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    PROCESS FOR PRODUCING HYDROXYALKYL CELLULOSES
    33.
    发明公开
    PROCESS FOR PRODUCING HYDROXYALKYL CELLULOSES 有权
    用于生产羟

    公开(公告)号：EP2928925A1

    公开(公告)日：2015-10-14

    申请号：EP13786762.8

    申请日：2013-10-17

    申请人： Kao Corporation

    发明人： GOTO, Hideki ,  NAKANISHI, Kohei ,  IMORI, Yoichiro ,  WADA, Tomoya

    IPC分类号： C08B1/00 ,  C08B1/08 ,  C08B11/08

    CPC分类号： C08B11/08 ,  C08B1/00 ,  C08B1/06 ,  C08B1/08 ,  C08B11/145

    摘要： The present invention relates to (1) a process for producing a hydroxyalkyl cellulose having an excellent water-solubility while maintaining a high reaction selectivity by adding a basic compound and an alkyleneoxide to a cellulose to conduct a reaction therebetween in which the basic compound is added in a total amount of from 0.3 to 1.5 mol per 1 mol of an anhydroglucose unit in the cellulose, and the alkyleneoxide is added in a total amount of from 1.0 to 3.0 mol per 1 mol of an anhydroglucose unit in the cellulose, the process including a step of adding the basic compound in an amount of from 50 to 95% of the total amount of the basic compound to be added during the process, and then adding the alkyleneoxide in an amount of from 30 to 80% of the total amount of the alkyleneoxide to be added during the process to react the compounds with the cellulose, thereby obtaining a reaction mixture; and a step of adding a remaining amount of the basic compound and a remaining amount of the alkyleneoxide to the reaction mixture obtained in the previous step to conduct a reaction therebetween; (2) a hydroxyalkyl cellulose produced by the process; and (3) a process for producing a cationized hydroxyalkyl cellulose using the resulting hydroxyalkyl cellulose.

    PROCESSES AND APPARATUS FOR LIGNIN SEPARATION IN BIOREFINERIES
    35.
    发明公开
    PROCESSES AND APPARATUS FOR LIGNIN SEPARATION IN BIOREFINERIES 审中-公开
    在生物炼制的方法和装置LIGNINABSCHEIDUNG

    公开(公告)号：EP2880173A1

    公开(公告)日：2015-06-10

    申请号：EP13827637.3

    申请日：2013-08-06

    申请人： API Intellectual Property Holdings, LLC.

    发明人： RETSINA, Theodora ,  PYLKKANEN, Vesa ,  NELSON, Kimberly ,  SZCZEPANIK, Mark

    IPC分类号： C12P19/02 ,  C08B1/00 ,  C08H7/00

    CPC分类号： C08B1/00 ,  C08B37/0057 ,  C08H6/00 ,  C08H8/00

    摘要： The present invention generally provides methods of improving lignin separation during lignocellulosic biorefining, comprising the steps of (i) catalyzing fractionation or hydrolysis with an acid to release sugars into an acidified solution containing lignin, (ii) neutralizing the acidified solution with a base to form a salt in a neutralized solution; (iii) in a separation unit, separating the salt and the lignin, each in free or combined form, from the neutralized solution; and then (iv) recycling a portion of the salt and optionally a portion of the lignin to step (i) to combine, physically or chemically, with the lignin, to improve lignin separation in the separation unit. In certain embodiments, the acid is a sulfur-containing acid and the base is lime, forming gypsum which is then recycled, in part, to the hydrolysis reactor.