DE4118899C1 - - Google Patents

Info

Publication number
DE4118899C1
DE4118899C1 DE4118899A DE4118899A DE4118899C1 DE 4118899 C1 DE4118899 C1 DE 4118899C1 DE 4118899 A DE4118899 A DE 4118899A DE 4118899 A DE4118899 A DE 4118899A DE 4118899 C1 DE4118899 C1 DE 4118899C1
Authority
DE
Germany
Prior art keywords
zeolite
bleaching
acid
wood pulp
molecular weight
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.)
Expired - Lifetime
Application number
DE4118899A
Other languages
German (de)
English (en)
Inventor
Wolfgang Dr. 6000 Frankfurt De Leonhardt
Kurt 6451 Hammersbach De Schmidt
Hans Ulrich Dr. 6467 Gondsroth De Suess
Holger Dr. 8756 Kahl De Glaum
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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
Application filed by Degussa GmbH filed Critical Degussa GmbH
Priority to DE4118899A priority Critical patent/DE4118899C1/de
Priority to DE92107106T priority patent/DE59200018D1/de
Priority to AT92107106T priority patent/ATE96186T1/de
Priority to EP92107106A priority patent/EP0518036B1/de
Priority to US07/885,688 priority patent/US5227022A/en
Priority to PL92294801A priority patent/PL168012B1/pl
Priority to CA002070556A priority patent/CA2070556A1/en
Priority to FI922618A priority patent/FI922618A/fi
Priority to CS921709A priority patent/CZ283368B6/cs
Priority to NO922225A priority patent/NO178831C/no
Application granted granted Critical
Publication of DE4118899C1 publication Critical patent/DE4118899C1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents
DE4118899A 1991-06-08 1991-06-08 Expired - Lifetime DE4118899C1 (US06277897-20010821-C00009.png)

Priority Applications (10)

Application Number Priority Date Filing Date Title
DE4118899A DE4118899C1 (US06277897-20010821-C00009.png) 1991-06-08 1991-06-08
AT92107106T ATE96186T1 (de) 1991-06-08 1992-04-25 Verwendung von zeolithen in bleichverfahren.
EP92107106A EP0518036B1 (de) 1991-06-08 1992-04-25 Verwendung von Zeolithen in Bleichverfahren
DE92107106T DE59200018D1 (de) 1991-06-08 1992-04-25 Verwendung von Zeolithen in Bleichverfahren.
US07/885,688 US5227022A (en) 1991-06-08 1992-05-19 Process for increasing pulp brightness with zeolites and easily decomposable organic chelating agents
PL92294801A PL168012B1 (en) 1991-06-08 1992-06-05 Whitening process employing zeolytes
CA002070556A CA2070556A1 (en) 1991-06-08 1992-06-05 Process for bleaching wood pulp
FI922618A FI922618A (fi) 1991-06-08 1992-06-05 Anvaendning av zeoliter i blekningsfoerfarande
CS921709A CZ283368B6 (cs) 1991-06-08 1992-06-05 Použití zeolitů při bělení
NO922225A NO178831C (no) 1991-06-08 1992-06-05 Fremgangsmåte for bleking i nærvær av en chelatdanner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4118899A DE4118899C1 (US06277897-20010821-C00009.png) 1991-06-08 1991-06-08

Publications (1)

Publication Number Publication Date
DE4118899C1 true DE4118899C1 (US06277897-20010821-C00009.png) 1992-10-22

Family

ID=6433502

Family Applications (2)

Application Number Title Priority Date Filing Date
DE4118899A Expired - Lifetime DE4118899C1 (US06277897-20010821-C00009.png) 1991-06-08 1991-06-08
DE92107106T Expired - Fee Related DE59200018D1 (de) 1991-06-08 1992-04-25 Verwendung von Zeolithen in Bleichverfahren.

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE92107106T Expired - Fee Related DE59200018D1 (de) 1991-06-08 1992-04-25 Verwendung von Zeolithen in Bleichverfahren.

Country Status (9)

Country Link
US (1) US5227022A (US06277897-20010821-C00009.png)
EP (1) EP0518036B1 (US06277897-20010821-C00009.png)
AT (1) ATE96186T1 (US06277897-20010821-C00009.png)
CA (1) CA2070556A1 (US06277897-20010821-C00009.png)
CZ (1) CZ283368B6 (US06277897-20010821-C00009.png)
DE (2) DE4118899C1 (US06277897-20010821-C00009.png)
FI (1) FI922618A (US06277897-20010821-C00009.png)
NO (1) NO178831C (US06277897-20010821-C00009.png)
PL (1) PL168012B1 (US06277897-20010821-C00009.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10316467B2 (en) 2013-11-26 2019-06-11 Lenzing Aktiengesellschaft Process for pretreating reclaimed cotton fibers to be used in the production of molded bodies from regenerated cellulose
US10370778B2 (en) 2015-02-06 2019-08-06 Lenzing Aktiengesellschaft Recycling of man-made cellulosic fibers

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5733693A (en) 1993-08-05 1998-03-31 Kimberly-Clark Worldwide, Inc. Method for improving the readability of data processing forms
US5773182A (en) 1993-08-05 1998-06-30 Kimberly-Clark Worldwide, Inc. Method of light stabilizing a colorant
US6211383B1 (en) 1993-08-05 2001-04-03 Kimberly-Clark Worldwide, Inc. Nohr-McDonald elimination reaction
US5645964A (en) 1993-08-05 1997-07-08 Kimberly-Clark Corporation Digital information recording media and method of using same
US5681380A (en) 1995-06-05 1997-10-28 Kimberly-Clark Worldwide, Inc. Ink for ink jet printers
US6017471A (en) 1993-08-05 2000-01-25 Kimberly-Clark Worldwide, Inc. Colorants and colorant modifiers
US5721287A (en) 1993-08-05 1998-02-24 Kimberly-Clark Worldwide, Inc. Method of mutating a colorant by irradiation
US6017661A (en) 1994-11-09 2000-01-25 Kimberly-Clark Corporation Temporary marking using photoerasable colorants
US5865471A (en) 1993-08-05 1999-02-02 Kimberly-Clark Worldwide, Inc. Photo-erasable data processing forms
US6071979A (en) 1994-06-30 2000-06-06 Kimberly-Clark Worldwide, Inc. Photoreactor composition method of generating a reactive species and applications therefor
US5685754A (en) 1994-06-30 1997-11-11 Kimberly-Clark Corporation Method of generating a reactive species and polymer coating applications therefor
US6242057B1 (en) 1994-06-30 2001-06-05 Kimberly-Clark Worldwide, Inc. Photoreactor composition and applications therefor
US6008268A (en) 1994-10-21 1999-12-28 Kimberly-Clark Worldwide, Inc. Photoreactor composition, method of generating a reactive species, and applications therefor
US5786132A (en) 1995-06-05 1998-07-28 Kimberly-Clark Corporation Pre-dyes, mutable dye compositions, and methods of developing a color
JP2001515524A (ja) 1995-06-05 2001-09-18 キンバリー クラーク ワールドワイド インコーポレイテッド 新規プレ染料
ES2161357T3 (es) 1995-06-28 2001-12-01 Kimberly Clark Co Composicion estabilizante de colorantes.
PL321573A1 (en) 1995-11-28 1997-12-08 Kimberly Clark Co Improved stabilising agents for dyes
US5855655A (en) 1996-03-29 1999-01-05 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US5891229A (en) 1996-03-29 1999-04-06 Kimberly-Clark Worldwide, Inc. Colorant stabilizers
US5902454A (en) * 1996-12-13 1999-05-11 Ciba Specialty Chemicals Corporation Method of whitening lignin-containing paper pulps
US6524379B2 (en) 1997-08-15 2003-02-25 Kimberly-Clark Worldwide, Inc. Colorants, colorant stabilizers, ink compositions, and improved methods of making the same
CA2298615C (en) 1998-06-03 2009-03-31 Kimberly-Clark Worldwide, Inc. Neonanoplasts produced by microemulsion technology and inks for ink jet printing
BR9906513A (pt) 1998-06-03 2001-10-30 Kimberly Clark Co Fotoiniciadores novos e aplicações para osmesmos
US6228157B1 (en) 1998-07-20 2001-05-08 Ronald S. Nohr Ink jet ink compositions
AU1309800A (en) 1998-09-28 2000-04-17 Kimberly-Clark Worldwide, Inc. Novel photoinitiators and applications therefor
WO2000042110A1 (en) 1999-01-19 2000-07-20 Kimberly-Clark Worldwide, Inc. Novel colorants, colorant stabilizers, ink compositions, and improved methods of making the same
US6331056B1 (en) 1999-02-25 2001-12-18 Kimberly-Clark Worldwide, Inc. Printing apparatus and applications therefor
US6294698B1 (en) 1999-04-16 2001-09-25 Kimberly-Clark Worldwide, Inc. Photoinitiators and applications therefor
US6368395B1 (en) 1999-05-24 2002-04-09 Kimberly-Clark Worldwide, Inc. Subphthalocyanine colorants, ink compositions, and method of making the same
US7001484B2 (en) 2000-05-04 2006-02-21 University Of New Brunswick Peroxide bleaching of wood pulp using stabilizers and sodium hydrosulfide reducing agent
US8298373B2 (en) 2008-02-07 2012-10-30 University Of New Brunswick Combined process of peroxide bleaching of wood pulps and addition of optical brightening agents
EP2288752B1 (en) * 2008-06-20 2014-03-12 International Paper Company Composition and recording sheet with improved optical properties
LU500847B1 (en) 2021-11-11 2023-05-11 Kolicevo Karton D O O Use of hydrophilic zeolites in the production of cellulose-based (cardboard) packaging

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3739655A1 (de) * 1987-11-23 1989-06-01 Sued Chemie Ag Bleichmittelzusatz

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3709779A (en) * 1971-11-17 1973-01-09 Int Paper Canada Bleaching of mechanical pulps with hydrosulfite in the presence of an alkali metal silikate
US4238282A (en) * 1979-07-23 1980-12-09 Nalco Chemical Company Chemical treatments in bleaching stages which increase pulp brightness

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3739655A1 (de) * 1987-11-23 1989-06-01 Sued Chemie Ag Bleichmittelzusatz

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
HAFNER, Volker et.al.: "Natriumcarbonat als Alkaliquelle bei der Holzstoffbleiche" in DE-Z: Das Papier, 1990, Heft 10, S. 521-528 *
RAVEN, Axel von, KOCH, H.-G., MAYER, H.: "Peroxid-Bleiche von Holzstoffen im neutralen bis schwach alkalischen pH-Bereich mit neuartigem Aktivator/Stabilisator-System" in DE-Z.: Wochenblatt für Papierfabrikation, 1991, Nr. 20, S. 824-829 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10316467B2 (en) 2013-11-26 2019-06-11 Lenzing Aktiengesellschaft Process for pretreating reclaimed cotton fibers to be used in the production of molded bodies from regenerated cellulose
US10370778B2 (en) 2015-02-06 2019-08-06 Lenzing Aktiengesellschaft Recycling of man-made cellulosic fibers
AT517020B1 (de) * 2015-02-06 2020-02-15 Chemiefaser Lenzing Ag Recycling von cellulosischen Kunstfasern

Also Published As

Publication number Publication date
NO922225L (no) 1992-12-09
PL168012B1 (en) 1995-12-30
FI922618A0 (fi) 1992-06-05
ATE96186T1 (de) 1993-11-15
PL294801A1 (US06277897-20010821-C00009.png) 1993-02-08
US5227022A (en) 1993-07-13
EP0518036A1 (de) 1992-12-16
EP0518036B1 (de) 1993-10-20
NO178831C (no) 1996-06-12
CZ283368B6 (cs) 1998-04-15
FI922618A (fi) 1992-12-09
CA2070556A1 (en) 1992-12-09
DE59200018D1 (de) 1993-11-25
CS170992A3 (en) 1992-12-16
NO922225D0 (no) 1992-06-05
NO178831B (no) 1996-03-04

Similar Documents

Publication Publication Date Title
DE4118899C1 (US06277897-20010821-C00009.png)
DE69912128T2 (de) Verfahren zur herstellung lignocellulosehaltiger pulpe aus nicht holzartigem material
DE69306974T3 (de) Verfahren zur deligrifizierung von lignocellulosehaltigem zellstoff
DE3017712C2 (de) Verfahren zur alkalischen Extraktion von Fasermaterial enthaltenden Cellulosesuspensionen nach Behandlung mit Chlor oder Chlordioxid oder Mischungen davon
DE1546276A1 (de) Verfahren zum Bleichen von zellulosehaltigem Material
DE2936551A1 (en) Bleaching lignocellulose material with bleaching agents containing peroxide
EP0171575A1 (de) Verfahren zur Delignifizierung und Bleiche von Zellstoffen
DE69725573T2 (de) Verfahren zum bleichen von zellstoff
DE3531563C2 (US06277897-20010821-C00009.png)
EP0141355B1 (de) Verfahren zum Bleichen von Holzschliff
DE69731617T2 (de) Verfahren zum bleichen von hochausbeutepapierzellstoff
EP0842321B1 (de) Verfahren zur stabilisierung von alkalischen peroxidenthaltenden bleichflotten für die bleiche von zellstoffen und anderen faserstoffen
DE60110618T2 (de) Verfahren zur rückgewinnung von organischen säuren aus bleichlösungen
WO1995014808A1 (de) Verwendung stickstoff-haltiger komplexbildner bei der holzstoffbleiche
DE1062101B (de) Verfahren zur Gewinnung von Holzzellstoff fuer Papier
CH641515A5 (en) Multi-stage process for complete bleaching of pulp
DE1546253A1 (de) Bleichverfahren
DE69304342T3 (de) Verfahren zum bleichen von lignocellulose-enthaltendem zellstoff
DE2254862A1 (de) Verfahren zum bleichen von abfallpapier-ganzzeug
CH676256A5 (US06277897-20010821-C00009.png)
DE4420221C2 (de) Verfahren zur Gewinnung von Cellulosefasermaterial aus Calciumpektinat-haltigem, pflanzlichem Substrat
DE19729155A1 (de) Verfahren zur Herstellung von Pulpe
DE284761C (US06277897-20010821-C00009.png)
DE602004011911T9 (de) Aktivator zum Zellstoffbleichen
EP0775226B2 (de) Verwendung eines stabilisierungsmittel-konzentrats für wässrige bleich- und behandlungslösungen auf basis von wasserstoffperoxid und/oder anderen anorganischen und/oder organischen peroxoverbindungen

Legal Events

Date Code Title Description
8100 Publication of patent without earlier publication of application
D1 Grant (no unexamined application published) patent law 81
8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8339 Ceased/non-payment of the annual fee