Process for preparing n,n'-disubstituted urea using selenium-based
catalyst
    1.
    发明授权
    Process for preparing n,n'-disubstituted urea using selenium-based catalyst 有权
    使用硒基催化剂制备n,n'-二取代脲的方法

    公开(公告)号:US6127575A

    公开(公告)日:2000-10-03

    申请号:US395388

    申请日:1999-09-13

    CPC分类号: C07C273/1809 C07C2101/14

    摘要: A process is disclosed for preparing N,N'-disubstituted urea by reacting an amine and CO/O.sub.2 mixture gas in the presence of a catalyst system comprising at least one selenium compound selected from SeO.sub.2, (CH.sub.3 O)Se(O)(OH) and (CH.sub.3 CH.sub.2 O)Se(O)(OH), and M.sub.2 CO.sub.3 (M=alkali metal) as a co-catalyst. The process enables less active aromatic amine with a low reactivity as well as an aliphatic amine to be easily transformed into disubstituted urea avoiding the use of expensive precious metal catalysts.

    摘要翻译: 公开了一种通过在包含至少一种选自SeO 2,(CH 3 O)Se(O)(OH))的硒化合物的催化剂体系存在下使胺和CO / O 2混合气体反应来制备N,N'-二取代的脲的方法, 和(CH 3 CH 2 O)Se(O)(OH)和作为助催化剂的M2CO3(M =碱金属)。 该方法使得具有低反应性的较少活性的芳族胺以及脂族胺易于转化为二取代的脲,避免使用昂贵的贵金属催化剂。

    Method for preparation of carbamates
    2.
    发明授权
    Method for preparation of carbamates 失效
    氨基甲酸酯的制备方法

    公开(公告)号:US5962721A

    公开(公告)日:1999-10-05

    申请号:US69285

    申请日:1998-04-29

    CPC分类号: C07C269/04

    摘要: A method of preparing carbamates by reacting amine with alcohol and mixed gas of CO/O.sub.2 in the presence of one or more catalyst selected from the group consisting of monovalent copper halide having the structural formula of Cu�NCMe.sub.4 !X, K�CuX.sub.2 !, �CuX(S)! (wherein X=Cl, Br, or I; S=solvent) or monovalent copper compound having carbonyl group having the structural formula of �Cu(CO)X.sub.a L.sub.b !.sub.m Y.sub.n (wherein, X=CF.sub.3 CO.sub.2, Cl, HB(pz).sub.3 (wherein, pz=pyrazoyl,C.sub.3 H.sub.3 N.sub.2), LBF.sub.2, {LBF.sub.2 =difluoro-3,3'-(trimethylenedinitrilo)bis(2-butanone oximato)borate}; L=en, diene; Y=BPh.sub.4, AsF.sub.6 ; a,b=0,1; m=1-4; n=0,1).

    摘要翻译: 在一种或多种催化剂存在下,通过使胺与醇和CO 2 O 2的混合气体反应制备氨基甲酸酯的方法,所述催化剂选自具有结构式为Cu [NCMe4] X,K [CuX2], [CuX(S)](其中X = Cl,Br或I; S =溶剂)或具有结构式为[Cu(CO)XaLb] mYn的羰基的一价铜化合物(其中,X = CF 3 CO 2, HB(pz)3(其中,pz =吡唑基,C3H3N2),LBF2,{LBF2 =二氟-3,3' - (三亚甲基二亚硝基)双(2-丁酮肟基)硼酸酯}; L =烯,二烯; Y = BPh4, AsF6; a,b = 0,1; m = 1-4; n = 0,1)。

    Method for concurrently producing 1,1,1,2-tetrafluoroethane and
pentafluoroethane
    3.
    发明授权
    Method for concurrently producing 1,1,1,2-tetrafluoroethane and pentafluoroethane 失效
    同时生产1,1,1,2-四氟乙烷和五氟乙烷的方法

    公开(公告)号:US5723700A

    公开(公告)日:1998-03-03

    申请号:US708466

    申请日:1996-09-05

    摘要: There is a method for concurrently producing 1,1,1,2-tetrafluoroethane and pentafluoroethane, which comprises (A) reacting 1,1,1-trifluoro-2-chloroethane, hydrogen fluoride and chlorine in a first reactor in the presence of flurorination catalyst at a temperature in the range of from 300.degree. C. to 450.degree. C.; (B) transfering the products of step (A) together with trichloroethylene to a second reactor and reacting them at a temperature in the range of from 200.degree. C. to 400.degree. C.; (C) separating 1,1,1,2-tetrafluoroethane and pentafluoroethane from the resultant products; and (D) feeding the remaining products from step (C) back to the first reactor, wherein the molar ratio of chlorine/1,1,1-trifluoro-2-chloroethanethe in step (A) is in the range of from 0.001 to 0.05

    摘要翻译: 有一种同时生产1,1,1,2-四氟乙烷和五氟乙烷的方法,该方法包括(A)在第一反应器中在氟化物存在下使1,1,1-三氟-2-氯乙烷,氟化氢和氯反应 催化剂在300℃至450℃的温度范围内。 (B)将步骤(A)的产物与三氯乙烯一起转移到第二反应器中,并在200℃至400℃的温度下反应。 (C)从所得产物中分离1,1,1,2-四氟乙烷和五氟乙烷; 和(D)将来自步骤(C)的剩余产物反馈回第一反应器,其中步骤(A)中氯/ 1,1,1-三氟-2-氯乙烷的摩尔比在0.001至 0。

    Refrigerant mixture substitute for chlorodifluoromethane
    6.
    发明授权
    Refrigerant mixture substitute for chlorodifluoromethane 失效
    制冷剂混合物代替氯二氟甲烷

    公开(公告)号:US06231780B1

    公开(公告)日:2001-05-15

    申请号:US09410058

    申请日:1999-10-01

    IPC分类号: C09K504

    摘要: A refrigerant composition useful as a substitute for chlorodifluoromethane (CHCIF2, HCFC-22). The refrigerant mixture has a first constituent of difluoromethane (CH2F2, HFC-32); a second constituent selected from perfluoropropane (C3F8, PFC-218), cyclopropane (C3H6, RC-270) and butane (C4H10, R-600); and a third constituent selected from 1,1-difluoroethane (CH3CHF2, HFC-152a), 1,1,1,2,2-pentafluoropropane (CH3CF2CF3, HFC-245cb) and bis(difluoromethyl)ether (CHF2OCHF2, HFE-134).

    摘要翻译: 用作氯代二氟甲烷(CHCIF2,HCFC-22)的替代物的制冷剂组合物。 制冷剂混合物具有二氟甲烷的第一组分(CH 2 F 2,HFC-32); 选自全氟丙烷(C3F8,PFC-218),环丙烷(C3H6,RC-270)和丁烷(C4H10,R-600)的第二种成分; 和选自1,1-二氟乙烷(CH 3 CHF 2,HFC-152a),1,1,1,2,2-五氟丙烷(CH 3 CF 2 CF 3,HFC-245cb)和双(二氟甲基)醚(CHF 2 OCH 2,HFE-134) 。

    MICRO-MACRO CHANNEL REACTOR
    9.
    发明申请
    MICRO-MACRO CHANNEL REACTOR 有权
    微通道反应器

    公开(公告)号:US20110274596A1

    公开(公告)日:2011-11-10

    申请号:US13082039

    申请日:2011-04-07

    IPC分类号: B01J8/00 B01J19/00

    摘要: Disclosed is a micro-macro channel reactor comprising: a top end plate and a bottom end plate assembled on the outskirts of the micro-macro channel reactor; a heat exchanging plate by which a heat exchanging material passes through passages thereof so that heat is transferred between the heat exchanging material and such a fluid as a reactant, a product, or a mixture thereof that passes through a catalyst plate; a catalyst plate stacked and assembled together with the heat exchanging plate and including a catalyst section containing a reaction catalyst necessary to perform a catalytic reaction of the reactant while the reactant is passing through the catalyst section; and a support plate stacked and assembled together with the catalyst plate and configured to provide passages that allows the reactant to pass through the catalyst section of the catalyst plate.

    摘要翻译: 公开了一种微宏通道反应器,包括:顶端板和底端板,其组装在微宏通道反应器的外围; 热交换材料通过其通过其中的热交换材料,使得热量在热交换材料和通过催化剂板的反应物,产物或其混合物的流体之间传递; 催化剂板与所述热交换板堆叠并组装在一起,并且包括催化剂部分,所述催化剂部分含有当所述反应物通过所述催化剂部分时进行所述反应物的催化反应所必需的反应催化剂; 以及与催化剂板堆叠并组装的支撑板,并且构造成提供允许反应物通过催化剂板的催化剂部分的通道。