Iron oxide nanoparticle dispersions and fuel additives for soot combustion
Aqueous and substantially crystalline iron oxide nanoparticle dispersions and processes for making them are disclosed. The nanoparticle size and size distribution width are advantageous for use in a fuel additive for catalytic reduction of soot combustion in diesel particulate filters. Nanoparticles...
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| creator | Irving, Lyn Marie Hailstone, Richard Kenneth Difrancesco, Albert Gary Sandford, David Wallace |
| description | Aqueous and substantially crystalline iron oxide nanoparticle dispersions and processes for making them are disclosed. The nanoparticle size and size distribution width are advantageous for use in a fuel additive for catalytic reduction of soot combustion in diesel particulate filters. Nanoparticles of the aqueous colloid are transferred to a substantially non-polar liquid comprising a carboxylic acid and one or more low-polarity solvents. The transfer is achieved by mixing the aqueous and substantially non-polar materials, forming an emulsion, followed by a phase separation into a substantially metal-free remnant polar phase and a substantially non-polar organic colloid phase. A method for rapid and substantially complete transfer of non-agglomerated nanoparticles to the low polarity phase in the presence of an organic amine, and a rapid phase separation of the substantially non-polar colloid from a remnant aqueous phase, are provided. |
| format | Patent |
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The nanoparticle size and size distribution width are advantageous for use in a fuel additive for catalytic reduction of soot combustion in diesel particulate filters. Nanoparticles of the aqueous colloid are transferred to a substantially non-polar liquid comprising a carboxylic acid and one or more low-polarity solvents. The transfer is achieved by mixing the aqueous and substantially non-polar materials, forming an emulsion, followed by a phase separation into a substantially metal-free remnant polar phase and a substantially non-polar organic colloid phase. A method for rapid and substantially complete transfer of non-agglomerated nanoparticles to the low polarity phase in the presence of an organic amine, and a rapid phase separation of the substantially non-polar colloid from a remnant aqueous phase, are provided.</description><language>eng</language><subject>ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL ; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; CHEMISTRY ; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ; FIRELIGHTERS ; FUELS ; FUELS NOT OTHERWISE PROVIDED FOR ; INORGANIC CHEMISTRY ; LIQUEFIED PETROLEUM GAS ; LUBRICANTS ; METALLURGY ; NATURAL GAS ; PEAT ; PERFORMING OPERATIONS ; PETROLEUM, GAS OR COKE INDUSTRIES ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K ; TECHNICAL GASES CONTAINING CARBON MONOXIDE ; THEIR RELEVANT APPARATUS ; TRANSPORTING</subject><creationdate>2016</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=20161013&DB=EPODOC&CC=AU&NR=2013266152B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20161013&DB=EPODOC&CC=AU&NR=2013266152B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Irving, Lyn Marie</creatorcontrib><creatorcontrib>Hailstone, Richard Kenneth</creatorcontrib><creatorcontrib>Difrancesco, Albert Gary</creatorcontrib><creatorcontrib>Sandford, David Wallace</creatorcontrib><title>Iron oxide nanoparticle dispersions and fuel additives for soot combustion</title><description>Aqueous and substantially crystalline iron oxide nanoparticle dispersions and processes for making them are disclosed. 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A method for rapid and substantially complete transfer of non-agglomerated nanoparticles to the low polarity phase in the presence of an organic amine, and a rapid phase separation of the substantially non-polar colloid from a remnant aqueous phase, are provided.</description><subject>ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL</subject><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</subject><subject>CHEMISTRY</subject><subject>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</subject><subject>FIRELIGHTERS</subject><subject>FUELS</subject><subject>FUELS NOT OTHERWISE PROVIDED FOR</subject><subject>INORGANIC CHEMISTRY</subject><subject>LIQUEFIED PETROLEUM GAS</subject><subject>LUBRICANTS</subject><subject>METALLURGY</subject><subject>NATURAL GAS</subject><subject>PEAT</subject><subject>PERFORMING OPERATIONS</subject><subject>PETROLEUM, GAS OR COKE INDUSTRIES</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K</subject><subject>TECHNICAL GASES CONTAINING CARBON MONOXIDE</subject><subject>THEIR RELEVANT APPARATUS</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyrEKwjAQANAuDqL-ww2ugk2xuxVFnXUuZ3KBg3gXcqn4-Tr4AU5vefPmeikqoG8OBIKiGUtlnwgCW6ZirGKAEiBOlABD4MovMohawFQreH0-Jqvft2xmEZPR6ueiWZ-Ot8N5Q1lHsoyehOq4v7tt27m-b3duGFz3Z_sAoj428g</recordid><startdate>20161013</startdate><enddate>20161013</enddate><creator>Irving, Lyn Marie</creator><creator>Hailstone, Richard Kenneth</creator><creator>Difrancesco, Albert Gary</creator><creator>Sandford, David Wallace</creator><scope>EVB</scope></search><sort><creationdate>20161013</creationdate><title>Iron oxide nanoparticle dispersions and fuel additives for soot combustion</title><author>Irving, Lyn Marie ; Hailstone, Richard Kenneth ; Difrancesco, Albert Gary ; Sandford, David Wallace</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_AU2013266152BB23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2016</creationdate><topic>ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL</topic><topic>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</topic><topic>CHEMISTRY</topic><topic>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</topic><topic>FIRELIGHTERS</topic><topic>FUELS</topic><topic>FUELS NOT OTHERWISE PROVIDED FOR</topic><topic>INORGANIC CHEMISTRY</topic><topic>LIQUEFIED PETROLEUM GAS</topic><topic>LUBRICANTS</topic><topic>METALLURGY</topic><topic>NATURAL GAS</topic><topic>PEAT</topic><topic>PERFORMING OPERATIONS</topic><topic>PETROLEUM, GAS OR COKE INDUSTRIES</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K</topic><topic>TECHNICAL GASES CONTAINING CARBON MONOXIDE</topic><topic>THEIR RELEVANT APPARATUS</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>Irving, Lyn Marie</creatorcontrib><creatorcontrib>Hailstone, Richard Kenneth</creatorcontrib><creatorcontrib>Difrancesco, Albert Gary</creatorcontrib><creatorcontrib>Sandford, David Wallace</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Irving, Lyn Marie</au><au>Hailstone, Richard Kenneth</au><au>Difrancesco, Albert Gary</au><au>Sandford, David Wallace</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Iron oxide nanoparticle dispersions and fuel additives for soot combustion</title><date>2016-10-13</date><risdate>2016</risdate><abstract>Aqueous and substantially crystalline iron oxide nanoparticle dispersions and processes for making them are disclosed. 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| subjects | ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR INORGANIC CHEMISTRY LIQUEFIED PETROLEUM GAS LUBRICANTS METALLURGY NATURAL GAS PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Iron oxide nanoparticle dispersions and fuel additives for soot combustion |
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