D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 17/67 (2006.01)
Patent
CA 2580697
The invention relates to a method for charging a fibre material suspension, which contains cellulose fibres, with calcium carbonate, said method consisting of the following steps: calcium hydroxide in a liquid or dry form or calcium oxide is introduced into the fibre material suspension, carbon dioxide is introduced into the fibre material suspension, calcium carbonate is precipitated from the calcium hydroxide by the carbon dioxide in a pressurised pressure container (2).
Procédé de charge d'une suspension de matière fibreuse sous forme de fibres de cellulose à l'aide de carbonate de calcium, qui consiste à introduire de l'hydroxyde de calcium sous forme liquide ou sèche ou de l'oxyde de calcium dans la suspension de matière fibreuse, à introduire du dioxyde de carbone dans la suspension de matière fibreuse et à faire précipiter du carbonate de calcium, par le dioxyde de carbone, à partir de l'hydroxyde de calcium dans une cuve (2) sous pression.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Voith Patent Gmbh
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