Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
The effect of contact time between cationic polymers and furnish on retention and drainage
YKI – Ytkemiska institutet.
1994 (English)In: Journal of Pulp and Paper Science (JPPS), ISSN 0826-6220, Vol. 20, J71-J76 p.Article in journal (Refereed)
Abstract [en]

The effect of the contact time between cationic polymers (polyacrylamides and cationic starches) and stock on retention and dewatering has been studied using a new type of equipment. Dewatering is carried out under low pressure and the addition of chemicals and other operations are controlled by a microprocessor. The retention often shows a maximum after a polymer contact time of 10-20 s. It is found that long contact times drastically reduce the effect of the added polymer. This is explained as being due to floc rupture, degradation of the polymer and poor reflocculation. The dewatering time is extremely sensitive to the polymer contact time and increases steadily with increasing contact time.

Place, publisher, year, edition, pages
1994. Vol. 20, J71-J76 p.
Keyword [en]
Furnish, retention aids, drainage aids, polyacrylics, acrylamide, time, starch, ctionic compounds
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-26967OAI: oai:DiVA.org:ri-26967DiVA: diva2:1053970
Note
A787Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

Open Access in DiVA

No full text

By organisation
YKI – Ytkemiska institutet
In the same journal
Journal of Pulp and Paper Science (JPPS)
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

Total: 11 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.27.0