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Search result: 19 of 129 |
(WO/2007/137127) METHODS FOR CARBONATE PRETREATMENT AND PULPING OF CELLULOSIC MATERIAL
- Biblio. Data
- Description
- Claims
- National Phase
- Notices
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| Latest bibliographic data on file with the International Bureau
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| IPC: | D21C 3/02 (2006.01), D21C 3/22 (2006.01), D21C 3/26 (2006.01) | |||||||||||
| Applicants: | THE RESEARCH FOUNDATION OF STATE UNIVERSITY OF NEW YORK [US/US]; 35 State Street, Albany, NY 12207 (US) (All Except US). FRANCIS, Raymond [US/US]; (US) (US Only). SHIN, Nam Hee [KR/US]; (US) (US Only). | |||||||||||
| Inventors: | FRANCIS, Raymond; (US). SHIN, Nam Hee; (US). | |||||||||||
| Agent: | PIETRANGELO, John; Heslin Rothenberg Farley & Mesiti P.C., 5 Columbia Circle, Albany, NY 12203 (US). | |||||||||||
| Priority Data: |
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| Title: | METHODS FOR CARBONATE PRETREATMENT AND PULPING OF CELLULOSIC MATERIAL | |||||||||||
| Abstract: | A method of pretreating comminuted fibrous material with sodium carbonate and then cooking the pretreated material in the presence of anthraquinone (AQ) is provided. The resulting pulp produced has a higher yield, enhanced strength, and better bleachability compared to pulp produced by prior art methods. AQ may also be introduced to the carbonate pretreatment stage. The method may further include an acid pretreatment providing further enhanced properties to the pulp produced. | |||||||||||
| Designated States: |
AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BH, 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, LY, MA, MD, ME, 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, US, UZ, VC, VN, ZA, ZM, ZW. African Regional Intellectual Property Org. (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW) Eurasian Patent Organization (EAPO) (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM) European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, PL, PT, RO, SE, SI, SK, TR) African Intellectual Property Organization (OAPI) (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG). | |||||||||||
| Publication Language: | English (EN) |
| Filing Language: | English (EN) |
