BR0201258A - Process of pulp bleaching in acid medium - Google Patents
Process of pulp bleaching in acid mediumInfo
- Publication number
- BR0201258A BR0201258A BR0201258A BR0201258A BR0201258A BR 0201258 A BR0201258 A BR 0201258A BR 0201258 A BR0201258 A BR 0201258A BR 0201258 A BR0201258 A BR 0201258A BR 0201258 A BR0201258 A BR 0201258A
- Authority
- BR
- Brazil
- Prior art keywords
- acid medium
- pulp bleaching
- pulp
- stage
- ahot
- Prior art date
Links
Landscapes
- Paper (AREA)
Abstract
"PROCESSO DE BRANQUEAMENTO DE POLPA DE CELULOSE EM MEIO áCIDO". Caracterizado pelo fato de utilizar uma seq³ência Ahot tD(Zn)D onde: Ahot é o estágio ácido a quente, D é o estágio de dioxidação da polpa e (Zn) é o estágio de ozonólise seguida de neutralização da polpa sem lavagem entre os referidos estágios, todos os estágios com pH entre 2,0 e 7,0."CELLULOSE PULP WHITE PURPOSE PROCESS". Characterized by the use of a sequence Ahot tD (Zn) D where: Ahot is the hot acid stage, D is the pulp oxidation stage and (Zn) is the ozonolysis stage followed by non-washing pulp neutralization among the above. stages, all stages with pH between 2.0 and 7.0.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0201258A BR0201258A (en) | 2002-04-09 | 2002-04-09 | Process of pulp bleaching in acid medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR0201258A BR0201258A (en) | 2002-04-09 | 2002-04-09 | Process of pulp bleaching in acid medium |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0201258A true BR0201258A (en) | 2004-02-03 |
Family
ID=31192874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0201258A BR0201258A (en) | 2002-04-09 | 2002-04-09 | Process of pulp bleaching in acid medium |
Country Status (1)
Country | Link |
---|---|
BR (1) | BR0201258A (en) |
-
2002
- 2002-04-09 BR BR0201258A patent/BR0201258A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
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B06F | Technical and formal requirements: requirement - article 34 of industrial property law |
Free format text: E EM CONSONANCIA COM A RESOLUCAO NO 34 DO CGEN. |
|
B07A | Technical examination (opinion): publication of technical examination (opinion) | ||
B09B | Decision: refusal | ||
B09B | Decision: refusal |
Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL. |