BR9917254A - Processes for the clarification of tailings water, for the removal of water in tailings water, and for improving the water retention and drainage of the pulp and paper production process - Google Patents
Processes for the clarification of tailings water, for the removal of water in tailings water, and for improving the water retention and drainage of the pulp and paper production processInfo
- Publication number
- BR9917254A BR9917254A BR9917254-2A BR9917254A BR9917254A BR 9917254 A BR9917254 A BR 9917254A BR 9917254 A BR9917254 A BR 9917254A BR 9917254 A BR9917254 A BR 9917254A
- Authority
- BR
- Brazil
- Prior art keywords
- water
- waste
- drainage
- tailings
- paper
- Prior art date
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
"PROCESSOS PARA A CLARIFICAçãO DE áGUA DE REJEITO, PARA A REMOçãO DE áGUA EM áGUA DE REJEITO, E PARA MELHORAR A RETENçãO E A DRENAGEM DE áGUA DO PROCESSO EM PRODUçãO DE POLPA E DE PAPEL". A invenção é um processo para clarificação, remoção de água ou para melhorar a retenção e a drenagem de água de rejeito industrial ou de aplicação de aprestos de papel com uma quantidade eficaz de pelo menos uma dispersão de um floculante catiónico de polímero solúvel em água em que o melhoramento compreende a adição do dito polímero que tem uma concetração de pelo menos vinte e cinco por cento à dita água de rejeito ou de aprestos de papel. O rejeito industrial é de preferência água de rejeitos de processamento de alimentos, água de rejeitos oleosos água de rejeitos de fábrica de papel e água de rejeitos contaminados por componentes inorgânicos. O apresto de papel pode ser uma suspensão aquosa celulósica."PROCESSES FOR THE CLARIFICATION OF REJECTED WATER, FOR THE REMOVAL OF WATER IN REJECTED WATER, AND TO IMPROVE THE WATER RETENTION AND DRAINAGE OF THE PROCESS IN PULP AND PAPER PRODUCTION". The invention is a process for clarifying, removing water or for improving the retention and drainage of industrial waste water or applying paper coatings with an effective amount of at least one dispersion of a water-soluble polymer cationic flocculant in that the improvement comprises the addition of said polymer which has a concentration of at least twenty-five percent to said waste water or paper wastes. Industrial waste is preferably water from food processing waste, water from oily waste water from paper mill waste and water from waste contaminated by inorganic components. Paper primer can be an aqueous cellulosic suspension.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9917254-2A BR9917254A (en) | 1999-04-09 | 1999-04-09 | Processes for the clarification of tailings water, for the removal of water in tailings water, and for improving the water retention and drainage of the pulp and paper production process |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9917254-2A BR9917254A (en) | 1999-04-09 | 1999-04-09 | Processes for the clarification of tailings water, for the removal of water in tailings water, and for improving the water retention and drainage of the pulp and paper production process |
PCT/US1999/007916 WO2000061501A1 (en) | 1999-04-09 | 1999-04-09 | Higher actives dispersion polymer to aid clarification, dewatering, and retention and drainage |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9917254A true BR9917254A (en) | 2002-06-04 |
Family
ID=25665492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9917254-2A BR9917254A (en) | 1999-04-09 | 1999-04-09 | Processes for the clarification of tailings water, for the removal of water in tailings water, and for improving the water retention and drainage of the pulp and paper production process |
Country Status (1)
Country | Link |
---|---|
BR (1) | BR9917254A (en) |
-
1999
- 1999-04-09 BR BR9917254-2A patent/BR9917254A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA10 | Dismissal: dismissal - article 33 of industrial property law | ||
B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |