Basic zinc-containing zeolite compositions
    1.
    发明授权
    Basic zinc-containing zeolite compositions 失效
    碱性含锌沸石组合物

    公开(公告)号:US5070052A

    公开(公告)日:1991-12-03

    申请号:US586120

    申请日:1990-09-21

    摘要: This invention relates to a composition comprising a zeolite and a zinc or a zinc plus an alkali metal and/or an alkaline earth metal compound wherein the sum of the amount of the zinc or zinc plus alkali metal and/or alkaline earth metal in the compound plus any metal cation exchanged into the zeolite is in excess of that required to provide a fully metal cation-exchanged zeolite. The catalyst is preferably activated before use as a catalyst by heating to 400.degree. C. to 650.degree. C., typically in a nitrogen or air atmosphere.

    摘要翻译: 本发明涉及包含沸石和锌或锌加碱金属和/或碱土金属化合物的组合物,其中化合物中锌或锌与碱金属和/或碱土金属的量之和 加上交换到沸石中的任何金属阳离子超过提供完全金属阳离子交换的沸石所需的金属阳离子。 催化剂优选在使用前通过加热至400℃至650℃,通常在氮气或空气气氛中作为催化剂活化。

    Methyl alkylation of toluene using basic zeolite catalysts
    2.
    发明授权
    Methyl alkylation of toluene using basic zeolite catalysts 失效
    使用碱性沸石催化剂甲苯烷基化甲苯

    公开(公告)号:US5015796A

    公开(公告)日:1991-05-14

    申请号:US450799

    申请日:1989-12-14

    IPC分类号: B01J29/06 C07C2/86

    摘要: This invention relates to a process for the alkylation of methylbenzene to produce ethylbenzene and styrene. In this process methylbenzene and methanol are contacted with a catalyst formed from a zeolite and an alkali(ne earth) metal compound wherein said compound is selected from alkaline earth metal compound and a mixture of alkaline earth metal compound and alkali metal compound and wherein the sum of the amount of the alkali(ne earth) metal in the compound plus any metal cation exchanged into the zeolite is in excess of that required to provide a fully metal cation-exchanged zeolite.

    摘要翻译: 本发明涉及甲苯烷基化生产乙苯和苯乙烯的方法。 在该方法中,甲苯和甲醇与由沸石和碱(ne earth)金属化合物形成的催化剂接触,其中所述化合物选自碱土金属化合物和碱土金属化合物与碱金属化合物的混合物,其中总和 化合物中加上任何金属阳离子交换成沸石的碱金属(碱土金属)的量超过提供完全金属阳离子交换的沸石所需的量。

    Basic alkali metal-zeolite compositions
    3.
    发明授权
    Basic alkali metal-zeolite compositions 失效
    碱性碱金属 - 沸石组合物

    公开(公告)号:US5194244A

    公开(公告)日:1993-03-16

    申请号:US354586

    申请日:1989-05-22

    IPC分类号: B01J29/06 C07C29/50 C07C45/33

    摘要: This invention relates to basic compositions comprising a zeolite and an alkali metal compound wherein the sum of the amount of the alkali metal in the compound plus any metal cation exchanged into the zeolite is in excess of that required to provide a fully metal cation-exchanged zeolite. This invention further relates to methods for preparing the instant compositions. In a preferred embodiment the instant compositions are prepared by impregnating a zeolite with a solution of an alkali metal salt wherein said alkali metal impregnated in the zeolite is in excess of that required to exchange out the ion exchangable sites present in the zeolite, drying the resultant impregnated material and then calcining the resultant composition.

    摘要翻译: 本发明涉及包含沸石和碱金属化合物的碱性组合物,其中化合物中的碱金属的量加上交换成沸石的任何金属阳离子的总和超过提供完全金属阳离子交换的沸石所需的量 。 本发明还涉及制备本发明组合物的方法。 在优选的实施方案中,本发明的组合物通过用碱金属盐溶液浸渍沸石来制备,其中浸渍在沸石中的所述碱金属超过了沸石中存在的可离子交换位点所需的碱金属,干燥所得物 然后煅烧所得组合物。

    Process for cracking paraffins to olefins
    4.
    发明授权
    Process for cracking paraffins to olefins 失效
    将烯烃裂解成烯烃的方法

    公开(公告)号:US5159128A

    公开(公告)日:1992-10-27

    申请号:US803764

    申请日:1991-12-05

    IPC分类号: B01J23/02 B01J29/08 C07C4/06

    摘要: This invention is a process for the catalytic cracking of parafins to produce olefins in high yield while minimizing production of aromatics. The catalyst used is a zeolite in combination with an alkali(ne earth) metal compound wherein the sum of the amount of the alkali(ne earth) metal in the compound plus any metal cation exchanged into the zeolite is in excess of that required to provide a fully metal cation-exchanged zeolite.

    摘要翻译: 本发明是一种在最小化芳族化合物生产的同时以高产率催化裂解石蜡以生产烯烃的方法。 所使用的催化剂是与碱(ne earth)金属化合物组合的沸石,其中化合物中加入的任何金属阳离子中的碱金属(ne earth)金属的总和超过提供 完全金属阳离子交换的沸石。

    Process for converting paraffins to alpha olefins
    8.
    发明授权
    Process for converting paraffins to alpha olefins 失效
    石蜡转化为α-烯烃的方法

    公开(公告)号:US5159127A

    公开(公告)日:1992-10-27

    申请号:US803761

    申请日:1991-12-05

    IPC分类号: C07C4/06 C07C6/04 C07C11/02

    摘要: This invention is a two step process for converting linear paraffins to linear alpha olefins. In the first step the paraffins are cracked to a mixture of alpha and internal olefins by use of a cracking catalyst of a zeolite in combination with an alkali(ne earth) metal compound wherein the sum of the amount of the alkali(ne earth) metal in the compound plus any metal cation exchanged into the zeolite is in excess of that required to provide a fully metal cation-exchanged zeolite. The resulting olefin-containing cracked product is then converted to a substantially alpha olefin-containing product by contact with ethylene and a disproportionation catalyst at disproportionation conditions. The resulting products contains only small amounts of aromatics.

    摘要翻译: 本发明是将线性链烷烃转化为直链α-烯烃的两步法。 在第一步中,通过使用沸石的裂化催化剂与碱(ne earth)金属化合物的组合将链烷烃裂化成α和内烯烃的混合物,其中碱(ne earth)金属 在化合物加上交换到沸石中的任何金属阳离子超过提供完全金属阳离子交换的沸石所需的金属阳离子。 然后将得到的含烯烃裂化产物通过在歧化条件下与乙烯和歧化催化剂接触而转化为基本上含α-烯烃的产物。 所得产品仅含少量芳烃。

    Use of viscosity as an in-line diagnostic for high internal phase
emulsion generation
    9.
    发明授权
    Use of viscosity as an in-line diagnostic for high internal phase emulsion generation 失效
    使用粘度作为高内相乳液生成的在线诊断

    公开(公告)号:US5394738A

    公开(公告)日:1995-03-07

    申请号:US185654

    申请日:1994-01-24

    摘要: A lightweight absorbent foam is produced using a high internal phase emulsion (HIPE), the production of which incorporates the use of capillary viscosity measurements as an in-line diagnostic for HIPE quality. The in-line diagnostics yield measurements of viscosity slope and amplitude. These measurements offer several advantages for monitoring emulsion quality, including stable high resolution measurement of hardware-independent parameters of the whole flow, without the need for sampling.

    摘要翻译: 使用高内相乳液(HIPE)生产轻质的吸收性泡沫,其生产包括使用毛细管粘度测量作为HIPE质量的在线诊断。 在线诊断产生粘度斜率和振幅的测量。 这些测量提供了监测乳液质量的几个优点,包括稳定的高分辨率测量整个流程的硬件无关参数,无需采样。

    Process for preparing low density porous crosslinked polymeric materials
    10.
    发明授权
    Process for preparing low density porous crosslinked polymeric materials 失效
    制备低密度多孔交联聚合物材料的方法

    公开(公告)号:US5358974A

    公开(公告)日:1994-10-25

    申请号:US159072

    申请日:1993-11-29

    摘要: In a process for the preparation of a low density porous crosslinked polymeric material by polymerizing a water-in-oil high internal phase emulsion, curing time of the monomers in the emulsion can be reduced without adversely affecting polymer properties by first advancing one or more of the monomers. All or a portion of the monomers are advanced in the presence of an advancement initiator or a free-radical-producing radiation source for about 5% to about 95% of the time effective to form a solid. Then, a water-in-oil high internal phase emulsion is formed with the advanced monomers and optionally additional monomers or the advanced monomers are added to a water-in-oil high internal phase emulsion containing other monomers. The emulsions containing the advanced monomers are cured. The process provides an improved method to incorporate volatile monomers in the porous polymeric material. The curing time is further reduced by carrying out the polymerization and crosslinking in the presence of a alkylperoxycarbonate or a alkylperoxycarboxylate polymerization initiator that is branched at the 1-position and/or the .alpha.-position.

    摘要翻译: 在通过聚合油包水高内相乳液制备低密度多孔交联聚合物材料的方法中,可以降低乳液中单体的固化时间,而不会不利地影响聚合物性质,首先推进一种或多种 单体。 全部或部分单体在提前引发剂或自由基产生辐射源存在下进行,约有效形成固体的约5%至约95%。 然后,将高级单体和任选的另外的单体或先进的单体加入到含有其它单体的油包水高内相乳液中形成油包水高相内乳液。 含有先进单体的乳液被固化。 该方法提供了将挥发性单体引入多孔聚合物材料中的改进方法。 通过在1位和/或α位上分支的过氧化碳酸烷基酯或烷基过氧羧酸酯聚合引发剂的存在下进行聚合和交联进一步降低固化时间。