Use of modified 5-7 a pore molecular sieves for isomerization of
hydrocarbons
    53.
    发明授权
    Use of modified 5-7 a pore molecular sieves for isomerization of hydrocarbons 失效
    使用改性的5-7孔分子筛进行烃的异构化

    公开(公告)号:US5282958A

    公开(公告)日:1994-02-01

    申请号:US556560

    申请日:1990-07-20

    摘要: A process is disclosed for dewaxing a hydrocarbon feed to produce a dewaxed lube oil. The feed includes straight chain and slightly branched chain paraffins having 10 or more carbon atoms. In the process the feed is contacted under isomerization conditions with an intermediate pore size molecular sieve having a crystallite size of no more than about 0.5.mu. and pores with a minimum diameter of at least 4.8.ANG. and with a maximum diameter of 7.1.ANG. or less. The catalyst has sufficient acidity so that 0.5 g thereof when positioned in a tube reactor converts at least 50% of hexadecane at 370.degree. C., a pressure of 1200 psig, a hydrogen flow of 160 ml/min, and a feed rate of 1 ml/hr. It also exhibits 40 or greater isomerization selectivity when used under conditions leading to 96% conversion of hexadecane to other chemicals. The catalyst includes at least one Group VIII metal. The contacting is carried out at a pressure from about 15 psig to about 3000 psig.

    摘要翻译: 公开了一种用于使烃进料脱蜡以生产脱蜡润滑油的方法。 进料包括具有10个或更多个碳原子的直链和轻链支链烷烃。 在该过程中,进料在异构化条件下与具有不超过约0.5(my)的微晶尺寸的中孔分子筛和最小直径至少为4.8(Aangstroem)的孔和最大直径为7.1 (Aangstroem)或更少。 该催化剂具有足够的酸度,使得当其位于管式反应器中时,其0.5g在370℃下转化至少50%的十六烷,压力为1200psig,氢气流量为160ml / min,进料速率为1 ml / hr。 当在导致十六烷转化为其他化学品的96%的条件下使用时,它还具有40或更高的异构化选择性。 该催化剂包括至少一种第VIII族金属。 接触在约15psig至约3000psig的压力下进行。

    Preparation of magadiite
    57.
    发明授权
    Preparation of magadiite 失效
    麦草碱的制备

    公开(公告)号:US4626421A

    公开(公告)日:1986-12-02

    申请号:US750373

    申请日:1985-06-28

    申请人: Stacey I. Zones

    发明人: Stacey I. Zones

    摘要: A method for preparing magadiite is described wherein the reaction mixture for crystallization thereof contains as a promoter, a hydrocarbon substituted urea or amide. The magadiite prepared according to this method may act as a source of silica in preparing crystalline zeolites or molecular sieves.

    摘要翻译: 对制备马来半晶硅的方法进行描述,其中用于结晶的反应混合物作为助催化剂,烃取代的脲或酰胺。 根据该方法制备的岩浆石可以作为制备结晶沸石或分子筛的二氧化硅来源。