Continuous process of oxidative cleavage of vegetable oils

    公开(公告)号:US10150725B2

    公开(公告)日:2018-12-11

    申请号:US15697515

    申请日:2017-09-07

    Abstract: A continuous process for the oxidative cleavage of vegetable oils containing triglycerides of unsaturated carboxylic acids, to obtain saturated carboxylic acids, comprising feeding to a first continuous reactor a vegetable oil, an oxidizing compound and catalyst capable of catalyzing the oxidation reaction of the olefinic double bond to obtain an intermediate compound containing vicinal diols: feeding to a second continuous reactor said intermediate compound, a compound containing oxygen and a catalyst capable of catalyzing the oxidation reaction of the vicinal diols to carboxylic groups, to obtain saturated monocarboxylic acids (i) and triglycerides containing saturated carboxylic acids with more than one acid function (ii); separating the saturated monocarboxylic acids (i) from the triglycerides (ii); hydrolyzing in a third reactor the triglycerides (ii) to obtain glycerol and saturated carboxylic acids with more than one acid function; and purifying said saturated carboxylic acids by fractioned crystallization by means of wash column (melt crystallization).

    Process for the synthesis of 5-hydroxymethylfurfural from saccharides
    5.
    发明授权
    Process for the synthesis of 5-hydroxymethylfurfural from saccharides 有权
    从糖类合成5-羟甲基糠醛的方法

    公开(公告)号:US09409877B2

    公开(公告)日:2016-08-09

    申请号:US14889526

    申请日:2014-05-09

    CPC classification number: C07D307/46 B01J27/188 B01J35/1019 C07D307/50

    Abstract: This invention relates to a process for the synthesis of 5-hydroxymethylfurfural (HMF) from saccharides. In particular this invention relates to a process for the dehydration of monosaccharides having 6 carbon atoms (hexoses), disaccharides, oligosaccharides, and polysaccharides to yield highly pure 5-hydroxymethylfurfural (HMF) in high yield.

    Abstract translation: 本发明涉及从糖类合成5-羟甲基糠醛(HMF)的方法。 特别是本发明涉及一种使6个碳原子(己糖),二糖,低聚糖和多糖脱水的方法,以高产率得到高纯度的5-羟甲基糠醛(HMF)。

    Process for the oxidative cleavage of vicinal diols

    公开(公告)号:US10421925B2

    公开(公告)日:2019-09-24

    申请号:US16306122

    申请日:2017-06-05

    Abstract: This invention relates to a process for obtaining monocarboxylic and dicarboxylic acids from unsaturated carboxylic acids and/or their derivatives. The said process comprises an oxidative cleavage reaction of vicinal diols into which are fed at least some of the aqueous phase separated out at the end of the reaction itself and at least one base so that the pH of the aqueous solution at the start of the oxidative cleavage reaction is between 4 and 7.

    CONTINUOUS PROCESS OF OXIDATIVE CLEAVAGE OF VEGETABLE OILS

    公开(公告)号:US20160244394A1

    公开(公告)日:2016-08-25

    申请号:US15143838

    申请日:2016-05-02

    Abstract: A continuous process for the oxidative cleavage of vegetable oils containing triglycerides of unsaturated carboxylic acids, to obtain saturated carboxylic acids, comprising feeding to a first continuous reactor a vegetable oil, an oxidizing compound and catalyst capable of catalyzing the oxidation reaction of the olefinic double bond to obtain an intermediate compound containing vicinal diols: feeding to a second continuous reactor said intermediate compound, a compound containing oxygen and a catalyst capable of catalyzing the oxidation reaction of the vicinal diols to carboxylic groups, to obtain saturated monocarboxylic acids (i) and triglycerides containing saturated carboxylic acids with more than one acid function (ii); separating the saturated monocarboxylic acids (i) from the triglycerides (ii); hydrolyzing in a third reactor the triglycerides (ii) to obtain glycerol and saturated carboxylic acids with more than one acid function; and purifying said saturated carboxylic acids by fractioned crystallization by means of wash column (melt crystallization).

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