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70 条记录 (耗时 0.016 秒)

    Process for the separation of ammonia and carbon dioxide from mixtures containing ammonia, carbon dioxide and water
    42.
    发明授权
    Process for the separation of ammonia and carbon dioxide from mixtures containing ammonia, carbon dioxide and water 失效
    从含有氨，二氧化碳和水的混合物中分离出氨和二氧化碳的方法

    公开(公告)号：EP0018028B1

    公开(公告)日：1983-01-26

    申请号：EP80200296.4

    申请日：1980-03-29

    申请人： STAMICARBON B.V.

    发明人： Goorden, Josephus Johannes Petrus Maria

    IPC分类号： C01C1/12 ,  C01B31/20 ,  B01D19/00

    CPC分类号： B01D19/0068 ,  C01B32/50 ,  C01C1/12 ,  Y02C10/06 ,  Y02C10/12

    摘要： An improved process for the separate recovery of substantially pure ammonia and substantially pure carbon dioxide from mixtures containing ammonia and carbon dioxide, and possibly water, such as are obtained as by-products in the manufacture of melamine from urea or the synthesis of urea from ammonia and carbon dioxide. The by-product mixture is introduced into a process loop having an ammonia separation zone, a carbon dioxide separation zone and a desorption zone, the zone to which the mixture is initially fed being dependent upon its composition. The separation is effected by maintaining a system pressure differential between the ammonia and carbon dioxide separation zones, or adding diluting water to the carbon dioxide separation zone. The efficiency of the separation is enhanced by introducing a carbon dioxide containing gaseous phase, and preferably an excess of an inert gas, into the bottom of the ammonia separation zone.

    Process for the production of a plastic object
    45.
    发明公开
    Process for the production of a plastic object 失效
    一种用于生产聚合物制品的过程。

    公开(公告)号：EP0048058A1

    公开(公告)日：1982-03-24

    申请号：EP81200994.2

    申请日：1981-09-08

    申请人： STAMICARBON B.V.

    发明人： Dunning, Leslie Granthem William ,  De Warrimont, Jean Pierre Leon Marie Noel

    IPC分类号： C08J3/00 ,  C08J3/22 ,  C08L55/02

    CPC分类号： C08J3/12 ,  C08J3/005 ,  C08J2355/02 ,  C08L55/02 ,  C08L2666/24

    摘要： The invention relates to a process for the production of an object from a granular ABS polymer composition, said composition comprising

    I. 10-100 parts by weight of one or more graft copolymers obtained by polymerizing a mixture of one or more unsaturated nitriles and one or more vinylaromatic compounds in the presence of a rubber.
    ll. 0-90 parts by weight of a copolymer of one or more unsaturated nitriles and one or more vinylaromatic compounds, and
    lll. 0-20 parts by weight of one or more additives, wherein the polymer composition is melted, homogenized, and extruded or injection moulded into an object.

    To improve the flowproperties of the mixture introduced into the processing equipment and the throughput of this equipment the invention is characterized in that said granular composition has a particle size distribution with at least two peaks, and that the ratio between the diameters at said peaks exceeds 1.5.

    Process for the separation of ammonia and carbon dioxide from mixtures containing ammonia, carbon dioxide and water
    47.
    发明授权
    Process for the separation of ammonia and carbon dioxide from mixtures containing ammonia, carbon dioxide and water 失效
    从含有氨，二氧化碳和水的混合物中分离出氨和二氧化碳的方法

    公开(公告)号：EP0005292B1

    公开(公告)日：1981-10-14

    申请号：EP79200196.8

    申请日：1979-04-18

    申请人： STAMICARBON B.V.

    发明人： Biermans, Andreas Johannes

    IPC分类号： C01C1/02 ,  C01B31/20

    CPC分类号： C01C1/12 ,  Y02C10/06

    摘要： An improved process for the separate recovery of substantially pure ammonia and substantially pure carbon dioxide from mixtures containing ammonia and carbon dioxide, and possibly water, such as are obtained as by-products in the manufacture of melamine from urea or the synthesis of urea from ammonia and carbon dioxide. The by-product mixture is introduced into a process loop having an ammonia separation zone, a carbon dioxide separation zone and a desorption zone, the zone to which the mixture is initially fed being dependent upon its composition. The separation is effected by maintaining a system pressure differential between the ammonia and carbon dioxide separation zones, or adding diluting water to the carbon dioxide separation zone. The efficiency of the separation is enhanced by introducing an ammonia containing gaseous phase into the bottom of the carbon dioxide separation zone.

    Thermoplastic moulding material and article prepared thereof
    49.
    发明公开
    Thermoplastic moulding material and article prepared thereof 失效
    Thermoplastische Formmasse und daraus hergestellter Gegenstand。

    公开(公告)号：EP0013051A1

    公开(公告)日：1980-07-09

    申请号：EP79200767.6

    申请日：1979-12-15

    申请人： STAMICARBON B.V.

    发明人： de Man, Hendrikus Cornelis Johannes ,  Smids, Petrus Theresa Johannes L.

    IPC分类号： C08L55/02 ,  C08L25/18 ,  C08L23/00 ,  C08L77/00

    CPC分类号： C08L51/04 ,  C08K3/10 ,  C08L25/12 ,  C08L25/18 ,  C08L55/02 ,  C08L2666/04

    摘要： Flame resistant thermoplastic moulding materials are disclosed based on one or more thermoplastic polymers, a bromine-containing copolymer and optionally one or more flame-retardant metal compounds.
    As the bromine-containing copolymer a copolymer of nuclear brominated styrene with one or more other monomers, such as acrylonitrile, styrene and/or alpha- methylstyrene, is used.
    An ABS-graft copolymer is preferably used as the thermoplastic polymer. These moulding materials exhibit excellent physical and working properties while retaining high flame-retardant values.

    摘要翻译： 基于一种或多种热塑性聚合物，含溴共聚物和任选的一种或多种阻燃金属化合物公开了耐火热塑性成型材料。 作为含溴共聚物，使用核溴化苯乙烯与一种或多种其它单体如丙烯腈，苯乙烯和/或α-甲基苯乙烯的共聚物。 优选使用ABS-接枝共聚物作为热塑性聚合物。 这些成型材料在保持高阻燃性的同时表现出优异的物理和加工性能。