Process for producing aldehydes
    5.
    发明授权

    公开(公告)号:US10351503B2

    公开(公告)日:2019-07-16

    申请号:US15768397

    申请日:2016-10-27

    摘要: The present invention relates generally to processes for producing aldehydes wherein an olefinic compound, carbon monoxide, and hydrogen are reacted in the presence of a solubilized rhodium-phosphorous complex. In one embodiment, the process comprises (a) receiving a vaporized aldehyde product stream downstream from a hydroformylation reactor, the vaporized aldehyde product stream comprising aldehydes, phosphorous ligand, and aldehyde condensation by-products; (b) contacting the vaporized aldehyde product stream with a partial condenser so as to condense the phosphorous ligand and the by-products, wherein up to 10 weight percent of the vaporized stream is condensed; (c) removing the condensed phosphorous ligand and the condensed by-products from the liquid condensation stream using a refining column; and (d) further processing the vaporized aldehydes from the separate refining column.

    Composition
    6.
    发明授权

    公开(公告)号:US10173960B2

    公开(公告)日:2019-01-08

    申请号:US15564927

    申请日:2016-04-08

    摘要: An object of the present invention is to provide a method for stabilizing an acrylic acid derivative, and a composition containing an acrylic acid derivative in which the acrylic acid derivative is stabilized. The present invention provides a composition comprising: (A) an acrylic acid derivative represented by Formula (I): (wherein Ra represents alkyl, fluoroalkyl, aryl that may have one or more substituents, or hydrogen; and X represents fluorine, alkyl, perfluoroalkyl, or hydrogen); and (B) aldehyde, wherein the content of acrylic acid derivative (A) is 30% (w/w) or more.

    PROCESS FOR PRODUCING ALDEHYDES
    7.
    发明申请

    公开(公告)号:US20180305285A1

    公开(公告)日:2018-10-25

    申请号:US15768397

    申请日:2016-10-27

    摘要: The present invention relates generally to processes for producing aldehydes wherein an olefinic compound, carbon monoxide, and hydrogen are reacted in the presence of a solubilized rhodium-phosphorous complex. In one embodiment, the process comprises (a) receiving a vaporized aldehyde product stream downstream from a hydroformylation reactor, the vaporized aldehyde product stream comprising aldehydes, phosphorous ligand, and aldehyde condensation by-products; (b) contacting the vaporized aldehyde product stream with a partial condenser so as to condense the phosphorous ligand and the by-products, wherein up to 10 weight percent of the vaporized stream is condensed; (c) removing the condensed phosphorous ligand and the condensed by-products from the liquid condensation stream using a refining column; and (d) further processing the vaporized aldehydes from the separate refining column.