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    Bitumen modification using fly ash derived from bitumen coke
    3.
    发明授权
    Bitumen modification using fly ash derived from bitumen coke 失效
    使用来自沥青焦炭的飞灰进行沥青改性

    公开(公告)号：US5807478A

    公开(公告)日：1998-09-15

    申请号：US857887

    申请日：1997-05-16

    申请人： Ronald Damian Myers ,  Mainak Ghosh ,  John Brenton MacLeod

    发明人： Ronald Damian Myers ,  Mainak Ghosh ,  John Brenton MacLeod

    IPC分类号： C10G9/00 ,  C10G47/02 ,  C10G47/26 ,  C10G3/00

    CPC分类号： C10G47/02 ,  C10G47/26 ,  C10G9/007

    摘要： A method for lowering the viscosity and specific gravity of a heavy hydrocarbon to render it pipelineable is disclosed. The method comprises adding a vanadium and nickel containing coke fly ash to the heavy hydrocarbon; reacting the heavy hydrocarbon in the presence of the fly ash with a molecular hydrogen containing gas under hydroconversion conditions for a time sufficient to lower the viscosity of the hydrocarbon in the range of about 20 to 60 centipoise at 40.degree. C. and to lower the specific gravity in the range of from about 0.925 to about 0.940 at 15.degree. C., whereby the heavy hydrocarbon is rendered pipelineable.

    摘要翻译： 公开了一种用于降低重质烃的粘度和比重以使其可流通的方法。 该方法包括向重质烃中加入含钒和镍的焦炭粉煤灰; 在加氢转化条件下，在飞灰存在下使重质烃与含分子氢的气体反应足以在40℃下将烃的粘度降低到约20至60厘泊的范围内，并降低特定的 重力在15℃在约0.925至约0.940的范围内，由此使重质烃可流通。

    Rubber devulcanization process
    7.
    发明授权
    Rubber devulcanization process 失效
    橡胶脱硫工艺

    公开(公告)号：US5798394A

    公开(公告)日：1998-08-25

    申请号：US734323

    申请日：1996-10-21

    申请人： Ronald Damian Myers ,  John Brenton MacLeod

    发明人： Ronald Damian Myers ,  John Brenton MacLeod

    IPC分类号： C08J11/10 ,  C08J11/16 ,  C08F8/00 ,  C08J11/18

    CPC分类号： C08J11/16 ,  C08J2321/00 ,  Y02W30/705

    摘要： A process for devulcanizing and functionalizing a rubber vulcanizate by desulfurization involves suspending a rubber vulcanizate crumb in a solvent which preferably swells the rubber vulcanizate before or during the devulcanization reaction and adding an alkali metal, such as sodium, to the suspension. The alkali metal cleaves mono-, di- and polysulfidic cross-linkages in the rubber vulcanizate to liberate rubber polymer having a molecular weight substantially equal to that of the rubber polymer prior to vulcanization. Functional groups derived from the solvent molecules bond to the devulcanized rubber's polymeric backbone. In addition to the functionalized devulcanized rubber polymer, carbon black may also be recovered for re-use in accordance with the process of the present invention. The functionalized devulcanized rubber may be subjected to a re-vulcanization reaction without separation of rubber polymer from the solvent by addition of an appropriate curing mixture.

    摘要翻译： 通过脱硫对橡胶硫化橡胶进行硫化和官能化的方法包括将橡胶硫化胶屑悬浮在溶剂中，所述溶剂优选在脱硫反应之前或期间溶胀橡胶硫化橡胶，并向碱悬浮液中加入碱金属如钠。 碱金属在橡胶硫化橡胶中裂解单，二和多硫交联，释放在硫化之前分子量基本上等于橡胶聚合物的橡胶聚合物。 衍生自溶剂分子的官能团与脱硫橡胶的聚合物主链结合。 除了官能化的脱硫橡胶聚合物之外，炭黑也可以根据本发明的方法回收再利用。 官能化的脱硫橡胶可以进行再硫化反应，而不通过加入适当的固化混合物从溶剂中分离出橡胶聚合物。