NO924903L - Fremgangsmaate ved massealkalitilsetning for hoeykonsistensoksygendelignifisering - Google Patents
Fremgangsmaate ved massealkalitilsetning for hoeykonsistensoksygendelignifiseringInfo
- Publication number
- NO924903L NO924903L NO92924903A NO924903A NO924903L NO 924903 L NO924903 L NO 924903L NO 92924903 A NO92924903 A NO 92924903A NO 924903 A NO924903 A NO 924903A NO 924903 L NO924903 L NO 924903L
- Authority
- NO
- Norway
- Prior art keywords
- pulp
- eligibility
- procedures
- high consistency
- alcohol addition
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
Ubleket masse (8) blandes med en vanndlg alkalisk løsning (10, 14A) mens den har lav konsistens for å fordele en første mengde av alkalisk materiale, hovedsaklig jevnt i massen. Konsistensen til massen blir deretter økt til mer enn ca. 18% (12) og den høykonsistente alkaliholdige massen blir deretter behandlet med oksygen (21) for å frembringe delignlfi- i sering (20). Den totale mengden av alkalisk materiale i som tilsettes massen er mellom 0.8 og 7 masse-56 av den i ovnstørkede massen. Det dannes deretter massen med høy styrke og lavt llgnininnhold som ytterligere kan blekes til høy lyshet med reduserte mengder kjemikalier.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1991/002673 WO1992018689A1 (en) | 1991-04-18 | 1991-04-18 | Pulp alkali addition process for high consistency oxygen delignification |
Publications (2)
Publication Number | Publication Date |
---|---|
NO924903L true NO924903L (no) | 1992-12-17 |
NO924903D0 NO924903D0 (no) | 1992-12-17 |
Family
ID=22225462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO1992924903A NO924903D0 (no) | 1991-04-18 | 1992-12-17 | Fremgangsmaate ved massealkalitilsetning for hoeykonsistensoksygendelignifisering |
Country Status (5)
Country | Link |
---|---|
KR (1) | KR930701654A (no) |
BR (1) | BR9106680A (no) |
FI (1) | FI922323A (no) |
NO (1) | NO924903D0 (no) |
RU (1) | RU2071518C1 (no) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL3613860T3 (pl) | 2012-11-09 | 2024-04-08 | Versalis S.P.A. | Sposób enzymatycznej hydrolizy materiału lignocelulozowego i fermentacji cukrów |
CA2888332C (en) | 2012-11-09 | 2021-01-19 | Dsm Ip Assets B.V. | Process for enzymatic hydrolysis of lignocellulosic material and fermentation of sugars |
CN112553266B (zh) | 2014-04-30 | 2024-05-17 | 维尔萨利斯股份公司 | 酶促水解木质纤维素材料和发酵糖的方法 |
-
1991
- 1991-04-18 KR KR1019920703263A patent/KR930701654A/ko not_active Application Discontinuation
- 1991-04-18 BR BR919106680A patent/BR9106680A/pt not_active Application Discontinuation
- 1991-04-18 RU RU9192016575A patent/RU2071518C1/ru active
-
1992
- 1992-05-21 FI FI922323A patent/FI922323A/fi not_active Application Discontinuation
- 1992-12-17 NO NO1992924903A patent/NO924903D0/no unknown
Also Published As
Publication number | Publication date |
---|---|
FI922323A0 (fi) | 1992-05-21 |
RU2071518C1 (ru) | 1997-01-10 |
BR9106680A (pt) | 1993-06-22 |
KR930701654A (ko) | 1993-06-12 |
NO924903D0 (no) | 1992-12-17 |
FI922323A (fi) | 1992-10-19 |
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