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    PROCESS FOR THE PRODUCTION OF 5-HYDROXYMETHYLFURFURAL IN THE PRESENCE OF ORGANIC CATALYSTS FROM THE THIOUREA FAMILY
    23.
    发明申请
    PROCESS FOR THE PRODUCTION OF 5-HYDROXYMETHYLFURFURAL IN THE PRESENCE OF ORGANIC CATALYSTS FROM THE THIOUREA FAMILY 审中-公开

    公开(公告)号：US20180370937A1

    公开(公告)日：2018-12-27

    申请号：US15747343

    申请日：2016-07-19

    申请人： IFP Energies nouvelles

    发明人： Myriam SOULEYMANOU ,  Damien DELCROIX

    IPC分类号： C07D307/50 ,  B01J31/02

    摘要： A process for the transformation of a feed of at least one sugar into 5-hydroxymethylfurfural, contacting the feed with one or more organic catalysts in the presence of at least one solvent, said solvent being water or an organic solvent, alone or as a mixture, at a temperature in the range 30° C. to 200° C., and at a pressure in the range 0.1 MPa to 10 MPa, in which said organic catalysts are selected from compounds from the thiourea family with general formula R1NH—C(═S)—NHR2, in which the groups R1 and R2 are aromatic groups optionally having a heteroatom, linear or branched alkyl groups, which may or may not be cyclic, and alkyl groups with at least one heteroatom, which may be linear or branched, which may or may not be cyclic, said groups R1 and R2 possibly being substituted or unsubstituted and which may be identical or different.

    Method for manufacturing lignin degradation product
    24.
    发明授权
    Method for manufacturing lignin degradation product 有权

    公开(公告)号：US10155853B2

    公开(公告)日：2018-12-18

    申请号：US15484010

    申请日：2017-04-10

    申请人： Idemitsu Kosan Co., Ltd. ,  National University Corporation Hokkaido University

    发明人： Satoshi Kajitani ,  Naonori Ryumon ,  Yoshihito Koyama ,  Takao Masuda ,  Teruoki Tago

    IPC分类号： C07G1/00 ,  C08H7/00 ,  C07D307/46 ,  C07D307/50 ,  C08H8/00 ,  B09B3/00

    摘要： Provided is a method for producing a lignin degradation product that includes (1) a degradation step of degrading a raw material containing a plant biomass, in a mixed solvent of water and an aliphatic alcohol having from 4 to 10 carbon atoms, which separates into two phases at 0° C. or higher and 50° C. or lower, under the following conditions, and (2) after the degradation step, a liquid-liquid separation step of separating the lignin degradation product-containing organic phase from the solvent that has separated at the temperature for two-phase separation. The method produces a lignin degradation product at a high yield from lignin or a material containing lignin. Condition A: The concentration of the raw material to be in the mixed solvent is 1% by mass or more and 20% by mass or less. Condition B: The reaction temperature is 100° C. or higher and 350° C. or lower. Condition C: The reaction time is 0.1 hours or more and 10 hours or less.

    Method for synthesis of an output including diesters of 5-methyl-2-furoic acid
    26.
    发明授权
    Method for synthesis of an output including diesters of 5-methyl-2-furoic acid 有权

    公开(公告)号：US09783517B2

    公开(公告)日：2017-10-10

    申请号：US14661139

    申请日：2015-03-18

    申请人： Aviad Cahana ,  Tim Martin

    发明人： Aviad Cahana ,  Tim Martin

    IPC分类号： C07D307/68 ,  C07D307/48 ,  C07D307/50

    CPC分类号： C07D307/68 ,  C07D307/48 ,  C07D307/50

    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).

    PROCESS FOR PREPARING FURFURAL FROM BIOMASS
    28.
    发明申请
    PROCESS FOR PREPARING FURFURAL FROM BIOMASS 审中-公开

    公开(公告)号：US20170240518A1

    公开(公告)日：2017-08-24

    申请号：US15502845

    申请日：2015-08-13

    申请人： SHELL OIL COMPANY

    发明人： Juben Nemchand CHHEDA ,  Jean Paul Andre Marie Joseph Ghislain LANGE ,  Paul Richard WEIDER ,  Robert Lawrence BLACKBOURN

    IPC分类号： C07D307/50 ,  C13K1/02 ,  C13K13/00

    CPC分类号： C07D307/50 ,  C13K1/02 ,  C13K13/002

    摘要： Furfural is produced from biomass material containing pentosan, in high yields, in a production process comprising treating the biomass with a solution containing at least one α-hydroxysulfonic acid thereby hydrolyzing the biomass to produce a product stream containing at least one C5-carbohydrate compound in monomeric and/or oligomeric form, and dehydrating the C5-carbohydrate compound in the presence of an acid, in a biphasic reaction medium comprising an aqueous phase and a water-immiscible organic phase, at a temperature in the range of from about 100° C. to about 250° C. to produce a dehydration product stream containing furfural. An aqueous stream is separated from the dehydration product that can be optionally recycled to the hydrolysis step.