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    • 5. 发明授权
    • Process for preparing alkanediols
    • 制备烷二醇的方法
    • US5723389A
    • 1998-03-03
    • US729932
    • 1996-10-15
    • Lynn Henry SlaughPaul Richard WeiderJoseph Broun PowellJuan Pedro Arhancet
    • Lynn Henry SlaughPaul Richard WeiderJoseph Broun PowellJuan Pedro Arhancet
    • C07C29/141C07C45/58C07C47/02C07C27/00C07C27/04C07C45/00
    • C07C29/141C07C45/58
    • 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 cobalt or rhodium catalyst and a cobalt or rhodium porphyrin 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.degree. C. and separating the aqueous phase containing hydroxyalkanal from the organic phase containing cobalt 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 with the cobalt or rhodium catalyst.
    • 在一种方法中制备链烷二醇,例如在非磷化氢连接的钴或铑催化剂存在下使环氧烷与一氧化碳和氢气在基本上不与水相混溶的溶剂中反应, 钴或铑卟啉促进剂,以产生含有小于15重量%的羟基卡那定的中间产物混合物; 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,并将含羟基卡那酸的水相与含钴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,而不需要使用与钴或铑催化剂的膦配体。
    • 6. 发明授权
    • Process for preparing alkanediols
    • 制备烷二醇的方法
    • US5731478A
    • 1998-03-24
    • US729971
    • 1996-10-15
    • Lynn Henry SlaughPaul Richard WeiderJoseph Broun PowellJuan Pedro Arhancet
    • Lynn Henry SlaughPaul Richard WeiderJoseph Broun PowellJuan Pedro Arhancet
    • C07C29/141C07C45/58C07C47/62C07C27/00C07C27/04C07C45/00
    • C07C29/141C07C45/58
    • 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 cobalt or rhodium catalyst and a manganese porphyrine 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.degree. C. and separating the aqueous phase containing hydroxyalkanal from the organic phase containing cobalt 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 with the cobalt or rhodium catalyst.
    • 在一种方法中制备链烷二醇,例如在非磷化氢连接的钴或铑催化剂存在下使环氧烷与一氧化碳和氢气在基本上不与水相混溶的溶剂中反应, 锰卟吩促进剂,以产生含有小于15重量%的量的羟基卡那定的中间产物混合物; 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水性液体,并将含有羟基卡那的水相与含钴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,而不需要使用与钴或铑催化剂的膦配体。