Hydrogenolysis of formates
    2.
    发明授权
    Hydrogenolysis of formates 失效
    甲酸氢解

    公开(公告)号:US3947563A

    公开(公告)日:1976-03-30

    申请号:US512598

    申请日:1974-10-07

    CPC分类号: C07C29/149 C12C11/02

    摘要: Process for hydrogenolysis of an alkali metal or an alkaline earth metal salt of formic acid so as to produce methanol and a metal hydroxide corresponding to the formic acid salt wherein a catalyst of cobalt, rhenium, ruthenium, palladium, platinum or mixtures thereof is used.

    摘要翻译: 用于氢解甲酸的碱金属或碱土金属盐以制备对应于甲酸盐的甲醇和金属氢氧化物的方法,其中使用钴,铼,钌,钯,铂或其混合物的催化剂。

    Stabilized hydrogen peroxide
    4.
    发明授权
    Stabilized hydrogen peroxide 失效
    稳定的过氧化氢

    公开(公告)号:US4981662A

    公开(公告)日:1991-01-01

    申请号:US531619

    申请日:1990-06-01

    IPC分类号: C01B15/037 C09K15/30

    CPC分类号: C01B15/037

    摘要: A stable hydrogen peroxide composition is provided of from 1% to 52% by weight hydrogen peroxide and 1,10-phenanthroline. The composition may contain other conventional additives suitable for stabilizing hydrogen peroxide.

    摘要翻译: 提供了1%至52%重量的过氧化氢和1,10-菲咯啉的稳定的过氧化氢组合物。 组合物可以含有适用于稳定过氧化氢的其它常规添加剂。

    Stabilization and transport of &agr;, &bgr;-unsaturated carboxylic acid and removal of stabilizer
    6.
    发明授权
    Stabilization and transport of &agr;, &bgr;-unsaturated carboxylic acid and removal of stabilizer 失效
    稳定和运输α,β-不饱和羧酸和去除稳定剂

    公开(公告)号:US06207859B1

    公开(公告)日:2001-03-27

    申请号:US09404415

    申请日:1999-09-23

    IPC分类号: C07C5702

    CPC分类号: C07C51/47 C07C51/50 C07C57/04

    摘要: A process for inhibiting free-radical polymerization of an alpha,beta-unsaturated (&agr;,&bgr;-unsaturated) carboxylic acid, and for providing desired grade &agr;,&bgr;-unsaturated carboxylic acid for use following storage and transport is described herein. In particular, bulk storage and shipment such as with overseas transport is described. The process comprises combining the &agr;,&bgr;-unsaturated carboxylic acid with a phenolic inhibitor and a coinhibitor to form an inhibited mixture, storing the inhibited mixture, transporting the inhibited mixture, and removing the coinhibitor to provide the desired grade &agr;,&bgr;-unsaturated carboxylic acid for use. In preferred embodiments, the &agr;,&bgr;-unsaturated carboxylic acid is acrylic acid, the phenolic inhibitor is p-methoxyphenol, the coinhibitor is manganese cation, and removal of the coinhibitor is carried out using an ion exchange resin.

    摘要翻译: 本文描述了一种用于抑制α,β-不饱和(α,β-不饱和)羧酸的自由基聚合以及用于在储存和运输之后用于提供所需的等级α,β-不饱和羧酸的方法。 具体来说,大量存储和运输如海运。 该方法包括将α,β-不饱和羧酸与酚类抑制剂和联合抑制剂组合以形成抑制的混合物,储存被抑制的混合物,运输被抑制的混合物,以及除去联合抑制剂以提供所需的等级α,β-不饱和羧酸 酸使用。 在优选的实施方案中,α,β-不饱和羧酸是丙烯酸,酚类抑制剂是对甲氧基苯酚,联合抑制剂是锰阳离子,并且使用离子交换树脂进行去除联合抑制剂。

    Reversion of expoxide in the production of Hydrogen peroxide
    7.
    发明授权
    Reversion of expoxide in the production of Hydrogen peroxide 失效
    过氧化氢在过氧化氢生产中的回归

    公开(公告)号:US06180804B2

    公开(公告)日:2001-01-30

    申请号:US09151145

    申请日:1998-09-10

    IPC分类号: C07C4600

    摘要: A working solution for producing hydrogen peroxide, containing an alkylanthraguinone working compound dissolved in a solvent, is regenerated by contacting the working solution with a catalyst containing from 5% to 100% boehmite at a temperature of 25° C. to 150° C. At least a portion of the tetrahydro-alkylanthraquinone epoxide present in the working solution is converted to working compound to maintain the composition of the working solution within specified limits.

    摘要翻译: 通过使工作溶液与含有5%至100%勃姆石的催化剂在25℃至150℃的温度下接触,再生生成含有溶解在溶剂中的烷基桂环酮工作化合物的过氧化氢的工作溶液。 存在于工作溶液中的四氢 - 烷基蒽醌环氧化物的至少一部分转化为工作化合物,以将工作溶液的组成保持在规定的限度内。

    Stabilization and transport of .alpha.,.beta.-unsaturated carboxylic
acid and removal of stabilizer
    8.
    发明授权
    Stabilization and transport of .alpha.,.beta.-unsaturated carboxylic acid and removal of stabilizer 失效
    稳定和运输α,β-不饱和羧酸和去除稳定剂

    公开(公告)号:US6046357A

    公开(公告)日:2000-04-04

    申请号:US165674

    申请日:1998-10-02

    CPC分类号: C07C51/47 C07C51/50

    摘要: A process for inhibiting free-radical polymerization of an alpha,beta-unsaturated (.alpha.,.beta.-unsaturated) carboxylic acid, and for providing desired grade .alpha.,.beta.-unsaturated carboxylic acid for use following storage and transport is described herein. In particular, bulk storage and shipment such as with overseas transport is described. The process comprises combining the .alpha.,.beta.-unsaturated carboxylic acid with a phenolic inhibitor and a coinhibitor to form an inhibited mixture, storing the inhibited mixture, transporting the inhibited mixture, and removing the coinhibitor to provide the desired grade .alpha.,.beta.-unsaturated carboxylic acid for use. In preferred embodiments, the .alpha.,.beta.-unsaturated carboxylic acid is acrylic acid, the phenolic inhibitor is .rho.-methoxyphenol, the coinhibitor is manganese cation, and removal of the coinhibitor is carried out using an ion exchange resin.

    摘要翻译: 本文描述了用于抑制α,β-不饱和(α,β-不饱和)羧酸的自由基聚合以及用于提供用于储存和运输之后的所需等级α,β-不饱和羧酸的方法。 具体来说,大量存储和运输如海运。 该方法包括将α,β-不饱和羧酸与酚类抑制剂和联合抑制剂组合以形成抑制的混合物,储存受抑制的混合物,运输被抑制的混合物,并除去共抑制剂以提供所需的等级α,β-不饱和羧酸 酸使用。 在优选的实施方案中,α,β-不饱和羧酸是丙烯酸,酚类抑制剂是对甲氧基苯酚,联合抑制剂是锰阳离子,并且使用离子交换树脂进行去除联合抑制剂。

    Tin (II) stabilizer for hydrogen peroxide
    9.
    发明授权
    Tin (II) stabilizer for hydrogen peroxide 失效
    用于过氧化氢的锡(II)稳定剂

    公开(公告)号:US5078672A

    公开(公告)日:1992-01-07

    申请号:US572591

    申请日:1990-08-27

    IPC分类号: C01B15/037 C09K15/30

    CPC分类号: C01B15/037

    摘要: A method for stabilizing hydrogen peroxide and the stabilized composition are claimed employing as a stabilizer a tin (II) salt of an acid selected from the group hydrofluoric acid, C6 to C17 saturated monocarboxylic acids and C2 to C6 saturated polycarboxylic acids, preferably oxalic acid. The tin content of hydrogen peroxide prepared from a tin (II) oxalate stock solution can be reduced by filtration to less than 1 mg/l if the tin oxalate stock solution has been properly aged.

    摘要翻译: 要求使用选自氢氟酸,C 6至C 17饱和一元羧酸和C 2至C 6饱和多元羧酸,优选草酸的酸的锡(II)盐作为稳定剂来稳定过氧化氢和稳定组合物的方法。 由草酸锡(II)制备的过氧化氢的锡含量可以通过过滤降低至小于1mg / l,如果草酸锡原液已经适当老化。