PROCESS FOR PRODUCING TECHNICAL GRADE PHOSPHORIC ACID FROM SEWAGE SLUDGE ASH

PROCESS FOR PRODUCING TECHNICAL GRADE PHOSPHORIC ACID FROM SEWAGE SLUDGE ASH

The present invention refers to an improved process for recovering phosphoric acid from sewage sludge ash, said process comprising a leaching step; a transforming step for converting phosphate metallic salts into phosphoric acid; a solvent extraction of the phosphoric acid from the leached solution...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ÁLVAREZ CARREÑO, Carlos, FRADES TAPIA, María, PINEDO GONZÁLEZ, Mª Teresa, MEJÍAS CORDERO, Ana Belén
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator ÁLVAREZ CARREÑO, Carlos
FRADES TAPIA, María
PINEDO GONZÁLEZ, Mª Teresa
MEJÍAS CORDERO, Ana Belén
description The present invention refers to an improved process for recovering phosphoric acid from sewage sludge ash, said process comprising a leaching step; a transforming step for converting phosphate metallic salts into phosphoric acid; a solvent extraction of the phosphoric acid from the leached solution with an organic solvent; a washing step for removing sulfuric acid; and stripping of phosphoric acid to obtain an aqueous solution containing phosphoric acid.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_EP4263428B1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>EP4263428B1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_EP4263428B13</originalsourceid><addsrcrecordid>eNrjZPAJCPJ3dg0OVnDzD1IAsl1CnT393BVCXJ09_DydHX0U3IMcXVwVAjz8g4E4yNNZwdHZ00XBLcjfVyHYNdzR3VUh2CfUBUg5BnvwMLCmJeYUp_JCaW4GBTfXEGcP3dSC_PjU4oLE5NS81JJ41wATIzNjEyMLJ0NjIpQAAE6tLVY</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>PROCESS FOR PRODUCING TECHNICAL GRADE PHOSPHORIC ACID FROM SEWAGE SLUDGE ASH</title><source>esp@cenet</source><creator>ÁLVAREZ CARREÑO, Carlos ; FRADES TAPIA, María ; PINEDO GONZÁLEZ, Mª Teresa ; MEJÍAS CORDERO, Ana Belén</creator><creatorcontrib>ÁLVAREZ CARREÑO, Carlos ; FRADES TAPIA, María ; PINEDO GONZÁLEZ, Mª Teresa ; MEJÍAS CORDERO, Ana Belén</creatorcontrib><description>The present invention refers to an improved process for recovering phosphoric acid from sewage sludge ash, said process comprising a leaching step; a transforming step for converting phosphate metallic salts into phosphoric acid; a solvent extraction of the phosphoric acid from the leached solution with an organic solvent; a washing step for removing sulfuric acid; and stripping of phosphoric acid to obtain an aqueous solution containing phosphoric acid.</description><language>eng ; fre ; ger</language><subject>CHEMISTRY ; COMPOUNDS THEREOF ; INORGANIC CHEMISTRY ; METALLURGY ; NON-METALLIC ELEMENTS</subject><creationdate>2025</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&amp;date=20250122&amp;DB=EPODOC&amp;CC=EP&amp;NR=4263428B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20250122&amp;DB=EPODOC&amp;CC=EP&amp;NR=4263428B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ÁLVAREZ CARREÑO, Carlos</creatorcontrib><creatorcontrib>FRADES TAPIA, María</creatorcontrib><creatorcontrib>PINEDO GONZÁLEZ, Mª Teresa</creatorcontrib><creatorcontrib>MEJÍAS CORDERO, Ana Belén</creatorcontrib><title>PROCESS FOR PRODUCING TECHNICAL GRADE PHOSPHORIC ACID FROM SEWAGE SLUDGE ASH</title><description>The present invention refers to an improved process for recovering phosphoric acid from sewage sludge ash, said process comprising a leaching step; a transforming step for converting phosphate metallic salts into phosphoric acid; a solvent extraction of the phosphoric acid from the leached solution with an organic solvent; a washing step for removing sulfuric acid; and stripping of phosphoric acid to obtain an aqueous solution containing phosphoric acid.</description><subject>CHEMISTRY</subject><subject>COMPOUNDS THEREOF</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>NON-METALLIC ELEMENTS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2025</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPAJCPJ3dg0OVnDzD1IAsl1CnT393BVCXJ09_DydHX0U3IMcXVwVAjz8g4E4yNNZwdHZ00XBLcjfVyHYNdzR3VUh2CfUBUg5BnvwMLCmJeYUp_JCaW4GBTfXEGcP3dSC_PjU4oLE5NS81JJ41wATIzNjEyMLJ0NjIpQAAE6tLVY</recordid><startdate>20250122</startdate><enddate>20250122</enddate><creator>ÁLVAREZ CARREÑO, Carlos</creator><creator>FRADES TAPIA, María</creator><creator>PINEDO GONZÁLEZ, Mª Teresa</creator><creator>MEJÍAS CORDERO, Ana Belén</creator><scope>EVB</scope></search><sort><creationdate>20250122</creationdate><title>PROCESS FOR PRODUCING TECHNICAL GRADE PHOSPHORIC ACID FROM SEWAGE SLUDGE ASH</title><author>ÁLVAREZ CARREÑO, Carlos ; FRADES TAPIA, María ; PINEDO GONZÁLEZ, Mª Teresa ; MEJÍAS CORDERO, Ana Belén</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP4263428B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2025</creationdate><topic>CHEMISTRY</topic><topic>COMPOUNDS THEREOF</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>NON-METALLIC ELEMENTS</topic><toplevel>online_resources</toplevel><creatorcontrib>ÁLVAREZ CARREÑO, Carlos</creatorcontrib><creatorcontrib>FRADES TAPIA, María</creatorcontrib><creatorcontrib>PINEDO GONZÁLEZ, Mª Teresa</creatorcontrib><creatorcontrib>MEJÍAS CORDERO, Ana Belén</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ÁLVAREZ CARREÑO, Carlos</au><au>FRADES TAPIA, María</au><au>PINEDO GONZÁLEZ, Mª Teresa</au><au>MEJÍAS CORDERO, Ana Belén</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PROCESS FOR PRODUCING TECHNICAL GRADE PHOSPHORIC ACID FROM SEWAGE SLUDGE ASH</title><date>2025-01-22</date><risdate>2025</risdate><abstract>The present invention refers to an improved process for recovering phosphoric acid from sewage sludge ash, said process comprising a leaching step; a transforming step for converting phosphate metallic salts into phosphoric acid; a solvent extraction of the phosphoric acid from the leached solution with an organic solvent; a washing step for removing sulfuric acid; and stripping of phosphoric acid to obtain an aqueous solution containing phosphoric acid.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng ; fre ; ger
recordid cdi_epo_espacenet_EP4263428B1
source esp@cenet
subjects CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
title PROCESS FOR PRODUCING TECHNICAL GRADE PHOSPHORIC ACID FROM SEWAGE SLUDGE ASH
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-13T05%3A53%3A35IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=%C3%81LVAREZ%20CARRE%C3%91O,%20Carlos&rft.date=2025-01-22&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EEP4263428B1%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true