B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 17/00 (2006.01) B01D 17/04 (2006.01) B01D 21/01 (2006.01) D21C 5/02 (2006.01) D21C 9/08 (2006.01)
Patent
CA 2319431
Methods for controlling wax and other contaminants by improving the dispersion of these materials through the addition of contaminant dispersants to the process of recycling paper and paperboard are disclosed. A preferred contaminant dispersant comprises: a) water, b) a plasticizer; c) an anionic dispersant; d) a surfactant wetting agent; and e) either 1) an acid or lecithin and optionally, a base, or 2) a preneutralized component.
L'invention concerne des procédés de traitement de la cire et d'autres contaminants, mis en oeuvre par une amélioration de la dispersion de ces matières par l'ajout de dispersants de contaminants au cours du processus de recyclage de papier et de carton. Un dispersant de contaminant préféré renferme: a) de l'eau; b) un plastifiant; c) un dispersant anionique; d) un agent mouillant tensioactif; et e) soit 1) un acide ou une lécithine, et éventuellement une base, soit 2) un constituant préneutralisé.
Coffey Martin J.
Severtson Steven J.
Marks & Clerk
Nalco Chemical Company
LandOfFree
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