Process for separating solids from aqueous 1,4-butynediol solutions
    2.
    发明授权
    Process for separating solids from aqueous 1,4-butynediol solutions 失效
    从1,4-丁炔二醇溶液中分离固体的方法

    公开(公告)号:US5973213A

    公开(公告)日:1999-10-26

    申请号:US280

    申请日:1998-01-27

    摘要: Solids are separated from aqueous 1,4-butynediol solutions by passing a solids-containing aqueous butynediol solution in the downflow mode through a column and thus bringing it into contact with a solvent which has a lower density than the solids-containing butynediol solution and forms a second phase with the latter, with the solvent rising in countercurrent to the aqueous butynediol solution, the solid accumulating at the interface between the aqueous butynediol and the solvent and the solid being removed from the column by taking off a mixture of aqueous butynediol and solvent.

    摘要翻译: PCT No.PCT / EP96 / 04027 Sec。 371日期:1998年1月27日 102(e)1998年1月27日PCT PCT 1996年9月13日PCT公布。 出版物WO97 / 11044 日期1997年3月27日通过使含固体的含水丁醇二醇溶液以下流方式通过柱子将溶液与1,4-丁炔二醇溶液分离,并使其与溶剂接触,所述溶剂的密度低于固体 - 含有丁炔二醇溶液,并与后者形成第二相,其中溶剂与丁二醇水溶液逆流上升,固体积聚在丁炔二醇和溶剂之间的界面处,并且通过除去混合物从柱中除去固体 的丁炔二醇和溶剂。