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1. (WO2011011907) PREPARATION METHOD OF D-GLUCOSAMINE HYDROCHLORIDE ORIGINATED FROM PLANT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/011907    International Application No.:    PCT/CN2009/001269
Publication Date: 03.02.2011 International Filing Date: 16.11.2009
IPC:
C07H 5/06 (2006.01), C07H 1/08 (2006.01)
Applicants: YANGZHOU RIXING BIOCHEMICAL PRODUCTS CO., LTD [CN/CN]; N.58 Wu' an Road, Gaoyou Jiangsu, 225601 (CN) (For All Designated States Except US).
ZHANG, Chao [CN/CN]; (CN) (For US Only).
ZHANG, He [CN/CN]; (CN) (For US Only).
QI, Shanlong [CN/CN]; (CN) (For US Only).
SHI, Cunbao [CN/CN]; (CN) (For US Only)
Inventors: ZHANG, Chao; (CN).
ZHANG, He; (CN).
QI, Shanlong; (CN).
SHI, Cunbao; (CN)
Agent: NANJING ZHONGLIAN PATENT AGENCY CO., LTD; Jiangsu Jixie Building No. 49, Zhongshan North Road Nanjing Jiangsu 210008 (CN)
Priority Data:
200910183248.5 30.07.2009 CN
Title (EN) PREPARATION METHOD OF D-GLUCOSAMINE HYDROCHLORIDE ORIGINATED FROM PLANT
(FR) PROCÉDÉ DE PRÉPARATION DE CHLORHYDRATE DE D-GLUCOSAMINE D'ORIGINE VÉGÉTALE
(ZH) 一种植物来源D-氨基葡萄糖盐酸盐的制备方法
Abstract: front page image
(EN)A preparation method of D-glucosamine hydrochloride originated from plant is disclosed, which comprises using waste hypha residue of citric acid as initial raw material, acidolyzing the waste hypha residue with hydrochloric acid, condensing and crystallizing the acidolysis solution to produce crude product of D-glucosamine hydrochloride, decoloring the crude product with active carbon, condensing and crystallizing the decolored solution, centrifugally washing the crystal with organic solvent until it is white, and drying the crystal.
(FR)L'invention porte sur un procédé de préparation de chlorhydrate de D-glucosamine, d'origine végétale, qui comporte l'utilisation de résidu d'acide citrique issu de déchet d'hyphe comme matière première initiale, l'acidolyse du résidu issu de déchet d'hyphe avec de l'acide chlorhydrique, la condensation et la cristallisation de la solution d'acidolyse fin d'obtenir un produit brut de chlorhydrate de D-glucosamine, la décoloration du produit brut par du carbone actif, la condensation et la cristallisation de la solution décolorée, le lavage par centrifugation du cristal avec un solvant organique jusqu'à ce qu'il soit blanc, et le séchage du cristal.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)