METHOD AND CHEMICAL COMPOSITIONS TO IMPROVE EFFICIENCY OF CHEMICAL PULPING
The invention provides methods and compositions for enhancing the digestion of pulp in a chemical pulping process. The method uses ultra-low, economically feasible dosages of BH applied right before the pulping process begins, in a stable alkaline solution fed into white liquor line, to improve the...
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| creator | SHEVCHENKO, SERGEY M DUGGIRALA, PRASAD Y |
| description | The invention provides methods and compositions for enhancing the digestion of pulp in a chemical pulping process. The method uses ultra-low, economically feasible dosages of BH applied right before the pulping process begins, in a stable alkaline solution fed into white liquor line, to improve the process by saving pulping chemicals, increasing pulp brightness and yield and reducing the kappa number.
La présente invention concerne des procédés et des compositions permettant d'améliorer la digestion de pâte lors d'un processus de réduction en pâte chimique. Le procédé fait appel à des doses ultra-faibles, économiquement faisables, de BH appliquées juste avant le début du processus de réduction en pâte, dans une solution alcaline stable introduite dans un conduit de liqueur blanche, pour améliorer le processus par économie de produits chimiques de réduction en pâte, augmentation de la brillance et du rendement de la pâte et réduction de l'indice kappa. |
| format | Patent |
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La présente invention concerne des procédés et des compositions permettant d'améliorer la digestion de pâte lors d'un processus de réduction en pâte chimique. Le procédé fait appel à des doses ultra-faibles, économiquement faisables, de BH appliquées juste avant le début du processus de réduction en pâte, dans une solution alcaline stable introduite dans un conduit de liqueur blanche, pour améliorer le processus par économie de produits chimiques de réduction en pâte, augmentation de la brillance et du rendement de la pâte et réduction de l'indice kappa.</description><language>eng ; fre</language><subject>APPARATUS THEREFOR ; IMPREGNATING OR COATING OF PAPER ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D ; PRODUCTION OF CELLULOSE ; PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS ; PULP COMPOSITIONS ; REGENERATION OF PULPING LIQUORS ; TEXTILES ; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</subject><creationdate>2022</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=20220614&DB=EPODOC&CC=CA&NR=2953568C$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220614&DB=EPODOC&CC=CA&NR=2953568C$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SHEVCHENKO, SERGEY M</creatorcontrib><creatorcontrib>DUGGIRALA, PRASAD Y</creatorcontrib><title>METHOD AND CHEMICAL COMPOSITIONS TO IMPROVE EFFICIENCY OF CHEMICAL PULPING</title><description>The invention provides methods and compositions for enhancing the digestion of pulp in a chemical pulping process. The method uses ultra-low, economically feasible dosages of BH applied right before the pulping process begins, in a stable alkaline solution fed into white liquor line, to improve the process by saving pulping chemicals, increasing pulp brightness and yield and reducing the kappa number.
La présente invention concerne des procédés et des compositions permettant d'améliorer la digestion de pâte lors d'un processus de réduction en pâte chimique. Le procédé fait appel à des doses ultra-faibles, économiquement faisables, de BH appliquées juste avant le début du processus de réduction en pâte, dans une solution alcaline stable introduite dans un conduit de liqueur blanche, pour améliorer le processus par économie de produits chimiques de réduction en pâte, augmentation de la brillance et du rendement de la pâte et réduction de l'indice kappa.</description><subject>APPARATUS THEREFOR</subject><subject>IMPREGNATING OR COATING OF PAPER</subject><subject>PAPER NOT OTHERWISE PROVIDED FOR</subject><subject>PAPER-MAKING</subject><subject>PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D</subject><subject>PRODUCTION OF CELLULOSE</subject><subject>PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS</subject><subject>PULP COMPOSITIONS</subject><subject>REGENERATION OF PULPING LIQUORS</subject><subject>TEXTILES</subject><subject>TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPDydQ3x8HdRcPRzUXD2cPX1dHb0UXD29w3wD_YM8fT3C1YI8Vfw9A0I8g9zVXB1c_N09nT1c45U8HdDKA8I9Qnw9HPnYWBNS8wpTuWF0twM8m6uIc4euqkF-fGpxQWJyal5qSXxzo5GlqbGpmYWzsaEVQAAoIYseA</recordid><startdate>20220614</startdate><enddate>20220614</enddate><creator>SHEVCHENKO, SERGEY M</creator><creator>DUGGIRALA, PRASAD Y</creator><scope>EVB</scope></search><sort><creationdate>20220614</creationdate><title>METHOD AND CHEMICAL COMPOSITIONS TO IMPROVE EFFICIENCY OF CHEMICAL PULPING</title><author>SHEVCHENKO, SERGEY M ; DUGGIRALA, PRASAD Y</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CA2953568C3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2022</creationdate><topic>APPARATUS THEREFOR</topic><topic>IMPREGNATING OR COATING OF PAPER</topic><topic>PAPER NOT OTHERWISE PROVIDED FOR</topic><topic>PAPER-MAKING</topic><topic>PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D</topic><topic>PRODUCTION OF CELLULOSE</topic><topic>PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS</topic><topic>PULP COMPOSITIONS</topic><topic>REGENERATION OF PULPING LIQUORS</topic><topic>TEXTILES</topic><topic>TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</topic><toplevel>online_resources</toplevel><creatorcontrib>SHEVCHENKO, SERGEY M</creatorcontrib><creatorcontrib>DUGGIRALA, PRASAD Y</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SHEVCHENKO, SERGEY M</au><au>DUGGIRALA, PRASAD Y</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD AND CHEMICAL COMPOSITIONS TO IMPROVE EFFICIENCY OF CHEMICAL PULPING</title><date>2022-06-14</date><risdate>2022</risdate><abstract>The invention provides methods and compositions for enhancing the digestion of pulp in a chemical pulping process. The method uses ultra-low, economically feasible dosages of BH applied right before the pulping process begins, in a stable alkaline solution fed into white liquor line, to improve the process by saving pulping chemicals, increasing pulp brightness and yield and reducing the kappa number.
La présente invention concerne des procédés et des compositions permettant d'améliorer la digestion de pâte lors d'un processus de réduction en pâte chimique. Le procédé fait appel à des doses ultra-faibles, économiquement faisables, de BH appliquées juste avant le début du processus de réduction en pâte, dans une solution alcaline stable introduite dans un conduit de liqueur blanche, pour améliorer le processus par économie de produits chimiques de réduction en pâte, augmentation de la brillance et du rendement de la pâte et réduction de l'indice kappa.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS THEREFOR IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS PULP COMPOSITIONS REGENERATION OF PULPING LIQUORS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G |
| title | METHOD AND CHEMICAL COMPOSITIONS TO IMPROVE EFFICIENCY OF CHEMICAL PULPING |
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