STABILIZATION OF THE VISCOSITY OF FORMAMIDINE SULFINIC ACID BLEACHED CALCIUM CARBONATE SLURRIES
Bleaching a particulate calcium carbonate aqueous slurry with a reductive bleaching agent such as formamidine sulfinic acid increases the viscosity of the slurry. Combining the slurry with a metal material such as strontium hydroxide reduces any increase in viscosity of the bleached calcium carbonat...
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| creator | GOLLEY, CHRISTOPHER, R., L |
| description | Bleaching a particulate calcium carbonate aqueous slurry with a reductive bleaching agent such as formamidine sulfinic acid increases the viscosity of the slurry. Combining the slurry with a metal material such as strontium hydroxide reduces any increase in viscosity of the bleached calcium carbonate slurry. Addition of the reductive bleaching agent and/or the metal material takes place prior to, during or after the manufacture of the slurry or the bleaching step. Metal materials in one embodiment include those that form substantially water insoluble precipitates of the reductive bleaching reaction products.
Sachant que la décoloration de suspension aqueuse de carbonate de calcium particulaire au moyen d'un agent décolorant réducteur du type acide sulfinique de formamidine a pour effet d'augmenter la viscosité de la suspension, le fait de combiner cette suspension avec un matériau métallique du type hydroxyde de strontium permet d'amenuiser toute augmentation de la viscosité de la suspension de carbonate de calcium décolorée. L'adjonction d'agent décolorant réducteur et/ou de matériau métallique intervient avant, pendant ou après la fabrication de la suspension ou la décoloration. Selon une variante, le matériau métallique s'entend d'un matériau générateur de précipités sensiblement non hydrosolubles des produits de réaction décolorants réducteurs. |
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Sachant que la décoloration de suspension aqueuse de carbonate de calcium particulaire au moyen d'un agent décolorant réducteur du type acide sulfinique de formamidine a pour effet d'augmenter la viscosité de la suspension, le fait de combiner cette suspension avec un matériau métallique du type hydroxyde de strontium permet d'amenuiser toute augmentation de la viscosité de la suspension de carbonate de calcium décolorée. L'adjonction d'agent décolorant réducteur et/ou de matériau métallique intervient avant, pendant ou après la fabrication de la suspension ou la décoloration. Selon une variante, le matériau métallique s'entend d'un matériau générateur de précipités sensiblement non hydrosolubles des produits de réaction décolorants réducteurs.</description><edition>7</edition><language>eng ; fre</language><subject>ADHESIVES ; CHEMISTRY ; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS ; DYES ; INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS ; 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>2003</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=20031106&DB=EPODOC&CC=WO&NR=03091156A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20031106&DB=EPODOC&CC=WO&NR=03091156A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GOLLEY, CHRISTOPHER, R., L</creatorcontrib><title>STABILIZATION OF THE VISCOSITY OF FORMAMIDINE SULFINIC ACID BLEACHED CALCIUM CARBONATE SLURRIES</title><description>Bleaching a particulate calcium carbonate aqueous slurry with a reductive bleaching agent such as formamidine sulfinic acid increases the viscosity of the slurry. Combining the slurry with a metal material such as strontium hydroxide reduces any increase in viscosity of the bleached calcium carbonate slurry. Addition of the reductive bleaching agent and/or the metal material takes place prior to, during or after the manufacture of the slurry or the bleaching step. Metal materials in one embodiment include those that form substantially water insoluble precipitates of the reductive bleaching reaction products.
Sachant que la décoloration de suspension aqueuse de carbonate de calcium particulaire au moyen d'un agent décolorant réducteur du type acide sulfinique de formamidine a pour effet d'augmenter la viscosité de la suspension, le fait de combiner cette suspension avec un matériau métallique du type hydroxyde de strontium permet d'amenuiser toute augmentation de la viscosité de la suspension de carbonate de calcium décolorée. L'adjonction d'agent décolorant réducteur et/ou de matériau métallique intervient avant, pendant ou après la fabrication de la suspension ou la décoloration. Selon une variante, le matériau métallique s'entend d'un matériau générateur de précipités sensiblement non hydrosolubles des produits de réaction décolorants réducteurs.</description><subject>ADHESIVES</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>INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS</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>2003</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNykEKwjAQQNFuXIh6h_EAQktRcDmZJGQgTSBJFd2EInElWqj3xwoewNWDz19WOSYUbPmKib0DryEZBSeO5COnyzdoHzrsWLJTEHur2TEBEksQViEZJYHQEvfdbBDeYZpH24fAKq6rxX14TGXzc1VttUpkdmV85TKNw608yzuffd3Wx6bZH7Bp_3k-VU0zQA</recordid><startdate>20031106</startdate><enddate>20031106</enddate><creator>GOLLEY, CHRISTOPHER, R., L</creator><scope>EVB</scope></search><sort><creationdate>20031106</creationdate><title>STABILIZATION OF THE VISCOSITY OF FORMAMIDINE SULFINIC ACID BLEACHED CALCIUM CARBONATE SLURRIES</title><author>GOLLEY, CHRISTOPHER, R., L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO03091156A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2003</creationdate><topic>ADHESIVES</topic><topic>CHEMISTRY</topic><topic>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</topic><topic>DYES</topic><topic>INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS</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>GOLLEY, CHRISTOPHER, R., L</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GOLLEY, CHRISTOPHER, R., L</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>STABILIZATION OF THE VISCOSITY OF FORMAMIDINE SULFINIC ACID BLEACHED CALCIUM CARBONATE SLURRIES</title><date>2003-11-06</date><risdate>2003</risdate><abstract>Bleaching a particulate calcium carbonate aqueous slurry with a reductive bleaching agent such as formamidine sulfinic acid increases the viscosity of the slurry. Combining the slurry with a metal material such as strontium hydroxide reduces any increase in viscosity of the bleached calcium carbonate slurry. Addition of the reductive bleaching agent and/or the metal material takes place prior to, during or after the manufacture of the slurry or the bleaching step. Metal materials in one embodiment include those that form substantially water insoluble precipitates of the reductive bleaching reaction products.
Sachant que la décoloration de suspension aqueuse de carbonate de calcium particulaire au moyen d'un agent décolorant réducteur du type acide sulfinique de formamidine a pour effet d'augmenter la viscosité de la suspension, le fait de combiner cette suspension avec un matériau métallique du type hydroxyde de strontium permet d'amenuiser toute augmentation de la viscosité de la suspension de carbonate de calcium décolorée. L'adjonction d'agent décolorant réducteur et/ou de matériau métallique intervient avant, pendant ou après la fabrication de la suspension ou la décoloration. Selon une variante, le matériau métallique s'entend d'un matériau générateur de précipités sensiblement non hydrosolubles des produits de réaction décolorants réducteurs.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS DYES INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS 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 | STABILIZATION OF THE VISCOSITY OF FORMAMIDINE SULFINIC ACID BLEACHED CALCIUM CARBONATE SLURRIES |
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