Process and apparatus for the manufacture of carbon microballoons
This invention provides a stepped heating cycle for the pre-treatment of phenolic microballoons prior to carbonization thereof, wherein the heating cycle comprises the steps of sequentially: gradually elevating the temperature of the microballoons to a temperature in the range 100° C.-170° C.; holdi...
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| creator | BOOKER LAURIE A WALKER TERENCE B |
| description | This invention provides a stepped heating cycle for the pre-treatment of phenolic microballoons prior to carbonization thereof, wherein the heating cycle comprises the steps of sequentially: gradually elevating the temperature of the microballoons to a temperature in the range 100° C.-170° C.; holding the microballoons at the elevated temperature for 1-24 hours; and gradually cooling the microballoons. This invention also provides a heat-dissipation reactor ( 11, 21, 31 ) which comprises a walled reaction chamber having a bottom and no top, the reaction chamber being fitted with high thermal conductivity inserts. When used in accordance with this invention ( 61 ), the volume within the walls of the reaction chamber is charged with phenolic resin microballoons. In a preferred embodiment, the reaction chamber ( 11, 21 ) is subdivided into a plurality of subchambers by a vertical grid of aluminum plates ( 19, 29 ). In this embodiment, about half or more of the wall area of each subchamber comprises aluminum and a top edge ( 17 ) of the aluminum wall material communicates with atmosphere above the reaction chamber. |
| format | Patent |
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This invention also provides a heat-dissipation reactor ( 11, 21, 31 ) which comprises a walled reaction chamber having a bottom and no top, the reaction chamber being fitted with high thermal conductivity inserts. When used in accordance with this invention ( 61 ), the volume within the walls of the reaction chamber is charged with phenolic resin microballoons. In a preferred embodiment, the reaction chamber ( 11, 21 ) is subdivided into a plurality of subchambers by a vertical grid of aluminum plates ( 19, 29 ). In this embodiment, about half or more of the wall area of each subchamber comprises aluminum and a top edge ( 17 ) of the aluminum wall material communicates with atmosphere above the reaction chamber.</description><language>eng</language><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; CHEMISTRY ; COMPOUNDS THEREOF ; INORGANIC CHEMISTRY ; METALLURGY ; NON-METALLIC ELEMENTS ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; THEIR RELEVANT APPARATUS ; TRANSPORTING</subject><creationdate>2006</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=20060912&DB=EPODOC&CC=US&NR=7105141B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20060912&DB=EPODOC&CC=US&NR=7105141B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BOOKER LAURIE A</creatorcontrib><creatorcontrib>WALKER TERENCE B</creatorcontrib><title>Process and apparatus for the manufacture of carbon microballoons</title><description>This invention provides a stepped heating cycle for the pre-treatment of phenolic microballoons prior to carbonization thereof, wherein the heating cycle comprises the steps of sequentially: gradually elevating the temperature of the microballoons to a temperature in the range 100° C.-170° C.; holding the microballoons at the elevated temperature for 1-24 hours; and gradually cooling the microballoons. This invention also provides a heat-dissipation reactor ( 11, 21, 31 ) which comprises a walled reaction chamber having a bottom and no top, the reaction chamber being fitted with high thermal conductivity inserts. When used in accordance with this invention ( 61 ), the volume within the walls of the reaction chamber is charged with phenolic resin microballoons. In a preferred embodiment, the reaction chamber ( 11, 21 ) is subdivided into a plurality of subchambers by a vertical grid of aluminum plates ( 19, 29 ). In this embodiment, about half or more of the wall area of each subchamber comprises aluminum and a top edge ( 17 ) of the aluminum wall material communicates with atmosphere above the reaction chamber.</description><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</subject><subject>CHEMISTRY</subject><subject>COMPOUNDS THEREOF</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>NON-METALLIC ELEMENTS</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>THEIR RELEVANT APPARATUS</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2006</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyjsKAkEMANBpLES9Qy6w4PjBWhfFUlDrJRszKMwmQzJzfxsPYPWaNw_HmymxO6C8AEtBw9ockhrUN8OE0hJSbcagCQhtVIHpQ6Yj5qwqvgyzhNl59XMR4HJ-9NeOiw7sBYmF6_C8H-J6H3fxtNn-Ub6-ODGk</recordid><startdate>20060912</startdate><enddate>20060912</enddate><creator>BOOKER LAURIE A</creator><creator>WALKER TERENCE B</creator><scope>EVB</scope></search><sort><creationdate>20060912</creationdate><title>Process and apparatus for the manufacture of carbon microballoons</title><author>BOOKER LAURIE A ; WALKER TERENCE B</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US7105141B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2006</creationdate><topic>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</topic><topic>CHEMISTRY</topic><topic>COMPOUNDS THEREOF</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>NON-METALLIC ELEMENTS</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>THEIR RELEVANT APPARATUS</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>BOOKER LAURIE A</creatorcontrib><creatorcontrib>WALKER TERENCE B</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BOOKER LAURIE A</au><au>WALKER TERENCE B</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process and apparatus for the manufacture of carbon microballoons</title><date>2006-09-12</date><risdate>2006</risdate><abstract>This invention provides a stepped heating cycle for the pre-treatment of phenolic microballoons prior to carbonization thereof, wherein the heating cycle comprises the steps of sequentially: gradually elevating the temperature of the microballoons to a temperature in the range 100° C.-170° C.; holding the microballoons at the elevated temperature for 1-24 hours; and gradually cooling the microballoons. This invention also provides a heat-dissipation reactor ( 11, 21, 31 ) which comprises a walled reaction chamber having a bottom and no top, the reaction chamber being fitted with high thermal conductivity inserts. When used in accordance with this invention ( 61 ), the volume within the walls of the reaction chamber is charged with phenolic resin microballoons. In a preferred embodiment, the reaction chamber ( 11, 21 ) is subdivided into a plurality of subchambers by a vertical grid of aluminum plates ( 19, 29 ). In this embodiment, about half or more of the wall area of each subchamber comprises aluminum and a top edge ( 17 ) of the aluminum wall material communicates with atmosphere above the reaction chamber.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Process and apparatus for the manufacture of carbon microballoons |
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