专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明授权

US5157196A Paraffin alkylation process 失效
标题翻译： PARAFFIN烷基化方法
公开(公告)号：US5157196A
公开(公告)日：1992-10-20
申请号：US632478
申请日：1990-12-24
申请人： Clifford S. Crossland , Alan Johnson , John Woods , Elliot G. Pitt
发明人： Clifford S. Crossland , Alan Johnson , John Woods , Elliot G. Pitt
IPC分类号： C07C2/08 , B01J8/22 , B01J27/12 , C07B61/00 , C07C2/58 , C07C2/60 , C07C2/62 , C07C9/16
CPC分类号： C07C2/60 , B01J27/12 , B01J8/228 , C07C2/58 , C07C2521/08 , C07C2527/133
摘要： Paraffin alkylation using solid, particulate catalyst is carried out by preparing an alkane-catalyst mixture in a wash zone, passing the alkane-catalyst mixture to a plug flow reactor where a minor amount of olefin is introduced to contact the alkane-catalyst mixture and react to form alkylate and the alkane-catalyst-alkylate mixture is passed through the reactor with a minimum of back mixing to restrict the reaction of alkylate with olefin, thus substantially preventing polymerization. The alkane-catalyst-alkylate mixture, substantially free of olefin is passed to a disengaging zone where the liquid is removed and the solid particulate catalyst is recovered and returned to the wash zone for recycle. The alkane is present in the reactor in sufficient molar excess to react substantially all of the olefin. Any unreacted isoalkane is recycled to the reactor with make-up isoalkane added to maintain the molar excess. The preferred catalyst is an acid washed silica treated with antimony pentafluoride and more preferably treated with alkane at low temperature, e.g. -30.degree. to -160.degree. C.

52. 发明授权

US4951818A Equipment carrier and method of using same 失效
标题翻译：设备载体及其使用方法
公开(公告)号：US4951818A
公开(公告)日：1990-08-28
申请号：US373349
申请日：1989-06-29
申请人： Alan Johnson
发明人： Alan Johnson
IPC分类号： A45C5/14 , A45C13/36
CPC分类号： A45C13/36 , A45C5/14
摘要： A carrier includes a hollow boxlike body member having a plurality of soft, pliable walls. At least one of the walls contains a compartment of a given width and an impact absorbing panel removably disposed therewithin. The panel has a width somewhat greater than the width of the compartment. The impact absorbing panel is slightly flexed end-to-end about its midplane to tension the compartment to maintain the wall taut in an aesthetically pleasing manner. The panel can be removed from the compartment, to help permit with release of the flexion force, the panel is restored to its usual flat configuration thereby imparting tautness to the compartment. One of the carrier side walls is rigid and has a plurality of wheels fixed to its exterior to rollably support the carrier during transport.
摘要翻译：载体包括具有多个柔软的柔韧壁的中空盒状体部件。至少一个壁包含给定宽度的隔室和可移除地设置在其中的冲击吸收板。面板的宽度稍大于隔间的宽度。撞击吸收板围绕其中平面端对端地稍微弯曲，以张紧隔室，以保持以美观的方式拉紧。面板可以从隔间移除，以帮助释放弯曲力而允许面板恢复到其通常的平面构型，从而赋予隔间紧张度。载体侧壁中的一个是刚性的并且具有固定到其外部的多个轮，以在运输期间可滚动地支撑载体。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式