Förfarande och system för att tillverka utfällt kalciumkarbonat
A method for manufacturing precipitated calcium carbonate (PCC) comprises the steps of increasing the pressure and temperature of a stream containing oxidizable material and water; causing the stream to flow in a first reaction chamber system; adding oxidant to the first reaction chamber system, oxi...
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| creator | LARS STENMARK ANDERS GIDNER KIM CARLSSON FREDRIK LUNDSTROEM MATS LARSSON GERT WASS JOERGEN DAHLIN ERIK MATTSSON |
| description | A method for manufacturing precipitated calcium carbonate (PCC) comprises the steps of increasing the pressure and temperature of a stream containing oxidizable material and water; causing the stream to flow in a first reaction chamber system; adding oxidant to the first reaction chamber system, oxidizing the oxidizable material of the stream through supercritical water oxidation (SCWO) to form carbon dioxide and water; causing the stream to leave the first reaction chamber system; causing the stream to flow in a second reaction chamber system; adding lime to the second reaction chamber system so that the carbon dioxide of the stream and the lime react to form PCC; and thereafter reducing the pressure of the stream. Preferably, the stream is a deinking sludge, wherein the method improves the brightness of paper filler recovered from the deinking sludge by means of precipitating PCC onto the paper filler. |
| format | Patent |
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Preferably, the stream is a deinking sludge, wherein the method improves the brightness of paper filler recovered from the deinking sludge by means of precipitating PCC onto the paper filler.</description><language>swe</language><subject>ADHESIVES ; APPARATUS THEREFOR ; CHEMISTRY ; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS ; DYES ; IMPREGNATING OR COATING OF PAPER ; INORGANIC CHEMISTRY ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; PAINTS ; PAPER NOT OTHERWISE PROVIDED FOR ; PAPER-MAKING ; POLISHES ; PREPARATION OF CARBON BLACK ; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D ; PRODUCTION OF CELLULOSE ; PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS ; PULP COMPOSITIONS ; REGENERATION OF PULPING LIQUORS ; TEXTILES ; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G ; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES</subject><creationdate>2007</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=20070123&DB=EPODOC&CC=SE&NR=528693C2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070123&DB=EPODOC&CC=SE&NR=528693C2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LARS STENMARK</creatorcontrib><creatorcontrib>ANDERS GIDNER</creatorcontrib><creatorcontrib>KIM CARLSSON</creatorcontrib><creatorcontrib>FREDRIK LUNDSTROEM</creatorcontrib><creatorcontrib>MATS LARSSON</creatorcontrib><creatorcontrib>GERT WASS</creatorcontrib><creatorcontrib>JOERGEN DAHLIN</creatorcontrib><creatorcontrib>ERIK MATTSSON</creatorcontrib><title>Förfarande och system för att tillverka utfällt kalciumkarbonat</title><description>A method for manufacturing precipitated calcium carbonate (PCC) comprises the steps of increasing the pressure and temperature of a stream containing oxidizable material and water; causing the stream to flow in a first reaction chamber system; adding oxidant to the first reaction chamber system, oxidizing the oxidizable material of the stream through supercritical water oxidation (SCWO) to form carbon dioxide and water; causing the stream to leave the first reaction chamber system; causing the stream to flow in a second reaction chamber system; adding lime to the second reaction chamber system so that the carbon dioxide of the stream and the lime react to form PCC; and thereafter reducing the pressure of the stream. Preferably, the stream is a deinking sludge, wherein the method improves the brightness of paper filler recovered from the deinking sludge by means of precipitating PCC onto the paper filler.</description><subject>ADHESIVES</subject><subject>APPARATUS THEREFOR</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>IMPREGNATING OR COATING OF PAPER</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>PAPER NOT OTHERWISE PROVIDED FOR</subject><subject>PAPER-MAKING</subject><subject>POLISHES</subject><subject>PREPARATION OF CARBON BLACK</subject><subject>PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D</subject><subject>PRODUCTION OF CELLULOSE</subject><subject>PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS</subject><subject>PULP COMPOSITIONS</subject><subject>REGENERATION OF PULPING LIQUORS</subject><subject>TEXTILES</subject><subject>TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G</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>2007</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHByO7ytKC2xKDEvJVUhPzlDobiyuCQ1VyENKKyQWFKiUJKZk1OWWpSdqFBaknZ4SU5OiUJ2Yk5yZmludmJRUn5eYgkPA2taYk5xKi-U5maQd3MNcfbQTS3Ij08tLkhMTs1LLYkPdjU1sjCzNHY2MiasAgCtajPg</recordid><startdate>20070123</startdate><enddate>20070123</enddate><creator>LARS STENMARK</creator><creator>ANDERS GIDNER</creator><creator>KIM CARLSSON</creator><creator>FREDRIK LUNDSTROEM</creator><creator>MATS LARSSON</creator><creator>GERT WASS</creator><creator>JOERGEN DAHLIN</creator><creator>ERIK MATTSSON</creator><scope>EVB</scope></search><sort><creationdate>20070123</creationdate><title>Förfarande och system för att tillverka utfällt kalciumkarbonat</title><author>LARS STENMARK ; 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causing the stream to flow in a first reaction chamber system; adding oxidant to the first reaction chamber system, oxidizing the oxidizable material of the stream through supercritical water oxidation (SCWO) to form carbon dioxide and water; causing the stream to leave the first reaction chamber system; causing the stream to flow in a second reaction chamber system; adding lime to the second reaction chamber system so that the carbon dioxide of the stream and the lime react to form PCC; and thereafter reducing the pressure of the stream. Preferably, the stream is a deinking sludge, wherein the method improves the brightness of paper filler recovered from the deinking sludge by means of precipitating PCC onto the paper filler.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES APPARATUS THEREFOR CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS DYES IMPREGNATING OR COATING OF PAPER INORGANIC CHEMISTRY METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING POLISHES PREPARATION OF CARBON BLACK PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS PULP COMPOSITIONS REGENERATION OF PULPING LIQUORS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES |
| title | Förfarande och system för att tillverka utfällt kalciumkarbonat |
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