{"id":3191,"date":"2025-05-22T09:57:55","date_gmt":"2025-05-22T01:57:55","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=3191"},"modified":"2025-05-22T09:57:58","modified_gmt":"2025-05-22T01:57:58","slug":"what-is-high-purity-calcium-carbonate","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/fr\/what-is-high-purity-calcium-carbonate\/","title":{"rendered":"Qu&#039;est-ce que le carbonate de calcium de haute puret\u00e9 ?"},"content":{"rendered":"<p>Qu&#039;est-ce que la haute puret\u00e9 <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/ultrafine-powder-dry-grinding\/\">carbonate de calcium<\/a>Dans la fabrication traditionnelle, ce concept reste flou. Par exemple, avec une faible teneur en impuret\u00e9s de fer et du carbonate de calcium 98%, certains pourraient le qualifier de carbonate de calcium de haute puret\u00e9. Mais dans les applications de mat\u00e9riaux haut de gamme, ce produit est loin de r\u00e9pondre aux normes de haute puret\u00e9.<a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/machines\/ball-mill\/\"> Carbonate de calcium de haute puret\u00e9<\/a> Il est largement utilis\u00e9 dans les composants \u00e9lectroniques, les condensateurs, les produits pharmaceutiques, les compl\u00e9ments alimentaires, les cosm\u00e9tiques, la c\u00e9ramique, le verre optique, les mat\u00e9riaux fluorescents et les r\u00e9actifs de laboratoire. Remarque\u00a0: Le carbonate de calcium de haute puret\u00e9 dont il est question ici d\u00e9signe le calcium l\u00e9ger et le nanocalcium. Leur granulom\u00e9trie varie de quelques dizaines de nanom\u00e8tres \u00e0 deux microns, et leur forme est sph\u00e9rique ou quasi sph\u00e9rique.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"750\" height=\"502\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/05\/High-purity-Calcium-Carbonate.webp\" alt=\"Carbonate de calcium de haute puret\u00e9\" class=\"wp-image-3192\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/05\/High-purity-Calcium-Carbonate.webp 750w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/05\/High-purity-Calcium-Carbonate-300x201.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/05\/High-purity-Calcium-Carbonate-18x12.webp 18w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00e9finition et classification de la haute puret\u00e9 <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/astra-portfolio\/grinding-and-classifying-system-for-the-production-of-calcium-carbonate\/\">carbonate de calcium<\/a><\/h2>\n\n\n\n<p>Prenons l\u2019exemple de la classification des carbonates de calcium de haute puret\u00e9 par une entreprise :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Le carbonate de calcium 93.0% est de qualit\u00e9 industrielle<\/li>\n\n\n\n<li>96.0% est une nuance d&#039;acier sp\u00e9ciale<\/li>\n\n\n\n<li>98.0% est une qualit\u00e9 c\u00e9ramique<\/li>\n\n\n\n<li>99.0% est de qualit\u00e9 fluorescente<\/li>\n\n\n\n<li>99.8% est de qualit\u00e9 optique<\/li>\n\n\n\n<li>99.99% est de haute puret\u00e9.<\/li>\n<\/ul>\n\n\n\n<p>Selon les normes de puret\u00e9 chimique, le carbonate de calcium peut \u00e9galement \u00eatre class\u00e9 en :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>99,8% (GR) puret\u00e9 sup\u00e9rieure<\/li>\n\n\n\n<li>Puret\u00e9 analytique 99,7% (AR)<\/li>\n\n\n\n<li>Puret\u00e9 chimique \u226599,5% (CP).<\/li>\n<\/ul>\n\n\n\n<p><br>De plus, les exigences de puret\u00e9 varient dans les applications pratiques, telles que :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>99.0% pour les mat\u00e9riaux pharmaceutiques<\/li>\n\n\n\n<li>99.5% pour les mat\u00e9riaux \u00e9lectroniques<\/li>\n\n\n\n<li>99.3% pour les r\u00e9actifs chimiques<\/li>\n\n\n\n<li>99.99% pour la synth\u00e8se de sels de calcium de haute puret\u00e9.<\/li>\n<\/ul>\n\n\n\n<p>Pour obtenir un carbonate de calcium d&#039;une grande puret\u00e9, il est crucial de contr\u00f4ler les impuret\u00e9s, car elles affectent directement la puret\u00e9 et les performances de l&#039;application. L&#039;analyse de la composition du calcaire montre\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Silice (SiO\u2082) 0,07-1%<\/li>\n\n\n\n<li>Alumine (Al\u2082O\u2083) 0,02-1%<\/li>\n\n\n\n<li>Oxyde de fer (Fe\u2082O\u2083) 0,03-1%<\/li>\n\n\n\n<li>Oxyde de calcium (CaO) 48-55,22%<\/li>\n\n\n\n<li>Oxyde de magn\u00e9sium (MgO) 0,08-1%,<\/li>\n<\/ul>\n\n\n\n<p>Ainsi que diverses impuret\u00e9s m\u00e9talliques comme le plomb, le baryum et le strontium.<br>De plus, pendant le processus de pr\u00e9paration du carbonate de calcium, les additifs chimiques et les \u00e9quipements de traitement peuvent introduire des impuret\u00e9s suppl\u00e9mentaires, qui doivent \u00eatre minimis\u00e9es.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"750\" height=\"750\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/air-jet-mill-5.webp\" alt=\"broyeur \u00e0 jet d&#039;air 5\" class=\"wp-image-3121\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/air-jet-mill-5.webp 750w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/air-jet-mill-5-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/air-jet-mill-5-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/04\/air-jet-mill-5-12x12.webp 12w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><figcaption class=\"wp-element-caption\">broyeur \u00e0 jet d&#039;air 5<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Application du carbonate de calcium de haute puret\u00e9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">R\u00e9actifs et mat\u00e9riaux<\/h3>\n\n\n\n<p>Les r\u00e9actifs \u00e0 base de carbonates de calcium de haute puret\u00e9 sont utilis\u00e9s pour la d\u00e9termination des halog\u00e8nes dans les r\u00e9actions de compos\u00e9s organiques, l&#039;analyse de l&#039;eau, la d\u00e9termination du phosphore et la d\u00e9composition des silicates avec du chlorure d&#039;ammonium. Ils sont \u00e9galement utilis\u00e9s pour pr\u00e9parer des solutions de chlorure de calcium pour le titrage des solutions savonneuses et pour la culture de cellules d&#039;insectes, entre autres applications.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Puret\u00e9 sup\u00e9rieure (99,8%), \u00e9galement appel\u00e9 r\u00e9actif de premi\u00e8re qualit\u00e9 ou r\u00e9actif garanti, il offre une puret\u00e9 optimale et une teneur en impuret\u00e9s minimale, ce qui le rend id\u00e9al pour les analyses critiques et pr\u00e9cises et la recherche scientifique.<\/li>\n\n\n\n<li>La puret\u00e9 analytique (99,7%) est \u00e9galement appel\u00e9e r\u00e9actif de deuxi\u00e8me qualit\u00e9. Sa puret\u00e9 est l\u00e9g\u00e8rement inf\u00e9rieure \u00e0 celle d&#039;un r\u00e9actif de qualit\u00e9 sup\u00e9rieure et convient aux analyses importantes et \u00e0 la recherche g\u00e9n\u00e9rale.<\/li>\n\n\n\n<li>La puret\u00e9 chimique (\u2265 99,51 TP3T) est \u00e9galement appel\u00e9e r\u00e9actif de troisi\u00e8me qualit\u00e9. Sa puret\u00e9 est nettement inf\u00e9rieure \u00e0 la puret\u00e9 analytique et est utilis\u00e9e pour les analyses g\u00e9n\u00e9rales dans l&#039;industrie, l&#039;exploitation mini\u00e8re et les \u00e9coles.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Mat\u00e9riaux \u00e9lectroniques<\/h3>\n\n\n\n<p>Le carbonate de calcium de qualit\u00e9 \u00e9lectronique courante se divise en deux cat\u00e9gories\u00a0: qualit\u00e9 sup\u00e9rieure (puret\u00e9 99,51\u00a0TP3T) et premi\u00e8re qualit\u00e9 (puret\u00e9 99,31\u00a0TP3T). Le carbonate de calcium de haute puret\u00e9 est utilis\u00e9 comme charge dans les mat\u00e9riaux \u00e9lectroniques, contribuant \u00e0 r\u00e9duire la d\u00e9pendance de la constante di\u00e9lectrique \u00e0 la temp\u00e9rature, \u00e0 modifier le point de Curie, \u00e0 am\u00e9liorer la tenue en tension et \u00e0 renforcer les propri\u00e9t\u00e9s ferro\u00e9lectriques. Il peut \u00eatre utilis\u00e9 dans la protection limitant le courant, la d\u00e9magn\u00e9tisation, le d\u00e9marrage, les \u00e9l\u00e9ments chauffants (CTP), les condensateurs c\u00e9ramiques multicouches (MLCC), les composants micro-ondes et les composants pi\u00e9zo\u00e9lectriques\/pi\u00e9zor\u00e9sistifs. Il est \u00e9galement utilis\u00e9 comme affineur de grain pour le titanate de baryum dans les puces c\u00e9ramiques, dans les mat\u00e9riaux de condensateurs \u00e0 film fin et comme r\u00e9actifs \u00e9lectroniques.<br>Les recherches indiquent que lorsque la teneur en impuret\u00e9s du carbonate de calcium est r\u00e9duite \u00e0 0,01-10 ppm ou m\u00eame jusqu&#039;au niveau ppb, avec des impuret\u00e9s m\u00e9talliques inf\u00e9rieures \u00e0 1 ppb et des niveaux de poussi\u00e8re \u00e0 0-2 ppb, le carbonate de calcium convient au traitement des circuits int\u00e9gr\u00e9s de 0,35 \u00e0 0,8 micron.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Produits chimiques de haute puret\u00e9<\/h3>\n\n\n\n<p>Selon la litt\u00e9rature, le carbonate de calcium d&#039;une puret\u00e9 de 99,991 TP3T est largement utilis\u00e9 dans les mat\u00e9riaux monocristallins de fluorure de calcium optique de haute puret\u00e9, les mat\u00e9riaux fluorescents, les charges \u00e9lectroniques, les sels de calcium de haute puret\u00e9 et d&#039;autres mat\u00e9riaux de base. Parmi ces mat\u00e9riaux, les mat\u00e9riaux monocristallins de fluorure de calcium optique de haute puret\u00e9 (99,991 TP3T) sont synth\u00e9tis\u00e9s \u00e0 partir de carbonate de calcium de haute puret\u00e9 comme mati\u00e8re premi\u00e8re, et la puret\u00e9 des carbonates de calcium d\u00e9termine la puret\u00e9 du fluorure de calcium.<br>Outre le fluorure de calcium optique, le carbonate de calcium de haute puret\u00e9 est \u00e9galement utilis\u00e9 directement comme enrichisseur de calcium ou comme interm\u00e9diaire dans la production de sels de calcium de haute puret\u00e9, tels que le citrate de calcium. Dans ces applications, la teneur en impuret\u00e9s de m\u00e9taux lourds nocifs est une exigence particuli\u00e8rement critique, et les normes de puret\u00e9 n&#039;ont pas encore \u00e9t\u00e9 uniformis\u00e9es.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Mat\u00e9riaux optiques<\/h3>\n\n\n\n<p>Certaines entreprises classent le carbonate de calcium d&#039;une puret\u00e9 de 99,8% comme qualit\u00e9 optique, utilisable pour la pr\u00e9paration de verres optiques au n\u00e9odyme et de mat\u00e9riaux fluorescents. Sa teneur en impuret\u00e9s est extr\u00eamement faible. Par exemple, les donn\u00e9es produit d&#039;une entreprise indiquent\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sodium et potassium : 0,002%<\/li>\n\n\n\n<li>Magn\u00e9sium : 0,02%<\/li>\n\n\n\n<li>Sulfate : 0,01%<\/li>\n\n\n\n<li>Fer : 0,0005%<\/li>\n\n\n\n<li>Chlore : 0,01%, ce qui est bien inf\u00e9rieur au carbonate de calcium ordinaire.<\/li>\n<\/ul>\n\n\n\n<p>Outre les poudres de carbonate de calcium de haute puret\u00e9, les cristaux de spath d&#039;Islande (calcite transparente) pr\u00e9sentent une composition chimique pure. Leurs propri\u00e9t\u00e9s de bir\u00e9fringence et de polarisation sont remarquables, ce qui les rend adapt\u00e9s \u00e0 la fabrication de divers dispositifs polarisants, spectroscopiques et isolateurs optiques, avec d&#039;excellentes performances.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/about\/\">Conclusion<\/a><\/h2>\n\n\n\n<p>Le carbonate de calcium haute puret\u00e9 se positionne sur un march\u00e9 haut de gamme par rapport aux carbonates de calcium classiques. Il est utilis\u00e9 en plus petites quantit\u00e9s par application, son prix unitaire est plus \u00e9lev\u00e9 et ses proc\u00e9d\u00e9s de production sont plus complexes. Actuellement, les entreprises de ce secteur disposant de capacit\u00e9s de production plus r\u00e9duites sont moins nombreuses, et la fili\u00e8re industrielle est sensiblement diff\u00e9rente de celle de la poudre de calcium traditionnelle.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/contact\/\">Poudre \u00e9pique<\/a><\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"Broyeur \u00e0 jet d&#039;air \u00e0 vendre, broyeur \u00e0 jet pour carbure de silicium, poudre D97 13 microns, machines \u00e0 poudre EPIC\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/wAy3TuOHudE?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Epic Powder, plus de 20 ans d&#039;exp\u00e9rience dans l&#039;industrie des poudres ultrafines. Nous promouvons activement le d\u00e9veloppement futur des poudres ultrafines, en nous concentrant sur les proc\u00e9d\u00e9s de concassage, de broyage, de classification et de transformation. Contactez-nous pour une consultation gratuite et des solutions personnalis\u00e9es\u00a0! Notre \u00e9quipe d&#039;experts s&#039;engage \u00e0 vous fournir des produits et services de haute qualit\u00e9 pour optimiser la valeur de vos proc\u00e9d\u00e9s de traitement des poudres. Epic Powder\u00a0: votre expert de confiance en traitement des poudres\u00a0!<\/p>\n\n\n\n<div class=\"wp-block-contact-form-7-contact-form-selector\">\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f16-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"16\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/fr\/wp-json\/wp\/v2\/posts\/3191#wpcf7-f16-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/fr\/wp-json\/wp\/v2\/posts\/3191#wpcf7-f16-o1\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"16\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.3\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f16-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<div class=\"keen-form\">\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text wpcf7-validates-as-required\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Votre nom*\" value=\"\" type=\"text\" name=\"your-name\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-email\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-email wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-email\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Votre email*\" value=\"\" type=\"email\" name=\"your-email\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"pnone\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-tel wpcf7-validates-as-required wpcf7-text wpcf7-validates-as-tel\" aria-required=\"true\" aria-invalid=\"false\" placeholder=\"Votre Pnone ou Whatsapp*\" value=\"\" type=\"tel\" name=\"pnone\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div class=\"one-half last\">\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-subject\"><input size=\"40\" maxlength=\"400\" class=\"wpcf7-form-control wpcf7-text\" aria-invalid=\"false\" placeholder=\"Votre entreprise\" value=\"\" type=\"text\" name=\"your-subject\" \/><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><span class=\"wpcf7-form-control-wrap\" data-name=\"your-message\"><textarea cols=\"40\" rows=\"3\" maxlength=\"2000\" class=\"wpcf7-form-control wpcf7-textarea\" aria-invalid=\"false\" placeholder=\"Votre message\" name=\"your-message\"><\/textarea><\/span>\n\t\t<\/p>\n\t<\/div>\n\t<div>\n\t\t<p><input class=\"wpcf7-form-control wpcf7-submit has-spinner\" type=\"submit\" value=\"Soumettre\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.keen-form div{margin-bottom:5px;}\n.keen-form div p{margin-bottom:0px !important;}\n.one-half,.one-third {\n position: relative;\n margin-right: 4%;\n float: left;\n z-index: 99;\n}\n.one-half { width: 40%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\nwidth: 40%;\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 90%;\n margin-right: 0;\n }\n}\n<\/style><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"fr\"\/><\/form>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Qu&#039;est-ce que le carbonate de calcium de haute puret\u00e9\u00a0? Dans la fabrication traditionnelle, c&#039;est un concept flou. Par exemple, avec une faible teneur en impuret\u00e9s de fer et du carbonate de calcium 98%, certains le qualifient de carbonate de calcium de haute puret\u00e9. Mais dans les applications de mat\u00e9riaux haut de gamme, il est loin de r\u00e9pondre aux normes de haute puret\u00e9. Le carbonate de calcium de haute puret\u00e9 est largement utilis\u00e9 dans les composants \u00e9lectroniques, les condensateurs, les produits pharmaceutiques, l&#039;industrie alimentaire [\u2026]<\/p>","protected":false},"author":1,"featured_media":3192,"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":"","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":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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