PRODUCTION OF ACTIVATED CARBON

PRODUCTION OF ACTIVATED CARBON

PURPOSE:To obtain an activated carbon having increased specific surface area and improved mechanical strength by mixing finely pulverized strongly caking coal with finely pulverized non-caking coal, compression-molding the mixture, oxidizing the molded article and carbonizing and activating the oxid...

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1. Verfasser: YAMAGUCHI TOKUJI
Format: Patent
Sprache:eng
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CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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creator YAMAGUCHI TOKUJI
description PURPOSE:To obtain an activated carbon having increased specific surface area and improved mechanical strength by mixing finely pulverized strongly caking coal with finely pulverized non-caking coal, compression-molding the mixture, oxidizing the molded article and carbonizing and activating the oxidation product. CONSTITUTION:Strongly caking coal having a Roga index of >=80 and finely pulverized to
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CONSTITUTION:Strongly caking coal having a Roga index of &gt;=80 and finely pulverized to &lt;=74mum diameter is mixed with 10-50wt.% of non-caking coal having a volatile content of 45% (d) and particle size finer than that of the strongly caking coal. The mixture is compression-molded without using a binder to obtain granulated coal. 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CONSTITUTION:Strongly caking coal having a Roga index of &gt;=80 and finely pulverized to &lt;=74mum diameter is mixed with 10-50wt.% of non-caking coal having a volatile content of 45% (d) and particle size finer than that of the strongly caking coal. The mixture is compression-molded without using a binder to obtain granulated coal. 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CONSTITUTION:Strongly caking coal having a Roga index of &gt;=80 and finely pulverized to &lt;=74mum diameter is mixed with 10-50wt.% of non-caking coal having a volatile content of 45% (d) and particle size finer than that of the strongly caking coal. The mixture is compression-molded without using a binder to obtain granulated coal. The granulated coal is optionally sieved and supplied to a rotary furnace or a fluidized bed, oxidized in an O2-containing oxidizing gas atmosphere at 100-370 deg.C, carbonized at 600-700 deg.C and finally activated in steam and/or CO2 gas atmosphere.</abstract><oa>free_for_read</oa></addata></record>
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subjects CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
title PRODUCTION OF ACTIVATED CARBON
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