{"id":3008,"date":"2025-09-25T07:17:12","date_gmt":"2025-09-25T07:17:12","guid":{"rendered":"https:\/\/cpxzx.com\/?post_type=product&#038;p=3008"},"modified":"2025-09-25T07:17:12","modified_gmt":"2025-09-25T07:17:12","slug":"tamis-moleculaire-3a","status":"publish","type":"product","link":"https:\/\/cpxzx.com\/fr\/produit\/tamis-moleculaire-3a\/","title":{"rendered":"3A Tamis mol\u00e9culaire"},"content":{"rendered":"<p><strong>3A tamis mol\u00e9culaire<\/strong>\u00e9galement connu sous le nom de tamis mol\u00e9culaire \u00e0 base de potassium, est un adsorbant cristallin d'aluminosilicate de m\u00e9tal alcalin avec des micropores uniformes d'environ 3 angstr\u00f6ms (0,3 nm).<br \/>\nIl est produit en \u00e9changeant partiellement les ions sodium du tamis mol\u00e9culaire 4A avec des ions potassium. Gr\u00e2ce \u00e0 sa distribution pr\u00e9cise de la taille des pores, le tamis mol\u00e9culaire 3A adsorbe s\u00e9lectivement les mol\u00e9cules<br \/>\nplus petites que 3 \u00c5 (notamment l'eau) tout en excluant les mol\u00e9cules plus grosses. Cette d\u00e9shydratation s\u00e9lective est id\u00e9ale pour les applications de s\u00e9chage o\u00f9 l'eau doit \u00eatre \u00e9limin\u00e9e sans \u00eatre adsorb\u00e9e.<br \/>\ndes hydrocarbures ou des mol\u00e9cules organiques plus importantes.<\/p>\n<h2>Caract\u00e9ristiques<\/h2>\n<ul>\n<li>Taille des pores d'environ 3 \u00c5, s\u00e9lectif pour les mol\u00e9cules d'eau uniquement.<\/li>\n<li>Capacit\u00e9 d'adsorption \u00e9lev\u00e9e et cin\u00e9tique d'adsorption rapide.<\/li>\n<li>Excellente r\u00e9g\u00e9n\u00e9rabilit\u00e9 avec de faibles besoins en \u00e9nergie.<\/li>\n<li>Bonne stabilit\u00e9 chimique et thermique.<\/li>\n<li>La haute s\u00e9lectivit\u00e9 emp\u00eache la co-adsorption des hydrocarbures et des mol\u00e9cules plus grosses.<\/li>\n<\/ul>\n<h2>Sp\u00e9cifications (propri\u00e9t\u00e9s typiques)<\/h2>\n<table class=\"spec-table\" border=\"1\" cellspacing=\"0\" cellpadding=\"6\">\n<thead>\n<tr>\n<th>Propri\u00e9t\u00e9<\/th>\n<th>Valeur typique<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Diam\u00e8tre des pores<\/td>\n<td>3 \u00c5<\/td>\n<\/tr>\n<tr>\n<td>Rapport SiO\u2082\/Al\u2082O\u2083<\/td>\n<td>\u2248 2.0<\/td>\n<\/tr>\n<tr>\n<td>Densit\u00e9 apparente<\/td>\n<td>0,60 - 0,68 g\/mL<\/td>\n<\/tr>\n<tr>\n<td>R\u00e9sistance \u00e0 l'\u00e9crasement<\/td>\n<td>\u2265 80 N\/pi\u00e8ce (pour 1,6-2,5 mm)<\/td>\n<\/tr>\n<tr>\n<td>Perte \u00e0 l'allumage<\/td>\n<td>\u2264 1.5%<\/td>\n<\/tr>\n<tr>\n<td>Adsorption statique de l'eau<\/td>\n<td>\u2265 20% (25\u00b0C, RH 75%)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Avantages<\/h2>\n<ul>\n<li>Adsorption d'eau hautement s\u00e9lective assurant une d\u00e9shydratation efficace.<\/li>\n<li>Emp\u00eache la polym\u00e9risation ou la d\u00e9gradation des hydrocarbures insatur\u00e9s pendant le s\u00e9chage.<\/li>\n<li>Longue dur\u00e9e de vie avec de nombreux cycles de r\u00e9g\u00e9n\u00e9ration.<\/li>\n<li>Large application dans les secteurs de la p\u00e9trochimie, du traitement du gaz et de la chimie fine.<\/li>\n<li>D\u00e9shydratant \u00e9conomique par rapport \u00e0 de nombreux autres agents de s\u00e9chage.<\/li>\n<\/ul>\n<h2>Applications<\/h2>\n<ul>\n<li>S\u00e9chage d'hydrocarbures insatur\u00e9s tels que l'\u00e9thyl\u00e8ne, le propyl\u00e8ne et le butadi\u00e8ne.<\/li>\n<li>D\u00e9shydratation des solvants polaires, y compris le m\u00e9thanol et l'\u00e9thanol.<\/li>\n<li>D\u00e9shydratation du gaz naturel et du gaz de raffinerie.<\/li>\n<li>S\u00e9chage des r\u00e9frig\u00e9rants (par exemple, R22, R134a).<\/li>\n<li>\u00c9tapes de d\u00e9shydratation dans la fabrication de produits pharmaceutiques et de produits chimiques fins.<\/li>\n<\/ul>\n<h2>Emballage<\/h2>\n<ul>\n<li>25 kg sac scell\u00e9 \/ carton<\/li>\n<li>Tambour en fer de 150 kg<\/li>\n<li>Sac jumbo de 500-1000 kg (FIBC)<\/li>\n<li>Emballage personnalis\u00e9 disponible sur demande<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Les tamis mol\u00e9culaires 3A se caract\u00e9risent par une capacit\u00e9 d'adsorption \u00e9lev\u00e9e, une vitesse d'adsorption rapide et d'excellentes performances de r\u00e9g\u00e9n\u00e9ration. Ils peuvent \u00eatre r\u00e9g\u00e9n\u00e9r\u00e9s \u00e0 plusieurs reprises par chauffage ou purge avec du gaz sec, ce qui garantit une efficacit\u00e9 \u00e0 long terme et des \u00e9conomies dans les applications industrielles.<\/p>","protected":false},"featured_media":3095,"parent":0,"template":"","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"default","_kad_post_title":"","_kad_post_layout":"default","_kad_post_sidebar_id":"","_kad_post_content_style":"default","_kad_post_vertical_padding":"default","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"pcategory":[28],"ptag":[],"class_list":["post-3008","product","type-product","status-publish","has-post-thumbnail","hentry","pcategory-molecular-sieves"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>3A Molecular Sieve<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cpxzx.com\/fr\/produit\/tamis-moleculaire-3a\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"3A Molecular Sieve\" \/>\n<meta property=\"og:description\" content=\"3A molecular sieves feature high adsorption capacity, fast adsorption rate, and excellent regeneration performance. 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