发明名称 |
Method of vapor phase polymerization, vapor phase polymerizer and blower |
摘要 |
A blower 100 for recycling a powder containing gas or for conducting a cyclone treatment thereof, which comprises a casing of blower body 108 having therein a slide or rotational slide part between its discharge side as a high pressure side and its suction side as a low pressure side, the above slide or rotational slide part being provided with a noncontacted gas leakproof seal part 166 at a clearance ranging from 0.7 to 2.5 mm. A vapor phase polymerization method is provided which is free from the problem that recycling gas such as unreacted gaseous olefin having been discharged from a fluidized bed reactor is formed into a stringy melt polymer or combined into powder to thereby clog a gas recycling pipe or is entrained to a gas recycling pipe or a distributor plate of a polymerizer to thereby cause clogging. Also, a vapor phase polymerizer suitably employed in the above method of vapor phase polymerization and blowers suitably employed in the vapor phase polymerization method and vapor phase polymerizer are provided. <IMAGE> |
申请公布号 |
EP0808848(A3) |
申请公布日期 |
1998.07.15 |
申请号 |
EP19970303263 |
申请日期 |
1997.05.14 |
申请人 |
MITSUI PETROCHEMICAL INDUSTRIES, LTD. |
发明人 |
YAMAMOTO, RYOICHI;OKANO, TOSHIRO;ICHIMURA, MITSUNORI;KIKUCHI, YOSHIAKI |
分类号 |
F16J15/447;B01J8/18;B01J8/24;C08F2/00;C08F2/34;C08F10/00;C08F210/16;F04D29/16 |
主分类号 |
F16J15/447 |
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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