RU2011142599A - PEROXIDAL-ALKALINE WASTE TREATMENT AT INTEGRATED NEUTRAL-ALKALINE CELLULOSE-PAPER PLANT - Google Patents
PEROXIDAL-ALKALINE WASTE TREATMENT AT INTEGRATED NEUTRAL-ALKALINE CELLULOSE-PAPER PLANT Download PDFInfo
- Publication number
- RU2011142599A RU2011142599A RU2011142599/12A RU2011142599A RU2011142599A RU 2011142599 A RU2011142599 A RU 2011142599A RU 2011142599/12 A RU2011142599/12 A RU 2011142599/12A RU 2011142599 A RU2011142599 A RU 2011142599A RU 2011142599 A RU2011142599 A RU 2011142599A
- Authority
- RU
- Russia
- Prior art keywords
- waste
- alkali
- fiber
- hydrogen peroxide
- specified
- Prior art date
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
- D21C9/001—Modification of pulp properties
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/005—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives organic compounds
-
- 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
- D21C9/001—Modification of pulp properties
- D21C9/007—Modification of pulp properties by mechanical or physical means
-
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Abstract
1. Способ обработки механических древесных масс, который включает следующие этапы:a) обеспечение целлюлозным материалом, полученным из древесины мягких пород или древесины твердых пород;b) введение целлюлозного материала в основную магистраль системы рафинирования для конверсии в основную древесную массу;c) отделение отходов от основной древесной массы посредством сортирования или фракционированияd) смешивание с указанными отходами потока нейтрально-щелочной сточной воды, рециркулируемого из процесса изготовления бумаги, в значительной мере, не содержащего окисляющихся соединений серы и содержащего буферный агент, с образованием волокна из отходов;e) добавление к указанному волокну из отходов раствора для обработки, содержащего пероксид водорода и щелочь, где количество щелочи не превышает 3,5 вес.% (в расчете на 100%) в расчете на волокно, и соотношение щелочи и пероксида водорода составляет от около 0,35/1,0 до около 1,5/1,0; иf) добавление хелатирующего агента для контроля над ионами металлов, оказывающих отрицательное воздействие на устойчивость пероксида водорода, к указанному волокну из отходов и указанному потоку нейтрально-щелочной сточной воды.2. Способ по п.1, где указанная щелочь выбирается из группы, которая состоит из гидроксида натрия, карбоната натрия или бикарбоната натрия3. Способ по п.1, где указанный хелатирующий агент выбирается из группы, которая состоит из аминополикарбоновых кислот, фосфоновых кислот, поликарбоновых кислот, полиакрилатов, полиаспартатов, глюконатов и цитратов.4. Способ по п.1, где указанная щелочь и пероксид водорода добавляются в сочетании с указанным волокном из отходов перед1. A method of processing mechanical wood pulp, which includes the following steps: a) providing cellulosic material obtained from softwood or hardwood; b) introducing cellulosic material into the main line of the refining system for conversion into main wood pulp; c) waste separation from the main wood pulp by screening or fractionation d) mixing with the specified waste stream of neutral alkaline waste water, recycled from the papermaking process, substantially free of oxidizable sulfur compounds and containing a buffering agent, with the formation of fibers from the waste; e) adding to said fiber from a waste treatment solution containing hydrogen peroxide and an alkali, where the amount of alkali does not exceed 3.5 wt.% (based on 100%) calculated as fiber, and the ratio of alkali to hydrogen peroxide is from about 0.35 / 1.0 to about 1.5 / 1.0; and f) adding a chelating agent to control metal ions that adversely affect hydrogen peroxide resistance to said waste fiber and said neutral alkaline waste water stream. A method according to claim 1, wherein said alkali is selected from the group consisting of sodium hydroxide, sodium carbonate or sodium bicarbonate3. The method of claim 1, wherein said chelating agent is selected from the group consisting of aminopolycarboxylic acids, phosphonic acids, polycarboxylic acids, polyacrylates, polyaspartates, gluconates and citrates. The method of claim 1, wherein said alkali and hydrogen peroxide are added in combination with said waste fiber before
Claims (6)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18707309P | 2009-06-15 | 2009-06-15 | |
US61/187,073 | 2009-06-15 | ||
PCT/US2010/037880 WO2010147812A1 (en) | 2009-06-15 | 2010-06-09 | Alkaline peroxide treatment of rejects in an integrated neutral-alkaline paper mill |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2011142599A true RU2011142599A (en) | 2013-04-27 |
RU2495177C2 RU2495177C2 (en) | 2013-10-10 |
Family
ID=43356689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2011142599/12A RU2495177C2 (en) | 2009-06-15 | 2010-06-09 | Peroxide-alkaline treatment of waste products on integrated neutral-alkaline pulp and paper plant |
Country Status (5)
Country | Link |
---|---|
US (1) | US20120097350A1 (en) |
EP (1) | EP2443280B1 (en) |
CN (1) | CN102459753A (en) |
RU (1) | RU2495177C2 (en) |
WO (1) | WO2010147812A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102776795B (en) * | 2012-08-03 | 2014-06-04 | 常州市春江化学有限公司 | Application of organic phosphonic acid in pulp bleaching process |
CA2824076A1 (en) | 2012-08-21 | 2014-02-21 | University Of New Brunswick | System and method for reclaiming rejects in sulfite pulping |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE441282B (en) * | 1984-02-22 | 1985-09-23 | Mo Och Domsjoe Ab | PROCEDURE FOR THE PREPARATION OF IMPROVED HOG REPLACEMENT MASS |
US4614646A (en) * | 1984-12-24 | 1986-09-30 | The Dow Chemical Company | Stabilization of peroxide systems in the presence of alkaline earth metal ions |
AUPM452794A0 (en) * | 1994-03-17 | 1994-04-14 | Amcor Limited | Waste water recovery system |
AU4271596A (en) * | 1995-12-19 | 1997-07-14 | Kvaerner Hymac Inc. | Process for treating refiner pulp |
ES2209420T3 (en) * | 1998-04-17 | 2004-06-16 | Alberta Research Council, Inc. | LIGNOCELLULOSIC PULP PRODUCTION METHOD FROM NON-WOOD SPECIES. |
WO2000047812A1 (en) * | 1999-02-15 | 2000-08-17 | Kiram Ab | Process for oxygen pulping of lignocellulosic material and recovery of pulping chemicals |
US6881299B2 (en) * | 2001-05-16 | 2005-04-19 | North American Paper Corporation | Refiner bleaching with magnesium oxide and hydrogen peroxide |
US6743332B2 (en) * | 2001-05-16 | 2004-06-01 | Weyerhaeuser Company | High temperature peroxide bleaching of mechanical pulps |
GB0413068D0 (en) * | 2004-06-11 | 2004-07-14 | Imerys Minerals Ltd | Treatment of pulp |
FI121311B (en) | 2005-05-03 | 2010-09-30 | M Real Oyj | A process for the preparation of a mechanical pulp for use in the manufacture of paper and board |
RU2322504C1 (en) * | 2006-06-26 | 2008-04-20 | Институт биоорганической химии им. академиков М.М. Шемякина и Ю.А. Овчинникова Российской академии наук | Method for preparing genetic-engineering human insulin |
US8262851B2 (en) | 2006-08-10 | 2012-09-11 | Andritz Inc. | Processes and systems for the pulping of lignocellulosic materials |
CA2661304C (en) * | 2006-08-25 | 2016-12-06 | Robert A. Rossi | Process and system for producing commercial quality carbon dioxide from high solids lime mud |
-
2010
- 2010-06-09 US US13/264,206 patent/US20120097350A1/en not_active Abandoned
- 2010-06-09 WO PCT/US2010/037880 patent/WO2010147812A1/en active Application Filing
- 2010-06-09 EP EP10789951.0A patent/EP2443280B1/en active Active
- 2010-06-09 RU RU2011142599/12A patent/RU2495177C2/en active
- 2010-06-09 CN CN2010800264508A patent/CN102459753A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
EP2443280B1 (en) | 2020-12-09 |
WO2010147812A1 (en) | 2010-12-23 |
CN102459753A (en) | 2012-05-16 |
EP2443280A4 (en) | 2014-08-13 |
RU2495177C2 (en) | 2013-10-10 |
US20120097350A1 (en) | 2012-04-26 |
EP2443280A1 (en) | 2012-04-25 |
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