AN IMPROVED PROCESS FOR THE RECOVERY OF ZINC FROM ZINC-BEARING RAW MATERIALS
The present invention refers to an improved process for recovering zinc from primary and secondary raw materials, said process comprising a first leaching step wherein the ratio between the zinc weight contained in the raw material and the volume of the leaching solution is at least 20 kg zinc per m...
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| creator | PECHARROMAN MERCADO, EMILIO FRADES TAPIA, MARIA MEJIAS CORDERO, ANA BELEN SANGUILINDA SOLAN, SERGIO |
| description | The present invention refers to an improved process for recovering zinc from primary and secondary raw materials, said process comprising a first leaching step wherein the ratio between the zinc weight contained in the raw material and the volume of the leaching solution is at least 20 kg zinc per m3 of acid aqueous solution; a neutralization step; and a solvent extraction stage in the presence of organic extractant, wherein the temperature is maintained from 47 to 52ºC.
La présente invention concerne un procédé amélioré de récupération de zinc à partir de matières premières primaires et secondaires, ledit procédé comprenant une première étape de lixiviation dans laquelle le rapport entre le poids de zinc contenu dans la matière première et le volume de la solution de lixiviation est d'au moins 20 kg de zinc par m3 de solution aqueuse acide; une étape de neutralisation ; et une étape d'extraction de solvant en présence d'un agent d'extraction organique, la température étant maintenue de 47 à 52 °C. |
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La présente invention concerne un procédé amélioré de récupération de zinc à partir de matières premières primaires et secondaires, ledit procédé comprenant une première étape de lixiviation dans laquelle le rapport entre le poids de zinc contenu dans la matière première et le volume de la solution de lixiviation est d'au moins 20 kg de zinc par m3 de solution aqueuse acide; une étape de neutralisation ; et une étape d'extraction de solvant en présence d'un agent d'extraction organique, la température étant maintenue de 47 à 52 °C.</description><language>eng ; fre</language><subject>APPARATUS THEREFOR ; CHEMISTRY ; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; PRETREATMENT OF RAW MATERIALS ; PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS ; PRODUCTION AND REFINING OF METALS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2021</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=20210422&DB=EPODOC&CC=CA&NR=3154676A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210422&DB=EPODOC&CC=CA&NR=3154676A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>PECHARROMAN MERCADO, EMILIO</creatorcontrib><creatorcontrib>FRADES TAPIA, MARIA</creatorcontrib><creatorcontrib>MEJIAS CORDERO, ANA BELEN</creatorcontrib><creatorcontrib>SANGUILINDA SOLAN, SERGIO</creatorcontrib><title>AN IMPROVED PROCESS FOR THE RECOVERY OF ZINC FROM ZINC-BEARING RAW MATERIALS</title><description>The present invention refers to an improved process for recovering zinc from primary and secondary raw materials, said process comprising a first leaching step wherein the ratio between the zinc weight contained in the raw material and the volume of the leaching solution is at least 20 kg zinc per m3 of acid aqueous solution; a neutralization step; and a solvent extraction stage in the presence of organic extractant, wherein the temperature is maintained from 47 to 52ºC.
La présente invention concerne un procédé amélioré de récupération de zinc à partir de matières premières primaires et secondaires, ledit procédé comprenant une première étape de lixiviation dans laquelle le rapport entre le poids de zinc contenu dans la matière première et le volume de la solution de lixiviation est d'au moins 20 kg de zinc par m3 de solution aqueuse acide; une étape de neutralisation ; et une étape d'extraction de solvant en présence d'un agent d'extraction organique, la température étant maintenue de 47 à 52 °C.</description><subject>APPARATUS THEREFOR</subject><subject>CHEMISTRY</subject><subject>ELECTROLYTIC OR ELECTROPHORETIC PROCESSES</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>METALLURGY</subject><subject>PRETREATMENT OF RAW MATERIALS</subject><subject>PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS</subject><subject>PRODUCTION AND REFINING OF METALS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPBx9FPw9A0I8g9zdVEAUs6uwcEKbv5BCiEergpBrs5A8aBIBX83hShPP2cFtyB_XzBL18nVMcjTz10hyDFcwdcxxDXI09EnmIeBNS0xpziVF0pzMyi4uYY4e-imFuTHpxYXJCan5qWWxDs7GhuampiZmzkaGhOhBABHoi1G</recordid><startdate>20210422</startdate><enddate>20210422</enddate><creator>PECHARROMAN MERCADO, EMILIO</creator><creator>FRADES TAPIA, MARIA</creator><creator>MEJIAS CORDERO, ANA BELEN</creator><creator>SANGUILINDA SOLAN, SERGIO</creator><scope>EVB</scope></search><sort><creationdate>20210422</creationdate><title>AN IMPROVED PROCESS FOR THE RECOVERY OF ZINC FROM ZINC-BEARING RAW MATERIALS</title><author>PECHARROMAN MERCADO, EMILIO ; FRADES TAPIA, MARIA ; MEJIAS CORDERO, ANA BELEN ; SANGUILINDA SOLAN, SERGIO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CA3154676A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2021</creationdate><topic>APPARATUS THEREFOR</topic><topic>CHEMISTRY</topic><topic>ELECTROLYTIC OR ELECTROPHORETIC PROCESSES</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>METALLURGY</topic><topic>PRETREATMENT OF RAW MATERIALS</topic><topic>PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS</topic><topic>PRODUCTION AND REFINING OF METALS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>PECHARROMAN MERCADO, EMILIO</creatorcontrib><creatorcontrib>FRADES TAPIA, MARIA</creatorcontrib><creatorcontrib>MEJIAS CORDERO, ANA BELEN</creatorcontrib><creatorcontrib>SANGUILINDA SOLAN, SERGIO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>PECHARROMAN MERCADO, EMILIO</au><au>FRADES TAPIA, MARIA</au><au>MEJIAS CORDERO, ANA BELEN</au><au>SANGUILINDA SOLAN, SERGIO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>AN IMPROVED PROCESS FOR THE RECOVERY OF ZINC FROM ZINC-BEARING RAW MATERIALS</title><date>2021-04-22</date><risdate>2021</risdate><abstract>The present invention refers to an improved process for recovering zinc from primary and secondary raw materials, said process comprising a first leaching step wherein the ratio between the zinc weight contained in the raw material and the volume of the leaching solution is at least 20 kg zinc per m3 of acid aqueous solution; a neutralization step; and a solvent extraction stage in the presence of organic extractant, wherein the temperature is maintained from 47 to 52ºC.
La présente invention concerne un procédé amélioré de récupération de zinc à partir de matières premières primaires et secondaires, ledit procédé comprenant une première étape de lixiviation dans laquelle le rapport entre le poids de zinc contenu dans la matière première et le volume de la solution de lixiviation est d'au moins 20 kg de zinc par m3 de solution aqueuse acide; une étape de neutralisation ; et une étape d'extraction de solvant en présence d'un agent d'extraction organique, la température étant maintenue de 47 à 52 °C.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS THEREFOR CHEMISTRY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | AN IMPROVED PROCESS FOR THE RECOVERY OF ZINC FROM ZINC-BEARING RAW MATERIALS |
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