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1. (WO2019026825) METHOD FOR PRODUCING LIGNIN
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/026825 International Application No.: PCT/JP2018/028406
Publication Date: 07.02.2019 International Filing Date: 30.07.2018
IPC:
C08H 7/00 (2011.01) ,C08L 97/00 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
H
DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
7
Lignin; Modified lignin; High-molecular-weight products derived therefrom
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
97
Compositions of lignin-containing materials
Applicants:
東レ株式会社 TORAY INDUSTRIES, INC. [JP/JP]; 東京都中央区日本橋室町2丁目1番1号 1-1, Nihonbashi-Muromachi 2-chome, Chuo-ku, Tokyo 1038666, JP
Inventors:
荒井 喬広 ARAI, Takahiro; JP
栗原 宏征 KURIHARA, Hiroyuki; JP
舩田 茂行 FUNADA, Shigeyuki; JP
山田 勝成 YAMADA, Katsushige; JP
Priority Data:
2017-14769731.07.2017JP
Title (EN) METHOD FOR PRODUCING LIGNIN
(FR) PROCÉDÉ DE PRODUCTION DE LIGNINE
(JA) リグニンの製造方法
Abstract:
(EN) Lignin having a low softening point can be produced by bringing a lignin-containing biomass into contact with an alkaline aqueous solution to subject the biomass to alkali treatment, and adjusting the resulting alkali treatment product to 35°C or higher and pH 7 or lower to precipitate the lignin.
(FR) Selon l'invention, une lignine présentant un point de ramollissement bas peut être produite par mise en contact d'une biomasse contenant de la lignine avec une solution aqueuse alcaline pour soumettre la biomasse à un traitement alcalin et par ajustement du produit de traitement alcalin résultant à 35°C ou plus et à un pH de 7 ou moins pour précipiter la lignine.
(JA) リグニン含有バイオマスをアルカリ性水溶液に接触させてアルカリ処理し、得られたアルカリ処理物を35℃以上かつpH7以下に調整してリグニンを析出させることによって、軟化点の低いリグニンを製造することが可能となる。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)