Method for the catalytic decomposition of N2O
    1.
    发明授权
    Method for the catalytic decomposition of N2O 有权
    N2O催化分解方法

    公开(公告)号:US06743404B1

    公开(公告)日:2004-06-01

    申请号:US09674047

    申请日:2000-10-25

    IPC分类号: B01D5356

    摘要: A reactor for the catalytic oxidation of ammonia to form nitrogen oxides which has a noble metal gauze catalyst and a heat exchanger in that order in the direction of flow, a catalyst for the decomposition of N2O is located between the noble metal gauze catalyst and the heat exchanger and in a process for the catalytic decomposition of N2O in a gas mixture obtained in the preparation of nitric acid by catalytic oxidation of ammonia, where the N2O is decomposed catalytically over a catalyst of the decomposition of N2O, the hot gas mixture obtained from the catalytic oxidation of ammonia is brought to contact with the catalyst for the decomposition of N2O prior to subsequent cooling.

    摘要翻译: 用于催化氧化氨以形成氮氧化物的反应器,其具有贵金属纱布催化剂和沿流动方向依次换热器,用于分解N 2 O的催化剂位于贵金属纱布催化剂和热量之间 并且在通过氨的催化氧化在硝酸制备中获得的气体混合物中催化分解N2O的方法中,其中N 2 O在N 2 O分解催化剂上催化分解,得到的热气体混合物 在随后冷却之前,使氨的催化氧化与用于分解N 2 O的催化剂接触。

    Preparation of carbonyl compounds
    5.
    发明授权
    Preparation of carbonyl compounds 失效
    羰基化合物的制备

    公开(公告)号:US06255534B1

    公开(公告)日:2001-07-03

    申请号:US09240851

    申请日:1999-02-01

    IPC分类号: C07C4529

    摘要: Carbonyl compounds of the formula where R1 is a hydrogen atom or an alkyl radical having from 1 to 3 carbon atoms, R2 is a hydrogen atom, an unsubstituted or C1-C3-alkyl-monosubstituted to -trisubstituted C2-C4-alkenyl radical or a radical of the formula where R3 is a hydrogen atom or together with R4 is an oxygen atom, R4 is the radical OR6 or together with R3 is an oxygen atom, R5 is a hydrogen atom, an alkyl radical having from 1 to 8 carbon atoms, an unsubstituted or C1-C3-alkyl-monosubstituted to -trisubstituted C2-C4-alkenyl radical or a cyclohexyl or cyclopentyl radical and R6 is an alkyl radical having from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula —CH2—CHO or —CH2—CH2—O—CH2—CHO, are prepared by gas-phase oxidation of methanol or alcohols of the formula where R1 and R5 are as defined above, by means of an oxygen-containing gas in the presence of copper- and/or silver-containing catalysts, the catalyst system used comprising at least one phosphorus-containing copper- and/or silver-containing catalyst.

    摘要翻译: 式R 1的羰基化合物是氢原子或具有1至3个碳原子的烷基,R 2是氢原子,未取代的或C 1 -C 3烷基单取代的至三取代的C 2 -C 4 - 烯基或基团 其中R 3是氢原子或与R 4一起是氧原子,R 4是基团OR 6或与R 3一起是氧原子,R 5是氢原子,具有1至8个碳原子的烷基,未取代的 或C 1 -C 3烷基单取代至三取代的C 2 -C 4 - 烯基或环己基或环戊基,R 6是具有1至4个碳原子的烷基,环己基或环戊基或式-CH 2 -CHO或-CH2-CH2-O-CH2-CHO,通过在含铜的气体存在下,通过含氧气体,通过气相氧化甲醇或式(I)的化合物,其中R 1和R 5如上定义, 和/或含银催化剂,所用的催化剂体系包含至少一个p 含胡磷铜和/或含银催化剂。

    Process for reducing NO.sub.x from exhaust fumes
    7.
    发明授权
    Process for reducing NO.sub.x from exhaust fumes 失效
    从废气中还原NOx的方法

    公开(公告)号:US6153161A

    公开(公告)日:2000-11-28

    申请号:US77597

    申请日:1998-06-02

    摘要: NO.sub.x, where x is 1 and 2, in exhaust gases is reduced over heterogeneous catalysts with hydrocarbons, carbon monoxide, hydrogen or mixtures thereof in the presence of oxygen from 100 to 650.degree. C. and an absolute pressure of from 0.5 to 50 bar by a process in which the heterogeneous catalysts used are bimodal or polymodal compounds of the general formula IA.sub.1-x M.sub.2 O.sub.4 (I),which, if required, are doped with rare earth metals, noble metal, titanium, vanadium, molybdenum, tungsten or mixtures thereof, and whereA is magnesium, calcium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, tin or mixtures thereof,M is aluminum, gallium, indium, tin, chromium, manganese, iron, cobalt, nickel, copper, zinc or mixtures thereof andx is from 0 to 0.99,whose oxygen atoms are in a cubic close packed arrangement and A is present in the tetrahedral sites and M in the octahedral sites, it also being possible for A to occupy octahedral sites if an equivalent amount of M occupies tetrahedral sites.

    摘要翻译: PCT No.PCT / EP96 / 05532 Sec。 371日期1998年6月2日 102(e)1998年6月2日PCT 1996年12月11日PCT PCT。 公开号WO97 / 21482 日期1997年6月19日NO x,其中x为1和2,在100至650℃的氧气存在下,在具有烃,一氧化碳,氢气或其混合物的非均相催化剂中,废气中的x 1和 0.5〜50巴,其中所用的非均相催化剂是通式IA1-xM2O4(Ⅰ)的双峰型或多模态化合物,如果需要,它们掺杂有稀土金属,贵金属,钛,钒,钼, 钨或其混合物,其中A为镁,钙,钛,钒,铬,锰,铁,钴,镍,铜,锌,锡或其混合物,M为铝,镓,铟,锡,铬,锰, 铁,钴,镍,铜,锌或其混合物,x为0至0.99,其氧原子为立方密堆积排列,A存在于四面体位置,M位于八面体位置, A占据八面体网站如果一个等同的amou m的m位于四面体位置。

    Method for producing carbonyl compounds
    8.
    发明授权
    Method for producing carbonyl compounds 失效
    生产羰基化合物的方法

    公开(公告)号:US6133482A

    公开(公告)日:2000-10-17

    申请号:US331063

    申请日:1999-06-16

    CPC分类号: C07C45/39 C07C45/38

    摘要: In a process for preparing carbonyl compounds of the formula ##STR1## where R.sup.1 is a hydrogen atom or an alkyl radical having from 1 to 3 carbon atoms, R.sup.2 is a hydrogen atom or a radical of the formula ##STR2## where R.sup.3 is a hydrogen atom or together with R.sup.4 is an oxygen atom, R.sup.4 is the radical OR.sup.6 or together with R.sup.3 is an oxygen atom, R.sup.5 is a hydrogen atom, an alkyl radical having from 1 to 8 carbon atoms or a cyclohexyl or cyclopentyl radical and R.sup.6 is an alkyl radical having from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula --CH.sub.2 --CHO or --CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CHO, by gas-phase oxidation of methanol or alcohols of the formula ##STR3## where R.sup.1 and R.sup.5 are as defined above and R.sup.7 is a hydrogen atom or a radical OR.sup.8 and R.sup.8 is a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical for the formula --CH.sub.2 --CH.sub.2 --OH or --CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CH.sub.2 --OH, using an oxygen-containing gas in the presence of copper- and/or silver-containing catalysts and an amount of a phosphorus compound which is volatile under the reaction conditions which is such that the amount of phosphorus (calculated as P) is up to 20 ppm, based on the weight of alcohol used, the phosphorus is introduced within the catalyst bed.

    摘要翻译: PCT No.PCT / EP97 / 06856 Sec。 371日期1999年6月16日第 102(e)日期1999年6月16日PCT 1997年12月23日PCT公布。 公开号WO98 / 28251 日期1998年7月2日在制备下式的羰基化合物的方法中,其中R 1是氢原子或具有1至3个碳原子的烷基,R 2是氢原子或下式的基团,其中R 3是氢原子 或与R4一起为氧原子,R4为基团OR6或与R3为氧原子一起,R5为氢原子,具有1至8个碳原子的烷基或环己基或环戊基,R6为烷基 具有1至4个碳原子的基团,环己基或环戊基或式-CH2-CHO或-CH2-CH2-O-CH2-CHO的基团,通过下式的甲醇或醇的气相氧化其中R1 R 5为氢原子或OR 8,R 8为氢原子,碳原子数为1〜4的烷基,环己基或环戊基或式-CH 2 -CH 2 - 的基团, OH或-CH 2 -CH 2 -O-CH 2 -CH 2 -OH,使用含铜气体在铜和/或银-co 在催化剂和一定量的磷化合物中,在反应条件下挥发的量为磷(根据P计算)高达20ppm,基于所使用的醇的重量,磷被引入催化剂 床。

    Method for producing carbonyl compounds
    9.
    发明授权
    Method for producing carbonyl compounds 失效
    生产羰基化合物的方法

    公开(公告)号:US6072087A

    公开(公告)日:2000-06-06

    申请号:US331068

    申请日:1999-06-16

    CPC分类号: C07C45/39 C07C45/38

    摘要: The present invention relates to a process for the preparation of carbonyl compounds of the formula ##STR1## in which R.sup.1 denotes a hydrogen atom or an alkyl radical containing from 1 to 3 carbon atoms, R.sup.2 denotes a hydrogen atom or a radical of the formula ##STR2## in which R.sup.3 denotes a hydrogen atom or, together with R.sup.4, an oxygen atom, R.sup.4 denotes the radical OR.sup.6 or, together with R.sup.3, an oxygen atom, R.sup.5 denotes a hydrogen atom or an alkyl radical containing from 1 to 8 carbon atoms or a cyclohexyl or cyclopentyl radical, and R.sup.6 denotes an alkyl radical containing from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula--CH.sub.2 --CHO or --CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CHO,by gas-phase oxidation of methanol or alcohols of the formula ##STR3## in which R.sup.1 and R.sup.5 have the meanings specified above and R.sup.7 denotes a hydrogen atom or a radical OR.sup.8, and R.sup.8 denotes a hydrogen atom, an alkyl radical containing from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula --CH.sub.2 --CH.sub.2 --OH or --CH.sub.2 --CH.sub.2 --O--CH.sub.2 --CH.sub.2 --OH, using an oxygen-containing gas in the presence of a (copper and/or silver)-containing catalyst and a phosphorus compound which is volatile under the conditions of the reaction and is present in an amount such that the weight of phosphorus (calculated as P), based on the weight of alcohol used, is not more than 20 ppm, wherein the amount of phosphorus used is divided into at least two portions, of whicha) the first portion is added together with the mixture of gaseous starting materials before this reaches the catalyst bed andb) at least one further portion is added within the catalyst bed.

    摘要翻译: PCT No.PCT / EP97 / 06855 Sec。 371日期1999年6月16日第 102(e)日期1999年6月16日PCT 1997年12月9日PCT公布。 WO98 / 28250 PCT出版物 日期:1998年7月2日本发明涉及制备式中羰基化合物的方法,其中R 1表示氢原子或含有1至3个碳原子的烷基,R 2表示氢原子或 式中R 3表示氢原子,或与R 4一起形成氧原子,R 4表示基团OR 6,或与R 3一起形成氧原子,R 5表示氢原子或含有1〜8个碳原子的烷基,或 环己基或环戊基,R6表示含有1至4个碳原子的烷基,环己基或环戊基或式-CH2-CHO或-CH2-CH2-O-CH2-CHO的基团, 其中R1和R5具有上述含义的甲醇或醇的相氧化,R7表示氢原子或OR8基,R8表示氢原子,含有1至4个碳原子的烷基,环己基 或环戊基或基团 使用含氧气体在含(铜和/或银)催化剂和挥发性的磷化合物的存在下,使用含氧气体,-CH2-CH2-OH或-CH2-CH2-O-CH2-CH2-OH 反应条件以使得基于所使用的醇的重量计算的磷重量(以P计)不超过20ppm的量存在,其中使用的磷的量被分成至少两个 部分,其中a)第一部分在气体原料混合物到达催化剂床之前一起加入,以及b)在催化剂床内加入至少另外一部分。