Method for Producing Polyoxymethlenes
    1.
    发明申请
    Method for Producing Polyoxymethlenes 失效
    生产聚氧甲烯的方法

    公开(公告)号:US20080207865A1

    公开(公告)日:2008-08-28

    申请号:US11996235

    申请日:2006-07-13

    IPC分类号: C08G2/10

    CPC分类号: C08L59/04 C08G2/18

    摘要: Process for preparing polyoxymethylene copolymers (POMs) by a) polymerizing a reaction mixture comprising suitable main monomers and comonomers and also a polymerization initiator and, if appropriate, a regulator, b) adding a deactivator and c) removing the residual monomers, wherein the amount of compounds whose melting point at 1013 hPa is below 60° C. present in the reaction mixture at any point in time during the process is not more than 0.1% by weight, with the POM, the monomers, comonomers, polymerization initiators, deactivators and regulators not being included in the calculation.

    摘要翻译: 通过以下方法制备聚甲醛共聚物(POM)的方法:a)聚合包含合适的主要单体和共聚单体的反应混合物以及聚合引发剂,如果合适的话,聚合引发剂,如果合适的话,调节剂,b)加入失活剂和c)除去残余单体, 的化合物,其熔点为1013hPa,低于60℃,反应混合物中任何时间点在该过程中不超过0.1重量%,POM,单体,共聚单体,聚合引发剂,失活剂和 监管机构不包括在计算中。

    Method For The Production Of Butadine From N-Butane
    3.
    发明申请
    Method For The Production Of Butadine From N-Butane 有权
    从丁烷生产丁二烯的方法

    公开(公告)号:US20080097133A1

    公开(公告)日:2008-04-24

    申请号:US11721240

    申请日:2005-12-07

    IPC分类号: C07C5/333

    CPC分类号: C07C11/167 C07C5/48

    摘要: A process for preparing butadiene from n-butane, comprising the steps of A) providing a feed gas stream a comprising n-butane; B) feeding the feed gas stream a comprising n-butane into at least one first dehydrogenation zone and nonoxidatively, catalytically dehydrogenating n-butane to obtain a gas stream b comprising n-butane, 1-butene, 2-butene, butadiene and hydrogen, with or without carbon dioxide and with or without steam; C) feeding the gas stream b and an oxygenous gas into at least one second dehydrogenation zone and oxidatively dehydrogenating 1-butene and 2-butene to obtain a gas stream c comprising n-butane, butadiene, hydrogen, carbon dioxide and steam, D) compressing in at least one first compression stage and cooling the gas stream c to obtain at least one condensate stream d1 comprising water and a gas stream d2 comprising n-butane, butadiene, hydrogen, carbon dioxide and steam, E) separating the gas stream d2 by extractive distillation into a product stream e1 consisting substantially of butadiene and a stream e2 comprising n-butane, hydrogen, carbon dioxide and steam, F) compressing in at least one further compression stage and cooling the gas stream e2 to obtain at least one condensate stream f1 comprising n-butane and water, and a gas stream f2 comprising n-butane, hydrogen and carbon dioxide, G) cooling the gas stream f2 to obtain a condensate stream g1 comprising n-butane and an offgas stream g2 comprising carbon dioxide and hydrogen, H) removing water from the at least one condensate stream f1 and, if appropriate, from the condensate stream g1 by phase separation to obtain at least one recycle stream hi comprising n-butane and at least one wastewater stream h2, and recycling the at least one recycle stream h1 into the first dehydrogenation zone.

    摘要翻译: 一种从正丁烷制备丁二烯的方法,包括以下步骤:A)提供包含正丁烷的进料气流a; B)将包含正丁烷的进料气流a进料到至少一个第一脱氢区和非氧化催化脱氢的正丁烷中,以获得包含正丁烷,1-丁烯,2-丁烯,丁二烯和氢的气流b, 有或没有二氧化碳,有或没有蒸汽; C)将气流b和氧气送入至少一个第二脱氢区并使1-丁烯和2-丁烯氧化脱氢得到包含正丁烷,丁二烯,氢气,二氧化碳和蒸汽的气流c,D) 在至少一个第一压缩级中压缩并冷却气流c以获得至少一个包含水的冷凝物流d 1和包含正丁烷,丁二烯,氢气,二氧化碳和蒸汽的气流d 2,E)将气体分离 流d 2通过萃取蒸馏成基本上由丁二烯组成的产物流e 1和包含正丁烷,氢气,二氧化碳和蒸汽的流e 2,F)在至少一个另外的压缩级中压缩并冷却气流e 2 以获得包含正丁烷和水的至少一个冷凝物流f 1和包含正丁烷,氢气和二氧化碳的气流f 2,G)冷却气流f 2以获得包含正丁烷和水的冷凝物流g 1, 丁烷和 废气流g 2包括二氧化碳和氢气,H)从至少一个冷凝物流f 1中除去水,如果合适的话,通过相分离从冷凝物流g 1中除去水,以获得至少一个包含正丁烷和 至少一个废水流h 2,并将所述至少一个循环流h 1再循环到第一脱氢区中。

    Method for the production of polymer foams based on reactive polycondensation resins
    4.
    发明申请
    Method for the production of polymer foams based on reactive polycondensation resins 审中-公开
    基于活性缩聚树脂生产聚合物泡沫的方法

    公开(公告)号:US20070197744A1

    公开(公告)日:2007-08-23

    申请号:US10593419

    申请日:2005-03-17

    IPC分类号: C08F2/00

    摘要: Process for producing polymer foams derived from reactive polycondensation resins and having a maximum pore diameter of 1 μm, which comprises: 1) preparing a gelable mixture of the reactive polycondensation resin in a solvent or dispersion medium, 2) preparing an aqueous dispersion comprising polymer particles, 3) mixing the mixture from step 1) with the dispersion from step 2) to give a water-containing gel, and 4) drying the water-containing gel to give the polymer foam, with drying in step 4) being carried out at a pressure and a temperature which are below the critical pressure and below the critical temperature of the liquid phase of the gel and the gel not being brought into contact with an organic liquid to replace the water present in the gel by this liquid after step 3) and before step 4).

    摘要翻译: 用于生产由反应性缩聚树脂衍生的并具有最大孔径为1μm的聚合物泡沫的方法,其包括:1)在溶剂或分散介质中制备反应性缩聚树脂的可凝胶混合物,2)制备包含聚合物颗粒 ,3)将来自步骤1)的混合物与来自步骤2)的分散体混合,得到含水凝胶,4)干燥含水凝胶得到聚合物泡沫体,在步骤4)中干燥,在 压力和温度低于临界压力并且低于凝胶的液相的临界温度,并且凝胶不与有机液体接触以在步骤3之后用该液体代替凝胶中存在的水) 并在步骤4之前)。

    Method for producing carotenoids or their precursors using genetically modified organisms of the blakeslea genus, carotenoids or their precursors produced by said method and use thereof
    6.
    发明申请
    Method for producing carotenoids or their precursors using genetically modified organisms of the blakeslea genus, carotenoids or their precursors produced by said method and use thereof 审中-公开
    使用所述方法生产的布鲁氏菌属,类胡萝卜素或其前体的遗传修饰生物来生产类胡萝卜素或其前体的方法及其用途

    公开(公告)号:US20060234333A1

    公开(公告)日:2006-10-19

    申请号:US10541750

    申请日:2004-01-09

    IPC分类号: C12P23/00 C12N15/74 C12N1/14

    摘要: The invention relates to a method for producing carotenoids or their precursors using genetically modified organisms of the Blakeslea genus. Said method comprises the following steps (i) transformation of at least one of the cells, (ii) optional homokaryotic conversion of the cells obtained in step (i) to produce cells, in which one or more genetic characteristics of the nuclei are all modified in an identical manner and said modification manifests itself in the cells, (iii) selection and reproduction of the genetically modified cell or cells, (iv) cultivation of the genetically modified cells, (v) preparation of the carotenoids produced by the genetically modified cells or the carotenoid precursor produced by said genetically modified cells. The invention also relates to carotenoids or their precursors produced according to said method and to the use thereof.

    摘要翻译: 本发明涉及使用布鲁氏菌属的转基因生物来生产类胡萝卜素或其前体的方法。 所述方法包括以下步骤:(i)至少一个细胞的转化,(ii)步骤(i)中获得的细胞的任选的同源转化以产生其中一个或多个核的遗传特征都被修饰的细胞 以相同的方式,并且所述修饰本身在细胞中,(iii)遗传修饰的细胞或细胞的选择和繁殖,(iv)遗传修饰的细胞的培养,(v)由遗传修饰的细胞产生的类胡萝卜素的制备 或由所述遗传修饰的细胞产生的类胡萝卜素前体。 本发明还涉及根据所述方法生产的类胡萝卜素或其前体及其用途。

    Method for the Production of Propene from Propane
    7.
    发明申请
    Method for the Production of Propene from Propane 审中-公开
    丙烷生产丙烯的方法

    公开(公告)号:US20090240094A1

    公开(公告)日:2009-09-24

    申请号:US11721247

    申请日:2005-12-08

    IPC分类号: C07C5/327

    CPC分类号: C07C5/3337 C07C7/04 C07C11/06

    摘要: The invention relates to a process for preparing propene from propane, comprising the steps: A) a feed gas stream a comprising propane is provided; B) the feed gas stream a comprising propane and an oxygenous gas stream are fed into a dehydrogenation zone and propane is subjected to a nonoxidative catalytic, autothermal dehydrogenation to propene to obtain a product gas stream b comprising propane, propene, methane, ethane, ethene, C4+ hydrocarbons, carbon monoxide, carbon dioxide, steam and hydrogen, C) the product gas stream b is cooled and steam is removed by condensation to obtain a steam-depleted product gas stream c, D) carbon dioxide is removed by gas scrubbing to obtain a carbon dioxide-depleted product gas stream d, E) the product gas stream d is cooled and a liquid hydrocarbon stream e1 comprising propane, propene, methane, ethane, ethene and C4+ hydrocarbons is removed by condensation to leave a residual gas stream e2 comprising methane, hydrogen and carbon monoxide, F) the liquid hydrocarbon stream e1 is fed into a first distillation zone and separated distillatively into a stream f1 comprising propane, propene and the C4+ hydrocarbons and a stream f2 comprising ethane and ethene, G) the stream f1 is fed into a second distillation zone and separated distillatively into a product stream g1 comprising propene and a stream g2 comprising propane and the C4+ hydrocarbons.

    摘要翻译: 本发明涉及一种从丙烷制备丙烯的方法,包括以下步骤:A)提供包含丙烷的原料气流a; B)将包含丙烷和含氧气流的进料气流a进料到脱氢区中,并将丙烷进行非氧化催化,自热脱氢至丙烯以获得包含丙烷,丙烯,甲烷,乙烷,乙烯的产物气流b ,C 4 +烃,一氧化碳,二氧化碳,蒸汽和氢气,C)产物气流b被冷却并通过冷凝除去蒸汽以获得蒸汽消耗产物气流c,D)通过气体洗涤除去二氧化碳 获得贫二氧化碳产物气流d,E)产物气流d被冷却,通过冷凝除去包含丙烷,丙烯,甲烷,乙烷,乙烯和C 4 +烃的液体烃流e1,以留下残余气流e2 包括甲烷,氢气和一氧化碳,F)将液体烃流e1进料到第一蒸馏区并蒸馏分离成包含丙烷,丙烯和 C4 +烃和包含乙烷和乙烯的物流F2),将物流f1进料到第二蒸馏区,并蒸馏分离成包含丙烯的产物流g1和包含丙烷和C4 +烃的料流g2。

    Method for Producing Leather
    9.
    发明申请
    Method for Producing Leather 审中-公开
    生产皮革的方法

    公开(公告)号:US20090172890A1

    公开(公告)日:2009-07-09

    申请号:US11995511

    申请日:2006-07-06

    IPC分类号: C14C1/08

    CPC分类号: C14C3/16

    摘要: Process for the production of leather, wherein, after liming, deliming and, if appropriate, pickling, animal hides are pretanned or tanned with a mixture of compounds comprising(a) at least one organic tanning agent and (b) a mixture of (b1) at least one C3-C12-dicarboxylic acid (b2) and at least one further acidic compound selected from C1-C3-mono- or C3-C12-dicarboxylic acids, or salts thereof.

    摘要翻译: 用于生产皮革的方法,其中,在石灰化,分层,如果适用的酸洗后,用包含(a)至少一种有机鞣剂和(b)(b1)的混合物的混合物混合物将动物皮革预先或鞣制 )至少一种C 3 -C 12二羧酸(b2)和至少一种选自C 1 -C 3 - 单 - 或C 3 -C 12 - 二羧酸的其它酸性化合物或其盐。