Solubility of sodium oxalate in kraft black liquors below 100°C
Precipitation of sodium salts from kraft black liquor leads to scale formation in the evaporation plants of kraft pulp mills. Sodium oxalate scaling is most prevalent in mills pulping tropical hardwoods such as eucalyptus and acacia, but it has also been found in the scales in high solids lines afte...
Gespeichert in:
| Veröffentlicht in: | Canadian journal of chemical engineering 2023-02, Vol.101 (2), p.819-827 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 827 |
|---|---|
| container_issue | 2 |
| container_start_page | 819 |
| container_title | Canadian journal of chemical engineering |
| container_volume | 101 |
| creator | Khafhafera, Ahmed Naser Kung, Jo‐Wen Jasmine DeMartini, Nikolai |
| description | Precipitation of sodium salts from kraft black liquor leads to scale formation in the evaporation plants of kraft pulp mills. Sodium oxalate scaling is most prevalent in mills pulping tropical hardwoods such as eucalyptus and acacia, but it has also been found in the scales in high solids lines after the concentrators in mills pulping softwoods. There is very limited solubility data for sodium oxalate in black liquor, especially below 100°C. This study measures the solubility limit in four different black liquors from 14% to 47% dry solids between 50 and 90°C. The newly generated solubility data in black liquors enhance our understanding of sodium oxalate scale formation in low solids effects of the evaporation plant. An example of an application to a kraft pulp mill with sodium oxalate scaling in the seventh effect is given. |
| doi_str_mv | 10.1002/cjce.24424 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2760035231</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2760035231</sourcerecordid><originalsourceid>FETCH-LOGICAL-c2314-6c43927813533c569f630a6c3e335eb90d67f7e407b418d729cb92bec3231f1d3</originalsourceid><addsrcrecordid>eNp9kM1KAzEUhYMoWKsbnyDgTph68zMzzU4Z6h8FFyq4C0kmgWnTpk1mqH0rn8Enc-q4dnW58J1z4EPoksCEANAbszB2Qjmn_AiNiGAiAyI-jtEIAKYZB8ZP0VlKi_6lwMkI3b4G3-nGN-0eB4dTqJtuhcOn8qq1uFnjZVSuxdors8S-2XYhJqytDzvcD35_VefoxCmf7MXfHaP3-9lb9ZjNXx6eqrt5ZigjPCsMZ4KWU8JyxkxeCFcwUIVhlrHcagF1UbrScig1J9O6pMJoQbU1rI87UrMxuhp6NzFsO5tauQhdXPeTkpYFAMt7sKeuB8rEkFK0Tm5is1JxLwnIgyF5MCR_DfUwGeBd4-3-H1JWz9VsyPwAfGhmtA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2760035231</pqid></control><display><type>article</type><title>Solubility of sodium oxalate in kraft black liquors below 100°C</title><source>Access via Wiley Online Library</source><creator>Khafhafera, Ahmed Naser ; Kung, Jo‐Wen Jasmine ; DeMartini, Nikolai</creator><creatorcontrib>Khafhafera, Ahmed Naser ; Kung, Jo‐Wen Jasmine ; DeMartini, Nikolai</creatorcontrib><description>Precipitation of sodium salts from kraft black liquor leads to scale formation in the evaporation plants of kraft pulp mills. Sodium oxalate scaling is most prevalent in mills pulping tropical hardwoods such as eucalyptus and acacia, but it has also been found in the scales in high solids lines after the concentrators in mills pulping softwoods. There is very limited solubility data for sodium oxalate in black liquor, especially below 100°C. This study measures the solubility limit in four different black liquors from 14% to 47% dry solids between 50 and 90°C. The newly generated solubility data in black liquors enhance our understanding of sodium oxalate scale formation in low solids effects of the evaporation plant. An example of an application to a kraft pulp mill with sodium oxalate scaling in the seventh effect is given.</description><identifier>ISSN: 0008-4034</identifier><identifier>EISSN: 1939-019X</identifier><identifier>DOI: 10.1002/cjce.24424</identifier><language>eng</language><publisher>Hoboken, USA: John Wiley & Sons, Inc</publisher><subject>Black liquor ; black liquors ; Eucalyptus ; Evaporation ; Hardwoods ; Kraft pulp ; Mills ; Pulping ; Scale formation ; scaling ; sodium oxalate ; Sodium salts ; Softwoods ; Solubility</subject><ispartof>Canadian journal of chemical engineering, 2023-02, Vol.101 (2), p.819-827</ispartof><rights>2022 Canadian Society for Chemical Engineering.</rights><rights>2023 Canadian Society for Chemical Engineering</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2314-6c43927813533c569f630a6c3e335eb90d67f7e407b418d729cb92bec3231f1d3</citedby><cites>FETCH-LOGICAL-c2314-6c43927813533c569f630a6c3e335eb90d67f7e407b418d729cb92bec3231f1d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fcjce.24424$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fcjce.24424$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Khafhafera, Ahmed Naser</creatorcontrib><creatorcontrib>Kung, Jo‐Wen Jasmine</creatorcontrib><creatorcontrib>DeMartini, Nikolai</creatorcontrib><title>Solubility of sodium oxalate in kraft black liquors below 100°C</title><title>Canadian journal of chemical engineering</title><description>Precipitation of sodium salts from kraft black liquor leads to scale formation in the evaporation plants of kraft pulp mills. Sodium oxalate scaling is most prevalent in mills pulping tropical hardwoods such as eucalyptus and acacia, but it has also been found in the scales in high solids lines after the concentrators in mills pulping softwoods. There is very limited solubility data for sodium oxalate in black liquor, especially below 100°C. This study measures the solubility limit in four different black liquors from 14% to 47% dry solids between 50 and 90°C. The newly generated solubility data in black liquors enhance our understanding of sodium oxalate scale formation in low solids effects of the evaporation plant. An example of an application to a kraft pulp mill with sodium oxalate scaling in the seventh effect is given.</description><subject>Black liquor</subject><subject>black liquors</subject><subject>Eucalyptus</subject><subject>Evaporation</subject><subject>Hardwoods</subject><subject>Kraft pulp</subject><subject>Mills</subject><subject>Pulping</subject><subject>Scale formation</subject><subject>scaling</subject><subject>sodium oxalate</subject><subject>Sodium salts</subject><subject>Softwoods</subject><subject>Solubility</subject><issn>0008-4034</issn><issn>1939-019X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kM1KAzEUhYMoWKsbnyDgTph68zMzzU4Z6h8FFyq4C0kmgWnTpk1mqH0rn8Enc-q4dnW58J1z4EPoksCEANAbszB2Qjmn_AiNiGAiAyI-jtEIAKYZB8ZP0VlKi_6lwMkI3b4G3-nGN-0eB4dTqJtuhcOn8qq1uFnjZVSuxdors8S-2XYhJqytDzvcD35_VefoxCmf7MXfHaP3-9lb9ZjNXx6eqrt5ZigjPCsMZ4KWU8JyxkxeCFcwUIVhlrHcagF1UbrScig1J9O6pMJoQbU1rI87UrMxuhp6NzFsO5tauQhdXPeTkpYFAMt7sKeuB8rEkFK0Tm5is1JxLwnIgyF5MCR_DfUwGeBd4-3-H1JWz9VsyPwAfGhmtA</recordid><startdate>202302</startdate><enddate>202302</enddate><creator>Khafhafera, Ahmed Naser</creator><creator>Kung, Jo‐Wen Jasmine</creator><creator>DeMartini, Nikolai</creator><general>John Wiley & Sons, Inc</general><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>202302</creationdate><title>Solubility of sodium oxalate in kraft black liquors below 100°C</title><author>Khafhafera, Ahmed Naser ; Kung, Jo‐Wen Jasmine ; DeMartini, Nikolai</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2314-6c43927813533c569f630a6c3e335eb90d67f7e407b418d729cb92bec3231f1d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Black liquor</topic><topic>black liquors</topic><topic>Eucalyptus</topic><topic>Evaporation</topic><topic>Hardwoods</topic><topic>Kraft pulp</topic><topic>Mills</topic><topic>Pulping</topic><topic>Scale formation</topic><topic>scaling</topic><topic>sodium oxalate</topic><topic>Sodium salts</topic><topic>Softwoods</topic><topic>Solubility</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Khafhafera, Ahmed Naser</creatorcontrib><creatorcontrib>Kung, Jo‐Wen Jasmine</creatorcontrib><creatorcontrib>DeMartini, Nikolai</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Canadian journal of chemical engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Khafhafera, Ahmed Naser</au><au>Kung, Jo‐Wen Jasmine</au><au>DeMartini, Nikolai</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Solubility of sodium oxalate in kraft black liquors below 100°C</atitle><jtitle>Canadian journal of chemical engineering</jtitle><date>2023-02</date><risdate>2023</risdate><volume>101</volume><issue>2</issue><spage>819</spage><epage>827</epage><pages>819-827</pages><issn>0008-4034</issn><eissn>1939-019X</eissn><abstract>Precipitation of sodium salts from kraft black liquor leads to scale formation in the evaporation plants of kraft pulp mills. Sodium oxalate scaling is most prevalent in mills pulping tropical hardwoods such as eucalyptus and acacia, but it has also been found in the scales in high solids lines after the concentrators in mills pulping softwoods. There is very limited solubility data for sodium oxalate in black liquor, especially below 100°C. This study measures the solubility limit in four different black liquors from 14% to 47% dry solids between 50 and 90°C. The newly generated solubility data in black liquors enhance our understanding of sodium oxalate scale formation in low solids effects of the evaporation plant. An example of an application to a kraft pulp mill with sodium oxalate scaling in the seventh effect is given.</abstract><cop>Hoboken, USA</cop><pub>John Wiley & Sons, Inc</pub><doi>10.1002/cjce.24424</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0008-4034 |
| ispartof | Canadian journal of chemical engineering, 2023-02, Vol.101 (2), p.819-827 |
| issn | 0008-4034 1939-019X |
| language | eng |
| recordid | cdi_proquest_journals_2760035231 |
| source | Access via Wiley Online Library |
| subjects | Black liquor black liquors Eucalyptus Evaporation Hardwoods Kraft pulp Mills Pulping Scale formation scaling sodium oxalate Sodium salts Softwoods Solubility |
| title | Solubility of sodium oxalate in kraft black liquors below 100°C |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-27T07%3A38%3A26IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Solubility%20of%20sodium%20oxalate%20in%20kraft%20black%20liquors%20below%20100%C2%B0C&rft.jtitle=Canadian%20journal%20of%20chemical%20engineering&rft.au=Khafhafera,%20Ahmed%20Naser&rft.date=2023-02&rft.volume=101&rft.issue=2&rft.spage=819&rft.epage=827&rft.pages=819-827&rft.issn=0008-4034&rft.eissn=1939-019X&rft_id=info:doi/10.1002/cjce.24424&rft_dat=%3Cproquest_cross%3E2760035231%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2760035231&rft_id=info:pmid/&rfr_iscdi=true |