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公开(公告)号:US20120245382A1
公开(公告)日:2012-09-27
申请号:US13513755
申请日:2010-12-03
申请人: Sabine Huber , Markus Gitter , Ulrich Cremer
发明人: Sabine Huber , Markus Gitter , Ulrich Cremer
IPC分类号: C07C51/235
CPC分类号: C07C45/38 , C07C51/235 , C07C47/06 , C07C53/08
摘要: The invention discloses a method for producing acetaldehyde and/or acetic acid, according to which method a gaseous flow, containing molecular oxygen, ethanol and at least one impurity selected from sulphur compounds, is brought into contact at a high temperature with a sulphur-resistant oxidation catalyst. The ethanol is preferably obtained from a biomass. Said sulphur-resistant oxidation catalyst comprises, for example, vanadium oxide and at least one oxide of zirconium, titanium and aluminium. In one embodiment, the gaseous flow is converted, on the sulphur-resistant oxidation catalyst, into a first oxidation mixture, acetaldehyde being the predominant oxidation product, and said first oxidation mixture is converted, on another oxidation catalyst, into a second oxidation mixture, acetic acid being the predominant oxidation product. Said other oxidation catalyst comprises, for example, a multi-metal oxide containing at least molybdenum and vanadium.
摘要翻译: 本发明公开了一种生产乙醛和/或乙酸的方法,根据该方法,含有分子氧,乙醇和至少一种选自硫化合物的杂质的气流在高温下与耐硫化物接触 氧化催化剂。 乙醇优选从生物质获得。 所述耐硫氧化催化剂包括例如氧化钒和至少一种锆,钛和铝的氧化物。 在一个实施方案中,气流在耐硫氧化催化剂上转化为第一氧化混合物,乙醛是主要的氧化产物,并且所述第一氧化混合物在另一氧化催化剂上转化为第二氧化混合物, 乙酸是主要的氧化产物。 所述其它氧化催化剂包括例如至少含有钼和钒的多金属氧化物。
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公开(公告)号:US08871959B2
公开(公告)日:2014-10-28
申请号:US13122999
申请日:2009-10-02
申请人: Markus Gitter
发明人: Markus Gitter
IPC分类号: C07D303/00 , C07D301/03 , C07D301/10
CPC分类号: C07D301/10
摘要: The present invention relates to a continuous process for producing an alkylene oxide by direct oxidation of an alkene with oxygen by reacting a mixture comprising alkene and oxygen in the presence of a silver-comprising catalyst for a run time Δt(i), wherein during the oxidation, the catalyst is additionally contacted at least once with a further mixture comprising ethanol for a run time Δt(ii), wherein the run time Δt(i)>Δt(ii).
摘要翻译: 本发明涉及通过在含银催化剂的存在下使包含烯烃和氧气的混合物在运行时间(D)(i)下反应直接氧化烯烃来生产烯化氧的连续方法,其中 在氧化期间,催化剂另外与包含乙醇的另外的混合物至少一次接触一次,持续运行时间和(d),其中运行时间和运行时间和(d)。
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公开(公告)号:US20090270640A1
公开(公告)日:2009-10-29
申请号:US12297895
申请日:2007-04-05
申请人: Torsten Maurer , Markus Gitter , Frank Rosowski
发明人: Torsten Maurer , Markus Gitter , Frank Rosowski
IPC分类号: C07D301/04
CPC分类号: C07D301/10 , B01J2219/00781
摘要: Processes for preparing ethylene oxide, the process comprising: (a) providing a catalyst-comprising microchannel reactor; (b) feeding (i) an ethylene-comprising stream and (ii) a stream comprising oxygen, an oxygen source or both, into the microchannel reactor; and (c) continuously feeding one or more components selected from the group consisting of alkyl halides, nitrogen-comprising compounds, and mixtures thereof into the microchannel reactor in a concentration of from 0.3 to 50 ppm by volume, each based on the total volume flow of all streams introduced into the reactor.
摘要翻译: 制备环氧乙烷的方法,该方法包括:(a)提供含催化剂的微通道反应器; (b)将(i)含乙烯的料流和(ii)包含氧,氧源或二者的料流进料到微通道反应器中; 和(c)以0.3至50体积ppm的浓度将一种或多种选自烷基卤化物,含氮化合物及其混合物的组分连续地供入到微通道反应器中,各自基于总体积流量 引入反应器的所有流。
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公开(公告)号:US20110196162A1
公开(公告)日:2011-08-11
申请号:US13122999
申请日:2009-10-02
申请人: Markus Gitter
发明人: Markus Gitter
IPC分类号: C07D301/10
CPC分类号: C07D301/10
摘要: The present invention relates to a continuous process for producing an alkylene oxide by direct oxidation of an alkene with oxygen by reacting a mixture comprising alkene and oxygen in the presence of a silver-comprising catalyst for a run time Δt(i), wherein during the oxidation, the catalyst is additionally contacted at least once with a further mixture comprising ethanol for a run time Δt(ii), wherein the run time Δt(i)>Δt(ii).
摘要翻译: 本发明涉及通过在含银催化剂的存在下使包含烯烃和氧气的混合物在运行时间(D)(i)下反应直接氧化烯烃来生产烯化氧的连续方法,其中 在氧化期间,催化剂另外与包含乙醇的另外的混合物至少一次接触一次,持续运行时间和(d),其中运行时间和运行时间和(d)。
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