a rare earth salt of a dialkyl phosphate or a rare earth salt of dioleyl phosphate of a high purity useful as a polymerization catalyst of a conjugated diene compound by directly reacting a rare earth oxide or a rare earth hydroxide with a dialkyl phosphate or dioleyl phosphate of a high purity. In the invention, the rare earth oxide or rare earth hydroxide is reacted with the dialkyl phosphate or dioleyl phosphate of a high purity in a non-polar solvent in the presence of at least one compound selected from a halogenated hydroacid, phosphorous acid and a rare earth halide made from the same element as in an objective product as a catalyst. |
申请公布号 |
EP2213677(A4) |
申请公布日期 |
2012.01.04 |
申请号 |
EP20080840734 |
申请日期 |
2008.10.15 |
申请人 |
BRIDGESTONE CORPORATION |
发明人 |
OZAWA, YOICHI;SUZUKI, HIDEAKI |
分类号 |
C07F9/09;C07B61/00;C07F9/11;C07F9/113;C08F4/52 |
主分类号 |
C07F9/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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