Process for producing coated TiO2 pigment using cooxidation to provide hydrous oxide coatings
The present invention provides a process for producing titanium dioxide (TiO2) pigment having a coating comprising silica and a second oxide selected from the group consisting of oxides of boron, phosphorus, magnesium, niobium, germanium, and mixtures thereof, comprising the steps of (a) reacting ti...
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| creator | RUSSELL BERTRUM DIEMER JR JOHN STEVEN GERGELY NARAYANAN SANKARA SUBRAMANIAN ALVIN ALLEN PRATIBHA LAXMAN GAI |
| description | The present invention provides a process for producing titanium dioxide (TiO2) pigment having a coating comprising silica and a second oxide selected from the group consisting of oxides of boron, phosphorus, magnesium, niobium, germanium, and mixtures thereof, comprising the steps of (a) reacting titanium tetrachloride (TiCl4) in the vapor phase with an aluminum compound and an oxygen-containing gas in a reactor at a temperature in the range of about 900 DEG C. to about 1600 DEG C. to provide a gaseous suspension comprising TiO2 particles, (b) contacting the gaseous suspension comprising the TiO2 particles with a silicon halide and an oxide precursor of boron, phosphorus, magnesium, niobium, germanium, and mixtures thereof, and (c) cooling the gaseous suspension to produce TiO2 pigment having a coating comprising silica and a second oxide. |
| format | Patent |
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ALVIN ALLEN ; PRATIBHA LAXMAN GAI</creatorcontrib><description>The present invention provides a process for producing titanium dioxide (TiO2) pigment having a coating comprising silica and a second oxide selected from the group consisting of oxides of boron, phosphorus, magnesium, niobium, germanium, and mixtures thereof, comprising the steps of (a) reacting titanium tetrachloride (TiCl4) in the vapor phase with an aluminum compound and an oxygen-containing gas in a reactor at a temperature in the range of about 900 DEG C. to about 1600 DEG C. to provide a gaseous suspension comprising TiO2 particles, (b) contacting the gaseous suspension comprising the TiO2 particles with a silicon halide and an oxide precursor of boron, phosphorus, magnesium, niobium, germanium, and mixtures thereof, and (c) cooling the gaseous suspension to produce TiO2 pigment having a coating comprising silica and a second oxide.</description><edition>6</edition><language>eng</language><subject>ADHESIVES ; CHEMISTRY ; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ; DYES ; INORGANIC CHEMISTRY ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; PAINTS ; POLISHES ; PREPARATION OF CARBON BLACK ; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES</subject><creationdate>2002</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=20020718&DB=EPODOC&CC=AU&NR=750442B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20020718&DB=EPODOC&CC=AU&NR=750442B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>RUSSELL BERTRUM DIEMER JR</creatorcontrib><creatorcontrib>JOHN STEVEN GERGELY</creatorcontrib><creatorcontrib>NARAYANAN SANKARA SUBRAMANIAN</creatorcontrib><creatorcontrib>ALVIN ALLEN</creatorcontrib><creatorcontrib>PRATIBHA LAXMAN GAI</creatorcontrib><title>Process for producing coated TiO2 pigment using cooxidation to provide hydrous oxide coatings</title><description>The present invention provides a process for producing titanium dioxide (TiO2) pigment having a coating comprising silica and a second oxide selected from the group consisting of oxides of boron, phosphorus, magnesium, niobium, germanium, and mixtures thereof, comprising the steps of (a) reacting titanium tetrachloride (TiCl4) in the vapor phase with an aluminum compound and an oxygen-containing gas in a reactor at a temperature in the range of about 900 DEG C. to about 1600 DEG C. to provide a gaseous suspension comprising TiO2 particles, (b) contacting the gaseous suspension comprising the TiO2 particles with a silicon halide and an oxide precursor of boron, phosphorus, magnesium, niobium, germanium, and mixtures thereof, and (c) cooling the gaseous suspension to produce TiO2 pigment having a coating comprising silica and a second oxide.</description><subject>ADHESIVES</subject><subject>CHEMISTRY</subject><subject>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</subject><subject>DYES</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>MISCELLANEOUS APPLICATIONS OF MATERIALS</subject><subject>MISCELLANEOUS COMPOSITIONS</subject><subject>NATURAL RESINS</subject><subject>PAINTS</subject><subject>POLISHES</subject><subject>PREPARATION OF CARBON BLACK</subject><subject>TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2002</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNi0EKwjAQAHPxIOof9gMFiRXPVhRveqhHKSHZtgs2G7KJ6O-16gM8zWFmpup6jmxRBFqOECK7bMl3YNkkdFDTSUOgbkCfIMvX8IOcScQeEo_LnRxC_3SRs8Ao8bO_Y5mrSWtugosfZwoO-3p3LDBwgxKMRY-p2V4262VZ6qrSqz-SF5sYPDc</recordid><startdate>20020718</startdate><enddate>20020718</enddate><creator>RUSSELL BERTRUM DIEMER JR</creator><creator>JOHN STEVEN GERGELY</creator><creator>NARAYANAN SANKARA SUBRAMANIAN</creator><creator>ALVIN ALLEN</creator><creator>PRATIBHA LAXMAN GAI</creator><scope>EVB</scope></search><sort><creationdate>20020718</creationdate><title>Process for producing coated TiO2 pigment using cooxidation to provide hydrous oxide coatings</title><author>RUSSELL BERTRUM DIEMER JR ; JOHN STEVEN GERGELY ; NARAYANAN SANKARA SUBRAMANIAN ; ALVIN ALLEN ; PRATIBHA LAXMAN GAI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_AU750442BB23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2002</creationdate><topic>ADHESIVES</topic><topic>CHEMISTRY</topic><topic>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</topic><topic>DYES</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>MISCELLANEOUS APPLICATIONS OF MATERIALS</topic><topic>MISCELLANEOUS COMPOSITIONS</topic><topic>NATURAL RESINS</topic><topic>PAINTS</topic><topic>POLISHES</topic><topic>PREPARATION OF CARBON BLACK</topic><topic>TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES</topic><toplevel>online_resources</toplevel><creatorcontrib>RUSSELL BERTRUM DIEMER JR</creatorcontrib><creatorcontrib>JOHN STEVEN GERGELY</creatorcontrib><creatorcontrib>NARAYANAN SANKARA SUBRAMANIAN</creatorcontrib><creatorcontrib>ALVIN ALLEN</creatorcontrib><creatorcontrib>PRATIBHA LAXMAN GAI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>RUSSELL BERTRUM DIEMER JR</au><au>JOHN STEVEN GERGELY</au><au>NARAYANAN SANKARA SUBRAMANIAN</au><au>ALVIN ALLEN</au><au>PRATIBHA LAXMAN GAI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process for producing coated TiO2 pigment using cooxidation to provide hydrous oxide coatings</title><date>2002-07-18</date><risdate>2002</risdate><abstract>The present invention provides a process for producing titanium dioxide (TiO2) pigment having a coating comprising silica and a second oxide selected from the group consisting of oxides of boron, phosphorus, magnesium, niobium, germanium, and mixtures thereof, comprising the steps of (a) reacting titanium tetrachloride (TiCl4) in the vapor phase with an aluminum compound and an oxygen-containing gas in a reactor at a temperature in the range of about 900 DEG C. to about 1600 DEG C. to provide a gaseous suspension comprising TiO2 particles, (b) contacting the gaseous suspension comprising the TiO2 particles with a silicon halide and an oxide precursor of boron, phosphorus, magnesium, niobium, germanium, and mixtures thereof, and (c) cooling the gaseous suspension to produce TiO2 pigment having a coating comprising silica and a second oxide.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F DYES INORGANIC CHEMISTRY METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES PREPARATION OF CARBON BLACK TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES |
| title | Process for producing coated TiO2 pigment using cooxidation to provide hydrous oxide coatings |
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