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The Silicone Type Defoamers for Kraft Pulp Making Process
JAPAN TAPPI JOURNAL, 2001In the kraft pulp making process, extracted lignin liquid (black liquor) contains various surfactive materials which are derived from lignin. That means black liquor tends to make foam so easily that the kraft pulp making process is troubled with foam at any time.
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Electrolytic Processing of Kraft Black Liquor- Mass Transfer Investigation
ECS Meeting Abstracts, 2018As an alternative to the chemical approach reducing the pH of black liquor to precipitate lignin using carbon dioxide and sulfuric acid, we have developed an electrochemical avenue for lowering pH while recovering caustic. It includes electrolytic treatment of black liquor that reduces its alkalinity to the critical point of lignin precipitation ...
Jean-Noël Cloutier +5 more
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The Progress in Recausticizing Technology of Kraft Pulping Process
JAPAN TAPPI JOURNAL, 2010苛性化工程は，クラフトパルプ製造における重要なプロセスの一つであり，この技術の確立がクラフトパルプ発展の一端を担ってきた。ここでは，クラフトパルププロセスにおける苛性化工程の位置付けと，苛性化技術の変遷を整理することにより，国内における今後の動向及び課題を推測する。
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Developments in Kraft-Process Recovery-Unit Design and Performance
Journal of Fluids Engineering, 1948Abstract Recent developments in design of Kraft-process recovery units, utilizing the Tomlinson method of combustion, are described. The comparative performance is given of early and recent types of Tomlinson recovery units. Economic factors affecting the selection of recovery-system equipment are included.
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Magnesium-lime process for decolourization of kraft mill effluents
1976A magnesium-plus-lime coagulation process, incorporating magnesium recovery by sludge carbonation, recently developed for water treatment has been tested for its application to the decolourization of kraft mill effluents. Total bleached kraft mill effluent (BKME), after biological treatment and effluent from the first caustic extraction stage of a ...
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Three concepts for intensification of nordic kraft pulp processes
2014Process intensification of Nordic kraft pulp mill can be achieved by applying proposed concepts. Sulphur lean concept enables production of value-added sulphurless by-products from pulp mill and efficiency of pulp mill if gasification of black liquor is applied.
Kangas, Petteri +2 more
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Process decolors kraft mill effluent
Chemical & Engineering News Archive, 1973openaire +1 more source
Process efficiency with entropy – The recovery cycle in the kraft pulp process
Nordic Pulp & Paper Research Journal, 2005Tobias Richards, Hans Theliander
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