METHOD FOR REDUCING THE C1-C2-ALDEHYDE CONTENT FORMED FROM COMPOUNDS WITH -CH2-CHR-O- OR -CH2-CH(OH)-GROUPS
    11.
    发明申请
    METHOD FOR REDUCING THE C1-C2-ALDEHYDE CONTENT FORMED FROM COMPOUNDS WITH -CH2-CHR-O- OR -CH2-CH(OH)-GROUPS 审中-公开
    过程,用于降低由-CH 2 CHR-O-或-CH2-CH(OH)基团表示的化合物的C1-C2-醛含量

    公开(公告)号:WO99051647A1

    公开(公告)日:1999-10-14

    申请号:PCT/EP1999/002216

    申请日:1999-03-31

    CPC classification number: C08F6/006 C07B63/04 C07C29/94 C07C31/202 C07C31/18

    Abstract: The invention relates to a method for reducing the content of small quantities of C1-C2-aldehydes formed from organic compounds with -CH2-CHR-O- and/or -CH2-CH(OH)-groups (R=H, C1-C4-alkyl) as a result of radical action, to

    Abstract translation: 从含有-CH 2 -CHR-O-和/或-CH 2(OH)基团的有机化合物(R = H,C1-C4烷基)而造成少量C1-C2-醛与自由基作用,其含量在根据本发明 可以通过添加其与醛基到<1ppm的反应的化合物,可以减少处理。 间与上述分组的物质包括许多在聚合物化学中所使用的乳化剂和保护胶体,如聚乙二醇,聚乙烯醇或长链醇的乙氧基化产物,酚或胺。 该方法是对已在这样的乳化剂或保护胶体的存在下制备了单体的自由基聚合的聚合物分散体的治疗特别重要,并且允许生产无醛的聚合物分散体以及它们用于卫生和卫生制品中使用。

    A METHOD FOR THE PREPARATION OF 1,2-PROPANEDIOL

    公开(公告)号:WO2022084050A1

    公开(公告)日:2022-04-28

    申请号:PCT/EP2021/077669

    申请日:2021-10-07

    Abstract: A method for preparing 1,2-propanediol by the steps of (a) continuously reacting propene with hydrogen peroxide in the presence of a catalyst mixture comprising a quaternary ammonium salt and a polytungstophosphate in a liquid reaction mixture comprising an aqueous phase with a maximum apparent pH of 6 and an organic phase comprising an alkylaromatic hydrocarbon solvent, (b) withdrawing liquid reaction mixture from step a) and adding a water-soluble sulfate salt or sulfuric acid to provide a mixture comprising from 500 to 10,000 mg/kg of sulfate ions in the aqueous phase, (c) separating the mixture obtained in step b) into an aqueous phase (Pa) comprising 1,2-propanediol and an organic phase (Po), (d) recycling at least a part of the organic phase (Po) to the reaction step a) and (e) recovering 1,2-propanediol from the aqueous phase (Pa) allows extended operation of the reaction with little loss of tungsten and phase transfer catalyst.

    할로겐이 치환된 벤질 알코올의 제조방법
    13.
    发明申请
    할로겐이 치환된 벤질 알코올의 제조방법 审中-公开
    生产卤素取代苯甲醇的方法

    公开(公告)号:WO2018070851A1

    公开(公告)日:2018-04-19

    申请号:PCT/KR2017/011395

    申请日:2017-10-16

    Inventor: 문경운

    CPC classification number: C07C29/147 C07C29/94 C07C33/46 C07C51/06 C07C63/70

    Abstract: 본 발명은 할로겐이 치환된 벤조산으로부터 할로겐이 치환된 벤질 알코올의 제조방법에 관한 것이다. 본 발명의 방법을 이용하여 할로겐이 치환된 벤질 알코올을 제조하는 경우, 수소화붕소나트륨과 저가의 무기산을 사용하므로, 특수 반응기를 사용하지 않고도 벤질 알코올을 제조하는 것이 가능하여, 제조공정이 편리하고, 산업 폐기물이 감소되며, 고수율 및 고순도의 벤질 알코올을 제조할 수 있어, 제초제 및 간전제 합성의 원료로서 유용한 벤질 알코올의 대량생산에 용이하다.

    Abstract translation: 本发明涉及生产其中卤素被卤素取代的苯甲酸取代的苄醇的方法。 当使用本发明的方法制备卤素取代的苯甲醇时,由于使用硼氢化钠和廉价的无机酸,因此可以在不使用专用反应器的情况下生产苯甲醇, 工业废弃物减少,可以生产高产量和高纯度的苄醇​​,并且容易大量生产可用作除草剂和肝前体合成的原料的苄醇。

    GENERATION OF POLYOLS FROM SACCHARIDE CONTAINING FEEDSTOCK
    18.
    发明申请
    GENERATION OF POLYOLS FROM SACCHARIDE CONTAINING FEEDSTOCK 审中-公开
    来自含有饲料的多糖的产生

    公开(公告)号:WO2013015996A2

    公开(公告)日:2013-01-31

    申请号:PCT/US2012046342

    申请日:2012-07-12

    Abstract: A process for generating at least one polyol from a feedstock comprising saccharide is performed in a continuous or batch manner using a catalyst system. The process involves, contacting hydrogen, water, and a feedstock comprising saccharide, with a catalyst system to generate an effluent stream comprising at least one polyol and recovering the polyol from the effluent stream. The catalyst system comprises at least one metal component with an oxidation state greater than or equal to 2+.

    Abstract translation: 使用催化剂体系以连续或间歇方式进行从包含糖的原料产生至少一种多元醇的方法。 该方法涉及使氢,水和包含糖的原料与催化剂体系接触以产生包含至少一种多元醇的流出物流并从流出物流中回收多元醇。 催化剂体系包含至少一种氧化态大于或等于2+的金属组分。

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