Method for recycling silver from silver-containing aqueous solution
The invention discloses a method for recycling silver from silver-containing aqueous solution containing inorganic sulfur oxide. The method comprises the following steps: adjusting the pH of the silver-containing aqueous solution containing inorganic sulfur oxide to 7 or above; adding a reducing age...
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| creator | LIN DONGHE LIU YONGPING DENG CHENGHU ZHANG JIAN HUANG SHAOYONG HUANG WEI JIANG HEMING |
| description | The invention discloses a method for recycling silver from silver-containing aqueous solution containing inorganic sulfur oxide. The method comprises the following steps: adjusting the pH of the silver-containing aqueous solution containing inorganic sulfur oxide to 7 or above; adding a reducing agent in the silver-containing aqueous solution to adjust the oxidation reduction electric potential ofthe solution to -300mV or below to carry out reduction on silver in the solution; and then, adding inorganic polymer in the silver-containing aqueous solution to precipitate reduced flocculation andrecycle silver. The method can efficiently recycle silver with high recycling rate from silver-containing aqueous solution containing sodium sulfite and other inorganic sulfur oxide without complicated operation and has the advantages of high stability and low cost.
本发明公开了种从含有无机硫氧化物的含银水溶液中回收银的方法，包括所述方法将含有无机硫氧化物的含银水溶液的pH调节至7以上，向含银水溶液中添加还原剂调整溶液氧化还原电位于-300mV以下将溶液中的银还原，然后再向含银水溶液中添加无机聚合物使还原后的银絮凝沉淀，将银回收。本发明方法无须复杂的操作便能够以高回收率从含有亚硫 |
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本发明公开了种从含有无机硫氧化物的含银水溶液中回收银的方法，包括所述方法将含有无机硫氧化物的含银水溶液的pH调节至7以上，向含银水溶液中添加还原剂调整溶液氧化还原电位于-300mV以下将溶液中的银还原，然后再向含银水溶液中添加无机聚合物使还原后的银絮凝沉淀，将银回收。本发明方法无须复杂的操作便能够以高回收率从含有亚硫</description><language>chi ; eng</language><subject>CHEMISTRY ; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ; FERROUS OR NON-FERROUS ALLOYS ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; METALLURGY ; PRETREATMENT OF RAW MATERIALS ; PRODUCTION AND REFINING OF METALS ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2018</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=20180807&DB=EPODOC&CC=CN&NR=108374095A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180807&DB=EPODOC&CC=CN&NR=108374095A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LIN DONGHE</creatorcontrib><creatorcontrib>LIU YONGPING</creatorcontrib><creatorcontrib>DENG CHENGHU</creatorcontrib><creatorcontrib>ZHANG JIAN</creatorcontrib><creatorcontrib>HUANG SHAOYONG</creatorcontrib><creatorcontrib>HUANG WEI</creatorcontrib><creatorcontrib>JIANG HEMING</creatorcontrib><title>Method for recycling silver from silver-containing aqueous solution</title><description>The invention discloses a method for recycling silver from silver-containing aqueous solution containing inorganic sulfur oxide. The method comprises the following steps: adjusting the pH of the silver-containing aqueous solution containing inorganic sulfur oxide to 7 or above; adding a reducing agent in the silver-containing aqueous solution to adjust the oxidation reduction electric potential ofthe solution to -300mV or below to carry out reduction on silver in the solution; and then, adding inorganic polymer in the silver-containing aqueous solution to precipitate reduced flocculation andrecycle silver. The method can efficiently recycle silver with high recycling rate from silver-containing aqueous solution containing sodium sulfite and other inorganic sulfur oxide without complicated operation and has the advantages of high stability and low cost.
本发明公开了种从含有无机硫氧化物的含银水溶液中回收银的方法，包括所述方法将含有无机硫氧化物的含银水溶液的pH调节至7以上，向含银水溶液中添加还原剂调整溶液氧化还原电位于-300mV以下将溶液中的银还原，然后再向含银水溶液中添加无机聚合物使还原后的银絮凝沉淀，将银回收。本发明方法无须复杂的操作便能够以高回收率从含有亚硫</description><subject>CHEMISTRY</subject><subject>CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</subject><subject>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</subject><subject>METALLURGY</subject><subject>PRETREATMENT OF RAW MATERIALS</subject><subject>PRODUCTION AND REFINING OF METALS</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><subject>TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHD2TS3JyE9RSMsvUihKTa5MzsnMS1cozswpSy1SSCvKz4WydZPz80oSM_NAsomFpan5pcUKxfk5pSWZ-Xk8DKxpiTnFqbxQmptB0c01xNlDN7UgPz61uCAxOTUvtSTe2c_QwMLY3MTA0tTRmBg1AMZMMzE</recordid><startdate>20180807</startdate><enddate>20180807</enddate><creator>LIN DONGHE</creator><creator>LIU YONGPING</creator><creator>DENG CHENGHU</creator><creator>ZHANG JIAN</creator><creator>HUANG SHAOYONG</creator><creator>HUANG WEI</creator><creator>JIANG HEMING</creator><scope>EVB</scope></search><sort><creationdate>20180807</creationdate><title>Method for recycling silver from silver-containing aqueous solution</title><author>LIN DONGHE ; LIU YONGPING ; DENG CHENGHU ; ZHANG JIAN ; HUANG SHAOYONG ; HUANG WEI ; JIANG HEMING</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN108374095A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2018</creationdate><topic>CHEMISTRY</topic><topic>CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</topic><topic>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</topic><topic>METALLURGY</topic><topic>PRETREATMENT OF RAW MATERIALS</topic><topic>PRODUCTION AND REFINING OF METALS</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</topic><topic>TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>LIN DONGHE</creatorcontrib><creatorcontrib>LIU YONGPING</creatorcontrib><creatorcontrib>DENG CHENGHU</creatorcontrib><creatorcontrib>ZHANG JIAN</creatorcontrib><creatorcontrib>HUANG SHAOYONG</creatorcontrib><creatorcontrib>HUANG WEI</creatorcontrib><creatorcontrib>JIANG HEMING</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LIN DONGHE</au><au>LIU YONGPING</au><au>DENG CHENGHU</au><au>ZHANG JIAN</au><au>HUANG SHAOYONG</au><au>HUANG WEI</au><au>JIANG HEMING</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method for recycling silver from silver-containing aqueous solution</title><date>2018-08-07</date><risdate>2018</risdate><abstract>The invention discloses a method for recycling silver from silver-containing aqueous solution containing inorganic sulfur oxide. The method comprises the following steps: adjusting the pH of the silver-containing aqueous solution containing inorganic sulfur oxide to 7 or above; adding a reducing agent in the silver-containing aqueous solution to adjust the oxidation reduction electric potential ofthe solution to -300mV or below to carry out reduction on silver in the solution; and then, adding inorganic polymer in the silver-containing aqueous solution to precipitate reduced flocculation andrecycle silver. The method can efficiently recycle silver with high recycling rate from silver-containing aqueous solution containing sodium sulfite and other inorganic sulfur oxide without complicated operation and has the advantages of high stability and low cost.
本发明公开了种从含有无机硫氧化物的含银水溶液中回收银的方法，包括所述方法将含有无机硫氧化物的含银水溶液的pH调节至7以上，向含银水溶液中添加还原剂调整溶液氧化还原电位于-300mV以下将溶液中的银还原，然后再向含银水溶液中添加无机聚合物使还原后的银絮凝沉淀，将银回收。本发明方法无须复杂的操作便能够以高回收率从含有亚硫</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | Method for recycling silver from silver-containing aqueous solution |
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