PROCESS FOR PRODUCING VITROCRYSTALLINE PYROXENE MATERIALS RESISTING TO WEAR AND CHEMICAL AGENTS
The invention relates to a process for producing crystallized products resisting to wear and chemical agents, employed for cladding tanks in the chemical, mining and food industries, said products having an oxide composition comprising 42...55% SiO2, 9...18% Al 2 O3, 0.2...0.4% TiO2, 5.5. ...8.64% F...
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creator | DUCA MIHAI VOICU DUCA MIHAELA MARIA |
description | The invention relates to a process for producing crystallized products resisting to wear and chemical agents, employed for cladding tanks in the chemical, mining and food industries, said products having an oxide composition comprising 42...55% SiO2, 9...18% Al 2 O3, 0.2...0.4% TiO2, 5.5. ...8.64% Fe2 O3; 13.4...24.10% CaO; 6.54...8.64% MgO ; 1.1...1.5% alkaline oxides. The process consists in melting a mixture comprising ash and slag resulting from steam power plants, dolomite, marble and sand at a temperature of 1450 ° C.The glass melt is pressed in adequate metal dies, the product is annealed at the temperature of 700°C then crystallized in two steps, a first step at the temperature of 750°C for an hour and the second step at the temperature of 1100°C for two hours, followed by cooling at a rate of 40°C/ for 20 hours..
Invenţia se referă la un procedeu de obţinere a unor produse cristalizate, rezistente la uzură şi agenţi chimici, utilizate la placarea bazinelor în industria chimică, minieră şi alimentară, având o compoziţie oxidică, alcătuită din 42...55% SiO, 9...18% AlO, 0,2...0,4 TiO, 5,5...8,64% FeO; 13,4...24,10% CaO; 6,54...8,64% MgO; 1,1...1,5% oxizi alcalini. Procedeul constă în topirea la temperatura de 1450°C a unui amestec constituit din cenuşă sau zgură de termocentrală, dolomit, marmură şi nisip. Se presează topitura de sticlă în matriţe metalice adecvate, se recoace produsul la temperatura de 700°C, apoi se cristalizează în două etape, prima la temperatura de 750°C, timp de 1 h, şi a doua, la temperatura de 1100°C, timp de 2 h, ulterior răcindu-se cu o viteză de 40°C/h, timp de20 h. |
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Invenţia se referă la un procedeu de obţinere a unor produse cristalizate, rezistente la uzură şi agenţi chimici, utilizate la placarea bazinelor în industria chimică, minieră şi alimentară, având o compoziţie oxidică, alcătuită din 42...55% SiO, 9...18% AlO, 0,2...0,4 TiO, 5,5...8,64% FeO; 13,4...24,10% CaO; 6,54...8,64% MgO; 1,1...1,5% oxizi alcalini. Procedeul constă în topirea la temperatura de 1450°C a unui amestec constituit din cenuşă sau zgură de termocentrală, dolomit, marmură şi nisip. Se presează topitura de sticlă în matriţe metalice adecvate, se recoace produsul la temperatura de 700°C, apoi se cristalizează în două etape, prima la temperatura de 750°C, timp de 1 h, şi a doua, la temperatura de 1100°C, timp de 2 h, ulterior răcindu-se cu o viteză de 40°C/h, timp de20 h.</description><language>eng ; rum</language><subject>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS ; CHEMISTRY ; GLASS ; JOINING GLASS TO GLASS OR OTHER MATERIALS ; METALLURGY ; MINERAL OR SLAG WOOL ; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS ; SURFACE TREATMENT OF GLASS</subject><creationdate>2001</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=20010629&DB=EPODOC&CC=RO&NR=116806B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20010629&DB=EPODOC&CC=RO&NR=116806B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DUCA MIHAI VOICU</creatorcontrib><creatorcontrib>DUCA MIHAELA MARIA</creatorcontrib><title>PROCESS FOR PRODUCING VITROCRYSTALLINE PYROXENE MATERIALS RESISTING TO WEAR AND CHEMICAL AGENTS</title><description>The invention relates to a process for producing crystallized products resisting to wear and chemical agents, employed for cladding tanks in the chemical, mining and food industries, said products having an oxide composition comprising 42...55% SiO2, 9...18% Al 2 O3, 0.2...0.4% TiO2, 5.5. ...8.64% Fe2 O3; 13.4...24.10% CaO; 6.54...8.64% MgO ; 1.1...1.5% alkaline oxides. The process consists in melting a mixture comprising ash and slag resulting from steam power plants, dolomite, marble and sand at a temperature of 1450 ° C.The glass melt is pressed in adequate metal dies, the product is annealed at the temperature of 700°C then crystallized in two steps, a first step at the temperature of 750°C for an hour and the second step at the temperature of 1100°C for two hours, followed by cooling at a rate of 40°C/ for 20 hours..
Invenţia se referă la un procedeu de obţinere a unor produse cristalizate, rezistente la uzură şi agenţi chimici, utilizate la placarea bazinelor în industria chimică, minieră şi alimentară, având o compoziţie oxidică, alcătuită din 42...55% SiO, 9...18% AlO, 0,2...0,4 TiO, 5,5...8,64% FeO; 13,4...24,10% CaO; 6,54...8,64% MgO; 1,1...1,5% oxizi alcalini. Procedeul constă în topirea la temperatura de 1450°C a unui amestec constituit din cenuşă sau zgură de termocentrală, dolomit, marmură şi nisip. Se presează topitura de sticlă în matriţe metalice adecvate, se recoace produsul la temperatura de 700°C, apoi se cristalizează în două etape, prima la temperatura de 750°C, timp de 1 h, şi a doua, la temperatura de 1100°C, timp de 2 h, ulterior răcindu-se cu o viteză de 40°C/h, timp de20 h.</description><subject>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS</subject><subject>CHEMISTRY</subject><subject>GLASS</subject><subject>JOINING GLASS TO GLASS OR OTHER MATERIALS</subject><subject>METALLURGY</subject><subject>MINERAL OR SLAG WOOL</subject><subject>SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS</subject><subject>SURFACE TREATMENT OF GLASS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2001</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqFisEKgkAQQL10iOobmh8IkkC6TuuoC-uuzIyVJ5HYTlGC_T8ZdO_0Ho-3TPqGgyERKALD7HlrrC_hbHXu3Imic9YTNB2HK81SoxJbdAJMYkW_twa4EDKgz8FUVFuDDrAkr7JOFvfhMcXNj6tkW5CaahfHVx-ncbjFZ3z3HNI0O-6zU3r4f3wA4uwy8g</recordid><startdate>20010629</startdate><enddate>20010629</enddate><creator>DUCA MIHAI VOICU</creator><creator>DUCA MIHAELA MARIA</creator><scope>EVB</scope></search><sort><creationdate>20010629</creationdate><title>PROCESS FOR PRODUCING VITROCRYSTALLINE PYROXENE MATERIALS RESISTING TO WEAR AND CHEMICAL AGENTS</title><author>DUCA MIHAI VOICU ; DUCA MIHAELA MARIA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_RO116806B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; rum</language><creationdate>2001</creationdate><topic>CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS</topic><topic>CHEMISTRY</topic><topic>GLASS</topic><topic>JOINING GLASS TO GLASS OR OTHER MATERIALS</topic><topic>METALLURGY</topic><topic>MINERAL OR SLAG WOOL</topic><topic>SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS</topic><topic>SURFACE TREATMENT OF GLASS</topic><toplevel>online_resources</toplevel><creatorcontrib>DUCA MIHAI VOICU</creatorcontrib><creatorcontrib>DUCA MIHAELA MARIA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DUCA MIHAI VOICU</au><au>DUCA MIHAELA MARIA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PROCESS FOR PRODUCING VITROCRYSTALLINE PYROXENE MATERIALS RESISTING TO WEAR AND CHEMICAL AGENTS</title><date>2001-06-29</date><risdate>2001</risdate><abstract>The invention relates to a process for producing crystallized products resisting to wear and chemical agents, employed for cladding tanks in the chemical, mining and food industries, said products having an oxide composition comprising 42...55% SiO2, 9...18% Al 2 O3, 0.2...0.4% TiO2, 5.5. ...8.64% Fe2 O3; 13.4...24.10% CaO; 6.54...8.64% MgO ; 1.1...1.5% alkaline oxides. The process consists in melting a mixture comprising ash and slag resulting from steam power plants, dolomite, marble and sand at a temperature of 1450 ° C.The glass melt is pressed in adequate metal dies, the product is annealed at the temperature of 700°C then crystallized in two steps, a first step at the temperature of 750°C for an hour and the second step at the temperature of 1100°C for two hours, followed by cooling at a rate of 40°C/ for 20 hours..
Invenţia se referă la un procedeu de obţinere a unor produse cristalizate, rezistente la uzură şi agenţi chimici, utilizate la placarea bazinelor în industria chimică, minieră şi alimentară, având o compoziţie oxidică, alcătuită din 42...55% SiO, 9...18% AlO, 0,2...0,4 TiO, 5,5...8,64% FeO; 13,4...24,10% CaO; 6,54...8,64% MgO; 1,1...1,5% oxizi alcalini. Procedeul constă în topirea la temperatura de 1450°C a unui amestec constituit din cenuşă sau zgură de termocentrală, dolomit, marmură şi nisip. Se presează topitura de sticlă în matriţe metalice adecvate, se recoace produsul la temperatura de 700°C, apoi se cristalizează în două etape, prima la temperatura de 750°C, timp de 1 h, şi a doua, la temperatura de 1100°C, timp de 2 h, ulterior răcindu-se cu o viteză de 40°C/h, timp de20 h.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS |
title | PROCESS FOR PRODUCING VITROCRYSTALLINE PYROXENE MATERIALS RESISTING TO WEAR AND CHEMICAL AGENTS |
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