Fremgangsmåte for fremstilling av silisiumkarbid

A mixt. of powdered SiO2 and carbon is pressed into pellets to give a min. apparent density of 1.0 g/cm3 and min. compressive strength of 6.5 kg/cm2; the pellets are then mixed with non-reacted or partly reacted reclaimed matl. as a furnace packing and heated in an electric furnace with a min. remai...

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1. Verfasser:	MINEMURA, YUJI
Format:	Patent
Sprache:	nor
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS THEREOF CONCRETE INORGANIC CHEMISTRY LIME, MAGNESIA METALLURGY NON-METALLIC ELEMENTS REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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creator	MINEMURA, YUJI
description	A mixt. of powdered SiO2 and carbon is pressed into pellets to give a min. apparent density of 1.0 g/cm3 and min. compressive strength of 6.5 kg/cm2; the pellets are then mixed with non-reacted or partly reacted reclaimed matl. as a furnace packing and heated in an electric furnace with a min. remaining air space of 10%. The reclaimed material comprises 50% SiO2, 30% C, 20% SiC, with particle size distribution 47.5% 9-1 mm sieve with 52.5% passing through a 1 mm sieve; the use of this material and the controlled density of the pellets prevents the blow-ups, smoke and bad odours from mercaptans, which arise when sawdust is used as a furnace packing.
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The reclaimed material comprises 50% SiO2, 30% C, 20% SiC, with particle size distribution 47.5% 9-1 mm sieve with 52.5% passing through a 1 mm sieve; the use of this material and the controlled density of the pellets prevents the blow-ups, smoke and bad odours from mercaptans, which arise when sawdust is used as a furnace packing.</description><subject>ARTIFICIAL STONE</subject><subject>CEMENTS</subject><subject>CERAMICS</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</subject><subject>COMPOUNDS THEREOF</subject><subject>CONCRETE</subject><subject>INORGANIC CHEMISTRY</subject><subject>LIME, MAGNESIA</subject><subject>METALLURGY</subject><subject>NON-METALLIC ELEMENTS</subject><subject>REFRACTORIES</subject><subject>SLAG</subject><subject>TREATMENT OF NATURAL STONE</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1974</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDB0K0rNTU_MSy_OPby0JFUhLb9IIQ0oVFySmZOTmZeukFimUJyZk1mcWZqbnViUlJnCw8CalphTnMoLpbkZ5NxcQ5w9dFML8uNTiwsSk1PzUkvi_fzNTQwNTAwcjQkqAAAn_yu8</recordid><startdate>19741025</startdate><enddate>19741025</enddate><creator>MINEMURA, YUJI</creator><scope>EVB</scope></search><sort><creationdate>19741025</creationdate><title>Fremgangsmåte for fremstilling av silisiumkarbid</title><author>MINEMURA, YUJI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_NO741040A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>nor</language><creationdate>1974</creationdate><topic>ARTIFICIAL STONE</topic><topic>CEMENTS</topic><topic>CERAMICS</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS</topic><topic>COMPOUNDS THEREOF</topic><topic>CONCRETE</topic><topic>INORGANIC CHEMISTRY</topic><topic>LIME, MAGNESIA</topic><topic>METALLURGY</topic><topic>NON-METALLIC ELEMENTS</topic><topic>REFRACTORIES</topic><topic>SLAG</topic><topic>TREATMENT OF NATURAL STONE</topic><toplevel>online_resources</toplevel><creatorcontrib>MINEMURA, YUJI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MINEMURA, YUJI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Fremgangsmåte for fremstilling av silisiumkarbid</title><date>1974-10-25</date><risdate>1974</risdate><abstract>A mixt. of powdered SiO2 and carbon is pressed into pellets to give a min. apparent density of 1.0 g/cm3 and min. compressive strength of 6.5 kg/cm2; the pellets are then mixed with non-reacted or partly reacted reclaimed matl. as a furnace packing and heated in an electric furnace with a min. remaining air space of 10%. 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subjects	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS THEREOF CONCRETE INORGANIC CHEMISTRY LIME, MAGNESIA METALLURGY NON-METALLIC ELEMENTS REFRACTORIES SLAG TREATMENT OF NATURAL STONE
title	Fremgangsmåte for fremstilling av silisiumkarbid
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