PROCESS OF PRODUCING 1,4-BUTANEDIOL
    1.
    发明申请
    PROCESS OF PRODUCING 1,4-BUTANEDIOL 审中-公开
    生产1,4-丁二醇的方法

    公开(公告)号:WO2014170759A2

    公开(公告)日:2014-10-23

    申请号:PCT/IB2014001279

    申请日:2014-04-09

    Abstract: A process produces 1,4-butanediol by purifying 1,4-butanediol originated from a fermentation broth, by which process 1,4-butanediol having properties suited as a material of producing a polyester is obtained, which 1,4-butanediol enables to reduce by-production of tetrahydrofuran during the esterification reaction and to reduce the delay in polymerization. The process of producing 1,4-butanediol includes adding an alkaline substance other than an ammonia or an amine to an aqueous 1,4-butanediol-containing solution originated from a fermentation broth; distilling the resulting mixture; and recovering a 1,4-butanediol- containing solution from the vapor flow.

    Abstract translation: 一种方法是通过纯化发酵液中的1,4-丁二醇来纯化生产1,4-丁二醇的方法,通过该方法可得到具有适合作为生产聚酯材料的性能的1,4-丁二醇,该1,4-丁二醇可使 在酯化反应期间减少四氢呋喃的副产物并减少聚合的延迟。 生产1,4-丁二醇的方法包括将不同于氨或胺的碱性物质加入到发酵液中的含1,4-丁二醇的水溶液中; 蒸馏所得混合物; 并从蒸气流中回收含有1,4-丁二醇的溶液。

    Filter device
    5.
    发明专利

    公开(公告)号:AU2018377865B2

    公开(公告)日:2024-01-11

    申请号:AU2018377865

    申请日:2018-11-29

    Abstract: [Problem] To provide a filter device capable of stably filtering, at a fixed flow rate, a liquid to be treated. [Solution] This filter device comprises: one or a connected plurality of first units, each comprising a first separation membrane part that separates a liquid to be treated in a first storage tank into a first filtered liquid and a first non-filtered liquid, a first takeout tube that takes out the first non-filtered liquid, a first adjustment unit that keeps the flow rate of the first filtered liquid substantially constant, and a first liquid level meter that detects the liquid level in the first storage tank; a second unit comprising a second separation membrane that separates a storage liquid in a second storage tank in which the first filtered liquid is accumulated into a second filtered liquid and a second non-filtered liquid, a second takeout tube that takes out the second non-filtered liquid, a second adjustment unit that keeps the flow rate of the second filtered liquid substantially constant, and a second liquid level meter that detects the liquid level in the second storage tank; a first control unit that controls the liquid level in the first storage tank on the basis of a measurement value from two connected first units, or a measurement value from a connected first unit and second unit; and a second control unit that controls the liquid level in the second storage tank on the basis of a measurement value from the second unit.

    ALCOHOL PRODUCTION METHOD
    9.
    发明专利

    公开(公告)号:CA2895476C

    公开(公告)日:2021-06-15

    申请号:CA2895476

    申请日:2013-12-18

    Abstract: 81789115 Abstract An alcohol production method whereby high quality alcohol can be easily and effectively produced includes a step in which an alcohol solution, which contains sugar and/or sugar alcohol as an impurity and an alcohol other than sugar alcohol as a main component, has the sugar and/or sugar alcohol adsorptively removed therefrom by contacting the alcohol solution with one type or a mixture of two or more types of adsorbents selected from zeolite, an ion-exchange resin, silica alumina, and alumina. Date Recue/Date Received 2020-04-09

Patent Agency Ranking