Selective opening of five and six membered rings
    5.
    发明授权
    Selective opening of five and six membered rings 失效
    选择性打开五和六元环

    公开(公告)号:US5811624A

    公开(公告)日:1998-09-22

    申请号:US524358

    申请日:1995-09-05

    摘要: A process for opening C.sub.5 and C.sub.6 rings without substantial cracking. A feedstream containing compounds comprised of at least one C.sub.5 -ring, at least one C.sub.6 -ring, or both, is contacted, in the presence of hydrogen, with a transition metal catalyst selected from the group consisting of carbides, nitrides, oxycarbides, oxynitrides, and oxycarbonitrides. The transition metal is selected from the group consisting of metals from Groups IVa, Va, and VIa of the Periodic Table of the Elements.

    摘要翻译: 用于打开C5和C6环的方法,没有明显的开裂。 含有至少一个C5-环,至少一个C6环或两者的含有化合物的原料流在氢的存在下与选自碳化物,氮化物,碳氧化物,氧氮化物的过渡金属催化剂接触 ,和碳氮氧化物。 过渡金属选自元素周期表第Ⅳa,Ⅴa和Ⅵa族的金属。

    Process for the production of medicinal white oil
    6.
    发明授权
    Process for the production of medicinal white oil 失效
    生产药用白油的工艺

    公开(公告)号:US06187176B1

    公开(公告)日:2001-02-13

    申请号:US08917652

    申请日:1997-08-22

    IPC分类号: C10G1706

    CPC分类号: C10G65/08 C10G2400/14

    摘要: A three stage process for producing high quality white oils, particularly food grade mineral oils from mineral oil distillates. The first reaction stage preferably employs a sulfur resistant hydrotreating catalyst and produces a product suitable for use as a high quality lubricating oil base stock. The second reaction stage preferably employs a hydrogenation/hydrodesulfurization catalyst combined with a sulfur sorbent and produces a product stream which is low in aromatics and which has substantially “nil” sulfur. The final reaction stage employs a selective hydrogenation catalyst that produces a product suitable as a food grade white oil.

    摘要翻译: 生产高品质白油,特别是矿物油馏分的食品级矿物油的三阶段工艺。 第一反应阶段优选使用耐硫酸加氢处理催化剂,并产生适合用作高品质润滑油基础原料的产品。 第二反应阶段优选采用与硫吸附剂组合的氢化/加氢脱硫催化剂并产生芳族化合物低且基本上“无”硫的产物流。 最终反应阶段采用选择性氢化催化剂,其产生适合作为食品级白油的产品。