Procedure for adding a filler into a pulp based on cellulose fibres

Petri Silenius; Markku Leskelä; Johan Gullichsen; Esa Halinen

Procedure for adding a filler into a pulp based on cellulose fibres

Petri Silenius (Inventor), Markku Leskelä (Inventor), Johan Gullichsen (Inventor), Esa Halinen (Inventor)

Not published at Aalto University

Research output: Patent

Abstract

The invention relates to a procedure for adding a filler into a pulp based on cellulose fibres, in which the pulp is fluidized and the filler is added into it. Preferably the pulp is stirred in the fluidized state while the filler is being added. The pulp is preferably at a medium consistency when the filler is being added. Preferably the filler added into the pulp is calcium hydroxide and the calcium carbonate is precipitated with carbon dioxide.

Original language	English
Patent number	EP0791685
IPC	D21H 17/ 70 A N
Priority date	20/02/1996
Publication status	Published - 27 Aug 1997
MoE publication type	H1 Granted patent

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title = "Procedure for adding a filler into a pulp based on cellulose fibres",

abstract = "The invention relates to a procedure for adding a filler into a pulp based on cellulose fibres, in which the pulp is fluidized and the filler is added into it. Preferably the pulp is stirred in the fluidized state while the filler is being added. The pulp is preferably at a medium consistency when the filler is being added. Preferably the filler added into the pulp is calcium hydroxide and the calcium carbonate is precipitated with carbon dioxide.",

author = "Petri Silenius and Markku Leskel{\"a} and Johan Gullichsen and Esa Halinen",

year = "1997",

month = aug,

day = "27",

language = "English",

type = "Patent",

note = "EP0791685; D21H 17/ 70 A N",

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T1 - Procedure for adding a filler into a pulp based on cellulose fibres

AU - Silenius, Petri

AU - Leskelä, Markku

AU - Gullichsen, Johan

AU - Halinen, Esa

PY - 1997/8/27

Y1 - 1997/8/27

N2 - The invention relates to a procedure for adding a filler into a pulp based on cellulose fibres, in which the pulp is fluidized and the filler is added into it. Preferably the pulp is stirred in the fluidized state while the filler is being added. The pulp is preferably at a medium consistency when the filler is being added. Preferably the filler added into the pulp is calcium hydroxide and the calcium carbonate is precipitated with carbon dioxide.

AB - The invention relates to a procedure for adding a filler into a pulp based on cellulose fibres, in which the pulp is fluidized and the filler is added into it. Preferably the pulp is stirred in the fluidized state while the filler is being added. The pulp is preferably at a medium consistency when the filler is being added. Preferably the filler added into the pulp is calcium hydroxide and the calcium carbonate is precipitated with carbon dioxide.

M3 - Patent

M1 - EP0791685

ER -