COLLOIDAL CERIC OXIDE
A process is provided for preparing colloidal dispersions of ceric dioxide in inert organic media which comprises (1) heating (a) ceric dioxide comprising ammonium nitrate or ammonium and nitrate ions in an amount within the range from about 3 to about 14% by weight of the ceric dioxide and a member...
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| creator | VINCENT J. CHARTE PETER S. GRADEFF FRED G. SCHREIBER JOHN F. DAVISON |
| description | A process is provided for preparing colloidal dispersions of ceric dioxide in inert organic media which comprises (1) heating (a) ceric dioxide comprising ammonium nitrate or ammonium and nitrate ions in an amount within the range from about 3 to about 14% by weight of the ceric dioxide and a member selected from the group consisting of water, methanol, acetic acid and mixtures thereof in an amount usually from about 10 to about 60 g per mole of CeO2, sufficient to effect reaction with (b) an organic acid having from about ten to about forty carbon atoms (c) an organic solvent selected from the group consisting of (i) aliphatic and aromatic hydrocarbons, such as petroleum spirits, benzene, toluene, chlorobenzene, chlorotoluene, etc. (ii) aliphatic and cycloaliphatic ethers, such as isopropyl ether or dicyclohexyl ether (iii) aliphatic and cycloaliphatic ketones, such as diisobutylketone or cyclohexanone at a temperature within the range from about 60 to about 200 DEG C. thereby effecting dispersion of the ceric dioxide; (2) removing water, methanol, acetic acid or mixtures thereof, and separating undissolved particles of solid material such as ammonium nitrate and undissolved cerium dioxide. Association complexes are also provided, composed of ceric dioxide and organic acid having from about ten to about forty carbon atoms in a molar ratio CeO2/organic acid of at least about 4:1. |
| format | Patent |
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DAVISON</creatorcontrib><description>A process is provided for preparing colloidal dispersions of ceric dioxide in inert organic media which comprises (1) heating (a) ceric dioxide comprising ammonium nitrate or ammonium and nitrate ions in an amount within the range from about 3 to about 14% by weight of the ceric dioxide and a member selected from the group consisting of water, methanol, acetic acid and mixtures thereof in an amount usually from about 10 to about 60 g per mole of CeO2, sufficient to effect reaction with (b) an organic acid having from about ten to about forty carbon atoms (c) an organic solvent selected from the group consisting of (i) aliphatic and aromatic hydrocarbons, such as petroleum spirits, benzene, toluene, chlorobenzene, chlorotoluene, etc. (ii) aliphatic and cycloaliphatic ethers, such as isopropyl ether or dicyclohexyl ether (iii) aliphatic and cycloaliphatic ketones, such as diisobutylketone or cyclohexanone at a temperature within the range from about 60 to about 200 DEG C. thereby effecting dispersion of the ceric dioxide; (2) removing water, methanol, acetic acid or mixtures thereof, and separating undissolved particles of solid material such as ammonium nitrate and undissolved cerium dioxide. Association complexes are also provided, composed of ceric dioxide and organic acid having from about ten to about forty carbon atoms in a molar ratio CeO2/organic acid of at least about 4:1.</description><edition>4</edition><language>eng</language><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS ; ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM ; ADHESIVES ; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; CHEMISTRY ; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS ; DYES ; INORGANIC CHEMISTRY ; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; ORGANIC CHEMISTRY ; PAINTS ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; POLISHES ; THEIR RELEVANT APPARATUS ; TRANSPORTING</subject><creationdate>1987</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=19870702&DB=EPODOC&CC=AU&NR=563201B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19870702&DB=EPODOC&CC=AU&NR=563201B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>VINCENT J. 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Association complexes are also provided, composed of ceric dioxide and organic acid having from about ten to about forty carbon atoms in a molar ratio CeO2/organic acid of at least about 4:1.</description><subject>ACYCLIC OR CARBOCYCLIC COMPOUNDS</subject><subject>ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM</subject><subject>ADHESIVES</subject><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</subject><subject>CHEMISTRY</subject><subject>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</subject><subject>DYES</subject><subject>INORGANIC CHEMISTRY</subject><subject>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</subject><subject>METALLURGY</subject><subject>MISCELLANEOUS APPLICATIONS OF MATERIALS</subject><subject>MISCELLANEOUS COMPOSITIONS</subject><subject>NATURAL RESINS</subject><subject>ORGANIC CHEMISTRY</subject><subject>PAINTS</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>POLISHES</subject><subject>THEIR RELEVANT APPARATUS</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1987</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBB19vfx8fd0cfRRcHYN8nRW8I_wdHHlYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxjqGmZsZGBoZOTkbGRCgBAE2hHmI</recordid><startdate>19870702</startdate><enddate>19870702</enddate><creator>VINCENT J. 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CHARTE</creatorcontrib><creatorcontrib>PETER S. GRADEFF</creatorcontrib><creatorcontrib>FRED G. SCHREIBER</creatorcontrib><creatorcontrib>JOHN F. DAVISON</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>VINCENT J. CHARTE</au><au>PETER S. GRADEFF</au><au>FRED G. SCHREIBER</au><au>JOHN F. DAVISON</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>COLLOIDAL CERIC OXIDE</title><date>1987-07-02</date><risdate>1987</risdate><abstract>A process is provided for preparing colloidal dispersions of ceric dioxide in inert organic media which comprises (1) heating (a) ceric dioxide comprising ammonium nitrate or ammonium and nitrate ions in an amount within the range from about 3 to about 14% by weight of the ceric dioxide and a member selected from the group consisting of water, methanol, acetic acid and mixtures thereof in an amount usually from about 10 to about 60 g per mole of CeO2, sufficient to effect reaction with (b) an organic acid having from about ten to about forty carbon atoms (c) an organic solvent selected from the group consisting of (i) aliphatic and aromatic hydrocarbons, such as petroleum spirits, benzene, toluene, chlorobenzene, chlorotoluene, etc. (ii) aliphatic and cycloaliphatic ethers, such as isopropyl ether or dicyclohexyl ether (iii) aliphatic and cycloaliphatic ketones, such as diisobutylketone or cyclohexanone at a temperature within the range from about 60 to about 200 DEG C. thereby effecting dispersion of the ceric dioxide; (2) removing water, methanol, acetic acid or mixtures thereof, and separating undissolved particles of solid material such as ammonium nitrate and undissolved cerium dioxide. Association complexes are also provided, composed of ceric dioxide and organic acid having from about ten to about forty carbon atoms in a molar ratio CeO2/organic acid of at least about 4:1.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM ADHESIVES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS DYES INORGANIC CHEMISTRY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY PAINTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES THEIR RELEVANT APPARATUS TRANSPORTING |
| title | COLLOIDAL CERIC OXIDE |
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