BR9102464A - Aperfeicoamento em processo de deslignificacao com oxigenio de polpa lignocelulosica - Google Patents
Aperfeicoamento em processo de deslignificacao com oxigenio de polpa lignocelulosicaInfo
- Publication number
- BR9102464A BR9102464A BR9102464A BR9102464A BR9102464A BR 9102464 A BR9102464 A BR 9102464A BR 9102464 A BR9102464 A BR 9102464A BR 9102464 A BR9102464 A BR 9102464A BR 9102464 A BR9102464 A BR 9102464A
- Authority
- BR
- Brazil
- Prior art keywords
- designification
- improvement
- lignocellulosic pulp
- pulp oxygen
- oxygen
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9102464A BR9102464A (pt) | 1991-06-14 | 1991-06-14 | Aperfeicoamento em processo de deslignificacao com oxigenio de polpa lignocelulosica |
EP19920500075 EP0524127B1 (en) | 1991-06-14 | 1992-06-12 | Improvements in a process for delignifying lignocellulosic pulp by means of oxygen |
MX9202832A MX9202832A (es) | 1991-06-14 | 1992-06-12 | Mejoria de un proceso para deslignificar pulpa lignocelulosica por medio de oxigeno. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9102464A BR9102464A (pt) | 1991-06-14 | 1991-06-14 | Aperfeicoamento em processo de deslignificacao com oxigenio de polpa lignocelulosica |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9102464A true BR9102464A (pt) | 1993-01-12 |
Family
ID=4052110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9102464A BR9102464A (pt) | 1991-06-14 | 1991-06-14 | Aperfeicoamento em processo de deslignificacao com oxigenio de polpa lignocelulosica |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0524127B1 (pt) |
BR (1) | BR9102464A (pt) |
MX (1) | MX9202832A (pt) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR9507520A (pt) * | 1994-04-28 | 1997-09-16 | Mac Millan Bloedel Ltd | Processo de alvejamento de polpas celulósicas com oxigênio |
AR091998A1 (es) | 2012-05-03 | 2015-03-18 | Annikki Gmbh | Procedimiento de preparacion de celulosa con baja concentracion de lignina |
CN114908598B (zh) * | 2022-02-26 | 2022-12-09 | 北京林业大学 | 一种纸浆氧漂方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE364323C (sv) * | 1972-06-22 | 1976-04-12 | Billeruds Ab | Sett att behandla cellulosamassa i alkalisk miljo |
SU1440995A1 (ru) * | 1987-01-04 | 1988-11-30 | Ленинградская лесотехническая академия им.С.М.Кирова | Способ получени целлюлозного полуфабриката |
-
1991
- 1991-06-14 BR BR9102464A patent/BR9102464A/pt not_active IP Right Cessation
-
1992
- 1992-06-12 MX MX9202832A patent/MX9202832A/es unknown
- 1992-06-12 EP EP19920500075 patent/EP0524127B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0524127A2 (en) | 1993-01-20 |
MX9202832A (es) | 1993-02-01 |
EP0524127B1 (en) | 1996-08-14 |
EP0524127A3 (en) | 1993-02-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI955655A (fi) | Kehruuliuoksen pitoisuuden valvonta tuotevalmistuksessa | |
DE59405557D1 (de) | Wanderdeckelkarde | |
PT92695A (pt) | Processo de branqueamento com peroxido de hidrogenio | |
FI891765A0 (fi) | Varastostabiloitu pesuaine, jonka valkaisuominaisuuksia on tehostettu | |
FI943719A (fi) | Puumassan sekoituslaitteen sisältävä happidelignifikaatiomenetelmä | |
BR9102464A (pt) | Aperfeicoamento em processo de deslignificacao com oxigenio de polpa lignocelulosica | |
EP0418201A3 (en) | Bleaching wood pulp with enzymes | |
GB9005807D0 (en) | Improvements in or relating to calender arrangements | |
BR9104450A (pt) | Aperfeicoamento em processo de deslignificacao com oxigenio | |
BR8702517A (pt) | Processo de tecelagem com contas de madeira | |
DE9312638U1 (de) | Wanderdeckelkarde | |
BR9003954A (pt) | Processo de pre-branqueamento ou deslignificacao com oxigenio de polpa kraft | |
EP0413556A3 (en) | Organising text strings | |
BR7102865U (pt) | Aperfeicoamento em processo de impressao | |
BR7102213U (pt) | Aperfeicoamento em processo de aquecimento | |
BR9100210A (pt) | Aperfeicoamento em processo de fermentacao alcoolica semicontinua,e respectivo equipamento | |
BR7100266U (pt) | Aperfeicoamento em processo de pavimentacao | |
BR8702740A (pt) | Processo de costura direta de solado em gaspea e solado usado no mesmo | |
BR6902543U (pt) | Disposicao introduzida em prancheta | |
BR6901445U (pt) | Disposicao introduzida em caixilho | |
BR7201496U (pt) | Disposicao introduzida em caixa com tormada | |
BR8405673A (pt) | Aperfeicoamento em processo de fermentacao alcoolica | |
BR8706443A (pt) | Aperfeicoamento em processo fermentativo | |
KR950008960U (ko) | 다림질판부착 세탁기 | |
BR6802652U (pt) | Disposicoes construtivas introduzidas em tabua de passar roupa |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FB36 | Technical and formal requirements: requirement - article 36 of industrial property law | ||
FF | Decision: granting | ||
FG9A | Patent or certificate of addition granted | ||
B21A | Expiry acc. art. 78, item i of ipl- expiry of the term of protection |
Free format text: PATENTE EXTINTA EM 14/06/2011 |