Process for the direct oxidation of olefins to olefin oxides
    14.
    发明授权
    Process for the direct oxidation of olefins to olefin oxides 失效
    将烯烃直接氧化成烯烃氧化物的方法

    公开(公告)号:US06309998B1

    公开(公告)日:2001-10-30

    申请号:US09458559

    申请日:1999-12-09

    IPC分类号: B01J2106

    摘要: A process and catalyst for the direct oxidation of an olefin having three or more carbon atoms, such as propylene, by oxygen to the corresponding olefin oxide, such as propylene oxide. The process involves contacting the olefin with oxygen under reaction conditions in the presence of hydrogen and in the presence of a catalyst. The catalyst comprises gold on a titanosilicate, preferably a microporous or mesoporous titanosilicate, such as, TS-1, TS-2, Ti-beta, Ti-ZSM-48, or Ti-MCM-41. Selectivity to the olefin oxide is high at good conversions of the olefin. The catalyst is readily regenerated, and the time between catalyst regenerations is long.

    摘要翻译: 用于将具有三个或更多个碳原子的烯烃(例如丙烯)通过氧直接氧化成相应的烯烃氧化物如环氧丙烷的方法和催化剂。 该方法包括在氢气存在下和催化剂存在下,在反应条件下使烯烃与氧接触。 催化剂包括钛硅酸盐上的金,优选微孔或中孔钛硅酸盐,例如TS-1,TS-2,Ti-β,Ti-ZSM-48或Ti-MCM-41。 烯烃氧化物的选择性高,烯烃转化率高。 催化剂容易再生,催化剂再生之间的时间长。

    Catalytic reforming of alkyleneamines
    15.
    发明授权
    Catalytic reforming of alkyleneamines 失效
    亚烷基胺的催化重整

    公开(公告)号:US5166442A

    公开(公告)日:1992-11-24

    申请号:US730415

    申请日:1991-07-16

    IPC分类号: C07C209/64

    CPC分类号: C07C209/64

    摘要: A process of reforming an alkyleneamine feedstock or a mixture of such feedstocks to an alkyleneamine or a mixture of alkyleneamines which is different from the feedstock or feedstock mixture. The process is catalyzed by one of the following: Group VB metal oxides, Group VB metal phosphates, Group IIA metal silicates, and tungsten oxides. For example, ethylenediamine is contacted with a catalyst of niobic acid or magnesium silicate to yield predominantly diethylenetriamine and non-cyclic triethylenetetramines; whereas high molecular weight polyethylenepolyamines are cracked by the same catalysts to mixtures of lower molecular weight linear and cyclic materials.

    摘要翻译: 将亚烷基胺原料或这些原料的混合物重整成不同于原料或原料混合物的亚烷基胺或亚烷基胺的混合物的方法。 该方法由以下之一催化:VB族金属氧化物,VB族金属磷酸盐,IIA族金属硅酸盐和钨氧化物。 例如,乙二胺与铌酸或硅酸镁的催化剂接触,主要产生二亚乙基三胺和非环状三亚乙基四胺; 而高分子量聚亚乙基多胺通过相同的催化剂裂解成低分子量线性和环状材料的混合物。

    Preparation of alcohol-extended and amine-extended piperazines
    17.
    发明授权
    Preparation of alcohol-extended and amine-extended piperazines 失效
    醇延长和胺延长哌嗪的制备

    公开(公告)号:US4983735A

    公开(公告)日:1991-01-08

    申请号:US221710

    申请日:1988-07-20

    CPC分类号: C07D295/088 C07D295/13

    摘要: A process for preparing alcohol-extended and amine-extended piperazines comprising contacting a difunctional aliphatic alcohol with a reactant amine, wherein at least one of the aliphatic alcohol or the reactant amine contains a piperazine moiety, in the presence of a catalyst containing a tungsten heteropoly acid. For example, monoethanolamine reacts with piperazine in the presence of a 12-tungstophosphoric acid catalyst to yield predominantly N-(2-aminoethyl)piperazine, which is an amine-extended piperazine.

    摘要翻译: 一种制备醇延伸和胺延伸的哌嗪的方法,包括使二官能脂肪醇与反应物胺接触,其中至少一种脂族醇或反应物胺含有哌嗪部分,在含有钨杂多酸的催化剂存在下 酸。 例如,单乙醇胺在12-钨磷酸催化剂的存在下与哌嗪反应,主要产生作为胺延伸的哌嗪的N-(2-氨基乙基)哌嗪。

    Process of preparing mixtures of polyalkylenepolyamines and
alkanolpolyamines
    18.
    发明授权
    Process of preparing mixtures of polyalkylenepolyamines and alkanolpolyamines 失效
    制备聚亚烷基多胺和链烷醇多胺的混合物的方法

    公开(公告)号:US5118851A

    公开(公告)日:1992-06-02

    申请号:US622444

    申请日:1990-12-05

    IPC分类号: C07C209/16 C07C213/02

    CPC分类号: C07C209/16 C07C213/02

    摘要: A process of preparing a mixture of polyalkylenepolyamines and alkanolpolyamines comprising contacting a difunctional aliphatic alcohol with a primary or secondary aliphatic amine in the presence of a metal silicate catalyst wherein the metal is selected from the group consisting of Groups IIA, IIIB, and the lanthanide and actinide metals. For example, monoethanolamine reacts with diethylenetriamine in the presence of magnesium silicate to yield a mixture of higher molecular weight linear and branched polyethylenepolyamines and their corresponding alkanolpolyamines. These product mixtures are useful in the formation of specialty polyurethanes.

    摘要翻译: 制备聚亚烷基多胺和链烷醇多胺的混合物的方法,包括在金属硅酸盐催化剂存在下使二官能脂族醇与伯或仲脂族胺接触,其中金属选自组IIA,IIIB和镧系元素,和 锕系金属。 例如,单乙醇胺在硅酸镁存在下与二亚乙基三胺反应,得到较高分子量的直链和支链聚亚乙基多胺及其相应的链烷醇多胺的混合物。 这些产品混合物可用于形成特种聚氨酯。

    Amination process employing group vib metal catalysts
    20.
    发明授权
    Amination process employing group vib metal catalysts 失效
    使用组合金属催化剂的胺化方法

    公开(公告)号:US4922024A

    公开(公告)日:1990-05-01

    申请号:US181622

    申请日:1988-04-14

    IPC分类号: C07C209/16

    CPC分类号: C07C209/16

    摘要: A process for preparing amines comprising contacting an alcohol with a reactant amine in the presence of hydrogen and a catalyst comprising at least one compound containing an element of Group VIB and at least one non-metallic element of Groups IIIA, IVA, and VA of the Periodic Table, the contacting occurring under conditions such that the hydroxyl moiety of the alcohol is replaced by the reactant amine to form an amine product.

    摘要翻译: 一种制备胺的方法,包括在氢气和催化剂存在下使醇与反应物胺接触,催化剂包含至少一种含有VIB族元素的化合物和至少一种IIIA,IVA和VA族的非金属元素 周期表中,在使得醇的羟基部分被反应物胺代替以形成胺产物的条件下发生接触。