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    • 1. 发明申请
    • PROCESS FOR PREPARING ISOPROPANOL AND 2-BUTANOL FROM THE CORRESPONDING ALKANES
    • 从相应的碱中制备异丙醇和2-丁醇的方法
    • US20100048960A1
    • 2010-02-25
    • US12374351
    • 2007-07-16
    • Georg DegenSven CroneRalf BoehlingAnsgar Gereon AltenhoffWolfgang RohdeJochen BuerkleGoetz-Peter SchindlerThomas HoltmannMarkus Schmitt
    • Georg DegenSven CroneRalf BoehlingAnsgar Gereon AltenhoffWolfgang RohdeJochen BuerkleGoetz-Peter SchindlerThomas HoltmannMarkus Schmitt
    • C07C29/04
    • C07C67/04C07C29/095Y02P20/127C07C31/10C07C31/12C07C69/06C07C69/14
    • A process for preparing alkanols (I) selected from the group consisting of isopropanol and 2-butanol from the corresponding alkanes (II) selected from the group consisting of propane and n-butane, comprising the steps of: A) providing a starting gas stream a comprising the alkane (II); B) feeding the starting gas stream a comprising the alkane (II) into a dehydrogenation zone and subjecting the alkane (II) to a dehydrogenation to the alkene (III) to obtain a product gas stream b comprising the alkene (III) and unconverted alkane (II), with or without high boilers, steam, hydrogen and low boilers; C) at least compressing product gas stream b, optionally separating product gas stream b into an aqueous phase c1, a phase c2 comprising the alkene (III) and the alkane (II), with or without high boilers, and a gas phase c3 comprising hydrogen and low boilers; D) reacting product gas stream b or the phase c2 comprising alkene (III) and alkane (II) with an organic acid (IV) in an esterification zone to obtain a product mixture d comprising the corresponding alkyl ester (V) of the organic acid and the unconverted alkane (II); E) removing from product mixture d a gas stream e1 which comprises an alkane (II) and is recycled into the dehydrogenation zone if appropriate, and a product mixture e2 comprising the alkyl ester; F) reacting the product mixture e2 comprising the alkyl ester with water in an ester hydrolysis zone to give a product mixture f comprising the alkanol (I) and the organic acid (IV); G) removing the alkanol (I) and the organic acid (IV) from product mixture f and, if appropriate, recycling the organic acid into the esterification zone.
    • 从选自丙烷和正丁烷的相应的烷烃(II)制备选自异丙醇和2-丁醇的链烷醇(I)的方法,包括以下步骤:A)提供起始气流 a包含烷烃(II); B)将包含烷烃(II)的起始气体流(a)进料到脱氢区中并使烷烃(II)脱氢至烯烃(III),得到包含烯烃(III)和未转化烷烃的产物气流b (II),有或没有高锅炉,蒸汽,氢气和低锅炉; C)至少压缩产物气流b,任选地将产物气流b分离成水相c1,包含烯烃(III)和烷烃(II)的阶段c2,具有或不具有高锅炉,以及气相c3,其包含 氢和低锅炉; D)使产物气流b或包含烯烃(III)和烷烃(II)的相c与酯化区中的有机酸(IV)反应,得到包含相应的有机酸烷基酯(V)的产物混合物d 和未转化的烷烃(II); E)从产物混合物d除去包含烷烃(II)的气流e1,并且如果合适的话再循环到脱氢区中,以及包含烷基酯的产物混合物e2; F)在酯水解区中使包含烷基酯的产物混合物e2与水反应,得到包含链烷醇(I)和有机酸(IV)的产物混合物f; G)从产物混合物f中除去链烷醇(I)和有机酸(IV),如果合适,将有机酸再循环到酯化区。
    • 2. 发明申请
    • Process for Producing Trioxane and at Least One Comonomer
    • 生产三恶烷和至少一种共聚单体的方法
    • US20080283384A1
    • 2008-11-20
    • US12091976
    • 2006-10-27
    • Neven LangRalf BoehlingAchim StammerJan OldenburgMarkus SiegertEckhard Stroefer
    • Neven LangRalf BoehlingAchim StammerJan OldenburgMarkus SiegertEckhard Stroefer
    • C08G2/10B01D3/34C07D317/12C07D323/06
    • C08G2/10C07D317/12C07D323/06C08G2/20Y02P20/127Y02P20/582
    • The invention relates to a process for preparing trioxane and at least one comonomer for preparing (co)polymers based on trioxane, in which, in a first step, formaldehyde the at least one comonomer reactant are reacted in aqueous solution to give trioxane and comonomer, to obtain a reaction mixture A1 comprising trioxane, comonomer, formaldehyde and water, with or without comonomer reactant. In a second step, the reaction mixture A1 is distilled in a first distillation stage at a first pressure to obtain a stream B1 enriched in trioxane and comonomer and a stream B2 comprising essentially water and formaldehyde, with or without comonomer reactant. In a third step, stream B1 is distilled in a second distillation stage at a pressure which is above the pressure of the first distillation stage to obtain a stream C1 comprising trioxane, comonomer and water and a product stream C2 consisting essentially of comonomer and trioxane.
    • 本发明涉及一种制备三恶烷和至少一种共聚单体的方法,该共聚单体用于制备基于三恶烷的(共)聚合物,其中在第一步中,甲醛将至少一种共聚单体反应物在水溶液中反应得到三恶烷和共聚单体, 得到含有或不含共聚单体反应物的三恶烷,共聚单体,甲醛和水的反应混合物A 1。 在第二步中,将反应混合物A 1在第一压力下在第一蒸馏阶段进行蒸馏,以获得富含三恶烷和共聚单体的物流B 1和基本上含有水和甲醛的物流B 2,具有或不含共聚单体反应物。 在第三步骤中,在第二蒸馏阶段,在高于第一蒸馏阶段的压力的压力下蒸馏出料流B 1,以获得包含三恶烷,共聚单体和水的料流C 1和基本上由共聚单体组成的产物流C 2 和三恶烷。
    • 3. 发明授权
    • Process for preparing isocyanates in the gas phase
    • 在气相中制备异氰酸酯的方法
    • US08487127B2
    • 2013-07-16
    • US13035166
    • 2011-02-25
    • Torsten MattkeRalf BoehlingCarsten KnoescheVanessa Simone Lehr
    • Torsten MattkeRalf BoehlingCarsten KnoescheVanessa Simone Lehr
    • C07C263/10
    • C07C263/10C07C265/14
    • The invention relates to a process for preparing isocyanates by reacting the corresponding amines with phosgene in the gas phase, in the presence or absence of an inert medium, which comprises the following steps: (a) vaporization of the amine in a vaporizer, (b) superheating of the amine, (c) mixing of the gaseous amine with the phosgene and introduction into a reaction zone, (d) reaction of amine and phosgene to give isocyanate in the reaction zone, with a reaction mixture comprising isocyanate and hydrogen chloride being formed, (e) cooling of the reaction mixture comprising isocyanate and hydrogen chloride, wherein the vaporizer comprises a vessel in which tubes through which a heating medium flows are comprised, where number and diameter of the tubes are designed so that the tubes have a specific heat transfer area based on the volume through which the amine flows of at least 300 m2/m3.
    • 本发明涉及通过在惰性介质存在或不存在的情况下使气相中相应的胺与光气反应来制备异氰酸酯的方法,其包括以下步骤:(a)蒸发器中胺的蒸发,(b )胺的过热,(c)将气态胺与光气混合并引入反应区,(d)胺和光气在反应区中反应得到异氰酸酯,反应混合物包含异氰酸酯和氯化氢 形成(e)包含异氰酸酯和氯化氢的反应混合物的冷却,其中蒸发器包括容器,其中包含加热介质流过的管,其中管的数量和直径被设计成使得管具有特定的 基于胺流动的体积至少为300m 2 / m 3的传热面积。