Process for the preparation of polyvalent alcohols
    1.
    发明授权
    Process for the preparation of polyvalent alcohols 失效
    制备多元醇的方法

    公开(公告)号:US06255541B1

    公开(公告)日:2001-07-03

    申请号:US09319572

    申请日:1999-06-09

    IPC分类号: C07C2704

    摘要: The invention relates to a process for the preparation of polyvalent alcohols by hydrogenation of an aldehyde. According to the invention said aldehyde is obtained by aldolisation reaction of an aldehyde containing an &agr; hydrogen atom and having the formula R1CHO, or the mixture of said aldehyde with a second different aldehyde having the formula or R2CHO, wherein R1 is selected from alkyl having 1-12 carbon atoms, cycloalkyl, aryl and aralkyl having 1-14 carbon atoms, and R2 is selected from H, alkyl having 1-12 carbon atoms, cycloalkyl, aryl and aralkyl having 1-14 carbon atoms, said aldolisation being carried out in the presence of a weak base anion exchange resin, and the hydrogenation being carried out in the presence of a solvent and a hydrogenation catalyst.

    摘要翻译: 本发明涉及通过醛的氢化制备多元醇的方法。 根据本发明,所述醛是通过含有α氢原子并具有式R 1 CHO的醛的醛缩合反应或所述醛与具有下式的R 2 CHO的第二种不同的醛的混合物获得的,其中R 1选自具有1 -12个碳原子,环烷基,芳基和具有1-14个碳原子的芳烷基,R2选自H,具有1-12个碳原子的烷基,具有1-14个碳原子的环烷基,芳基和芳烷基,所述醛醇化在 存在弱碱性阴离子交换树脂,并且在溶剂和氢化催化剂存在下进行氢化。

    Catalyst for metathetic reactions of olefins
    3.
    发明授权
    Catalyst for metathetic reactions of olefins 失效
    催化剂用于烯烃的复分解反应

    公开(公告)号:US5372982A

    公开(公告)日:1994-12-13

    申请号:US913723

    申请日:1992-07-16

    摘要: The present invention concerns a heterogeneous catalyst particularly suited to the metathetic reactions of olefins in liquid or gas phase. Such a catalyst generally includes catalytically active species of tungsten on an inorganic support. The catalyst in accordance with the invention is prepared by vaporizing a precursor of tungsten, such as tungsten oxychloride or hexachloride and then routing the vapor of the tungsten-containing reagent into a reaction space, where the vapor is brought to interaction with the support material at approximately 160.degree. to 500.degree. C. The vapor pressure of the tungsten-containing reagent is kept sufficiently high, and the duration of interaction with the support sufficiently long, to keep the amount of the reagent at least equal to the number of available bonding sites of the support, whereby the bonding of the tungsten-containing reagent to the support surface is determined by the surface properties of the support. The catalyst can be posttreated after its preparation to modify its catalytic activity. The specific activity of the catalytic metal species of the catalyst according to the invention is high.

    摘要翻译: 本发明涉及一种特别适用于液相或气相中烯烃的互变异构反应的非均相催化剂。 这种催化剂通常包括无机载体上的钨的催化活性物质。 根据本发明的催化剂通过将钨的前体如氯化氧化铈或六氯化碳蒸发,然后将含钨试剂的蒸气导入反应空间来制备,其中蒸气与载体材料相互作用 约160℃至500℃。含钨试剂的蒸汽压力保持足够高,并且与载体的相互作用持续时间足够长,以保持试剂的量至少等于可用结合位点的数量 由此通过载体的表面性质来确定含钨试剂与载体表面的结合。 催化剂在其制备后可以进行后处理以改变其催化活性。 根据本发明的催化剂的催化金属种类的比活性很高。

    Deicing Composition and Use Thereof
    4.
    发明申请
    Deicing Composition and Use Thereof 有权
    除冰组合物及其用途

    公开(公告)号:US20090039310A1

    公开(公告)日:2009-02-12

    申请号:US11884236

    申请日:2006-02-06

    申请人: Jukka Hietala

    发明人: Jukka Hietala

    IPC分类号: C09K3/18

    CPC分类号: C09K3/185 C09K3/18

    摘要: Disclosed is a novel deicing composition having improved corrosion inhibition and being obtained by mixing 89-99.98% by weight of an alkali metal formate 0.01-6% by weight of an alkali metal silicate and 0.01-5% by weight of a C4-C19 alkyl carboxylic acid, said weight percentages being calculated on dry substances.

    摘要翻译: 公开了一种具有改进的腐蚀抑制作用的新型除冰组合物,其通过将89-99.98重量%的0.01-6重量%的碱金属甲酸盐和0.01-5重量%的C 4 -C 19烷基 羧酸,所述重量百分比是根据干物质计算的。

    Deicing composition and use thereof
    5.
    发明授权
    Deicing composition and use thereof 有权
    除冰组合物及其用途

    公开(公告)号:US07628934B2

    公开(公告)日:2009-12-08

    申请号:US11884236

    申请日:2006-02-06

    申请人: Jukka Hietala

    发明人: Jukka Hietala

    IPC分类号: C09K3/18

    CPC分类号: C09K3/185 C09K3/18

    摘要: Disclosed is a novel deicing composition having improved corrosion inhibition and being obtained by mixing 89-99.98% by weight of an alkali metal formate 0.01-6% by weight of an alkali metal silicate and 0.01-5% by weight of a C4-C19 alkyl carboxylic acid, said weight percentages being calculated on dry substances.

    摘要翻译: 公开了一种具有改进的腐蚀抑制作用的新型除冰组合物,其通过将89-99.98重量%的0.01-6重量%的碱金属甲酸盐和0.01-5重量%的C 4 -C 19烷基 羧酸,所述重量百分比是根据干物质计算的。

    METHOD FOR RECOVERY OF ORGANIC ACID FROM DILUTE AQUEOUS SOLUTION
    8.
    发明申请
    METHOD FOR RECOVERY OF ORGANIC ACID FROM DILUTE AQUEOUS SOLUTION 审中-公开
    从稀释水溶液中回收有机酸的方法

    公开(公告)号:US20130331601A1

    公开(公告)日:2013-12-12

    申请号:US13992343

    申请日:2011-12-09

    IPC分类号: C07C51/493

    摘要: The present invention relates to a method and an arrangement for recovery of at least one organic acid from a dilute aqueous solution thereof. In this method a complex between said organic acid and an extractant is formed by contacting the solution with a reactive extractant and dissolving the formed complex into said extractant thus forming an extractant phase. The organic acid is removed from the formed complex by esterification using an alcohol.

    摘要翻译: 本发明涉及一种从其稀水溶液中回收至少一种有机酸的方法和装置。 在该方法中,通过使溶液与反应性提取剂接触并将形成的络合物溶解在所述萃取剂中形成萃取相,形成所述有机酸和萃取剂之间的络合物。 使用醇通过酯化从形成的络合物中除去有机酸。