Process for preparing 1,3-propanediol
    1.
    发明授权
    Process for preparing 1,3-propanediol 失效
    1,3-丙二醇制备方法

    公开(公告)号:US5463144A

    公开(公告)日:1995-10-31

    申请号:US316671

    申请日:1994-09-30

    摘要: 1,3-propanediol is prepared in a process comprising the steps of:contacting ethylene oxide with carbon monoxide and hydrogen in an essentially non-water-miscible solvent in the presence of an effective amount of a non-phosphine-ligated cobalt catalyst and an effective amount of a lipophilic quaternary ammonium salt at a temperature within the range of about 50.degree. to about 100.degree. C. and a, pressure within the range of about 500 to about 5000 psig, under reaction conditions effective to produce an intermediate product mixture comprising less than 15 wt % 3-hydroxypropanal;adding an aqueous liquid to said intermediate product mixture and extracting into said aqueous liquid at a temperature less than about 100.degree. C. a major portion of the 3-hydroxypropanal so as to provide an aqueous phase comprising 3-hydroxypropanal in greater concentration than the-concentration of 3-hydroxypropanal in said intermediate product mixture and an organic phase comprising at least a portion of the cobalt catalyst or a cobalt-containing derivative thereof and at least a portion of the lipophilic quaternary ammonium salt;contacting the aqueous phase comprising 3-hydroxypropanal with hydrogen in, the presence of a hydrogenation catalyst at a pressure of at least about 100 psig and a temperature during at least a portion of the hydrogenation step of at least 40.degree. C. to provide a hydrogenation product mixture comprising 1,3-propanediol.

    摘要翻译: 以包括以下步骤的方法制备1,3-丙二醇:在有效量的非磷化氢连接的钴催化剂存在下,将环氧乙烷与一氧化碳和氢气在基本上不与水相混溶的溶剂中接触, 在有效量的亲油性季铵盐的温度范围为约50至约100℃,和a,压力范围为约500至约5000psig,在有效产生中间产物混合物的反应条件下,包括 小于15重量%的3-羟基丙醛; 向所述中间产物混合物中加入水性液体,并在低于约100℃的温度下将3-羟基丙醛的主要部分萃取到所述含水液体中,以提供包含比所述中间产物混合物更高浓度的3-羟基丙醛的水相, 所述中间产物混合物中的3-羟基丙醛的浓度和包含至少一部分钴催化剂或其含钴衍生物和至少一部分亲脂性季铵盐的有机相; 在氢化催化剂存在下,在至少约100psig的压力和在至少40℃的至少一部分氢化步骤期间的温度下使包含3-羟基丙醛的水相与氢接触以提供氢化 产物混合物包含1,3-丙二醇。

    Method for solids separation in a wet oxidation type process
    2.
    发明授权
    Method for solids separation in a wet oxidation type process 失效
    湿法氧化法固体分离方法

    公开(公告)号:US4822497A

    公开(公告)日:1989-04-18

    申请号:US99773

    申请日:1987-09-22

    CPC分类号: B01D11/0203 C02F11/086

    摘要: The present invention relates to a novel aqueous-phase oxidizer and solids separator reactor. More particularly, the invention relates to a two zone pressure vessel in which precipitates and other solids fall or are sprayed from a supercritical temperature super zone into a lower temperature sub zone. The feed material may consist of various waste products which are subsequently oxidized in the super zone of the pressure vessel. The resultant brine or slurry which is found at the lower temperature sub zone of the vessel is removed via a pipe and disposed of accordingly.

    摘要翻译: 本发明涉及一种新的水相氧化器和固体分离器反应器。 更具体地说,本发明涉及一种其中沉淀物和其它固体落下或从超临界温度超级区域喷入低温子区域的双区压力容器。 进料可以由随后在压力容器的超级区域中被氧化的各种废物构成。 在容器的低温子区域中发现的所得盐水或浆料经由管道被去除并相应地处理。