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    • 2. 发明授权
    • Supported catalyst containing pseudo-boehmite and &ggr;-Al2O3, production of same and its use for producing 1,2-dichloroethane
    • 含有假勃姆石和γ-Al2O3的负载催化剂,生产方法及其用于生产1,2-二氯乙烷
    • US06680416B1
    • 2004-01-20
    • US09646003
    • 2000-09-11
    • Werner HebgenChristopher William RiekerRuprecht Meissner
    • Werner HebgenChristopher William RiekerRuprecht Meissner
    • C07C1900
    • B01J27/122C07C17/156C07C19/045
    • A process for preparing 1,2-dichloroethane by reacting about 2 mols of ethylene, about 4 mols of hydrogen chloride and about 1 mol of oxygen in the presence of a fixed bed of supported catalyst based on copper(II) chloride in only one reaction zone at a pressure of from 2 to 10 bar and at from 220 to 280° C., separating off 1,2-dichloroethane and water from the reaction mixture emerging from the reaction zone and passing most of the exhaust gas back into the reaction zone, where, prior to entry into the reaction zone, the exhaust gas is mixed with ethylene, hydrogen chloride and oxygen, and the oxygen content of the mixture does not exceed 7% by volume, and where the ethylene content of the gas mixture entering into the reaction zone is regulated so that the exhaust gas comprises less than 20% by volume of ethylene, where the supported catalyst used is obtained by tableting a mixture of pseudoboehmite and &ggr;-Al2O3 in a weight ratio from 4:1 to 1:4, if desired with addition of tableting auxiliaries, loading this support with the active components by saturating with a CuCl2/KCl solution so that the copper content is from 1 to 15% by weight and the potassium content is from 0.1 to 8% by weight, based in each case on the total weight of the catalyst, and then drying the catalyst at from 60 to 400° C.
    • 在仅一次反应的基于氯化铜(II)的固定床的负载型催化剂存在下,使约2摩尔乙烯,约4摩尔氯化氢和约1摩尔氧气反应制备1,2-二氯乙烷的方法 在2至10巴的压力和220至280℃的压力范围内,从反应区中排出的反应混合物中分离出1,2-二氯乙烷和水,并将大部分废气送回反应区 ,其中在进入反应区之前,将废气与乙烯,氯化氢和氧气混合,并且混合物的氧含量不超过7体积%,并且其中气体混合物的乙烯含量进入 对反应区进行调节,以使废气中的乙烯的含量少于20体积%,其中使用的负载催化剂是通过将重量比为4:1至1:4的假勃姆石和γ-Al2O3的混合物压片而得到的, 如果需要添加表 丁基辅助剂,用CuCl 2 / KCl溶液饱和将活性组分负载该载体,使铜含量为1〜15重量%,钾含量为0.1〜8重量%,基于 催化剂的总重量,然后在60-400℃干燥催化剂。
    • 5. 发明授权
    • Process for producing crystals
    • 晶体生产工艺
    • US07056356B2
    • 2006-06-06
    • US10296442
    • 2001-05-21
    • Peter Mark AllenChristoph GahnChristopher William RiekerHeinz-Walter SchneiderRobert Wagner
    • Peter Mark AllenChristoph GahnChristopher William RiekerHeinz-Walter SchneiderRobert Wagner
    • B01D9/00
    • B01D9/0022B01D9/0031B01D9/0036B01D9/0059
    • An apparatus and a process for crystallizing substances from solutions or dispersions containing these substances, in a crystallizer containing a classifying zone (3), comprise a) an inner and an outer circulation system (1; 2), the inner circulation system (1) being present in the crystallizer, the inlet of the outer circulation system (2) being connected to the inner circulation system (1) via the classifying zone (3), the outer circulation system, being present outside the crystallizer, the outlet of the outer circulation system (2) being connected to the inner circulation system (1) of the crystallizer, and a means for dissolving crystals being arranged in the outer circulation system (2), before its outlet, b) an inflow (4) for solution and/or dispersion, which inflow is present on the crystallizer or on the outer circulation system, and c) an outflow (5) for dispersions, which outflow is arranged on the crystallizer or on the outer circulation system. The novel apparatus has the special feature that a line (8) connecting the outer and inner circulation systems (1; 2) to one another and intended for transporting (recycling) dispersion and/or a line (8) for transporting (recycling) dispersion are additionally present, in which both its entrance and its exit are connected to the inner circulation system (1).
    • 一种用于在含有分级区(3)的结晶器中使含有这些物质的溶液或分散液中的物质结晶的装置和方法包括:a)内循环系统(1; 2),内循环系统(1) 存在于结晶器中,外循环系统(2)的入口经由分级区(3)连接到内循环系统(1),外循环系统存在于结晶器外部,外部出口 循环系统(2)连接到结晶器的内循环系统(1),以及用于溶解布置在外循环系统(2)中的晶体在其出口之前的装置,b)用于溶液的流入物(4) /或分散体,其流入存在于结晶器或外循环系统上,以及c)用于分散体的流出物(5),该流出物布置在结晶器或外循环系统上。 该新型装置的特征在于,将外部和内部循环系统(1; 2)彼此连接并用于运输(再循环)分散体和/或用于运输(再循环)分散体的管线(8)的管线(8) 另外存在,其入口和出口都连接到内循环系统(1)。
    • 7. 发明授权
    • Addition reaction of hydroxyl-containing compounds with alkynes or
allenes
    • 含羟基的化合物与炔或丙烯的加成反应
    • US6087538A
    • 2000-07-11
    • US92059
    • 1998-06-05
    • Joaquim Henrique TelesNorbert RieberKlaus BreuerChristopher William RiekerDirk DemuthHartmut HibstAlfred Hagemeyer
    • Joaquim Henrique TelesNorbert RieberKlaus BreuerChristopher William RiekerDirk DemuthHartmut HibstAlfred Hagemeyer
    • B01J23/06B01J37/02C07B61/00C07C41/06C07C41/08C07C41/54C07C43/15C07C43/303C07C67/04C07C69/145C07C69/16C07C43/30B01J21/08C07C2/02
    • B01J37/0203B01J23/06C07C41/06C07C41/08C07C41/54
    • Compounds of the formula I and II ##STR1## where R.sup.1 is hydrogen or an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical or an acyl radical, it being possible for these radicals to carry further substituents which do not react with acetylenes or allenes, and the radicals R, independently of one another, are hydrogen or aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radicals which may be linked to one another with formation of a ring and m is 0 or 1, are prepared by an addition reaction of a compound of the formula IIIR.sup.1 OH IIIwith an acetylene or allene of the formula IV or V ##STR2## where R.sup.1 and R have the abovementioned meanings, in the gas phase at elevated temperatures in the presence of a heterogeneous, silicate-containing catalyst, by a process in which the catalyst used contains, as an active component, an X-ray amorphous zinc silicate or cadmium silicate containing from 1 to 40% by weight, calculated as oxide, of zinc or cadmium and is obtainable by applying a zinc salt or cadmium salt of an organic acidic compound which is decomposable at below 400.degree. C., to an amorphous silica and forming the catalyst at from 50 to 500.degree. C., in the presence of a hydroxyl-containing compound selected from the group consisting of water, alkanols with up to 10 carbon atoms, diols and polyols having 2 to 6 carbon atoms and 2 or 3 OH groups and carboxylic acids of 1 to 6 carbon atoms.
    • 式I和II的化合物,其中R 1是氢或脂族,脂环族,芳脂族,芳族或杂环基或酰基,这些基团可能携带另外不与炔或炔反应的取代基和基团 R 2彼此独立地是氢或脂族,脂环族,芳脂族,芳族或杂环基团,其可以通过形成环而彼此连接并且m为0或1,其通过将化合物 式IIIR1OHIII具有式IV或V的乙炔或二烯,其中R1和R具有上述含义,在气相中,在非均相含硅酸盐催化剂存在下,在升高的温度下,通过所用催化剂包含的方法, 作为活性成分,含有以氧化物计为1〜40重量%的锌或镉的X射线无定形硅酸锌或铯硅酸盐,可通过应用 在低于400℃下可分解的有机酸性化合物的锌锌盐或镉盐加入到无定形二氧化硅中,并在50-500℃下,在含羟基化合物存在下,在选自 具有至多10个碳原子的链烷醇,具有2至6个碳原子的二醇和多元醇以及2或3个OH基团以及1至6个碳原子的羧酸组成的组。