HETEROGENEOUS PROMOTION OF OXIRANE HYDROFORMYLATION
    2.
    发明申请
    HETEROGENEOUS PROMOTION OF OXIRANE HYDROFORMYLATION 审中-公开
    异构促进氧化水解

    公开(公告)号:US20090163742A1

    公开(公告)日:2009-06-25

    申请号:US12337374

    申请日:2008-12-17

    IPC分类号: C07C45/00

    CPC分类号: C07C45/58 C07C47/19

    摘要: A process for making betahydroxyaldehydes such as 3-hydroxypropanal which comprises intimately contacting (a) an oxirane, (b) carbon monoxide, (c) a reducing agent such as hydrogen, (d) from about 0.01 to about 1 weight percent, basis cobalt metal, of a cobalt hydroformylation catalyst which is optionally complexed with a tertiary phosphine ligand, and (e) a heterogeneous, preferably solid, metal promoter used at a molar ratio of 0.05, preferably 0.15, to 100 moles of heterogeneous metal relative to the moles of soluble cobalt hydroformylation catalyst.

    摘要翻译: 一种制备β-羟基醛例如3-羟基丙醛的方法,其包括使(a)环氧乙烷,(b)一氧化碳,(c)还原剂如氢气,(d)约0.01至约1重量% 金属,钴加氢甲酰化催化剂,其任选与叔膦配体络合,和(e)非均相的,优选固体的金属促进剂,其摩尔比为0.05,优选0.15至100摩尔异相金属,相对于摩尔数 的可溶性羰基羰基化催化剂。

    Purification of 3-hydroxy-propanal
    4.
    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

    摘要: 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.

    摘要翻译: 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。

    Reduction of the viscosity of reactive heavy byproducts during the production of 1,3-propanediol
    5.
    发明授权
    Reduction of the viscosity of reactive heavy byproducts during the production of 1,3-propanediol 失效
    在1,3-丙二醇生产过程中降低反应性重副产物的粘度

    公开(公告)号:US07276634B2

    公开(公告)日:2007-10-02

    申请号:US10676682

    申请日:2003-10-01

    IPC分类号: C07C27/10

    摘要: The present invention is an improvement upon the process for the production of 1,3-propanediol wherein an aqueous solution of 3-hydroxy propanal is formed, catalyst, if any, used in said formation is removed from the solution, sodium hydroxide is added to the solution to neutralize any acid therein such that the pH is at least about 5, the neutralized aqueous solution is subjected to hydrogenation to produce a crude 1,3-propanediol mixture which is distilled to produce 1,3-propanediol, water, and reactive heavy components. The improvement on this process comprises replacing the sodium hydroxide with a hydroxide selected from the group consisting of ammonium hydroxide, alkali metal hydroxides other than sodium hydroxide, and alkaline earth metal hydroxides to reduce the viscosity of the reactive heavy components.

    摘要翻译: 本发明是对生产1,3-丙二醇的方法的改进,其中形成3-羟基丙醛的水溶液,从该溶液中除去所述地层中使用的催化剂(如果有的话),将氢氧化钠加入 中和其中的任何酸使其pH至少约为5的溶液,中和的水溶液进行氢化以产生粗制的1,3-丙二醇混合物,其被蒸馏以产生1,3-丙二醇,水和反应性 重组件。 该方法的改进包括用选自氢氧化铵,氢氧化钠以外的碱金属氢氧化物和碱土金属氢氧化物的氢氧化物代替氢氧化钠,以降低反应性重组分的粘度。

    Method for removal of MW176 cyclic acetal formed during the production of 1,3-propanediol
    8.
    发明授权
    Method for removal of MW176 cyclic acetal formed during the production of 1,3-propanediol 失效
    在1,3-丙二醇生产过程中形成的MW176环状缩醛的去除方法

    公开(公告)号:US06969779B2

    公开(公告)日:2005-11-29

    申请号:US10676690

    申请日:2003-10-01

    摘要: The present invention is an improvement upon the process for the production of 1,3-propanediol (PDO) wherein an aqueous solution of 3-hydroxypropanal (HPA) is formed, and the HPA is subjected to hydrogenation to produce a crude PDO mixture comprising PDO, water, MW176 acetal, and high and low volatility materials, wherein the crude PDO mixture is dried to produce a first overhead stream comprising water and some high volatility materials and a dried crude PDO mixture as a first distillate bottoms stream comprising PDO, MW176 acetal, and low volatility materials, and wherein the dried crude PDO mixture is distilled to produce a second overhead stream comprising some high volatility materials, a middle stream comprising PDO and MW176 acetal, and a second distillate bottoms stream comprising PDO and low volatility materials. The improvement on this process comprises treating the crude PDO mixture and/or the dried crude PDO mixture and/or the PDO product with an acidic zeolite, an acid form cation exchange resin, or a soluble acid to convert the MW176 cyclic acetal to more volatile materials which can be easily separated from PDO by distillation.

    摘要翻译: 本发明是制备其中形成3-羟基丙醛(HPA)的水溶液的1,3-丙二醇(PDO)的方法的改进,并且将HPA进行氢化以制备包含PDO的粗制PDO混合物 ,水,MW176缩醛和高低挥发性材料,其中将粗PDO混合物干燥以产生包含水和一些高挥发性材料的第一塔顶料流,以及干燥的粗PDO混合物作为包含PDO,MW176缩醛的第一馏出物塔底料流 和低挥发性材料,并且其中将干燥的粗PDO混合物蒸馏以产生包含一些高挥发性材料的第二塔顶料流,包含PDO和MW176缩醛的中间料流和包含PDO和低挥发性材料的第二馏出物塔底料流。 该方法的改进包括用酸性沸石,酸形阳离子交换树脂或可溶性酸处理粗PDO混合物和/或干燥的粗PDO混合物和/或PDO产物,以将MW176环状缩醛转化为更易挥发的 可以通过蒸馏容易地与PDO分离的材料。

    Process for preparing alkanediols
    10.
    发明授权
    Process for preparing alkanediols 失效
    制备烷二醇的方法

    公开(公告)号:US06180838B2

    公开(公告)日:2001-01-30

    申请号:US08618734

    申请日:1996-03-20

    IPC分类号: C07C2704

    摘要: An alkanediol such as 1,3-propanediol is prepared in a process which involves reacting an alkylene oxide with carbon monoxide and hydrogen in an essentially non-water-miscible solvent in the presence of a non-phosphine-ligated rhodium catalyst and a catalyst promoter to produce an intermediate product mixture containing a hydroxyalkanal in an amount less than 15 wt %; extracting the hydroxyalkanal from the intermediate product mixture into an aqueous liquid at a temperature less than about 100° C. and separating the aqueous phase containing hydroxyalkanal from the organic phase containing rhodium catalyst; hydrogenating the hydroxyalkanal in the aqueous phase to an alkanediol; and recovering the alkanediol. The process enables the production of an alkanediol such as 1,3-propanediol in high yields and selectivity without the use of a phosphine ligand-modified rhodium catalyst.

    摘要翻译: 在包含非磷化氢连接的铑催化剂和催化剂促进剂的存在下,使烯化氧与一氧化碳和氢气在基本上不与水混合的溶剂中进行反应的方法制备了1,3-二醇, 以产生含有小于15重量%的量的羟基卡那尔的中间产物混合物; 在低于约100℃的温度下将羟基卡那酸从中间产物混合物中提取成含水液体,并将含有羟基卡那酸的水相与含铑催化剂的有机相分离; 将水相中的羟基卡那酸氢化成链烷二醇; 并回收链烷二醇。该方法能够以高产率和选择性生产链烷二醇如1,3-丙二醇,而不需要使用膦配体改性的铑催化剂。