{"id":6666,"date":"2021-04-04T13:59:14","date_gmt":"2021-04-04T13:59:14","guid":{"rendered":"https:\/\/www.aluminaceramicball.com\/?p=6666"},"modified":"2021-04-12T06:56:12","modified_gmt":"2021-04-12T06:56:12","slug":"recyclage-des-billes-dalumine-inerte-usagees","status":"publish","type":"post","link":"https:\/\/www.aluminaceramicball.com\/fr\/recyclage-des-billes-dalumine-inerte-usagees\/","title":{"rendered":"Comment recycler les billes d'alumine inerte usag\u00e9es ?"},"content":{"rendered":"

Quelles sont les utilisations des billes d'alumine inerte usag\u00e9es ?<\/h2>\n

1. Technologie de traitement thermique<\/strong>y<\/p>\n

Les produits utilis\u00e9s billes d'alumine inertes<\/a> sont nettoy\u00e9s \u00e0 l'eau \u2192 s\u00e9ch\u00e9s \u2192 calcin\u00e9s.<\/p>\n

Des temp\u00e9ratures de calcination et des dur\u00e9es de maintien diff\u00e9rentes affectent la fonction, la disposition des phases cristallines et la disposition microscopique de l'\u00e9chantillon. R\u00e9sultats des tests : Chaque \u00e9chantillon constitue deux phases cristallines : (Al2O3)(1.33) solution solide vide et Al(2.85)O(3.45)N(0.55) solution solide vide, le premier est un syst\u00e8me cristallin cubique, groupe d'espace Fm3m, et le second est un syst\u00e8me cristallin cubique, groupe d'espace Fd3m. La temp\u00e9rature de calcination est de 400\u2103-550\u2103, la surface sp\u00e9cifique de l'\u00e9chantillon est diff\u00e9rente \u00e0 diff\u00e9rents temps de maintien ; \u00e0 partir de 550\u2103, la surface sp\u00e9cifique de l'\u00e9chantillon \u00e0 diff\u00e9rents temps de maintien diminue avec l'augmentation de la temp\u00e9rature de calcination ; \u00e0 la m\u00eame temp\u00e9rature de calcination, test La surface sp\u00e9cifique de l'\u00e9chantillon diminue avec l'ajout de calcination et de temps de maintien.<\/p>\n

2. Technologie d'impr\u00e9gnation \u00e0 l'acide nitrique dilu\u00e9<\/strong><\/p>\n

Inerte utilis\u00e9 billes d'alumine<\/a> sont nettoy\u00e9s \u00e0 l'eau \u2192 s\u00e9ch\u00e9s \u2192 impr\u00e9gn\u00e9s d'une solution d'acide nitrique dilu\u00e9 \u2192 nettoy\u00e9s \u00e0 l'eau \u2192 s\u00e9ch\u00e9s \u2192 calcin\u00e9s<\/p>\n

L'acide nitrique dilu\u00e9 est utilis\u00e9 comme activateur et comme liant, afin de d\u00e9sobstruer les pores et d'augmenter la surface sp\u00e9cifique. Diff\u00e9rentes concentrations d'acide nitrique dilu\u00e9, dur\u00e9es d'impr\u00e9gnation, temp\u00e9ratures de calcination et dur\u00e9es de conservation de la chaleur de calcination affectent la fonction et la disposition de l'\u00e9chantillon. R\u00e9sultats des tests : Chaque \u00e9chantillon constitue une phase cristalline : (Al2O3) (1.33) solution solide vide. Lorsque la concentration d'acide nitrique dilu\u00e9 est comprise entre 8% et 14%, la surface sp\u00e9cifique de l'\u00e9chantillon diminue au fur et \u00e0 mesure que la concentration d'acide nitrique est ajout\u00e9e ; de 14% \u00e0 20%, la surface sp\u00e9cifique de l'\u00e9chantillon augmente au fur et \u00e0 mesure que la concentration d'acide nitrique est ajout\u00e9e. De 5 \u00e0 10 minutes, la surface sp\u00e9cifique de l'\u00e9chantillon est ajout\u00e9e ; de 10 \u00e0 25 minutes, la surface sp\u00e9cifique de l'\u00e9chantillon est r\u00e9duite. La surface sp\u00e9cifique de l'\u00e9chantillon diminue avec l'augmentation de la temp\u00e9rature de calcination ; elle diminue avec l'ajout du temps de maintien.<\/p>\n

3. Technologie de r\u00e9g\u00e9n\u00e9ration de la d\u00e9fluoration<\/strong><\/p>\n

Apr\u00e8s le traitement de l'eau Boule d'alumine activ\u00e9e<\/a> a \u00e9t\u00e9 utilis\u00e9 pendant un certain temps, la surface devient brun jaun\u00e2tre et l'effet d'\u00e9limination du fluorure est manifestement r\u00e9duit. Il est alors n\u00e9cessaire de le r\u00e9g\u00e9n\u00e9rer \u00e0 temps pour restaurer la performance d'adsorption et l'utiliser \u00e0 nouveau. En g\u00e9n\u00e9ral, il est recommand\u00e9 de le r\u00e9g\u00e9n\u00e9rer une fois tous les six mois. La m\u00e9thode sp\u00e9cifique consiste \u00e0 configurer la solution de sulfate d'aluminium, \u00e0 placer le d\u00e9fluorure d'alumine activ\u00e9 satur\u00e9 d'absorption de fluor dans la solution de sulfate d'aluminium et \u00e0 le laisser tremper pendant environ 30 heures, puis \u00e0 verser la solution, \u00e0 retirer l'agent de d\u00e9fluorure d'alumine activ\u00e9 et \u00e0 le laver 3 \u00e0 5 fois avec de l'eau. La m\u00e9thode de nettoyage de l'agent d'\u00e9limination du fluorure d'alumine activ\u00e9 dans le filtre est la m\u00eame.<\/p>\n

4. Utilisations des produits utilis\u00e9s billes d'alumine inertes<\/a><\/strong><\/p>\n

Les billes d'alumine usag\u00e9es peuvent \u00eatre utilis\u00e9es pour le polissage miroir des mat\u00e9riaux r\u00e9fractaires fa\u00e7onn\u00e9s et non fa\u00e7onn\u00e9s, des liants r\u00e9fractaires coulables, des abrasifs r\u00e9sistants \u00e0 l'usure, des fibres r\u00e9fractaires de haute puret\u00e9, des c\u00e9ramiques sp\u00e9ciales, des c\u00e9ramiques \u00e9lectroniques, des c\u00e9ramiques d'agencement, de l'acier inoxydable, du granit et d'autres mat\u00e9riaux de d\u00e9coration. Les boulets d'alumine sp\u00e9ciaux peuvent \u00eatre utilis\u00e9s dans la structure de rev\u00eatement des fours \u00e0 ultra-haute temp\u00e9rature, dans les structures de rev\u00eatement r\u00e9sistant \u00e0 la corrosion dans l'industrie p\u00e9trochimique, la m\u00e9tallurgie et les m\u00e9taux non ferreux, l'industrie chimique et d'autres endroits. Les billes d'alumine r\u00e9g\u00e9n\u00e9r\u00e9es peuvent \u00eatre utilis\u00e9es comme catalyseurs, supports de catalyseurs, d\u00e9shydratants pour les gaz et les liquides, adsorbants pour la purification des gaz, agents de d\u00e9fluoration pour l'eau potable, \u00e9liminateurs de couleurs et d'odeurs pour les eaux us\u00e9es industrielles, etc.<\/p>","protected":false},"excerpt":{"rendered":"

what are the uses of used inert alumina balls? 1. Heat treatment technology The used inert alumina balls are cleaned with water \u2192 dried \u2192 calcined. Different calcination temperature and different holding time affect the function, crystal phase layout and microscopic layout of the sample. Test results: Each sample constitutes two crystal phases: (Al2O3)(1.33) void […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","site-sidebar-layout":"default","site-content-layout":"default","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":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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