Catalyst for the hydrogenation of oils
    331.
    发明授权
    Catalyst for the hydrogenation of oils 失效
    催化剂用于加氢油

    公开(公告)号:US3743662A

    公开(公告)日:1973-07-03

    申请号:US3743662D

    申请日:1970-05-28

    Applicant: STAMICARBON

    CPC classification number: C11C3/123 B01J23/72

    Abstract: THE PRESENT INVENTION RELATES TO A PROCESS OF HYDROGENATING OIL AT ELEVATED TEMPERATURE, BY MEANS OF A CATALYST CONTAINING ELEMENTARY COPPER AND NICKEL ON A THERMOSTABLE CARRIER MATERIAL. THE CATALYST IS OBTAINED IN THREE SEPARATE STEPS; IN THE FIRST STEP A HOMOGENEOUS LAYER OF HYDRATED NICKEL OXIDE IS PRECIPITATED ONTO THE THERMOSTABLE CARRIER MATERIAL, IN THE SECOND STEP AN INSOLUBLE COPPER COMPOUND IS PRECIPATED IN HOMOGENEOUS DISTRIBUTION ONTO TE LAYER OF HYDRATED NICKEL OXIDE, AND IN THE THIRD STEP THE LOADED CARRIER MATERIAL IS SUBJECTED TO A REDUCTIVE TREATMENT AT A TEMPERATURE ABOVE 150*C.

    Copper catalyst
    332.
    发明授权
    Copper catalyst 失效
    铜催化剂

    公开(公告)号:US3723353A

    公开(公告)日:1973-03-27

    申请号:US3723353D

    申请日:1970-05-25

    Applicant: STAMICARBON

    CPC classification number: B01J23/755 B01J23/72

    Abstract: THE PRESENT INVENTION RELATES TO A PROCESS FOR THE PREPRATION OF A CATALYST MASS FROM DILUTE AQUEOUS SOLUTIONS OF COPPER AND NICKEL SALTS, PARTICULARLY PRECIPITATION OF A COPPER COMPOUND OUT OF AN AQUEOUS SOLUTION ONTO A THERMALLY STABLE CARRIER MATERIAL SUSPENDED THEREIN. THE COPPER COMPOUND IS SECURED TO THE CARRIER MATERIAL VIA A NICKEL COMPOUND AND IS REDUCED TO METALLIC COPPER AFTER BEING SO SECURED. COPPER CATALYSTS HAVE A WIDE FIELD OF APPLIATION IN DEHYDROGENATION REACTIONS, E.G., THE DEHYDROGENATION OF CYCLOHEXANOL TO CYCLOHEXANONE AND OF ISOPROPYL ALCOHOL TO ACETONE. COPPER CATALYSTS ARE ALSO VERY SUITABLE FOR CARRYING OUT SELECTIVE HYDROGENATION PROCESSES, THERE ARE INDICATIONS THAT METALLIC COPPER SURFACES MAY GREATLY ACCELERATE THE OXIDATION OF HYDROCARBONS E.G. CUMENE VIA RADICAL MECHANISMS.

    Apparatus for coating granules with a thin dense layer
    333.
    发明授权
    Apparatus for coating granules with a thin dense layer 失效
    用于涂覆具有薄层的颗粒的装置

    公开(公告)号:US3716020A

    公开(公告)日:1973-02-13

    申请号:US3716020D

    申请日:1970-09-29

    Applicant: STAMICARBON

    Inventor: DE WIT W HENDRIKS P

    CPC classification number: C05C9/005 B01J2/28

    Abstract: A method and apparatus for applying a thin, protective coating to individual granules by generating a liquid screen of the coating material at one end of a vertical shaft, passing the granules down through the screen and onto baffles disposed in the lower portion of the shaft. The liquid will pass down the walls of the shaft and onto the baffles and become entrained with the granules impinging thereon. A rotary drum is provided adjacent the discharge end of the shaft to intimately mix the materials passing out of the shaft.

    Abstract translation: 一种通过在垂直轴的一端产生涂层材料的液体屏幕,将颗粒向下通过筛网并置于设置在轴的下部的挡板上的方法和装置,用于对单个颗粒施加薄的保护涂层。 液体将沿着轴的壁传递到挡板上,并与被撞击在其上的颗粒夹带。 旋转鼓设置在轴的排出端附近,以将通过轴的材料紧密地混合。

    Process for separating off melamine from a hot synthesis gas mixture which contains melamine vapor
    334.
    发明授权
    Process for separating off melamine from a hot synthesis gas mixture which contains melamine vapor 失效
    从含有蒸馏水的热合成气混合物中分离出甲酚的方法

    公开(公告)号:US3697519A

    公开(公告)日:1972-10-10

    申请号:US3697519D

    申请日:1970-12-09

    Applicant: STAMICARBON

    CPC classification number: C07D251/62

    Abstract: A process relating to the separation of melamine from hot synthesis gas mixtures is described, wherein such gases are contacted directly with a urea melt containing ammonium carbamate, so that the desublimation heat released as the melamine is converted from the vapor to the solid state is utilized for the decomposition of the ammonium carbamate to release ammonia and carbon dioxide.

    Abstract translation: 描述了与热合成气混合物分离三聚氰胺的方法,其中这种气体与含有氨基甲酸铵的尿素熔体直接接触,从而利用三聚氰胺从蒸汽转化成固体状态释放的散发热 用于分解氨基甲酸铵以释放氨和二氧化碳。

    Preparation of (2-cyanoethyl) ketones
    336.
    发明授权
    Preparation of (2-cyanoethyl) ketones 失效
    (2-氰基乙基)酮的制备

    公开(公告)号:US3686262A

    公开(公告)日:1972-08-22

    申请号:US3686262D

    申请日:1970-09-15

    Applicant: STAMICARBON

    CPC classification number: C07C255/00

    Abstract: A PROCESS FOR THE PREPARATION OF (2-CYANOETHYL) KETONES BY THE HYDROLYSIS OF THE CORRESPONDING (2-CYANOETHYL)-N-SUBSITUTED KETOIMINE WITH THE SUBSEQUENT RECOVERY OF A PRIMARY AMINE, THE PRIMARY AMINE BOILING AT A LOWER TEMPERATURE THAN WATER AND/OR FORMING WITH WATER AN AZEOTROPE BOILING AT A LOWER TEMPERATURE THAN WATER AND CARRYING ON ITS NITROGEN ATOM THE SAME GROUP AS THAT OF THE NITROGEN ATOM OF THE CORRESPONDING KETOIMINE IS DISCLOSED. WHEN THE RESULTING KETONE IS 5-CYANOPENTANONE-2 THIS MAY BE USED AS A STARTING PRODUCT FOR THE PREPARATION OF A-PIPECOLINE.

    Process for urea production in combination with ammonia synthesis
    338.
    发明授权
    Process for urea production in combination with ammonia synthesis 失效
    乌拉圭生产与氨合成合成的方法

    公开(公告)号:US3674847A

    公开(公告)日:1972-07-04

    申请号:US3674847D

    申请日:1969-03-17

    Applicant: STAMICARBON

    CPC classification number: C07C273/10 C01C1/0488 Y02P20/52

    Abstract: A process for the production of urea from ammonia and carbon dioxide, combined with the preparation of ammonia, is disclosed wherein ammonium carbamate in the urea solution produced is removed from said urea solution by subjecting the urea solution to two stripping stages. The first stripping stage uses the urea synthesis starting gas, which contains hydrogen, nitrogen and carbon dioxide. The second stripping stage, which is at substantially the same pressure as the first stripping stage, uses a gas containing at least one of the components needed in the ammonia synthesis. This second stripping gas is substantially free of ammonia and carbon dioxide. The disclosed process has the advantage, compared to prior processes, that the stripping gases need not be compressed at relatively high temperatures.

    Abstract translation: 公开了一种从氨和二氧化碳生产尿素以及氨的制备方法,其中通过使尿素溶液进行两个汽提阶段从所述尿素溶液中除去生成的尿素溶液中的氨基甲酸铵。 第一个汽提阶段使用含有氢气,氮气和二氧化碳的尿素合成起始气体。 与第一汽提阶段基本上相同的压力的第二汽提级使用包含氨合成中所需的至少一种组分的气体。 该第二汽提气体基本上不含氨和二氧化碳。 所公开的方法与现有技术相比具有在较高温度下不需要压缩汽提气体的优点。

    Fillers for metallized polyamides
    339.
    发明授权
    Fillers for metallized polyamides 失效
    用于金属化聚酰胺的填料

    公开(公告)号:US3674658A

    公开(公告)日:1972-07-04

    申请号:US3674658D

    申请日:1970-06-03

    Applicant: STAMICARBON

    Abstract: Objects composed of a metal-coated polyamide plastic, and a process for making same are disclosed in which a polyamide plastic substrate material is made by the hydrolytic polymerization of an omego lactam carried out at a temperature at least at the melting point of the polyamide material in the presence of one or more compounds soluble in the molten lactams, such as polyethers, alcohols of fatty acids having a boiling point above the lactam, organic sulphones, alkali metal halides, paraffins and silicone oils. After appropriate surface treatment of this plastic material, metal coating is deposited by precipitation and by further treatment as by electro deposition, to obtain the metal-coated polyamide plastic object.

    Abstract translation: 公开了由金属涂覆的聚酰胺塑料构成的物体及其制造方法,其中聚酰胺塑料基材通过在至少在聚酰胺材料的熔点下进行的内含子的水解聚合制得 在可溶于熔融内酰胺的一种或多种化合物存在下,例如聚醚,沸点高于内酰胺的脂肪酸的醇,有机砜,碱金属卤化物,石蜡和硅油。 在对该塑料材料进行适当的表面处理后,通过沉淀和通过电沉积进一步处理来沉积金属涂层,以获得金属涂覆的聚酰胺塑料物体。

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