TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
STEEP BLEACHING [1 record]
Record 1 - internal organization data 1998-08-12
Record 1, English
Record 1, Subject field(s)
- Pulp Preparation (papermaking)
Record 1, Main entry term, English
- steep bleaching
1, record 1, English, steep%20bleaching
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Bleaching done usually with peroxides at high density, ambient temperature, low alkalinity and long retention times. 1, record 1, English, - steep%20bleaching
Record number: 1, Textual support number: 1 OBS
The bleach liquor is applied on the surface of a feltless type web machine or mixed according to normal high-density procedures and stored while bleaching takes place over a period of days. Because no neutralization step is required, the alkalinity in the bleach liquor must be carefully controlled so that the final pulp is neutral or slightly acidic when the peroxide has been fully consumed. 1, record 1, English, - steep%20bleaching
Record 1, French
Record 1, Domaine(s)
- Préparation de la pâte à papier
Record 1, Main entry term, French
- blanchiment par macération
1, record 1, French, blanchiment%20par%20mac%C3%A9ration
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Blanchiment généralement effectué avec un peroxyde à haute concentration dans une solution faiblement alcaline et à la température ambiante. 2, record 1, French, - blanchiment%20par%20mac%C3%A9ration
Record number: 1, Textual support number: 1 OBS
Le temps de séjour est très long. La solution de peroxyde est soit pulvérisée sur la surface d'une machine à toile sans feutre, soit mélangée à la pâte à haute concentration, puis entreposée pendant que le traitement se poursuit durant plusieurs jours. Aucune neutralisation n'étant requise, l'alcalinité de la solution de blanchiment doit être soigneusement contrôlée pour que la pâte finale soit neutre ou légèrement acide une fois que le peroxyde est complètement décomposé. 2, record 1, French, - blanchiment%20par%20mac%C3%A9ration
Record 1, Spanish
Record 1, Textual support, Spanish
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