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1. WO2020065238 - PROCESS FOR RECOVERING THE STARCH PRESENT IN RECYCLED PAPER OR CARDBOARD, USE OF SAID STARCH

Publication Number WO/2020/065238
Publication Date 02.04.2020
International Application No. PCT/FR2019/052288
International Filing Date 26.09.2019
IPC
D21C 5/02 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
5Other processes for obtaining cellulose, e.g. cooking cotton linters
02Working-up waste paper
D21H 11/14 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
14Secondary fibres
D21H 17/28 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
17Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
20Macromolecular organic compounds
21of natural origin; Derivatives thereof
24Polysaccharides
28Starch
CPC
D21C 5/02
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
5Other processes for obtaining cellulose, e.g. cooking cotton linters
02Working-up waste paper
D21H 11/14
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
14Secondary fibres
D21H 17/28
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
17Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
20Macromolecular organic compounds
21of natural origin; Derivatives thereof
24Polysaccharides
28Starch
Applicants
  • CENTRE TECHNIQUE DE L'INDUSTRIE DES PAPIERS, CARTONS ET CELLULOSES [FR]/[FR]
  • SAICA PAPER EL
  • KADANT LAMORT
Inventors
  • FOUREST, Eric
  • NEYRET, Christophe
  • LASCAR, Alain
  • ANDRES, Serge
  • DURY, Benoit
  • HUBER, Patrick
Agents
  • VUILLERMOZ, Bruno
  • PALIX, Stéphane
  • DENJEAN, Eric
  • BUCHET, Anne
  • SEMAOUNE, Idriss
Priority Data
185895328.09.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) PROCESS FOR RECOVERING THE STARCH PRESENT IN RECYCLED PAPER OR CARDBOARD, USE OF SAID STARCH
(FR) PROCEDE DE RECUPERATION DE L'AMIDON PRESENT DANS LE PAPIER OU LE CARTON RECYCLE, UTILISATION DE CET AMIDON
Abstract
(EN)
The present invention relates to a process for recovering starch present in paper and/or cardboard, by: [a] preparation of an aqueous suspension A of fibres, [b] treatment of the aqueous suspension A and formation of two fractions: - fraction B containing water, fibres, fines and fillers; - fraction C containing water and dissolved and/or colloidal starch, fines and fillers, [c] separation of fraction C into two fractions: - fraction D containing water and dissolved starch, - fraction E containing water and colloidal starch, fines and fillers, [d] use or treatment of fraction D, [e] use or exploitation of fraction E.
(FR)
La présente invention concerne un procédé de récupération d'amidon présent dans du papier et/ou du carton, par : [a] préparation d'une suspension aqueuse A de fibres, [b] traitement, de la suspension aqueuse A et formation de deux fractions : - fraction B contenant de l'eau, des fibres, des fines et des charges, - fraction C contenant de l'eau et de l'amidon dissous et/ou colloïdal, des fines et des charges, [c] séparation de la fraction C, en deux fractions : - fraction D contenant de l'eau et de l'amidon dissous, - fraction E contenant de l'eau et de l'amidon colloïdal, des fines et des charges, [d] utilisation ou traitement de la fraction D, [e] utilisation ou valorisation de la fraction E.
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