DE3303097
For the sulphating roasting of sulphidic raw materials, calcium carbonate of a maximum particle size of 0.1 mm is admixed with the raw materials. During the subsequent roasting, CO2 is liberated from the calcium carbonate and thus aids the separation of the sulphur, the operation being carried out a...
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| creator | HANS, WALTER, , KINDBERG-AUMUEHL, AT MUELLNER, PAUL, , TRAUN, AT REITERER, HANS-DETLEF., GRAZ, AT KATZENSTEINER, KARL, , LINZ, AT |
| description | For the sulphating roasting of sulphidic raw materials, calcium carbonate of a maximum particle size of 0.1 mm is admixed with the raw materials. During the subsequent roasting, CO2 is liberated from the calcium carbonate and thus aids the separation of the sulphur, the operation being carried out at low temperatures of at least 200 DEG C, and in particular 400-1000 DEG C. The operation is preferably carried out within the range of 450-850 DEG C, i.e. therefore below the decomposition temperature of pure calcium carbonate. |
| format | Patent |
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During the subsequent roasting, CO2 is liberated from the calcium carbonate and thus aids the separation of the sulphur, the operation being carried out at low temperatures of at least 200 DEG C, and in particular 400-1000 DEG C. The operation is preferably carried out within the range of 450-850 DEG C, i.e. therefore below the decomposition temperature of pure calcium carbonate.</description><edition>4</edition><language>eng</language><subject>CHEMISTRY ; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ; FERROUS OR NON-FERROUS ALLOYS ; INORGANIC CHEMISTRY ; METALLURGY ; PRETREATMENT OF RAW MATERIALS ; PRODUCTION AND REFINING OF METALS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>1985</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=19850711&DB=EPODOC&CC=DE&NR=3303097C2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19850711&DB=EPODOC&CC=DE&NR=3303097C2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HANS, WALTER, , KINDBERG-AUMUEHL, AT</creatorcontrib><creatorcontrib>MUELLNER, PAUL, , TRAUN, AT</creatorcontrib><creatorcontrib>REITERER, HANS-DETLEF., GRAZ, AT</creatorcontrib><creatorcontrib>KATZENSTEINER, KARL, , LINZ, AT</creatorcontrib><title>DE3303097</title><description>For the sulphating roasting of sulphidic raw materials, calcium carbonate of a maximum particle size of 0.1 mm is admixed with the raw materials. During the subsequent roasting, CO2 is liberated from the calcium carbonate and thus aids the separation of the sulphur, the operation being carried out at low temperatures of at least 200 DEG C, and in particular 400-1000 DEG C. The operation is preferably carried out within the range of 450-850 DEG C, i.e. therefore below the decomposition temperature of pure calcium carbonate.</description><subject>CHEMISTRY</subject><subject>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>PRETREATMENT OF RAW MATERIALS</subject><subject>PRODUCTION AND REFINING OF METALS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1985</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOB0cTU2NjA2sDTnYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxcPXORsZEKAEAy0oaag</recordid><startdate>19850711</startdate><enddate>19850711</enddate><creator>HANS, WALTER, , KINDBERG-AUMUEHL, AT</creator><creator>MUELLNER, PAUL, , TRAUN, AT</creator><creator>REITERER, HANS-DETLEF., GRAZ, AT</creator><creator>KATZENSTEINER, KARL, , LINZ, AT</creator><scope>EVB</scope></search><sort><creationdate>19850711</creationdate><title>DE3303097</title><author>HANS, WALTER, , KINDBERG-AUMUEHL, AT ; MUELLNER, PAUL, , TRAUN, AT ; REITERER, HANS-DETLEF., GRAZ, AT ; KATZENSTEINER, KARL, , LINZ, AT</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE3303097C23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1985</creationdate><topic>CHEMISTRY</topic><topic>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>PRETREATMENT OF RAW MATERIALS</topic><topic>PRODUCTION AND REFINING OF METALS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>HANS, WALTER, , KINDBERG-AUMUEHL, AT</creatorcontrib><creatorcontrib>MUELLNER, PAUL, , TRAUN, AT</creatorcontrib><creatorcontrib>REITERER, HANS-DETLEF., GRAZ, AT</creatorcontrib><creatorcontrib>KATZENSTEINER, KARL, , LINZ, AT</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>HANS, WALTER, , KINDBERG-AUMUEHL, AT</au><au>MUELLNER, PAUL, , TRAUN, AT</au><au>REITERER, HANS-DETLEF., GRAZ, AT</au><au>KATZENSTEINER, KARL, , LINZ, AT</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>DE3303097</title><date>1985-07-11</date><risdate>1985</risdate><abstract>For the sulphating roasting of sulphidic raw materials, calcium carbonate of a maximum particle size of 0.1 mm is admixed with the raw materials. During the subsequent roasting, CO2 is liberated from the calcium carbonate and thus aids the separation of the sulphur, the operation being carried out at low temperatures of at least 200 DEG C, and in particular 400-1000 DEG C. The operation is preferably carried out within the range of 450-850 DEG C, i.e. therefore below the decomposition temperature of pure calcium carbonate.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| subjects | CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | DE3303097 |
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