A METHOD FOR THE MECHANICAL ACTIVATION OF POWDERS BY MEANS OF BALLS
The present invention relates to a method for the mechanical activation by means of balls of metal, semi-metal and/or non-metal powders (metal oxides, semimetal oxides, carbides, carbon and polymers) comprising: a) Providing a resonant acoustic mixer with vertical, horizontal or combined action; b)...
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| creator | DOSSI, Stefano COLOMBO, Giovanni PARAVAN, Christian GALFETTI, Luciano MAGGI, Filippo |
| description | The present invention relates to a method for the mechanical activation by means of balls of metal, semi-metal and/or non-metal powders (metal oxides, semimetal oxides, carbides, carbon and polymers) comprising: a) Providing a resonant acoustic mixer with vertical, horizontal or combined action; b) Providing an activation vessel, where the inner volume of said vessel is between 8 and 160 ml, preferably between 8 and 80 ml; c) Selecting balls and loading them in said vessel until obtaining a value of AVSF (Apparent Volumetric Sphere Filling) between 10% and 90%, preferably between 40% and 70%; d) Loading the powder (s) in said vessel; e) Optionally, adding a process controller (PCA) in said vessel; f) Optionally, bringing said vessel to volume with one or more gases; g) Closing said vessel and bringing said mixer to an acceleration above 50 G, preferably between 70 and 100 G, for a total process time between 5 and 480 min, preferably between 10 and 90 minutes. |
| format | Patent |
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b) Providing an activation vessel, where the inner volume of said vessel is between 8 and 160 ml, preferably between 8 and 80 ml; c) Selecting balls and loading them in said vessel until obtaining a value of AVSF (Apparent Volumetric Sphere Filling) between 10% and 90%, preferably between 40% and 70%; d) Loading the powder (s) in said vessel; e) Optionally, adding a process controller (PCA) in said vessel; f) Optionally, bringing said vessel to volume with one or more gases; g) Closing said vessel and bringing said mixer to an acceleration above 50 G, preferably between 70 and 100 G, for a total process time between 5 and 480 min, preferably between 10 and 90 minutes.</description><language>eng ; fre ; ger</language><subject>CRUSHING, PULVERISING, OR DISINTEGRATING ; CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL ; MILLING GRAIN ; PERFORMING OPERATIONS ; PREPARATORY TREATMENT OF GRAIN FOR MILLING ; TRANSPORTING</subject><creationdate>2020</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=20200930&DB=EPODOC&CC=EP&NR=3713674A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200930&DB=EPODOC&CC=EP&NR=3713674A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DOSSI, Stefano</creatorcontrib><creatorcontrib>COLOMBO, Giovanni</creatorcontrib><creatorcontrib>PARAVAN, Christian</creatorcontrib><creatorcontrib>GALFETTI, Luciano</creatorcontrib><creatorcontrib>MAGGI, Filippo</creatorcontrib><title>A METHOD FOR THE MECHANICAL ACTIVATION OF POWDERS BY MEANS OF BALLS</title><description>The present invention relates to a method for the mechanical activation by means of balls of metal, semi-metal and/or non-metal powders (metal oxides, semimetal oxides, carbides, carbon and polymers) comprising: a) Providing a resonant acoustic mixer with vertical, horizontal or combined action; b) Providing an activation vessel, where the inner volume of said vessel is between 8 and 160 ml, preferably between 8 and 80 ml; c) Selecting balls and loading them in said vessel until obtaining a value of AVSF (Apparent Volumetric Sphere Filling) between 10% and 90%, preferably between 40% and 70%; d) Loading the powder (s) in said vessel; e) Optionally, adding a process controller (PCA) in said vessel; f) Optionally, bringing said vessel to volume with one or more gases; g) Closing said vessel and bringing said mixer to an acceleration above 50 G, preferably between 70 and 100 G, for a total process time between 5 and 480 min, preferably between 10 and 90 minutes.</description><subject>CRUSHING, PULVERISING, OR DISINTEGRATING</subject><subject>CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL</subject><subject>MILLING GRAIN</subject><subject>PERFORMING OPERATIONS</subject><subject>PREPARATORY TREATMENT OF GRAIN FOR MILLING</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHB2VPB1DfHwd1Fw8w9SCPFwBXKdPRz9PJ0dfRQcnUM8wxxDPP39FPzdFAL8w11cg4IVnCKBahz9gkFiTo4-PsE8DKxpiTnFqbxQmptBwc01xNlDN7UgPz61uCAxOTUvtSTeNcDY3NDYzNzE0dCYCCUAipIqfA</recordid><startdate>20200930</startdate><enddate>20200930</enddate><creator>DOSSI, Stefano</creator><creator>COLOMBO, Giovanni</creator><creator>PARAVAN, Christian</creator><creator>GALFETTI, Luciano</creator><creator>MAGGI, Filippo</creator><scope>EVB</scope></search><sort><creationdate>20200930</creationdate><title>A METHOD FOR THE MECHANICAL ACTIVATION OF POWDERS BY MEANS OF BALLS</title><author>DOSSI, Stefano ; COLOMBO, Giovanni ; PARAVAN, Christian ; GALFETTI, Luciano ; MAGGI, Filippo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP3713674A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2020</creationdate><topic>CRUSHING, PULVERISING, OR DISINTEGRATING</topic><topic>CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL</topic><topic>MILLING GRAIN</topic><topic>PERFORMING OPERATIONS</topic><topic>PREPARATORY TREATMENT OF GRAIN FOR MILLING</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>DOSSI, Stefano</creatorcontrib><creatorcontrib>COLOMBO, Giovanni</creatorcontrib><creatorcontrib>PARAVAN, Christian</creatorcontrib><creatorcontrib>GALFETTI, Luciano</creatorcontrib><creatorcontrib>MAGGI, Filippo</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DOSSI, Stefano</au><au>COLOMBO, Giovanni</au><au>PARAVAN, Christian</au><au>GALFETTI, Luciano</au><au>MAGGI, Filippo</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>A METHOD FOR THE MECHANICAL ACTIVATION OF POWDERS BY MEANS OF BALLS</title><date>2020-09-30</date><risdate>2020</risdate><abstract>The present invention relates to a method for the mechanical activation by means of balls of metal, semi-metal and/or non-metal powders (metal oxides, semimetal oxides, carbides, carbon and polymers) comprising: a) Providing a resonant acoustic mixer with vertical, horizontal or combined action; b) Providing an activation vessel, where the inner volume of said vessel is between 8 and 160 ml, preferably between 8 and 80 ml; c) Selecting balls and loading them in said vessel until obtaining a value of AVSF (Apparent Volumetric Sphere Filling) between 10% and 90%, preferably between 40% and 70%; d) Loading the powder (s) in said vessel; e) Optionally, adding a process controller (PCA) in said vessel; f) Optionally, bringing said vessel to volume with one or more gases; g) Closing said vessel and bringing said mixer to an acceleration above 50 G, preferably between 70 and 100 G, for a total process time between 5 and 480 min, preferably between 10 and 90 minutes.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CRUSHING, PULVERISING, OR DISINTEGRATING CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL MILLING GRAIN PERFORMING OPERATIONS PREPARATORY TREATMENT OF GRAIN FOR MILLING TRANSPORTING |
| title | A METHOD FOR THE MECHANICAL ACTIVATION OF POWDERS BY MEANS OF BALLS |
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