Catalytic preparation of condensation products of formaldehyde
    2.
    发明授权
    Catalytic preparation of condensation products of formaldehyde 失效
    催化制备甲醛缩合产物

    公开(公告)号:US5585496A

    公开(公告)日:1996-12-17

    申请号:US570557

    申请日:1995-12-11

    CPC分类号: C07C45/75

    摘要: A process for the catalytical preparation of condensation products of formaldehyde, in which formaldehyde or a formaldehyde-forming compound is caused to undergo reaction using a catalyst which has been produced, in the presence of an auxiliary base, from a triazolium salt of formula I ##STR1## in which R.sup.1 and R.sup.3 are the same or different and stand for aliphatic groups having from 1 to 30 carbon atoms, optionally substituted aryl groups, optionally substituted aralkyl groups, and/or optionally substituted heteroaryl groups,R.sup.2 represents hydrogen, the hydroxymethylene group --CH.sub.2 OH or the hydroxy-hydroxymethylene-methylidyne group --CH(OH)(CH.sub.2 OH), andR.sup.4 denotes hydrogen, a halogen atom, a nitro or cyano group, an aliphatic group having from 1 to 30 carbon atoms, an optionally substituted aryl group, an optionally substituted aralkyl group, an optionally substituted heteroaryl group, an alkoxy group --OR.sup.5, a thioether group --SR.sup.6, an amino group --NR.sup.7 R.sup.8, an acyl group--COR.sup.9 or an ester group --COOR.sup.10, where R.sup.5, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 stand for radicals such as those stated above for R.sup.1, and R.sup.10 is a C.sub.1 -C.sub.10 alkyl group or an optionally substituted aryl or aralkyl group, orR.sup.3 and R.sup.4 together form a C.sub.3 -C.sub.5 alkylene or C.sub.3 -C.sub.5 alkenylene group or a C.sub.6 -C.sub.14 alkylene group, or a C.sub.7 -C.sub.14 aralkylene or C.sub.8 -C.sub.14 aralkenylene bridging member, andA is the equivalent of an anion having one or more negative charges for electrical neutralization of the charge on the triazolium cation.

    摘要翻译: 催化制备甲醛缩合产物的方法,其中使甲醛或形成甲醛的化合物在辅助碱存在下由式I的三唑鎓盐生产的催化剂进行反应, (I)其中R1和R3相同或不同,代表具有1至30个碳原子的脂族基团,任选取代的芳基,任选取代的芳烷基和/或任选取代的杂芳基,R 2表示氢, 羟基亚甲基-CH 2 OH或羟基 - 羟基亚甲基 - 亚甲基基团-CH(OH)(CH 2 OH),R 4表示氢,卤素原子,硝基或氰基,具有1至30个碳原子的脂族基团, 取代的芳基,任选取代的芳烷基,任选取代的杂芳基,烷氧基-OR 5,硫醚基-SR 6,氨基-NR 7 R 8,酰基-C COR 9或酯gr 其中R 5,R 6,R 7,R 8和R 9分别代表上述R 1的基团,R 10是C 1 -C 10烷基或任意取代的芳基或芳烷基,或者R 3和R 4一起形成 C3-C5亚烷基或C3-C5亚烯基或C6-C14亚烷基,或C7-C14亚芳基或C8-C14芳亚烷基桥连元件,A相当于具有一个或多个负电荷用于电中和的阴离子 的三唑鎓阳离子的电荷。

    Addition products of triazolium salts
    3.
    发明授权
    Addition products of triazolium salts 失效
    三唑鎓盐的加成产物

    公开(公告)号:US5508422A

    公开(公告)日:1996-04-16

    申请号:US286221

    申请日:1994-08-05

    CPC分类号: C07C45/75

    摘要: A process for the catalytical preparation of condensation products of formaldehyde, in which formaldehyde or a formaldehyde-forming compound is caused to undergo reaction using a catalyst which has been produced, in the presence of an auxiliary base, from a triazolium salt of formula I ##STR1## in which R.sup.1 and R.sup.3 are the same or different and stand for aliphatic groups having from 1 to 30 carbon atoms, optionally substituted aryl groups, optionally substituted aralkyl groups, and/or optionally substituted heteroaryl groups,R.sup.2 represents hydrogen, the hydroxymethylene group --CH.sub.2 OH or the hydroxy-hydroxymethylene-methylidyne group --CH(OH)(CH.sub.2 OH), andR.sup.4 denotes hydrogen, a halogen atom, a nitro or cyano group, an aliphatic group having from 1 to 30 carbon atoms, an optionally substituted aryl group, an optionally substituted aralkyl group, an optionally substituted heteroaryl group, an alkoxy group --OR.sup.5, a thioether group --SR.sup.6, an amino group --NR.sup.7 R.sup.8, an acyl group --COR.sup.9 or an ester group --COOR.sup.10, where R.sup.5, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 stand for radicals such as those stated above for R.sup.1, and R.sup.10 is a C.sub.1 -C.sub.30 alkyl group or an optionally substituted aryl or aralkyl group, orR.sup.3 and R.sup.4 together form a C.sub.3 -C.sub.5 alkylene or C.sub.3 -C.sub.5 alkenylene group or a C.sub.6 -C.sub.14 arylene group, or a C.sub.7 -C.sub.14 aralkenylene or C.sub.8 -C.sub.14 aralkenylene bridging member, andA is the equivalent of an anion having one or more negative charges for electrical neutralization of the charge on the triazolium cation.

    摘要翻译: 催化制备甲醛缩合产物的方法,其中使甲醛或形成甲醛的化合物在辅助碱存在下由式I的三唑鎓盐生产的催化剂进行反应, (I)其中R1和R3相同或不同,代表具有1至30个碳原子的脂族基团,任选取代的芳基,任选取代的芳烷基和/或任选取代的杂芳基,R 2表示氢, 羟基亚甲基-CH 2 OH或羟基 - 羟基亚甲基 - 亚甲基基团-CH(OH)(CH 2 OH),R 4表示氢,卤素原子,硝基或氰基,具有1至30个碳原子的脂族基团, 取代的芳基,任选取代的芳烷基,任选取代的杂芳基,烷氧基-OR 5,硫醚基-SR 6,氨基-NR 7 R 8,酰基-COR 9或酯g 其中R 5,R 6,R 7,R 8和R 9为R 1,R 10为C 1 -C 30烷基或任选取代的芳基或芳烷基的基团,或者R 3和R 4一起形成 C 3 -C 5亚烷基或C 3 -C 5亚烯基或C 6 -C 14亚芳基或C 7 -C 14亚链烯基或C 8 -C 14亚烯基亚烷基桥连体,A相当于具有一个或多个负电荷的阴离子,用于电中和 三唑鎓阳离子的电荷。

    Catalytic preparation of condensation products of formaldehyde
    4.
    发明授权
    Catalytic preparation of condensation products of formaldehyde 失效
    催化制备甲醛缩合产物

    公开(公告)号:US5386062A

    公开(公告)日:1995-01-31

    申请号:US117314

    申请日:1993-09-07

    CPC分类号: C07C45/75

    摘要: A process for the catalytical preparation of condensation products of formaldehyde, in which formaldehyde or a formaldehyde-forming compound is caused to undergo reaction using a catalyst which has been produced, in the presence of an auxiliary base, from a triazolium salt of formula I ##STR1## in which R.sup.1 and R.sup.3 are the same or different and stand for aliphatic groups having from 1 to 30 carbon atoms, optionally substituted aryl groups, optionally substituted aralkyl groups, and/or optionally substituted heteroaryl groups,R.sup.2 represents hydrogen, the hydroxymethylene group --CH.sub.2 OH or the hydroxy-hydroxymethylene-methylidyne group --CH(OH)(CH.sub.2 OH), andR.sup.4 denotes hydrogen, a halogen atom, a nitro or cyano group, an aliphatic group having from 1 to 30 carbon atoms, an optionally substituted aryl group, an optionally substituted aralkyl group, an optionally substituted heteroaryl group, an alkoxy group --OR.sup.5, a thioether group --SR.sup.6, an amino group --NR.sup.7R R.sup.8, an acyl group --COR.sup.9 or an ester group --COOR.sup.10, where R.sup.5, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 stand for radicals such as those stated above for R.sup.1, and R.sup.10 is a C.sub.1 -C.sub.30 alkyl group or an optionally substituted aryl or aralkyl group, orR.sup.3 and R.sup.4 together form a C.sub.3 -C.sub.5 alkylene or C.sub.3 -C.sub.5 alkenylene group or a C.sub.6 -C.sub.14 arylene group, or a C.sub.7 -C.sub.14 aralkylene or C.sub.8 -C.sub.14 aralkenylene bridging member, andA is the equivalent of an anion having one or more negative charges for electrical neutralization of the charge on the triazolium cation.

    摘要翻译: 催化制备甲醛缩合产物的方法,其中使甲醛或形成甲醛的化合物在辅助碱存在下由式I的三唑鎓盐生产的催化剂进行反应, (I)其中R1和R3相同或不同,代表具有1至30个碳原子的脂族基团,任选取代的芳基,任选取代的芳烷基和/或任选取代的杂芳基,R 2表示氢, 羟基亚甲基-CH 2 OH或羟基 - 羟基亚甲基 - 亚甲基基团-CH(OH)(CH 2 OH),R 4表示氢,卤素原子,硝基或氰基,具有1至30个碳原子的脂族基团, 取代的芳基,任选取代的芳烷基,任选取代的杂芳基,烷氧基-OR 5,硫醚基-SR 6,氨基-NR 7 R R 8,酰基-COR 9或酯 基团-COOR 10,其中R 5,R 6,R 7,R 8和R 9代表如上对R 1所述的基团,R 10是C 1 -C 30烷基或任选取代的芳基或芳烷基,或者R 3和R 4一起形成 C 3 -C 5亚烷基或C 3 -C 5亚烯基或C 6 -C 14亚芳基或C 7 -C 14亚烷基或C 8 -C 14亚烯基亚烷基桥连基团,A相当于具有一个或多个负电荷的阴离子,用于电中和电荷 三唑鎓阳离子。

    Catalytic preparation of formaldehyde condensates
    5.
    发明授权
    Catalytic preparation of formaldehyde condensates 失效
    甲醛缩合物的催化制备

    公开(公告)号:US5298668A

    公开(公告)日:1994-03-29

    申请号:US37884

    申请日:1993-03-26

    CPC分类号: C07D249/14 C07C45/75

    摘要: Arycolaldehyde, glyceraldehyde, C.sub.4 - and C.sub.5 -sugars or mixtures thereof are prepared in a self-condensation of formaldehyde by reacting formaldehyde or a formaldehyde donor in the presence of a mesoionic catalyst of the formula ##STR1## wherein X is nitrogen or CR.sup.3, Y is sulfur or selenium or NR.sup.4, and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 can be identical or different and each can represent an aliphatic, aryl, aralkyl or heteroaryl group which is unsubstituted or which bears substituents which have only a negligible effect on the catalytic activity of said mesoionic catalyst, with the proviso that R.sup.2 together with R.sup.4 can form a C.sub.2 -C.sub.5 -alkylene or alkenylene bridge or a C.sub.6 -C.sub.14 -arylene bridge, and wherein R.sup.5 is hydrogen, the hydroxymethyl group -CH.sub.2 OH or the hydroxymethylhydroxymethyl group --CH(OH)(CH.sub.2 OH).

    摘要翻译: 甲醛,甘油醛,C4-和C5-糖或其混合物在甲醛自缩合下通过甲醛或甲醛供体在式(*化学结构*)I的介质催化剂存在下反应制备,其中X是氮 或CR 3,Y是硫或硒或NR 4,并且R 1,R 2,R 3和R 4可以相同或不同,并且各自可以表示未被取代或具有仅具有可忽略的影响的取代基的脂族,芳基,芳烷基或杂芳基 关于所述介电催化剂的催化活性,条件是R 2与R 4一起可以形成C 2 -C 5亚烷基或亚烯基桥或C 6 -C 14亚芳基桥,并且其中R 5是氢,羟甲基-CH 2 OH或 羟甲基羟甲基-CH(OH)(CH2OH)。

    Method for regenerating a zeolitic catalyst
    6.
    发明授权
    Method for regenerating a zeolitic catalyst 有权
    再生沸石催化剂的方法

    公开(公告)号:US06380119B1

    公开(公告)日:2002-04-30

    申请号:US09424854

    申请日:2000-01-13

    IPC分类号: B01J2990

    摘要: A process for regenerating a zeolite catalyst comprises the following stages: (I) Heating a partially or completely deactivated catalyst to 250-600° C. in an atmosphere which contains less than 2% by volume of oxygen, (II) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from 0.1 to 4% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof, and (III) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from more than 4 to 100% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof.

    摘要翻译: 再生沸石催化剂的方法包括以下步骤:(I)在含有少于2体积%氧气的气氛中将部分或完全失活的催化剂加热至250-600℃,(II)将催化剂处理 250至800℃,优选350至600℃,含有0.1至4体积%的供氧物质或氧气或其两种或多种的混合物的气流和 (III)在250至800℃,优选350至600℃下处理催化剂,其中气流含有超过4至100体积%的供氧物质或氧气或 其两种或更多种的混合物。

    Method for regenerating a zeolitic catalyst
    9.
    发明授权
    Method for regenerating a zeolitic catalyst 有权
    再生沸石催化剂的方法

    公开(公告)号:US06710002B2

    公开(公告)日:2004-03-23

    申请号:US10061282

    申请日:2002-02-04

    IPC分类号: B01L2990

    摘要: A process for regenerating a zeolite catalyst comprises the following stages: (I) Heating a partially or completely deactivated catalyst to 250-600° C. in an atmosphere which contains less than 2% by volume of oxygen, (II) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from 0.1 to 4% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof, and (III) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from more than 4 to 100% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof.

    摘要翻译: 再生沸石催化剂的方法包括以下步骤:(I)在含有少于2体积%氧气的气氛中将部分或完全失活的催化剂加热至250-600℃,(II)将催化剂处理 250至800℃,优选350至600℃,含有0.1至4体积%的供氧物质或氧气或其两种或多种的混合物的气流和 (III)在250至800℃,优选350至600℃下处理催化剂,其中气流含有超过4至100体积%的供氧物质或氧气或 其两种或更多种的混合物。