Method for producing o-chloromethyl benzenecarbonyl chlorides
    11.
    发明授权
    Method for producing o-chloromethyl benzenecarbonyl chlorides 失效
    邻苯甲酰氯的制备方法

    公开(公告)号:US06734322B1

    公开(公告)日:2004-05-11

    申请号:US10130826

    申请日:2002-05-23

    IPC分类号: C07C5158

    CPC分类号: C07C51/09 C07C63/04

    摘要: The invention relates to a method for producing o-choromethyl benzenecarbonyl chlorides of formula (I), wherein R1-R4 can be the same or different and stand for hydrogen, C1-C4-alkyl, halogen or trifluoromnethyl, by converting benzocondensed lactones of formula (II), wherein R1-R4 have the aforementioned meaning, with gaseous or liquid phosgene and the dimers or trimers thereof. The inventive method is characterized in that the conversion is carried out in the presence of catalytical amounts of a Lewis acid and catalytical amounts of a phosgenation catalyst

    摘要翻译: 本发明涉及一种制备式(I)的邻氯甲基苯甲酰氯的方法,其中R 1 -R 4可以相同或不同,代表氢,C 1 -C 4 - 烷基,卤素或三氟甲基, 通过用气态或液体光气及其二聚体或三聚体转化其中R 1 -R 4具有上述含义的式(II)的苯并二化内酯。 本发明的方法的特征在于转化在催化量的路易斯酸和催化量的光气化催化剂

    Method for producing monoisocyanates and oligoisocyanates
    14.
    发明授权
    Method for producing monoisocyanates and oligoisocyanates 失效
    单异氰酸酯和低聚异氰酸酯的制备方法

    公开(公告)号:US06683204B1

    公开(公告)日:2004-01-27

    申请号:US10070393

    申请日:2002-03-04

    IPC分类号: C07C26310

    摘要: The present invention relates to a process for the preparation of aliphatic, cycloaliphatic, araliphatic and aromatic mono- and oligoisocyanates by phosgenation of the corresponding primary amines at atmospheric pressure, which comprises a) introducing a catalytic amount of a monoisocyanate (isocyanate a) into an inert solvent together with phosgene; b) adding the primary amine, and c) reacting the resulting reaction mixture with phosgene.

    摘要翻译: 本发明涉及通过在大气压下相应的伯胺的光气化制备脂族,脂环族,芳脂族和芳族单 - 和低聚异氰酸酯的方法,其包括a)将催化量的单异氰酸酯(异氰酸酯a)引入惰性 溶剂与光气一起加入; b)加入伯胺,和c)使得到的反应混合物与光气反应。

    Process for producing aldehydes by hydroformylation of olefins
    15.
    发明授权
    Process for producing aldehydes by hydroformylation of olefins 失效
    通过烯烃加氢甲酰化生产醛的方法

    公开(公告)号:US6107524A

    公开(公告)日:2000-08-22

    申请号:US101692

    申请日:1998-07-15

    摘要: A process for the preparation of aldehydes or aldehydes and alcohols by hydroformylation of olefins containing more than 3 carbon atoms comprising a hydroformylation stage, in which the olefin is hydroformylated under a pressure of from 50 to 1000 bar and at a temperature of from 50.degree. to 180.degree. C. using a rhodium catalyst that is dissolved in a homogeneous reaction medium and by extraction of the rhodium catalyst, in whicha) the hydroformylation is carried out in the presence of a rhodium complex, which exhibits, as ligand, a polydentate, organic nitrogen compound that is free from phosphorus and capable of forming complexes with Group VIII metals, which additionally contains at least one tertiary nitrogen radical that is capable of being protonized by a weak acid,b) the effluent of the hydroformylation stage is subjected to extraction with an aqueous solution of a distillable acid optionally following separation or partial separation of aldehydes and alcohols,(c) the aqueous acid extract is subjected to thermal treatment in the presence of an organic solvent or solvent mixture, which is inert under the hydroformylation conditions, with distillation of the aqueous acid, by means of which treatment the complex is deprotonized and transferred to the organic phase, and(d) the organic phase containing the catalyst complex is recycled to the hydroformylation stage.

    摘要翻译: PCT No.PCT / EP97 / 00372 Sec。 371日期:1998年7月15日 102(e)1998年7月15日PCT PCT 1997年1月28日PCT公布。 公开号WO97 / 28113 日期:1997年8月7日一种通过加氢甲酰化含有多于3个碳原子的烯烃制备醛或醛和醇的方法,该方法包括加氢甲酰化阶段,其中烯烃在50至1000巴的压力和温度下加氢甲酰化 使用溶解在均匀的反应介质中并通过萃取铑催化剂的铑催化剂,其中a)在铑配合物的存在下进行加氢甲酰化,其表现出作为 配体,多齿,有机氮化合物,其不含磷并能够与VIII族金属形成络合物,其另外含有至少一个能够被弱酸质子化的叔氮基团,b)加氢甲酰化的流出物 任选在醛和醇的分离或部分分离后,用可蒸馏的酸的水溶液萃取阶段,(c )酸性水提取物在有机溶剂或溶剂混合物存在下进行热处理,所述有机溶剂或溶剂混合物在加氢甲酰化条件下是惰性的,同时蒸馏酸水溶液,通过该处理将络合物去质子化并转移到有机溶剂 相,和(d)含有催化剂络合物的有机相再循环到加氢甲酰化阶段。

    Process for preparing unsaturated cyclic ethers
    17.
    发明授权
    Process for preparing unsaturated cyclic ethers 失效
    不饱和环醚的制备方法

    公开(公告)号:US6063939A

    公开(公告)日:2000-05-16

    申请号:US226144

    申请日:1999-01-07

    摘要: Unsaturated cyclic ethers of the formula I ##STR1## whereZ is --(CHR.sup.4).sub.q -- or --(CHR.sup.4).sub.q --O--,q is 0, 1, 2 or 3 andR.sup.1,R.sup.2,R.sup.3,R.sup.4 are hydrogen or C.sub.1 -C.sub.4 -alkylare prepared by reacting diols of the formula II ##STR2## where Z, R.sup.1, R.sup.2 and R.sup.3 are as defined above, in the liquid phase at from 150 to 300.degree. C. in the presence of a cobalt-containing supported catalyst which has not been activated by reduction before use and comprises cobalt and a noble metal selected from the group consisting of platinum, palladium, rhodium, iridium, ruthenium, osmium, rhenium or a mixture thereof applied by sol impregnation on an inert support, wherein the supported catalyst is doped with sulfur. Sulfur-doped supported catalysts comprising cobalt and noble metals are also provided.

    摘要翻译: Z为 - (CHR 4)q-或 - (CHR 4)q O - ,q为0,1,2或3且R 1,R 2,R 3,R 4为氢或C 1 -C 4烷基的式I的不饱和环醚为 通过使其中Z,R 1,R 2和R 3如上所定义的式II的二醇在150-300℃的液相中,在没有被还原活化的含钴担载催化剂存在下反应制备 并且包括钴和选自铂,钯,铑,铱,钌,锇,铼的贵金属或其通过溶胶浸渍施加到惰性载体上的混合物,其中负载型催化剂掺杂有硫。 还提供了包含钴和贵金属的硫掺杂负载型催化剂。

    PROCESS FOR PREPARING NITRIC ACID WITH A CONCENTRATION IN THE RANGE FROM 50 TO 77.8% BY WEIGHT
    19.
    发明申请
    PROCESS FOR PREPARING NITRIC ACID WITH A CONCENTRATION IN THE RANGE FROM 50 TO 77.8% BY WEIGHT 有权
    制剂浓度范围为50〜77.8%的硝酸工艺

    公开(公告)号:US20100181530A1

    公开(公告)日:2010-07-22

    申请号:US12601534

    申请日:2008-07-08

    IPC分类号: C09K3/00

    CPC分类号: C01B21/40 C01B21/262

    摘要: What is proposed is a process for preparing nitric acid with a concentration in the range from 50 to 77.8% by weight by catalytic gas phase oxidation of ammonia (1) with a superstoichiometric proportion of process air (2) to obtain a gas mixture (3) comprising NO and O2, cooling/condensation of the gas mixture (3) comprising NO and O2, in the course of which NO is oxidized further by O2 to NO2/N2O4 to obtain an aqueous solution (4) comprising nitric acid and a gas stream (5) comprising NO2/N2O4 and countercurrent absorption of the NO2/N2O4 from the gas stream (5) comprising NO2/N2O4 in process water (H2O) in an absorber (A) to obtain the nitric acid (7) with a concentration in the range from 50 to 77.8% by weight and an NOx comprising absorber offgas (6), wherein the water content of the nitric acid (7) is regulated to a concentration in the range from 50 to 77.8% by weight and the NOx content of the absorber offgas (6) to a concentration in the range from 20 to 500 ppm, by continuously measuring the water content of the process air (2) supplied to the catalytic gas phase oxidation and, as a function of this, adjusting the amount of process water (Q-H2O) fed to the absorber (A).

    摘要翻译: 提出的方法是用超化学计量比例的工艺空气(2)通过氨(1)的催化气相氧化制备浓度在50至77.8重量%范围内的硝酸的方法以获得气体混合物(3 ),其包含NO和O 2的气体混合物(3)的冷却/冷凝,其中NO通过O 2进一步氧化成NO 2 / N 2 O 4,以获得包含硝酸和气体的水溶液(4) 包含NO 2 / N 2 O 4的流(5)和来自在吸收器(A)中的处理水(H 2 O)中的包含NO 2 / N 2 O 4的气流(5)的NO 2 / N 2 O 4的逆流吸收,以获得具有浓度的硝酸 在50至77.8重量%的范围内,和包含吸收剂废气(6)的NOx,其中将硝酸(7)的含水量调节至50至77.8重量%的浓度,并且NOx含量 的吸收剂废气(6)浓度达到20〜500ppm的浓度 y测量供应到催化气相氧化的工艺空气(2)的含水量,并且作为其功能,调节进料到吸收器(A)的工艺用水(Q-H 2 O)的量。

    Method for the intrinsically safe handling of 3-chloropropyne
    20.
    发明授权
    Method for the intrinsically safe handling of 3-chloropropyne 失效
    本质安全处理3-氯丙炔的方法

    公开(公告)号:US07078574B2

    公开(公告)日:2006-07-18

    申请号:US10475213

    申请日:2002-04-17

    IPC分类号: C07C17/42

    CPC分类号: C07C17/16 C07C17/42 C07C21/22

    摘要: A method is provided for the intrinsically safe handling of 3-chloropropyne in the presence of a diluent with a boiling point ranging from −50° C. (223 K) to 200° C. (473 K) under atmospheric pressure, wherein the concentration of 3-chloropropyne in the liquid phase and in the gas phase is kept below the concentrations capable of deflagration by means of the type and amount of the diluent, the temperature and the total system pressure, together with the use of a 3-chloropropyne prepared, stored or transported in this way in the synthesis of dyestuffs, pharmaceutical and agricultural active ingredients, electroplating auxiliaries, disinfectants, steroids and growth hormones.

    摘要翻译: 在常压下,在沸点范围为-50℃(223K)至200℃(473K)的稀释剂存在下,提供了一种本质安全处理3-氯丙炔的方法,其中浓度 的3-氯丙炔在液相中和在气相中通过稀释剂的类型和量,温度和总体系压力保持低于能够爆燃的浓度,以及使用制备的3-氯丙炔 以这种方式储存或运输,合成染料,药物和农业活性成分,电镀助剂,消毒剂,类固醇和生长激素。