{"id":15904,"date":"2024-11-13T06:15:52","date_gmt":"2024-11-13T06:15:52","guid":{"rendered":"http:\/\/quartz-grinding.com\/?p=15904"},"modified":"2024-11-13T06:20:11","modified_gmt":"2024-11-13T06:20:11","slug":"solution-of-short-supply-of-high-purity-quartz","status":"publish","type":"post","link":"https:\/\/www.quartz-grinding.com\/fr\/solution-of-short-supply-of-high-purity-quartz\/","title":{"rendered":"Comment r\u00e9soudre le probl\u00e8me de p\u00e9nurie de quartz de haute puret\u00e9"},"content":{"rendered":"

1. \u00c9tat d'application du quartz de haute puret\u00e9<\/strong><\/h2>\n\n\n\n

Le quartz de haute puret\u00e9 poss\u00e8de d'excellentes propri\u00e9t\u00e9s physiques et chimiques. Les propri\u00e9t\u00e9s comprennent : r\u00e9sistance \u00e0 haute temp\u00e9rature, r\u00e9sistance \u00e0 la corrosion, r\u00e9sistance \u00e9lev\u00e9e, transmission lumineuse \u00e9lev\u00e9e et faible coefficient de dilatation thermique. Il est largement utilis\u00e9 dans les domaines de semi-conducteur<\/a>, communication par fibre optique<\/a>, source photovolta\u00efque, optique et \u00e9lectro-lumineuse. C'est un support important et un mat\u00e9riau irrempla\u00e7able pour les industries de fusion strat\u00e9gique.<\/p>\n\n\n\n

Il existe deux technologies principales pour la production de quartz de haute puret\u00e9. Il s'agit des technologies de traitement et de purification physiques et chimiques et de synth\u00e8se chimique. \u00c0 l'heure actuelle, en raison de l'\u00e9puisement croissant des cristaux naturels, qui sont les mati\u00e8res premi\u00e8res du quartz de haute puret\u00e9, et du fait que les minerais de quartz bruts existants sont principalement de petite et moyenne taille, difficiles \u00e0 traiter et \u00e0 purifier, la mati\u00e8re premi\u00e8re de quartz de haute puret\u00e9 de la Chine est en p\u00e9nurie et d\u00e9pend fortement des importations. Dans ces circonstances, ces derni\u00e8res ann\u00e9es, de nombreuses entreprises ont commenc\u00e9 \u00e0 se concentrer sur la production de quartz de haute puret\u00e9 par synth\u00e8se chimique.<\/p>\n\n\n\n

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2. M\u00e9thodes de synth\u00e8se de quartz de haute puret\u00e9<\/strong><\/h2>\n\n\n\n

\u25c8 Gaz phase<\/a> m\u00e9thode de synth\u00e8se<\/strong><\/h3>\n\n\n\n

La m\u00e9thode de synth\u00e8se en phase gazeuse fait r\u00e9f\u00e9rence \u00e0 l'hydrolyse par flamme. Plus pr\u00e9cis\u00e9ment, elle utilise du silicium ou du chlorure d'organosilicium comme mati\u00e8re premi\u00e8re. Tout d'abord, la mati\u00e8re premi\u00e8re est gaz\u00e9ifi\u00e9e, puis m\u00e9lang\u00e9e \u00e0 de l'hydrog\u00e8ne et de l'oxyg\u00e8ne, et hydrolys\u00e9e \u00e0 haute temp\u00e9rature pour former du SiO2 sous forme de brouillard. Enfin, gr\u00e2ce \u00e0 la s\u00e9paration gaz-solide par refroidissement, s\u00e9paration et d\u00e9sacidification, on obtient du quartz de haute qualit\u00e9. Le quartz obtenu par cette m\u00e9thode est du SiO2 en phase gazeuse, avec une taille de particule inf\u00e9rieure \u00e0 100 nm. Il a une apparence pelucheuse et poreuse, une grande surface sp\u00e9cifique, une puret\u00e9 chimique \u00e9lev\u00e9e et une bonne dispersibilit\u00e9.<\/p>\n\n\n\n

\u25c8 M\u00e9thode de pr\u00e9cipitation chimique<\/strong><\/h3>\n\n\n\n

La m\u00e9thode de pr\u00e9cipitation chimique est l'une des m\u00e9thodes les plus utilis\u00e9es pour synth\u00e9tiser la poudre de quartz. Cette m\u00e9thode utilise du silicate de sodium avec du dioxyde de carbone ou une solution acide comme mati\u00e8re premi\u00e8re, puis ils r\u00e9agissent sous l'action d'un tensioactif et d'une certaine temp\u00e9rature de synth\u00e8se, pour obtenir un pr\u00e9cipit\u00e9 d'acide m\u00e9tasilicique. Ensuite, par filtration, lavage, s\u00e9chage et calcination, on obtient finalement du SiO2.<\/p>\n\n\n\n

\u25c8 M\u00e9thode Sol-gel<\/strong><\/h3>\n\n\n\n

La m\u00e9thode sol-gel utilise un sel inorganique ou un alcoxyde m\u00e9tallique (g\u00e9n\u00e9ralement du silicate d'\u00e9thyle) comme mati\u00e8re premi\u00e8re. En ajoutant de l'alcool comme cosolvant et une solution acide ou alcaline comme catalyseur pour hydrolyser, puis apr\u00e8s polycondensation pour former un gel de SiO2. Ensuite, le gel de SiO2 est filtr\u00e9 et par lavage, s\u00e9chage et calcination du solvant organique dans le gel, pour obtenir de la poudre de SiO2.<\/p>\n\n\n\n

\u25c8 M\u00e9thode d'hydrolyse en phase liquide du t\u00e9trachlorure de silicium<\/strong><\/h3>\n\n\n\n

Cette m\u00e9thode signifie que SiCl4<\/sub> subit une hydrolyse et une polycondensation au contact de l'eau pure, puis par lavage, filtrage, s\u00e9chage, calcination et tamisage du produit de r\u00e9action, pour obtenir de la poudre de SiO2.<\/p>\n\n\n\n

3. R\u00e9sum\u00e9<\/strong><\/h2>\n\n\n\n

Les principales m\u00e9thodes de production de quartz synth\u00e9tique de haute puret\u00e9 sont d\u00e9crites ci-dessus. Ces m\u00e9thodes peuvent r\u00e9pondre aux besoins en quartz de haute puret\u00e9 dans diff\u00e9rents domaines et garantir ses performances et sa stabilit\u00e9 dans diverses applications. Dans une certaine mesure, elles r\u00e9solvent le probl\u00e8me de la p\u00e9nurie de quartz de haute puret\u00e9.<\/p>\n\n\n\n

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Le quartz de haute puret\u00e9 est principalement utilis\u00e9 dans les domaines des semi-conducteurs, du photovolta\u00efque, de la fibre optique et de l'optique de pr\u00e9cision, etc. Ces domaines ont des exigences strictes en mati\u00e8re de puret\u00e9 et de finesse du quartz. Par cons\u00e9quent, il est tr\u00e8s important de broyer et de classer le quartz avant une application pratique. Le broyeur \u00e0 boulets et le classificateur \u00e0 air produits par Qingdao Epic peuvent broyer et classer le quartz avec de bonnes performances.<\/strong><\/mark><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Qingdao Epic Powder Machinery Co., Ltd<\/em><\/strong><\/em><\/strong>.<\/a> est un fabricant<\/a> sp\u00e9cialis\u00e9e dans la production d'\u00e9quipements de traitement de poudre.<\/mark><\/p>\n\n\n\n

 Ses produits comprennent :<\/p>\n\n\n\n

\u2013 Moulin : broyeur \u00e0 billes<\/a>, broyeur \u00e0 rouleaux, broyeur \u00e0 jet, broyeur classificateur \u00e0 air, broyeur \u00e0 vibrations et broyeur \u00e0 impact, etc.<\/strong><\/p>\n\n\n\n

– Classeur \u00e0 air<\/a>:quatre s\u00e9ries de classificateurs d'air : HTS<\/a>, CCI<\/a>, MBS et CTC.<\/strong><\/p>\n\n\n\n

\u2013 Modificateur : modificateur \u00e0 broches, modificateur \u00e0 turbo-broyeur et modificateur \u00e0 trois rouleaux, etc.<\/strong><\/p>\n\n\n\n

\u2013 Equipements auxiliaires : armoire de commande, d\u00e9poussi\u00e9reur et \u00e9l\u00e9vateur \u00e0 godets, etc.<\/strong><\/p>\n\n\n\n

\u2013 Les clients peuvent \u00e9galement personnaliser en fonction de leurs besoins, un client, un design<\/a>.<\/strong><\/p>\n\n\n\n

Si vous \u00eates int\u00e9ress\u00e9 par un broyeur \u00e0 boulets ou un classeur \u00e0 air ou d'autres \u00e9quipements de L'\u00e9pop\u00e9e de Qingdao<\/a>, s'il te pla\u00eet contacter le personnel<\/a> directement, ils sont toujours \u00e0 votre service.  <\/p>\n\n\n\n

Vous trouverez ci-dessous des photos de Qingdao Epic pour votre r\u00e9f\u00e9rence. <\/mark><\/em><\/strong><\/em><\/strong><\/p>\n\n\n\n

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<\/p>","protected":false},"excerpt":{"rendered":"

1. Statut d'application du quartz de haute puret\u00e9 Le quartz de haute puret\u00e9 poss\u00e8de d'excellentes propri\u00e9t\u00e9s physiques et chimiques. Les propri\u00e9t\u00e9s comprennent : r\u00e9sistance \u00e0 haute temp\u00e9rature, r\u00e9sistance \u00e0 la corrosion, r\u00e9sistance \u00e9lev\u00e9e, transmission lumineuse \u00e9lev\u00e9e et faible coefficient [\u2026]<\/p>","protected":false},"author":1,"featured_media":15916,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[42],"tags":[],"class_list":["post-15904","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"yoast_head":"\nHow to Solve Problem of Short Supply of High-purity Quartz<\/title>\n<meta name=\"description\" content=\"High-purity quartz has excellent physical and chemical properties. In recenty years, China's high-purity quartz is in short supply,\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.quartz-grinding.com\/fr\/solution-of-short-supply-of-high-purity-quartz\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Solve Problem of Short Supply of High-purity Quartz\" \/>\n<meta property=\"og:description\" content=\"High-purity quartz has excellent physical and chemical properties. 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