Method for disposal of solid catalyst
    41.
    发明申请
    Method for disposal of solid catalyst 有权
    固体催化剂处理方法

    公开(公告)号:US20010006930A1

    公开(公告)日:2001-07-05

    申请号:US09732563

    申请日:2000-12-08

    Abstract: A method for washing a spent solid catalyst is disclosed which is characterized by washing the solid catalyst used for the reaction of generating an esterified compound in a device packed with the solid catalyst, distilling the cleaning fluid in a distilling part, and circulating the fraction obtained by the distillation to an esterification reactor. According to this invention, the existing apparatus used during the process for the production of an esterified compound can be adopted without any modification, the water by-produced in the reaction for production an esterified compound and an alcohol as the raw material for esterification can be used as the cleaning fluid, and these effective components can be recovered from the cleaning fluid. Thus, the stimulation from the offensive odor and the volatile component which has heretofore posed a problem during the removal of the solid catalyst is eliminated and the safety in terms of heath and in terms of operation is secured.

    Abstract translation: 公开了一种用于洗涤废固体催化剂的方法,其特征在于洗涤用于在装有固体催化剂的装置中产生酯化化合物的反应的固体催化剂,在蒸馏部分蒸馏清洗流体,并循环获得的馏分 通过蒸馏至酯化反应器。 根据本发明,可以采用在酯化化合物的制造方法中使用的现有装置,而不进行任何改性,在酯化反应中产生的水作为酯化原料的醇可以是 用作清洁液,并且这些有效成分可以从清洗液中回收。 因此,消除了在去除固体催化剂期间已经产生问题的令人反感的气味和挥发性成分的刺激,并且确保了健康方面和操作方面的安全性。

    Purification of 3-hydroxy-propanal
    43.
    发明授权
    Purification of 3-hydroxy-propanal 失效
    纯化3-羟基 - 丙醛

    公开(公告)号:US5986145A

    公开(公告)日:1999-11-16

    申请号:US138314

    申请日:1998-08-21

    Abstract: Cobalt or rhodium carbonyl compounds are removed from an aqueous solution of 3-hydroxypropanal by a process comprising the steps of:(a) contacting the 3-hydroxypropanal solution with oxygen under acidic conditions at a temperature within the range of about 5 to about 45.degree. C. to produce an oxidation product mixture comprising an aqueous solution of 3-hydroxypropanal, one or more water-soluble cobalt or rhodium species, and byproduct carbon monoxide;(b) removing byproduct carbon monoxide from the oxidation product mixture as it is generated; and(c) passing the oxidation product mixture in contact with an acidic ion exchange resin maintained at a temperature less than about 45.degree. C. and removing at least a portion of the soluble metal compounds from the oxidation product mixture.Such a process is useful in, for example, the manufacture of 1,3-propanediol from ethylene oxide via an intermediate 3-hydroxypropanal solution containing residual carbon dioxide and insoluble cobalt or rhodium catalyst compounds.

    Abstract translation: 通过包括以下步骤的方法从3-羟基丙醛水溶液中除去羰基钴或铑羰基化合物:(a)在酸性条件下在约5至约45℃的温度范围内使3-羟基丙醛溶液与氧接触 以产生包含3-羟基丙醛水溶液,一种或多种水溶性钴或铑物质和副产物一氧化碳的氧化产物混合物; (b)在生成氧化产物混合物时从副产物一氧化碳中除去; 和(c)使氧化产物混合物与保持在低于约45℃温度的酸性离子交换树脂接触,并从氧化产物混合物中除去至少一部分可溶性金属化合物。 这种方法可用于例如通过含有残余二氧化碳和不溶性钴或铑催化剂化合物的中间体3-羟基丙醛溶液从环氧乙烷制备1,3-丙二醇。

    Process for forming a shaped porous fluorinated polymer catalyst and the
resultant product
    47.
    发明授权
    Process for forming a shaped porous fluorinated polymer catalyst and the resultant product 失效
    用于形成成形的多孔氟化聚合物催化剂和所得产物的方法

    公开(公告)号:US4748190A

    公开(公告)日:1988-05-31

    申请号:US813130

    申请日:1985-12-24

    Inventor: William P. Carl

    Abstract: The invention is a process for making a high surface area, self-supporting catalyst suitable for use as an acid catalyst comprising:(a) at least partially polymerizing a perfluorinated monomer containing ion exchange groups convertible to an acid or salt form in a medium containing a gas-forming ingredient(s) which is present during polymerization and serves a polymerization enhancement purpose during polymerization; wherein the said gas-forming ingredient(s) is a material that will convert into a gaseous state and expand when heated; and(b) heating the polymer to a temperature sufficient to soften the polymer and sufficient to convert at least a portion of the gas-forming ingredient(s) into a gaseous state while the polymer is still in contact with at least a portion of the gas-forming ingredient(s), thereby converting the gas-forming ingredient(s) into a gas which expands the polymer and causes the formation of open and closed pores within the polymer.

    Abstract translation: 本发明是一种制备适合用作酸催化剂的高表面积自支撑催化剂的方法,其包括:(a)至少部分地将含有可转化为酸或盐形式的离子交换基团的全氟化单体在含有 在聚合期间存在的气体形成成分,并且在聚合期间用作聚合增强目的; 其中所述气体形成成分是将被转化成气态并在加热时膨胀的材料; 和(b)将聚合物加热到足以软化聚合物的温度,并且足以将至少一部分气体形成成分转化为气态,同时聚合物仍然与至少一部分 气体形成成分,从而将气体形成成分转化为膨胀聚合物并使聚合物内形成开放和闭孔的气体。

    Process for the preparation of alkyl tert.-alkyl ethers
    50.
    发明授权
    Process for the preparation of alkyl tert.-alkyl ethers 失效
    烷基叔烷基醚的制备方法

    公开(公告)号:US4330679A

    公开(公告)日:1982-05-18

    申请号:US276761

    申请日:1981-06-24

    CPC classification number: B01J31/10 B01J31/08 C07C41/06

    Abstract: In a process for the preparation of an alkyl tert.-alkyl ether by reaction of an isoolefin branched at the double bond and an alkanol in the presence of a cation exchanger, the improvement which comprises:(a) Employing as the cation exchanger a macroporous or gelatinous acid cation exchanger in the H.sup.+ form which has been charged with 0.1 to 5 grams, per one liter of dry cation exchanger, of an elementary form of a metal of sub-groups VI, VII or VIII of the periodic table of elements (Mendeleev) which cation exchanger is crosslinked with the degree of crosslinking of 2 to 65% and has a specific surface area of 5 to 750 square meters per gram on the basis of dry cation exchange resin; and(b) The reaction is carried out in the liquid phase at a temperature of 30.degree. to 140.degree. C. at a pressure of 2 to 100 bars employing a molar ratio of isoolefin to alkanol of 0.1 to 5.

    Abstract translation: 在通过在双键上分支的异烯烃与烷醇在阳离子交换剂的存在下反应制备烷基叔烷基醚的方法,其改进包括:(a)作为阳离子交换剂使用大孔 或H +形式的凝胶酸阳离子交换剂,其每一升干燥阳离子交换剂中加入0.1至5克元素周期表第VI,VII或VIII族元素金属的元素形式的元素( 门多列夫),其阳离子交换剂交联度为2〜65%,基于干阳离子交换树脂,比表面积为5〜750平方米/克; 和(b)使用异烯烃与烷醇的摩尔比为0.1至5的反应在液相中在30至140℃的温度下在2至100巴的压力下进行。

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