发明名称 |
Process for preparing isoprene. |
摘要 |
<p>Aldehydes can be converted to dienes by contacting the aldehydes with a non-zeolitic molecular sieve. Preferably the non-zeolitic molecular sieve has, in its calcined form, an adsorption of isobutane of at least about 2 percent by weight of the non-zeolitic molecular sieve at a partial pressure of 500 torr and a temperature of 20 DEG C. The non-zeolitic molecular sieves can achieve good conversion rates and selectivities for the reaction. The reaction is especially useful for the conversion of 2-methylbutyraldehyde to isoprene.</p> |
申请公布号 |
EP0272663(A1) |
申请公布日期 |
1988.06.29 |
申请号 |
EP19870118921 |
申请日期 |
1987.12.21 |
申请人 |
UNION CARBIDE CORPORATION |
发明人 |
O'CONNOR, GEORGE L.;KAISER, STEVEN W.;MCCAIN, JAMES H. |
分类号 |
B01J29/83;C07B61/00;B01J29/04;B01J29/84;B01J29/85;C01B25/45;C01B37/06;C01B37/08;C01B39/10;C01B39/12;C01B39/54;C07C1/00;C07C1/24;C07C11/18;C07C67/00 |
主分类号 |
B01J29/83 |
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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