Method for synthesis of an output including diesters of 5-methyl-2-furoic acid

    公开(公告)号:US09783517B2

    公开(公告)日:2017-10-10

    申请号:US14661139

    申请日:2015-03-18

    摘要: The present invention describes methods and apparatuses for the synthesis of 5-(chloromethyl)-2-furaldehyde (CMF) from saccharides in pure or crude form, the method comprising: (a) continuously contacting saccharides in pure or crude form, hydrochloric acid, and an organic solvent, by way of a continuous, biphasic-flow reactor assembly at a temperature from about 60 degrees C. to about 200 degrees C. and pressures from about 1 atmosphere to about 20 atmospheres, such that CMF is produced; (b) separating 5-(chloromethyl)-2-furaldehyde by liquid/liquid and solid/liquid phase separation; (c) producing at least five kilograms per day with at least 50% yield. Embodiments of the present invention can produce CMF in a continuous fashion, with high yield and without degradation of CMF to such side products as 5-(hydroxymethyl)furfural (HMF), 2-(2-hydroxyacetyl)furan (HAF) and levulinic acid (LA).

    Method for producing 2-furaldehyde
    9.
    发明授权
    Method for producing 2-furaldehyde 有权
    2-糠醛生产方法

    公开(公告)号:US09403787B2

    公开(公告)日:2016-08-02

    申请号:US13953191

    申请日:2013-07-29

    IPC分类号: C07D307/50

    摘要: An object of the present invention is to provide a method for suppressing the corrosion of a reactor and reducing waste in the production of 2-furaldehyde from a sugar raw material containing a hexose as a constituent component, and another object of the invention is to provide an industrially advantageous method for producing 2-furaldehyde, which suppresses a decrease in the activity of a catalyst in a case of using an acid catalyst and provides a higher yield. The present invention relates to a method for producing 2-furaldehyde comprising heating a sugar raw material containing a hexose as a constituent component in an aprotic polar solvent in the presence of a solid acid catalyst.

    摘要翻译: 本发明的目的是提供一种抑制反应器腐蚀的方法,并减少从含有己糖作为构成成分的糖原料生产2-糠醛的废物,本发明的另一个目的是提供 这是用于生产2-糠醛的工业上有利的方法,其抑制了在使用酸催化剂的情况下催化剂的活性降低并提供更高的收率。 本发明涉及一种生产2-糠醛的方法,包括在固体酸催化剂存在下,将含有己糖作为组成成分的糖原料加热到非质子极性溶剂中。