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WO1991002119A1 - Traitement de matieres fibreuses - Google Patents

Traitement de matieres fibreuses Download PDF

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Publication number
WO1991002119A1
WO1991002119A1 PCT/GB1990/001176 GB9001176W WO9102119A1 WO 1991002119 A1 WO1991002119 A1 WO 1991002119A1 GB 9001176 W GB9001176 W GB 9001176W WO 9102119 A1 WO9102119 A1 WO 9102119A1
Authority
WO
WIPO (PCT)
Prior art keywords
suspension
mixture
fibres
rosin emulsion
aluminium salt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB1990/001176
Other languages
English (en)
Inventor
Peter Christopher Robert Street
David Barlow
Michael James Jaycock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ciba Specialty Chemicals RC GB Ltd
Original Assignee
Roe Lee Paper Chemicals Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26295679&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1991002119(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB898917407A external-priority patent/GB8917407D0/en
Priority claimed from GB898917408A external-priority patent/GB8917408D0/en
Application filed by Roe Lee Paper Chemicals Co Ltd filed Critical Roe Lee Paper Chemicals Co Ltd
Priority to DE69028631T priority Critical patent/DE69028631T2/de
Priority to EP90912618A priority patent/EP0485498B2/fr
Priority to CA002059529A priority patent/CA2059529C/fr
Publication of WO1991002119A1 publication Critical patent/WO1991002119A1/fr
Priority to GB929201848A priority patent/GB9201848D0/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63—Inorganic compounds
    • D21H17/66—Salts, e.g. alums
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/62—Rosin; Derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D21H23/06—Controlling the addition
    • D21H23/14—Controlling the addition by selecting point of addition or time of contact between components
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/04—Addition to the pulp; After-treatment of added substances in the pulp
    • D21H23/20—Apparatus therefor

Definitions

  • the method of the first aspect of the invention is particularly applicable to the treatment of fibre suspensions with a mixture of additives which together give an unstable system, i.e. one which flocculates on admixture of the two additives.
  • the two additives are rapidly mixed and introduced at relatively high concentrations into the fibre suspension before flocculation problems occur.
  • a particular example of such an additive system is a mixture of a rosin emulsion and an aluminium salt solution, and a further example is a mixture of cationic pol mer (e.g. DADMAC) and anionic rosin emulsion.
  • the fibre suspension will itself be a flowing stream and the localised zone of the freshly mixed solution of the aluminium salt and rosin emulsion is provided in the fibre suspension stream by the methods described in more detail below.
  • the localised zone is distributed within such a fibre suspension stream by the flow thereof.
  • the pH of the localised zone in the suspension may as a matter of practice be difficult to measure.
  • the pH of the suspension itself prior to mixture with the rosin emulsion (aluminium salt solution) is easy to measure and it is simply necessary to ensure that a mixture of the rosin emulsion/aluminium salt solutions will be of an acidic pH less than that of the fibre suspension.
  • the invention thus provides the significant advantage that it may be used for the sizing, with rosin emulsion, of cellulose fibre suspensions which contain calcium carbonate and which are at a pH above 6. With such suspensions, the method of the invention does not give rise to unacceptable deposits of calcium sulphate, calcium* aluminium sulphate, and related compounds in the paper machine. Any deposits formed are likely to be of a very small crystal size and are probably included in the final paper.
  • the aluminium salt used in the method of the invention should preferably be an acidic salt and is most preferably alum. It is however possible to use other aluminium salts that will give rise to polyhydroxy aluminium ions and/or A1(0H) 3 , eg. polyhydroxy aluminium salts such as the compound known as polyaluminium chloride.
  • the amount of the alum solution used will preferably be such as to provide 1- 4% by weight of alum (expressed as A1 2 (S0 4 ) 3 .18H 2 0) dry basis on the fibres.
  • Other aluminium salts may be used in appropriate amounts. For example, we have found that the amount of polyaluminium chloride used in the process may be about V 5 th of the corresponding amount of alum required.
  • Fig. 1 is a plot of total dissolved aluminium (A t ) ys_ pH and shows the stability region of freshly precipitated A1(0H) 3 based on the assumption that the only other species present are A1(0H) 4 ⁇ , Al(OH) 2+ , its dimer A1 2 (0H) 2 4+ , Al 13 (0H) 34 5+ , and A1 7 (0H) 17 4+ , as well as the uncomplexed ion Al 3+ .
  • Fig. 1 is a thermodynamic diagram and may be thought of as corresponding to equilibration times longer than those normally encountered in the sizing process in a paper mill.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

Procédé de production d'un mélange d'additifs dans une suspension aqueuse de fibres à utiliser dans la fabrication du papier, consistant à prévoir dans la suspension une zone localisée d'un mélange fraîchement préparé de courants discrets de liquide d'additifs, et à provoquer la dispersion dudit mélange fraîchement préparé dans la suspension. Les courants d'additifs peuvent se composer d'une émulsion de colophane et d'une solution des sels d'aluminium.
PCT/GB1990/001176 1989-07-29 1990-07-30 Traitement de matieres fibreuses Ceased WO1991002119A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE69028631T DE69028631T2 (de) 1989-07-29 1990-07-30 Behandlung von fasermaterialien
EP90912618A EP0485498B2 (fr) 1989-07-29 1990-07-30 Traitement de matieres fibreuses
CA002059529A CA2059529C (fr) 1989-07-29 1990-07-30 Traitement de matieres fibreuses
GB929201848A GB9201848D0 (en) 1989-07-29 1992-01-29 Treatment of fibrous materials

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB898917407A GB8917407D0 (en) 1989-07-29 1989-07-29 Papermaking
GB898917408A GB8917408D0 (en) 1989-07-29 1989-07-29 Paper sizing
GB8917407.2 1989-07-29
GB8917408.0 1989-07-29

Publications (1)

Publication Number Publication Date
WO1991002119A1 true WO1991002119A1 (fr) 1991-02-21

Family

ID=26295679

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1990/001176 Ceased WO1991002119A1 (fr) 1989-07-29 1990-07-30 Traitement de matieres fibreuses

Country Status (7)

Country Link
EP (1) EP0485498B2 (fr)
AU (1) AU6186490A (fr)
CA (1) CA2059529C (fr)
DE (1) DE69028631T2 (fr)
ES (1) ES2094161T5 (fr)
GB (1) GB9201848D0 (fr)
WO (1) WO1991002119A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292158A (en) * 1994-07-26 1996-02-14 Roe Lee Paper Chemicals Compan Method of sizing paper
WO1999043887A1 (fr) * 1998-02-26 1999-09-02 Andritz-Ahlstrom Oy Procede et appareil d'alimentation d'un flux liquide en produit chimique
RU2200217C2 (ru) * 2001-03-11 2003-03-10 Хабаровский государственный технический университет Устройство для введения полимерных добавок в бумажную массу
JP2007508129A (ja) * 2003-10-08 2007-04-05 ウエテンド テクノロジーズ オサケユキチュア 液体の流れに化学物質を供給するための方法および装置
US7234857B2 (en) 1998-02-26 2007-06-26 Wetend Technologies Oy Method and apparatus for feeding a chemical into a liquid flow
DE102010028577A1 (de) 2010-05-05 2011-11-10 Voith Patent Gmbh Verfahren zur Zumischung einer Chemikalie zu einem Prozessstrom
RU2432988C2 (ru) * 2005-12-14 2011-11-10 Налко Компани Смешивание химических веществ в трубе для жидкой массы (варианты)
WO2011138161A1 (fr) * 2010-05-05 2011-11-10 Voith Patent Gmbh Dispositif mélangeur
WO2013072277A3 (fr) * 2011-11-14 2013-07-18 Basf Se Composition renfermant de l'akd et fabrication de papier et de carton

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6543382B1 (en) * 2002-02-08 2003-04-08 Delaval, Inc. Side outlet milking claw

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2041285A (en) * 1933-09-28 1936-05-19 Cew Judson A De Paper sizing
GB2141751A (en) * 1983-06-03 1985-01-03 Roe Lee Paper Chemicals Compan Sizing compositions

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2041285A (en) * 1933-09-28 1936-05-19 Cew Judson A De Paper sizing
GB2141751A (en) * 1983-06-03 1985-01-03 Roe Lee Paper Chemicals Compan Sizing compositions

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY. vol. 53, no. 5, November 1982, APPLETON US page 595 E.NAKATA: "Apparatus for feeding additive in circular papermaking machine." see the whole document *
TAPPI JOURNAL. vol. 65, no. 11, November 1982, ATLANTA US pages 105 - 109; J.MARTON ET AL.: "Some new principles to optimize rosin sizing." see the whole document *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292158B (en) * 1994-07-26 1998-12-09 Roe Lee Paper Chemicals Compan Sizing method
GB2292158A (en) * 1994-07-26 1996-02-14 Roe Lee Paper Chemicals Compan Method of sizing paper
US7234857B2 (en) 1998-02-26 2007-06-26 Wetend Technologies Oy Method and apparatus for feeding a chemical into a liquid flow
WO1999043887A1 (fr) * 1998-02-26 1999-09-02 Andritz-Ahlstrom Oy Procede et appareil d'alimentation d'un flux liquide en produit chimique
JP2002505179A (ja) * 1998-02-26 2002-02-19 アンドリツ − アールストロム オサケユキチュア 液体流の中に化学薬剤を供給するための方法と装置
US6659636B1 (en) 1998-02-26 2003-12-09 Wetend Technologies Oy Method and apparatus for feeding a chemical into a liquid flow
EP1219344A3 (fr) * 1998-02-26 2004-08-25 Wetend Technologies Oy Procédé et appareil pour alimenter un produit chimique dans un courant liquide
US7758725B2 (en) 1998-02-26 2010-07-20 Wetend Technologies Oy Method of mixing a paper making chemical into a fiber suspension flow
RU2200217C2 (ru) * 2001-03-11 2003-03-10 Хабаровский государственный технический университет Устройство для введения полимерных добавок в бумажную массу
JP2007508129A (ja) * 2003-10-08 2007-04-05 ウエテンド テクノロジーズ オサケユキチュア 液体の流れに化学物質を供給するための方法および装置
JP4871724B2 (ja) * 2003-10-08 2012-02-08 ウエテンド テクノロジーズ オサケユキチュア 液体の流れに化学物質を供給するための方法および装置
RU2432988C2 (ru) * 2005-12-14 2011-11-10 Налко Компани Смешивание химических веществ в трубе для жидкой массы (варианты)
DE102010028577A1 (de) 2010-05-05 2011-11-10 Voith Patent Gmbh Verfahren zur Zumischung einer Chemikalie zu einem Prozessstrom
WO2011138143A1 (fr) 2010-05-05 2011-11-10 Voith Patent Gmbh Procédé et dispositif destinés à ajouter et à mélanger un produit chimique dans un flux de traitement
WO2011138161A1 (fr) * 2010-05-05 2011-11-10 Voith Patent Gmbh Dispositif mélangeur
CN103002977A (zh) * 2010-05-05 2013-03-27 沃依特专利有限责任公司 用于将化学品混合入过程流内的方法和设备
CN103002977B (zh) * 2010-05-05 2015-11-25 沃依特专利有限责任公司 用于将化学品混合入过程流内的方法和设备
WO2013072277A3 (fr) * 2011-11-14 2013-07-18 Basf Se Composition renfermant de l'akd et fabrication de papier et de carton
US9359724B2 (en) 2011-11-14 2016-06-07 Kemira Oyj AKD composition and manufacture of paper and paperboard

Also Published As

Publication number Publication date
ES2094161T3 (es) 1997-01-16
CA2059529A1 (fr) 1991-01-30
AU6186490A (en) 1991-03-11
DE69028631T2 (de) 1997-02-27
ES2094161T5 (es) 2000-06-16
DE69028631D1 (de) 1996-10-24
CA2059529C (fr) 2001-11-27
EP0485498B2 (fr) 1999-12-08
GB9201848D0 (en) 1992-03-18
EP0485498B1 (fr) 1996-09-18
EP0485498A1 (fr) 1992-05-20

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