KONTROLLE DER GELÖSTEN FESTSTOFFE BEI DER ZELLSTOFFHERSTELLUNG
A single vessel digester system for digesting cellulosic fibrous material comprises a substantially upright vessel (221) having a top (220) and bottom (222) with a slurry of comminuted cellulosic material to be digested introduced adjacent the top (220), and pulp withdrawn adjacent the bottom (222);...
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creator | RYHAM, C CHASSE, FRED MARCOCCIA, S PHILLIPS, R RICHARDSEN, T LAAKSO, O PROUGH, ROBERT |
description | A single vessel digester system for digesting cellulosic fibrous material comprises a substantially upright vessel (221) having a top (220) and bottom (222) with a slurry of comminuted cellulosic material to be digested introduced adjacent the top (220), and pulp withdrawn adjacent the bottom (222); the vessel having a continuous cooking zone disposed at a first level of said digester (221), and including a first screen (225) for removing liquor from the cooking zone and a cooking circulation loop (230, 235, 238, 239) associated with said first screen (225) for circulating removed liquor to the interior of said digester (221) near the vicinity of said first screen (225); and an extraction screen (245) with extraction conduit (246) located at a second vertical level in said vessel (221), below said first level, and having means for adding dilution liquid (241; 242), having a lower dissolved organic material concentration than the liquor removed in said cooking circulation loop (230, 235, 238, 239), to said cooking circulation loop (230, 235, 238, 239), to reduce the concentration of DOM in the digester and thereby increase the strength of the pulp so-produced. |
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the vessel having a continuous cooking zone disposed at a first level of said digester (221), and including a first screen (225) for removing liquor from the cooking zone and a cooking circulation loop (230, 235, 238, 239) associated with said first screen (225) for circulating removed liquor to the interior of said digester (221) near the vicinity of said first screen (225); and an extraction screen (245) with extraction conduit (246) located at a second vertical level in said vessel (221), below said first level, and having means for adding dilution liquid (241; 242), having a lower dissolved organic material concentration than the liquor removed in said cooking circulation loop (230, 235, 238, 239), to said cooking circulation loop (230, 235, 238, 239), to reduce the concentration of DOM in the digester and thereby increase the strength of the pulp so-produced.</description><edition>7</edition><language>ger</language><subject>ACCESSORIES FOR PAPER-MAKING MACHINES ; APPARATUS THEREFOR ; CALENDERS ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; DERIVATIVES THEREOF ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PAPER-MAKING ; POLYSACCHARIDES ; PRODUCTION OF CELLULOSE ; PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS ; REGENERATION OF PULPING LIQUORS ; TEXTILES ; THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><creationdate>2004</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20040923&DB=EPODOC&CC=DE&NR=69432515T9$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20040923&DB=EPODOC&CC=DE&NR=69432515T9$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>RYHAM, C</creatorcontrib><creatorcontrib>CHASSE, FRED</creatorcontrib><creatorcontrib>MARCOCCIA, S</creatorcontrib><creatorcontrib>PHILLIPS, R</creatorcontrib><creatorcontrib>RICHARDSEN, T</creatorcontrib><creatorcontrib>LAAKSO, O</creatorcontrib><creatorcontrib>PROUGH, ROBERT</creatorcontrib><title>KONTROLLE DER GELÖSTEN FESTSTOFFE BEI DER ZELLSTOFFHERSTELLUNG</title><description>A single vessel digester system for digesting cellulosic fibrous material comprises a substantially upright vessel (221) having a top (220) and bottom (222) with a slurry of comminuted cellulosic material to be digested introduced adjacent the top (220), and pulp withdrawn adjacent the bottom (222); 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CHASSE, FRED ; MARCOCCIA, S ; PHILLIPS, R ; RICHARDSEN, T ; LAAKSO, O ; PROUGH, ROBERT</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE69432515TT93</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>ger</language><creationdate>2004</creationdate><topic>ACCESSORIES FOR PAPER-MAKING MACHINES</topic><topic>APPARATUS THEREFOR</topic><topic>CALENDERS</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>DERIVATIVES THEREOF</topic><topic>METALLURGY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PAPER-MAKING</topic><topic>POLYSACCHARIDES</topic><topic>PRODUCTION OF CELLULOSE</topic><topic>PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS</topic><topic>REGENERATION OF PULPING LIQUORS</topic><topic>TEXTILES</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>RYHAM, C</creatorcontrib><creatorcontrib>CHASSE, FRED</creatorcontrib><creatorcontrib>MARCOCCIA, S</creatorcontrib><creatorcontrib>PHILLIPS, R</creatorcontrib><creatorcontrib>RICHARDSEN, T</creatorcontrib><creatorcontrib>LAAKSO, O</creatorcontrib><creatorcontrib>PROUGH, ROBERT</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>RYHAM, C</au><au>CHASSE, FRED</au><au>MARCOCCIA, S</au><au>PHILLIPS, R</au><au>RICHARDSEN, T</au><au>LAAKSO, O</au><au>PROUGH, ROBERT</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>KONTROLLE DER GELÖSTEN FESTSTOFFE BEI DER ZELLSTOFFHERSTELLUNG</title><date>2004-09-23</date><risdate>2004</risdate><abstract>A single vessel digester system for digesting cellulosic fibrous material comprises a substantially upright vessel (221) having a top (220) and bottom (222) with a slurry of comminuted cellulosic material to be digested introduced adjacent the top (220), and pulp withdrawn adjacent the bottom (222); the vessel having a continuous cooking zone disposed at a first level of said digester (221), and including a first screen (225) for removing liquor from the cooking zone and a cooking circulation loop (230, 235, 238, 239) associated with said first screen (225) for circulating removed liquor to the interior of said digester (221) near the vicinity of said first screen (225); and an extraction screen (245) with extraction conduit (246) located at a second vertical level in said vessel (221), below said first level, and having means for adding dilution liquid (241; 242), having a lower dissolved organic material concentration than the liquor removed in said cooking circulation loop (230, 235, 238, 239), to said cooking circulation loop (230, 235, 238, 239), to reduce the concentration of DOM in the digester and thereby increase the strength of the pulp so-produced.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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subjects | ACCESSORIES FOR PAPER-MAKING MACHINES APPARATUS THEREFOR CALENDERS CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PAPER-MAKING POLYSACCHARIDES PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP |
title | KONTROLLE DER GELÖSTEN FESTSTOFFE BEI DER ZELLSTOFFHERSTELLUNG |
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