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    PROCESS FOR PRODUCING PURE GUARSEED FLOUR
    111.
    发明申请
    PROCESS FOR PRODUCING PURE GUARSEED FLOUR 审中-公开
    用于生产纯瓜尔胶

    公开(公告)号：WO1997011974A1

    公开(公告)日：1997-04-03

    申请号：PCT/CH1996000333

    申请日：1996-09-25

    Applicant: MEYHALL AG ,  WIELINGA, Willem, Cor

    Inventor： MEYHALL AG

    IPC: C08B37/14

    CPC classification number: C08B37/0096 ,  A23L29/238

    Abstract: The object of the present invention is a process for producing pure guarseed flour which produces a transparent and highly viscous solution when dissolved in water. Despite extensive purification, the process provides good yields of pure guarseed flour. The process comprises acid treatment of the initial material, washing the acid-treated split with water and/or neutralisation with an aqueous alkaline solution, treatment with an aqueous alkaline solution, washing with water and dewatering using an aqueous alcohol solution. Transparent, highly viscous solutions of pure guarseed flour obtained by this process are primarily used in the food industry.

    Abstract translation: 本发明是一种生产纯瓜尔胶，其中，当其溶解在水中，以具有高粘度的透明溶液的方法。 方法的收率尽管进行了广泛的清洁，纯净的瓜尔豆饭的良好收益。 该方法包括起始材料的酸处理，水洗和/或中和所述酸处理的分割用含水碱性溶液中，用碱性水溶液处理，用水洗涤并用含水醇溶液脱水。 由纯的瓜尔胶的这种方法生产的透明的，高粘性的溶液主要使用在食品工业中应用。

    MULTI-STEP LOW TEMPERATURE AND LOW PRESSURE PROCESS FOR AGRICULTURAL FEEDSTOCK STOCK PREPARATION WITH HEMICELLULOSE AND LIGNIN RECOVERY
    112.
    发明申请
    MULTI-STEP LOW TEMPERATURE AND LOW PRESSURE PROCESS FOR AGRICULTURAL FEEDSTOCK STOCK PREPARATION WITH HEMICELLULOSE AND LIGNIN RECOVERY 审中-公开

    公开(公告)号：WO2023092027A1

    公开(公告)日：2023-05-25

    申请号：PCT/US2022/080072

    申请日：2022-11-17

    Applicant: KANBOL, INC.

    Inventor： LEACH, Miles ,  MCKENZIE, Michel

    IPC: D21C1/06 ,  D21C3/02 ,  D21C3/26 ,  D21C11/00 ,  D21C3/04 ,  D21C3/22 ,  D21C9/02 ,  C08B37/14 ,  C07G1/00

    Abstract: Methods and systems for preparing agricultural residue or other agricultural feedstock for use as a pulp. The method includes providing non-wood agricultural residue (e.g., corn stover) or other agricultural feedstock that includes agricultural fibers, chemically pulping the agricultural fibers in a preliminary alkaline chemical pulping process at a low consistency and at a low temperature to produce partially pulped agricultural fibers, such step including separating lignin and hemicellulose from the partially pulped agricultural fibers, introducing the partially pulped agricultural fibers into a first reactor, wherein the first reactor operates at a low temperature of less than 100°C (e.g., 65°C), introducing the agricultural fibers from the first reactor into a second reactor, where the second reactor operates at a low temperature, of less than 100°C (e.g., 94-96°C), the second reactor operating at a higher temperature than the first reactor, to produce pulped agricultural fibers.

    A METHOD FOR PREPARING ESTERIFIED CELLULOSE AND/OR HEMICELLULOSE
    113.
    发明申请
    A METHOD FOR PREPARING ESTERIFIED CELLULOSE AND/OR HEMICELLULOSE 审中-公开

    公开(公告)号：WO2022101551A1

    公开(公告)日：2022-05-19

    申请号：PCT/FI2021/050762

    申请日：2021-11-10

    Applicant: UPM-KYMMENE CORPORATION

    Inventor： SAPKOTA, Janak ,  POHJALAINEN, Teemu ,  VIRTANEN, Pasi ,  KOSONEN, Harri ,  MODIG, Sakari ,  RISTOLAINEN, Matti

    IPC: C08B3/16 ,  C08B3/10 ,  C08L5/14 ,  C08B37/14 ,  C08B37/00

    Abstract: A method for preparing esterified cellulose and/or hemicellulose is disclosed. The method may comprise mixing an anhydride mixture and cellulose and/or hemicellulose, thereby obtaining an esterification mixture, such that the anhydride mixture esterifies the cellulose and/or hemicellulose at least partially, thereby forming the esterified cellulose and/or hemicellulose; and wherein the anhydride mixture is obtainable or obtained by reacting a fatty acid with a short-chain acid anhydride in the presence of an acid catalyst, such that an initial anhydride mixture is obtained, wherein the initial anhydride mixture comprises a mixed anhydride having a fatty acyl group and a short-chain acyl group, a portion of the short-chain acid anhydride, and a short-chain acid and optionally a fatty acid anhydride having two fatty acyl groups; and removing the short-chain acid, the short-chain acid anhydride and optionally water and/or impurities present in the initial anhydride mixture at least partially from the initial anhydride mixture, thereby obtaining the anhydride mixture.

    PROCESS FOR CONVERTING LIGNOCELLULOSIC BIOMASS INTO SUGARS, BIOCHEMICALS, BIOFUELS, AND BIOMATERIALS
    114.
    发明申请
    PROCESS FOR CONVERTING LIGNOCELLULOSIC BIOMASS INTO SUGARS, BIOCHEMICALS, BIOFUELS, AND BIOMATERIALS 审中-公开

    公开(公告)号：WO2022082121A2

    公开(公告)日：2022-04-21

    申请号：PCT/US2021/062984

    申请日：2021-12-11

    Applicant: GRANBIO INTELLECTUAL PROPERTY HOLDINGS, LLC

    Inventor： ZEBROSKI, Ryan

    IPC: C08B1/00 ,  C08B37/14 ,  C08H7/00 ,  C08H8/00 ,  D21C3/04 ,  D21C3/20 ,  D21C3/22 ,  D21C3/26 ,  D21C1/00

    Abstract: In some variations, a process for preparing a biomass feedstock for conversion to a sugar, a biofuel, a biochemical, or a biomaterial, comprises: providing a biomass feedstock containing cellulose, hemicellulose, and lignin; optionally, introducing the biomass feedstock and a first vapor stream to a biomass-heating unit, thereby generating a heated biomass stream; introducing the biomass feedstock and a first liquid stream to a liquid-addition unit, thereby generating a wet biomass stream, wherein the first liquid stream contains a pretreatment chemical; introducing the wet biomass stream to a mechanical conveyor operated to physically remove liquid from the wet biomass stream, thereby generating an excess-liquid stream comprising the pretreatment chemical and a solid discharge stream comprising the biomass feedstock and the pretreatment chemical; recycling at least a portion of the excess-liquid stream to the first liquid stream; and recovering or further processing the solid discharge stream. Many variations are disclosed.

    PROCESS FOR BIOMASS TREATMENT
    115.
    发明申请
    PROCESS FOR BIOMASS TREATMENT 审中-公开

    公开(公告)号：WO2020234761A1

    公开(公告)日：2020-11-26

    申请号：PCT/IB2020/054727

    申请日：2020-05-19

    Applicant: POLITECNICO DI MILANO

    Inventor： MELE, Andrea ,  CASTIGLIONE, Franca ,  FERRO, Monica ,  COLOMBO DUGONI, Greta ,  DI PIETRO, Maria Enrica ,  MANNU, Alberto ,  PANZERI, Walter

    IPC: D21C3/20 ,  C08B37/00 ,  C08B37/14 ,  C08H8/00 ,  D21C9/08

    Abstract: Process for the treatment of lignocellulosic biomasses with a process solvent selected from a eutectic solvent consisting of a hydrogen bond acceptor and of a hydrogen bond donor, an ionic liquid and a mixture of said eutectic solvent and said ionic liquid, said process comprising the following steps: A. mixing of the biomass with the process solvent and possibly separation of insoluble cellulose residues and/or inorganic material; B. treatment of the process solvent solution with water and lignin separation; C. separation of the hemicellulose from the mixture of process solvent and possibly water, the step C of hemicellulose separation is carried out by adding an organic solvent soluble in the solvent and in water, thus allowing the precipitation of the hemicellulose and its subsequent separation with conventional techniques from the liquid phase comprising process solvent, organic solvent and possibly water.

    一种甲醇介导的半纤维素碱溶液分离方法以及一种乙醇介导的半纤维素碱溶液分离方法
    117.
    发明申请
    一种甲醇介导的半纤维素碱溶液分离方法以及一种乙醇介导的半纤维素碱溶液分离方法 审中-公开

    公开(公告)号：WO2019119741A1

    公开(公告)日：2019-06-27

    申请号：PCT/CN2018/090851

    申请日：2018-06-12

    Applicant: 南京林业大学

    Inventor： 徐勇 ,  罗京 ,  余世袁

    IPC: C08B37/14

    CPC classification number: C08B37/14

    Abstract: 本发明公开了一种甲醇介导的半纤维素碱溶液分离方法以及乙醇介导的半纤维素碱溶液分离方法，向溶解半纤维素的碱性溶液中加入甲醇/乙醇充分混匀，通过甲醇/乙醇介导的疏水作用破坏半纤维素与碱性溶液间形成的水化层作用，使半纤维素从溶液体系中析出，并经沉降、离心或过滤分离得到半纤维素沉淀物与碱性甲醇/乙醇溶液；利用碱性条件对甲醇/乙醇与水蒸发和气化分离的促进作用，采用减压蒸(精)馏或气化膜分离甲醇/乙醇与碱性溶液，所制得的碱性溶液、甲醇/乙醇再回用于溶解半纤维素及分离。通过本方法的强碱性溶液、甲醇/乙醇的完全回用，实现碱溶解与分离半纤维素的高效、清洁和节约化生产，碱溶解半纤维素的分离与回收效率超过99％。

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