C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 28/10 (2006.01) B01F 17/52 (2006.01) C04B 24/18 (2006.01) D21C 3/06 (2006.01) D21C 11/02 (2006.01) C07G 1/00 (2006.01)
Patent
CA 2579990
The present invention relates to a composition comprising water, more than 30 % w/w of calcium hydroxide, and >= 0.2 % w/w dispersant. A process for preparing such a composition is also disclosed. The composition which can be in the form of a 45-55% concentration lime slurry is particularly useful for converting concentrated ammonium lignosulfonate into calcium lignosulfonate, for converting ammonium lignosulfonate into low sulfate calcium, potassium, sodium, or magnesium lignosulfonate and mixtures thereof, for removing soluble sulfate from concentrated sodium, potassium, ammonium or magnesium lignosulfonate or for treating a weak liquor obtained from the pulp and paper industry.
Benson Robert
Kutney Gerry
Moreau Marc
Strmen Juraj
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Tembec
Tembec Industries Inc.
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