C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/52 (2006.01) C02F 1/66 (2006.01) C02F 11/14 (2006.01) D21H 17/03 (2006.01) D21H 17/65 (2006.01) D21H 17/66 (2006.01) D21H 21/10 (2006.01)
Patent
CA 2743740
The present invention relates to an aqueous composition, which has a pH value of 6.0-9.0 and which contains salts or esters or both of carbonic acid at a concentration, which is at least 0,01% calculated from the total weight of the aqueous composition, and flocculants, coagulants, or microparticles or a mixture thereof as retention agents, as well as to a method for manufacturing said composition and to the use of said composition for manufacturing paper, for separating water from solid material in filtration, for water treatment, for waste water treatment and for waste sludge treatment.
La présente invention porte sur une composition aqueuse, qui a une valeur de pH de 6,0-9,0 et qui contient des sels ou esters ou les deux d'acide carbonique, à une concentration qui est d'au moins 0,01 % calculée à partir du poids total de la composition aqueuse, et des floculants, coagulants ou microparticules ou un mélange de ceux-ci utilisés comme agents de rétention, ainsi que sur un procédé pour la fabrication de ladite composition et sur l'utilisation de ladite composition pour la fabrication de papier, pour la séparation d'eau à partir d'une matière solide en filtration, pour le traitement d'eau, pour le traitement d'eau résiduaire et pour le traitement de boue excédentaire.
Kautar Oy
Norton Rose Or S.e.n.c.r.l.,s.r.l./llp
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