Process for upgrading gasolines and other hydrocarbon mixtures
    3.
    发明授权
    Process for upgrading gasolines and other hydrocarbon mixtures 失效
    汽油和其他烃类混合物的升级方法

    公开(公告)号:US5252197A

    公开(公告)日:1993-10-12

    申请号:US952352

    申请日:1992-09-28

    IPC分类号: C10G35/095 C10G35/04

    CPC分类号: C10G35/095

    摘要: A process for upgrading gasolines and other hydrocarbon mixtures. The hydrocarbon mixture is contacted with a large pore zeolite catalyst in order to crack n-paraffins to form olefins and lower molecular weight n-paraffins, to cause the olefins to react with benzene in order to form alkylbenzenes, and to catalyze the isomerization of the n-paraffins to form i-paraffins. Preferably, all of the above reactions occur in a single reactant mixture in the presence of a zeolite catalyst having ten and/or twelve membered ring-type structures. The process of the invention reduces the benzene quantity of the hydrocarbon mixture and increases its octane number.

    摘要翻译: 汽油和其他烃混合物的升级方法。 将烃混合物与大孔沸石催化剂接触以裂解正链烷烃以形成烯烃和较低分子量的正链烷烃,以使烯烃与苯反应以形成烷基苯,并催化异构化 正链烷烃形成正链烷烃。 优选地,在具有十个和/或十二元环型结构的沸石催化剂的存在下,所有上述反应都发生在单一反应物混合物中。 本发明的方法降低烃混合物的苯量并增加其辛烷值。

    Crystallization process
    7.
    发明授权
    Crystallization process 失效
    结晶过程

    公开(公告)号:US4304917A

    公开(公告)日:1981-12-08

    申请号:US160684

    申请日:1980-06-18

    申请人: George D. Suciu

    发明人: George D. Suciu

    CPC分类号: C07D213/82

    摘要: In the crystallization of a material from a liquid solution thereof wherein normal rapid cooling produces a non-filterable solid, the mixture of material and liquid is subjected to a high shear force field to produce a filterable slurry of the material, with the mixture being subjected to the shear force either during the cooling or subsequent thereto. The process is particularly applicable to recovering nicotinamide from a supersaturated aqueous solution thereof.

    摘要翻译: 在从其液体溶液中的材料的结晶中,其中正常快速冷却产生不可过滤的固体,材料和液体的混合物经受高剪切力场以产生材料的可过滤浆料,混合物经受 在冷却期间或之后的剪切力。 该方法特别适用于从其过饱和水溶液中回收烟酰胺。

    Phenol purification
    8.
    发明授权
    Phenol purification 失效
    苯酚净化

    公开(公告)号:US4857151A

    公开(公告)日:1989-08-15

    申请号:US392569

    申请日:1982-06-28

    IPC分类号: B01D3/34 C07C37/78

    CPC分类号: B01D3/34 C07C37/685 C07C37/78

    摘要: Crude phenol containing methyl benzofuran and other impurities is distilled in the presence of water to recover a phenol bottoms having a reduced quantity of impurities. The water-phenol overhead is cooled to separate a water phase essentially free of methyl benzofuran, which is recycled to the distillation. The organic phase may then be further distilled, in the presence of water, as previously described, to eventually recover a reduced quantity of phenol in which impurities are concentrated.

    摘要翻译: 在水存在下蒸馏含有甲基苯并呋喃和其他杂质的粗苯酚,以回收具有减少的杂质量的苯酚底物。 将水 - 苯酚塔顶馏出物冷却以分离基本上不含甲基苯并呋喃的水相,将其再循环至蒸馏。 然后可以如上所述在水的存在下进一步蒸馏有机相,以最终回收减少量的杂质浓缩的苯酚。

    Production of high purity phenol by distillation with steam and a solvent
    10.
    发明授权
    Production of high purity phenol by distillation with steam and a solvent 失效
    用蒸汽和溶剂蒸馏生产高纯度苯酚

    公开(公告)号:US4532012A

    公开(公告)日:1985-07-30

    申请号:US547077

    申请日:1983-10-31

    IPC分类号: C07C37/80 C07C37/78

    CPC分类号: C07C37/80 C07C37/78

    摘要: Phenol containing MBF impurity is distilled in the presence of water and an extraction solvent for MBF (preferably AMS and/or cumene) to recover a phenol bottoms having reduced impurities. The use of solvent permits a reduction in the amount of water used, which reduces the amount of phenol in the overhead, thereby lowering costs.

    摘要翻译: 含有MBF杂质的苯酚在水和MBF(优选AMS和/或异丙基苯)的萃取溶剂的存在下蒸馏以回收具有降低的杂质的苯酚底物。 溶剂的使用允许减少所用水的量,这降低了塔顶馏出物中苯酚的量,从而降低了成本。