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27 条记录 (耗时 0.027 秒)

    Process for the production of bis (N,N-dialkylaminoalkyl) ether
    13.
    发明授权
    Process for the production of bis (N,N-dialkylaminoalkyl) ether 失效
    制备双（N，N-二烷基氨基烷基）醚的方法

    公开(公告)号：US6150559A

    公开(公告)日：2000-11-21

    申请号：US431912

    申请日：1999-11-02

    申请人： Richard Paul Underwood ,  Hong-Xin Li

    发明人： Richard Paul Underwood ,  Hong-Xin Li

    IPC分类号： C07C213/06 ,  C07C217/08 ,  C07C85/24

    CPC分类号： C07C213/06

    摘要： An improved process for the production of bis (N,N-dialkylaminoalkyl)ether having the formula (R.sub.2 NR').sub.2 O, wherein R is methyl or ethyl and R' is ethyl or propyl, by reacting vaporized N,N-dialkylaminoalkanol of the formula R.sub.2 NR'OH, wherein R and R' are as defined above, in the presence of a heterogeneous solid basic catalyst. The bis (N,N-dialkylaminoalkyl)ether compounds, especially bis (N,N-dimethylamino)ethyl ether, are useful in the production of polyurethane foams.

    摘要翻译： 制备式（R2NR'）2O的双（N，N-二烷基氨基烷基）醚的改进方法，其中R是甲基或乙基，R'是乙基或丙基，通过使式 R2NR'OH，其中R和R'如上定义，在非均相固体碱性催化剂存在下。 双（N，N-二烷基氨基烷基）醚化合物，特别是双（N，N-二甲基氨基）乙醚，可用于生产聚氨酯泡沫体。

    Microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure and methods of making and using same
    18.
    发明授权
    Microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure and methods of making and using same 有权
    包含具有8环孔开口结构的分子筛或沸石的微孔结晶材料及其制备和使用方法

    公开(公告)号：US07883678B2

    公开(公告)日：2011-02-08

    申请号：US12572188

    申请日：2009-10-01

    申请人： Hong-Xin Li ,  William E. Cormier ,  Bjorn Moden

    发明人： Hong-Xin Li ,  William E. Cormier ,  Bjorn Moden

    IPC分类号： B01D53/56

    CPC分类号： B01D53/9418 ,  B01D2251/2062 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01J29/85 ,  B01J2229/18

    摘要： There is disclosed a hydrothermally stable microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure, such as SAPO-34 or aluminosilicate zeolite, able to retain a specific percentage of its surface area and micropore volume after treatment with heat and moisture, such as at least 80% of its surface area and micropore volume after exposure to temperatures of up to 900° C. in the presence of up to 10 volume percent water vapor for a time ranging from 1 to 16 hours. Methods of using the disclosed crystalline material, such as in the SCR of NOx in exhaust gas are also disclosed, as are methods of making such materials.

    摘要翻译： 公开了一种水热稳定的微孔结晶材料，其包含具有8环孔开放结构的分子筛或沸石，例如SAPO-34或硅铝酸盐沸石，能够在热处理后保持其表面积和微孔体积的特定百分比 和水分，例如其表面积的至少80％，并且在高达10体积％的水蒸气存在下，暴露于高达900℃的温度下，微孔体积为1至16小时。 还公开了使用所公开的结晶材料的方法，例如在排气中的NOx的SCR中，以及制造这种材料的方法。

    Triethylenediamine production using phosphate catalysts
    19.
    发明授权
    Triethylenediamine production using phosphate catalysts 失效
    三乙二胺生产使用磷酸盐催化剂

    公开(公告)号：US06316621B1

    公开(公告)日：2001-11-13

    申请号：US09533431

    申请日：2000-03-23

    申请人： Hong-Xin Li ,  Lenore Ann Emig ,  Richard Paul Underwood

    发明人： Hong-Xin Li ,  Lenore Ann Emig ,  Richard Paul Underwood

    IPC分类号： C07D295023

    CPC分类号： C07D487/08 ,  B01J27/1806

    摘要： A new method of making phosphate-based catalysts by mixing phosphoric acid with a substantially water insoluble alkaline earth metal salt such that the phosphorus to alkaline earth metal molar ratio is less than 1. The product, containing alkaline earth metal hydrogen phosphate and the starting alkaline earth metal salt, is filtered and dried. The product can be used as a catalyst in the production of triethylenediamine from, for example, mono- and di-substituted piperazines, such as hydroxyethylpiperazine and aminoethylpiperazine, ethanolamines and substituted ethanolamines, and crude hydroxyethylpiperazine containing piperazine, hydroxyethylpiperazine, bis-hydroxyethylpiperazine, and water.

    摘要翻译： 通过将磷酸与基本上不溶于水的碱土金属盐混合制成磷酸盐基催化剂的新方法，使得磷与碱土金属摩尔比小于1.含有碱土金属磷酸氢盐和起始碱性的产物 地球金属盐过滤并干燥。 该产物可用作三亚乙基二胺的制备中的催化剂，例如单 - 和二 - 取代的哌嗪如羟乙基哌嗪和氨基乙基哌嗪，乙醇胺和取代的乙醇胺，以及含有哌嗪，羟乙基哌嗪，双 - 羟乙基哌嗪和 水。