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Machine translation
1. (WO2007087100) MANUFACTURE OF CELLULOSE ESTERS: RECYCLE OF CAUSTIC AND/OR ACID FROM PRE-TREATMENT OF PULP
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/087100    International Application No.:    PCT/US2006/062060
Publication Date: 02.08.2007 International Filing Date: 14.12.2006
Chapter 2 Demand Filed:    12.07.2007    
IPC:
D06M 13/00 (2006.01)
Applicants: CELANESE ACETATE LLC [US/US]; 1601 West LBJ Freeway, Dallas, TX 75234 (US)
Inventors: WANG, Linfu; (US).
STOGNER, Henry, P.; (US).
FALLON, Denis G.; (US).
KIZER, Lawton E.; (US).
TONEY, Charles E.; (US).
BATSON, Billy C.; (US)
Agent: HAMMER, Robert, H., III; Hammer & Hanf, P.C., 3125 Springbank Lane, Suite G, Charlotte, NC 28226 (US)
Priority Data:
11/332,741 13.01.2006 US
Title (EN) MANUFACTURE OF CELLULOSE ESTERS: RECYCLE OF CAUSTIC AND/OR ACID FROM PRE-TREATMENT OF PULP
(FR) FABRICATION D’ESTERS DE CELLULOSE : RECYCLAGE DE BASE CAUSTIQUE ET/OU D’ACIDE PROVENANT DU PRE-TRAITEMENT DE LA PATE
Abstract: front page image
(EN)A process for the manufacture of cellulose esters is described. The process includes the steps of : pre- treating pulp for the removal of impurities with either caustic or acid or both, esterifying the pre- treated pulp, and recycling the caustic or acid or both from the pre-treating step.
(FR)La présente invention concerne un procédé de fabrication d’esters de cellulose. Le procédé comprend les étapes consistant à : prétraiter la pâte de façon à éliminer les impuretés avec une base caustique ou un acide ou les deux, estérifier la pâte prétraitée et recycler la base caustique ou l'acide ou les deux provenant de l'étape de prétraitement.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, 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, LV, LY, MA, MD, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, 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, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)