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1. WO2012072874 - A METHOD AND A SYSTEM FOR PRODUCING NANOCELLULOSE, AND NANOCELLULOSE

Publication Number WO/2012/072874
Publication Date 07.06.2012
International Application No. PCT/FI2011/051042
International Filing Date 25.11.2011
IPC
D21H 11/16 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
11Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
16modified by a particular after-treatment
D21H 11/08 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
11Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
08Mechanical or thermomechanical pulp
D21D 1/20 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
1Methods of beating or refining; Beaters of the Hollander type
20Methods of refining
D21B 1/04 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
BFIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
1Fibrous raw materials or their mechanical treatment
04by dividing raw materials into small particles, e.g. fibres
CPC
B01J 19/00
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
19Chemical, physical or physico-chemical processes in general; Their relevant apparatus
C08B 1/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
BPOLYSACCHARIDES; DERIVATIVES THEREOF
1Preparatory treatment of cellulose for making derivatives thereof ; , e.g. pre-treatment, pre-soaking, activation
D21D 1/20
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
1Methods of beating or refining; Beaters of the Hollander type
20Methods of refining
D21D 5/02
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
5Purification of the pulp suspension by mechanical means; Apparatus therefor
02Straining or screening the pulp
D21H 11/08
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
11Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
08Mechanical or thermomechanical pulp
D21H 11/16
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
11Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
16modified by a particular after-treatment
Applicants
  • UPM-KYMMENE CORPORATION (AllExceptUS)
  • VEHNIÄINEN, Annikki [FI]/[FI] (UsOnly)
  • GUSTAFSSON, Helmer [FI]/[FI] (UsOnly)
  • KOSKINEN, Timo [FI]/[FI] (UsOnly)
Inventors
  • VEHNIÄINEN, Annikki
  • GUSTAFSSON, Helmer
  • KOSKINEN, Timo
Agents
  • TAMPEREEN PATENTTITOIMISTO OY
Priority Data
2010626130.11.2010FI
Publication Language English (EN)
Filing Language Finnish (FI)
Designated States
Title
(EN) A METHOD AND A SYSTEM FOR PRODUCING NANOCELLULOSE, AND NANOCELLULOSE
(FR) PROCÉDÉ ET SYSTÈME DE PRODUCTION DE NANOCELLULOSE, ET NANOCELLULOSE
Abstract
(EN)
The invention relates to a method for producing nanocellulose. In the method according to the invention, cellulose is refined by means of a first refiner (2a), the refined cellulose is separated by means of a first separator (3a) in such a manner that at least part of it belongs to an accepted fraction (A), water is removed from said accepted fraction (A) by means of a precipitator (4) and said accepted fraction is refined by means of a second refiner (2b) to produce nano-cellulose. The invention also relates to a corresponding system for producing nanocellulose and to nanocellulose produced by means of the method or system according to the invention.
(FR)
La présente invention concerne un procédé de production de nanocellulose. Dans le procédé selon l'invention, de la cellulose est raffinée au moyen d'un premier raffineur (2a), la cellulose ainsi raffinée est séparée au moyen d'un premier séparateur (3a) de façon à ce qu'au moins une partie de ladite cellulose raffinée appartienne à une fraction acceptée (A), l'eau est éliminée de ladite fraction acceptée (A) au moyen d'un précipitateur (4) et ladite fraction acceptée est raffinée au moyen d'un second raffineur (2b) en vue de la production de nanocellulose. L'invention concerne également un système correspondant de production de nanocellulose, ainsi que de la nanocellulose produite par le procédé ou le système de l'invention.
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