DEMETALLIZZAZIONE ECOCOMPATIBILE DI OGGETTI PLASTICI CROMATI ED ESTENSIONE A SUBSTRATI METALLICI PASSIVABILI
Chemical stripping is realised on chromium plated polymeric (ABS, for instance) or passivatable metallic (e.g. Al,Ti) substrates. The components of the plating are copper, nickel and chromium. Stripping is performed with an inorganic acid (preferably sulphuric) and hydrogen peroxide composition, and...
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| creator | MENEGHETTI MORENO BOYE BIRAME FARNIA GIUSEPPE SANDONA' GIANCARLO |
| description | Chemical stripping is realised on chromium plated polymeric (ABS, for instance) or passivatable metallic (e.g. Al,Ti) substrates. The components of the plating are copper, nickel and chromium. Stripping is performed with an inorganic acid (preferably sulphuric) and hydrogen peroxide composition, and involves the oxidation and dissolution of copper and nickel, but not of chromium. Chromium is recovered as fine little metallic sheets whereas copper and nickel are recovered from the solution by chemical and/or electrochemical methods. The invention allows the complete reutilization of polymeric and metallic substrates, as required by actual laws, and the recovery of the plating components, avoiding the contamination of the environment. |
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The components of the plating are copper, nickel and chromium. Stripping is performed with an inorganic acid (preferably sulphuric) and hydrogen peroxide composition, and involves the oxidation and dissolution of copper and nickel, but not of chromium. Chromium is recovered as fine little metallic sheets whereas copper and nickel are recovered from the solution by chemical and/or electrochemical methods. The invention allows the complete reutilization of polymeric and metallic substrates, as required by actual laws, and the recovery of the plating components, avoiding the contamination of the environment.</description><language>ita</language><subject>CHEMICAL SURFACE TREATMENT ; CHEMISTRY ; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS ; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL ; COATING MATERIAL WITH METALLIC MATERIAL ; COATING METALLIC MATERIAL ; DIFFUSION TREATMENT OF METALLIC MATERIAL ; FERROUS OR NON-FERROUS ALLOYS ; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL ; METALLURGY ; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 ; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE ; PRETREATMENT OF RAW MATERIALS ; PRODUCTION AND REFINING OF METALS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2004</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=20040727&DB=EPODOC&CC=IT&NR=PD20040106A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25544,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20040727&DB=EPODOC&CC=IT&NR=PD20040106A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MENEGHETTI MORENO</creatorcontrib><creatorcontrib>BOYE BIRAME</creatorcontrib><creatorcontrib>FARNIA GIUSEPPE</creatorcontrib><creatorcontrib>SANDONA' GIANCARLO</creatorcontrib><title>DEMETALLIZZAZIONE ECOCOMPATIBILE DI OGGETTI PLASTICI CROMATI ED ESTENSIONE A SUBSTRATI METALLICI PASSIVABILI</title><description>Chemical stripping is realised on chromium plated polymeric (ABS, for instance) or passivatable metallic (e.g. Al,Ti) substrates. The components of the plating are copper, nickel and chromium. Stripping is performed with an inorganic acid (preferably sulphuric) and hydrogen peroxide composition, and involves the oxidation and dissolution of copper and nickel, but not of chromium. Chromium is recovered as fine little metallic sheets whereas copper and nickel are recovered from the solution by chemical and/or electrochemical methods. The invention allows the complete reutilization of polymeric and metallic substrates, as required by actual laws, and the recovery of the plating components, avoiding the contamination of the environment.</description><subject>CHEMICAL SURFACE TREATMENT</subject><subject>CHEMISTRY</subject><subject>CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS</subject><subject>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</subject><subject>COATING MATERIAL WITH METALLIC MATERIAL</subject><subject>COATING METALLIC MATERIAL</subject><subject>DIFFUSION TREATMENT OF METALLIC MATERIAL</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</subject><subject>METALLURGY</subject><subject>MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25</subject><subject>NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE</subject><subject>PRETREATMENT OF RAW MATERIALS</subject><subject>PRODUCTION AND REFINING OF METALS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2004</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjLEKwjAURbs4iPoPD5yFVMX9NXnWB2kTmqdDllIkTkUL9f-xSj_A6Q7n3LPMekMVCVrLMWJkVxOQdtpVHoULtgSGwZUliTB4i0FYM-jGVRMHMkBBqA6_I0K4FkGaL5mjk-sxBL7h1OJ1tnh0_Zg2866y7ZlEX3ZpeLVpHLp7eqZ3y-LNXqmjytUJ88N_1gccQTg5</recordid><startdate>20040727</startdate><enddate>20040727</enddate><creator>MENEGHETTI MORENO</creator><creator>BOYE BIRAME</creator><creator>FARNIA GIUSEPPE</creator><creator>SANDONA' GIANCARLO</creator><scope>EVB</scope></search><sort><creationdate>20040727</creationdate><title>DEMETALLIZZAZIONE ECOCOMPATIBILE DI OGGETTI PLASTICI CROMATI ED ESTENSIONE A SUBSTRATI METALLICI PASSIVABILI</title><author>MENEGHETTI MORENO ; BOYE BIRAME ; FARNIA GIUSEPPE ; SANDONA' GIANCARLO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_ITPD20040106A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>ita</language><creationdate>2004</creationdate><topic>CHEMICAL SURFACE TREATMENT</topic><topic>CHEMISTRY</topic><topic>CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS</topic><topic>COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL</topic><topic>COATING MATERIAL WITH METALLIC MATERIAL</topic><topic>COATING METALLIC MATERIAL</topic><topic>DIFFUSION TREATMENT OF METALLIC MATERIAL</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL</topic><topic>METALLURGY</topic><topic>MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25</topic><topic>NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE</topic><topic>PRETREATMENT OF RAW MATERIALS</topic><topic>PRODUCTION AND REFINING OF METALS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>MENEGHETTI MORENO</creatorcontrib><creatorcontrib>BOYE BIRAME</creatorcontrib><creatorcontrib>FARNIA GIUSEPPE</creatorcontrib><creatorcontrib>SANDONA' GIANCARLO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MENEGHETTI MORENO</au><au>BOYE BIRAME</au><au>FARNIA GIUSEPPE</au><au>SANDONA' GIANCARLO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DEMETALLIZZAZIONE ECOCOMPATIBILE DI OGGETTI PLASTICI CROMATI ED ESTENSIONE A SUBSTRATI METALLICI PASSIVABILI</title><date>2004-07-27</date><risdate>2004</risdate><abstract>Chemical stripping is realised on chromium plated polymeric (ABS, for instance) or passivatable metallic (e.g. Al,Ti) substrates. The components of the plating are copper, nickel and chromium. Stripping is performed with an inorganic acid (preferably sulphuric) and hydrogen peroxide composition, and involves the oxidation and dissolution of copper and nickel, but not of chromium. Chromium is recovered as fine little metallic sheets whereas copper and nickel are recovered from the solution by chemical and/or electrochemical methods. The invention allows the complete reutilization of polymeric and metallic substrates, as required by actual laws, and the recovery of the plating components, avoiding the contamination of the environment.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL FERROUS OR NON-FERROUS ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | DEMETALLIZZAZIONE ECOCOMPATIBILE DI OGGETTI PLASTICI CROMATI ED ESTENSIONE A SUBSTRATI METALLICI PASSIVABILI |
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