kraft process

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kraft process

Chemical method for producing wood pulp using caustic soda and sodium sulfide as the liquor in which the pulpwood is cooked to loosen the fibres. The process (from German kraft, “strong”) produces particularly strong and durable paper; another advantage is its capability of digesting pine chips; resins dissolve in the alkaline liquor and are recovered as tall oil, a valuable by-product. Recovery of sodium compounds is important in the economy of the process. In modern kraft mills, operations are completely contained; waste streams are recycled and reused, eliminating water pollution.

kraft process [′kraft ‚prä·səs]

(chemical engineering)

sulfate pulping

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No references found			In both soda AQ and kraft processes, cooking time can be reduced (from 120 min to 60 min in the kraft process and from 90 min to 60 min in the soda-AQ process). Summaries of March 2005 peer-reviewed papers by Solutions - for People, Processes and Paper The key reasons for the growing dominance of bleached kraft grades in the market pulp sector are the following: * The kraft process is more flexible than the sulphite process in using the raw material base. What is the future for key pulp grades? by Solutions - for People, Processes and Paper As far as the kraft process parameters are concerned, for the same kappa number (14, obtained by adjusting pulping time), the HexA content decreases when active alkali increases from 17% to 24% and increases with sulfidity in the range 15%-28%. Hexenuronic acid contents of Eucalyptus globulus kraft pulps: ... by Silvestre, Armando J.D. / Solutions - for People, Processes and Paper			Kozyrevskii, Ivan Petrovich KP KP&D kPa KPC Kpelle Kpong KQML Kr Kra Kra, Isthmus of Kraal Kraatz, Helmut Krab Krachkovskii, Ignatii Krachkovskii, Ignatii Iulianovich Kraepelin, Emil Kraevskii, Andrei Kraevskii, Andrei Aleksandrovich Krafft, Adam Krafft-Ebing Krafft-Ebing, Richard von Krafft-Ebing, Richard, Freiherr von Kraft Foods, Inc. kraft paper kraft process kraft pulping Kraft, Adam Kraft, Nikolai Kraft, Nikolai Osipovich Krag, Jens Otto Kragujevac Kragujevac Crvena Zastava Plant Krahnholm Manufactory Krähnholm Manufactory Krai Krainka Kraishte Kraits Krajowa Rada Narodowa KRN Krak Krakatao winds Krakatau Krakatoa kraken Krakow Kraków Krakow Astronomical Observatory Kraków Astronomical Observatory Krakow Gates Kraków Gates			Kraevskii, Andrei Kraevskii, Andrei Aleksandrovich Krafft, Adam Krafft, Adam Krafft-Ebing Krafft-Ebing Krafft-Ebing, Richard von Krafft-Ebing, Richard von Krafft-Ebing, Richard, Baron von Krafft-Ebing, Richard, Freiherr von kraft kraft kraft Kraft (paper) Kraft (paper) Kraft Dinner Kraft durch Freude Kraft Foods Kraft Foods Federal Credit Union Kraft Foods International Kraft Foods North America Kraft Foods, Inc. Kraft Foods, Inc. Kraft General Foods International Kraft Jacobs Suchard Kraft Liner Board Kraft Nabisco Championship Kraft North America Commercial kraft paper kraft paper kraft process Kraft pulp Kraft pulp Kraft pulping Kraft von Hohenlohe Kraft von Hohenlohe Kraft, Adam Kraft, Adam Kraft, Anton Kraft, Kennedy & Lesser, Inc. Kraft, Nicolaus Kraft, Nikolai Kraft, Nikolai Osipovich Kraft, William Kraft-Wärme-Kopplung Kraftfahrer Vereinigung Deutscher Lehrer Kraftfahrer Vom Dienst Kraftfahrer Vom Standort Kraftfahrt-Bundesamt Kraftfahrzeug Krafto Krafto Krafto Kräftor Kräftor Kräftor Kräftor Kraftrad Kraftsman Playground and Park Equipment Kraftu Kraftu

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