{"id":3764,"date":"2025-12-19T15:10:28","date_gmt":"2025-12-19T07:10:28","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=3764"},"modified":"2025-12-19T15:10:30","modified_gmt":"2025-12-19T07:10:30","slug":"why-is-calcium-carbonate-the-star-of-inorganic-powders","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/fr\/why-is-calcium-carbonate-the-star-of-inorganic-powders\/","title":{"rendered":"Pourquoi le carbonate de calcium est-il la \u00ab star \u00bb des poudres inorganiques ?"},"content":{"rendered":"<p>Au sein de la famille de <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/machines\/\">poudre inorganique<\/a> Parmi les mat\u00e9riaux, le carbonate de calcium (CaCO\u2083) est sans conteste un mat\u00e9riau de premier plan. Compos\u00e9 de calcium, de carbone et d&#039;oxyg\u00e8ne, il est pr\u00e9sent en abondance dans la nature sous forme de calcaire, de marbre et de calcite. Il peut \u00e9galement \u00eatre produit \u00e0 grande \u00e9chelle par synth\u00e8se industrielle. Gr\u00e2ce \u00e0 son abondance, son faible co\u00fbt, ses performances modulables et son caract\u00e8re \u00e9cologique, le carbonate de calcium s&#039;est impos\u00e9 dans de nombreux secteurs industriels \u2013 notamment les plastiques, la papeterie, les rev\u00eatements, le caoutchouc, l&#039;agroalimentaire et la pharmacie \u2013 devenant ainsi un mat\u00e9riau de base indispensable \u00e0 la production industrielle moderne.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Classification et caract\u00e9ristiques principales de la poudre inorganique de carbonate de calcium<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"518\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/10\/calcium-carbonate-2.webp\" alt=\"carbonate de calcium\" class=\"wp-image-3592\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/10\/calcium-carbonate-2.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/10\/calcium-carbonate-2-300x194.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/10\/calcium-carbonate-2-768x497.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/10\/calcium-carbonate-2-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">carbonate de calcium<\/figcaption><\/figure>\n\n\n\n<p>En fonction des diff\u00e9rences de m\u00e9thodes de production et de caract\u00e9ristiques structurelles, le carbonate de calcium est g\u00e9n\u00e9ralement class\u00e9 en trois grandes cat\u00e9gories\u00a0: le carbonate de calcium broy\u00e9 (GCC), le carbonate de calcium pr\u00e9cipit\u00e9 (PCC) et le nanocarbonate de calcium (NPCC). Chaque type pr\u00e9sente des caract\u00e9ristiques de performance distinctes et convient \u00e0 des applications sp\u00e9cifiques.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Caract\u00e9ristiques de classification et de pr\u00e9paration<\/h3>\n\n\n\n<p><strong><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/astra-portfolio\/high-value-gcc-ground-calcium-carbonate-production-line-in-india\/\">Carbonate de calcium moulu (GCC)<\/a><\/strong>Le carbonate de calcium lourd (CCL), \u00e9galement appel\u00e9 carbonate de calcium aqueux, est produit par des proc\u00e9d\u00e9s physiques tels que le concassage, le broyage et le classement de min\u00e9raux naturels comme le calcaire et la calcite. Sa granulom\u00e9trie se situe g\u00e9n\u00e9ralement entre 1 et 100 \u00b5m. Le CCL conserve la structure cristalline naturelle du min\u00e9ral et se caract\u00e9rise par un co\u00fbt extr\u00eamement bas et une capacit\u00e9 de production \u00e9lev\u00e9e.<\/p>\n\n\n\n<p><strong>Carbonate de calcium pr\u00e9cipit\u00e9 (PCC)<\/strong> Le PCC est produit par synth\u00e8se chimique. Le calcaire est calcin\u00e9, hydrat\u00e9 puis carbonat\u00e9 pour former du PCC. Sa granulom\u00e9trie se situe g\u00e9n\u00e9ralement entre 0,5 et 10 \u03bcm. Le PCC pr\u00e9sente diverses morphologies cristallines \u2014 fusiformes, cubiques et aciculaires \u2014 et ses propri\u00e9t\u00e9s peuvent \u00eatre ajust\u00e9es gr\u00e2ce \u00e0 un contr\u00f4le pr\u00e9cis du proc\u00e9d\u00e9.<\/p>\n\n\n\n<p><strong>Carbonate de calcium nanom\u00e9trique (NPCC)<\/strong> Le terme \u00ab nano-carbonate de calcium \u00bb d\u00e9signe du carbonate de calcium ultrafin dont la taille des particules est inf\u00e9rieure \u00e0 1 \u03bcm. Sa synth\u00e8se chimique et ses techniques de modification de surface sont extr\u00eamement pr\u00e9cises. Gr\u00e2ce \u00e0 sa grande surface sp\u00e9cifique et aux effets li\u00e9s \u00e0 sa taille, le nano-carbonate de calcium pr\u00e9sente des performances nettement sup\u00e9rieures \u00e0 celles du carbonate de calcium conventionnel.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Propri\u00e9t\u00e9s physiques et chimiques fondamentales<\/h3>\n\n\n\n<p>Les propri\u00e9t\u00e9s fondamentales du carbonate de calcium sont \u00e9troitement li\u00e9es \u00e0 sa structure. Sur le plan physique, il pr\u00e9sente une blancheur \u00e9lev\u00e9e (les qualit\u00e9s sup\u00e9rieures peuvent d\u00e9passer 95%) et un indice de r\u00e9fraction mod\u00e9r\u00e9, ce qui en fait une charge blanche id\u00e9ale. Avec une duret\u00e9 Mohs d&#039;environ 3, il minimise l&#039;usure des \u00e9quipements de transformation.<\/p>\n\n\n\n<p>Chimiquement, le carbonate de calcium pr\u00e9sente une excellente stabilit\u00e9. Dans des conditions normales, il ne r\u00e9agit pas violemment avec la plupart des acides et des bases et ne se dissout que dans les acides forts comme l&#039;acide chlorhydrique. Il poss\u00e8de \u00e9galement une bonne capacit\u00e9 d&#039;absorption et de dispersibilit\u00e9 des huiles. Gr\u00e2ce \u00e0 une modification de surface, il peut pr\u00e9senter une excellente compatibilit\u00e9 avec les mati\u00e8res organiques. De plus, le carbonate de calcium est non toxique, inodore et non irritant, ce qui permet son utilisation en toute s\u00e9curit\u00e9 dans des secteurs hautement r\u00e9glement\u00e9s tels que l&#039;agroalimentaire et l&#039;industrie pharmaceutique.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Valeur d&#039;application de la poudre inorganique de carbonate de calcium dans les industries cl\u00e9s<\/h2>\n\n\n\n<p>Le r\u00f4le du carbonate de calcium a depuis longtemps d\u00e9pass\u00e9 le concept traditionnel de simple \u00ab remplissage \u00bb. Dans de nombreuses applications, il permet non seulement de r\u00e9duire les co\u00fbts, mais aussi d&#039;am\u00e9liorer consid\u00e9rablement les performances des mat\u00e9riaux, en agissant comme un lien essentiel entre les min\u00e9raux en poudre inorganiques et les mat\u00e9riaux organiques.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Modification des plastiques\u00a0: le champion du rapport co\u00fbt-performance<\/h3>\n\n\n\n<p>Le carbonate de calcium est la charge en poudre inorganique la plus utilis\u00e9e dans l&#039;industrie des plastiques, notamment dans la modification des plastiques \u00e0 usage g\u00e9n\u00e9ral tels que le poly\u00e9thyl\u00e8ne (PE), le polypropyl\u00e8ne (PP) et le polychlorure de vinyle (PVC).<\/p>\n\n\n\n<p>Le poly\u00e9thyl\u00e8ne non modifi\u00e9 pr\u00e9sente g\u00e9n\u00e9ralement une rigidit\u00e9 insuffisante et une faible r\u00e9sistance \u00e0 la chaleur. L&#039;incorporation de carbonate de calcium permet de r\u00e9duire les co\u00fbts de mat\u00e9riau de 10 \u00e0 30 % (10 \u00e0 300 TP3T), tout en am\u00e9liorant significativement la duret\u00e9, la stabilit\u00e9 dimensionnelle et la rigidit\u00e9. La modification de surface du carbonate de calcium par des agents de couplage tels que les titanates ou les silanes conf\u00e8re \u00e0 sa surface un caract\u00e8re hydrophobe. Ceci favorise une forte liaison interfaciale avec les cha\u00eenes mol\u00e9culaires du PE et emp\u00eache la s\u00e9paration de phases. De ce fait, la r\u00e9sistance \u00e0 la traction peut augmenter de plus de 40 % (10 \u00e0 300 TP3T) et la r\u00e9sistance aux chocs de plus de 50 % (10 \u00e0 300 TP3T).<\/p>\n\n\n\n<p>En pratique, le poly\u00e9thyl\u00e8ne modifi\u00e9 au carbonate de calcium est largement utilis\u00e9 dans les films agricoles (pour am\u00e9liorer la rigidit\u00e9 et la r\u00e9sistance au vieillissement), les tuyaux (pour am\u00e9liorer la r\u00e9sistance au fluage) et les bo\u00eetiers d&#039;appareils \u00e9lectrom\u00e9nagers (pour accro\u00eetre la r\u00e9sistance aux chocs). Il est v\u00e9ritablement devenu le champion du rapport co\u00fbt-efficacit\u00e9 en mati\u00e8re de modification des plastiques.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Industrie papeti\u00e8re\u00a0: le \u00ab\u00a0facteur invisible\u00a0\u00bb de la qualit\u00e9 du papier<\/h3>\n\n\n\n<p>La fabrication du papier est un autre domaine d&#039;application important du carbonate de calcium. Qu&#039;il soit utilis\u00e9 comme charge ou comme pigment de couchage, il joue un r\u00f4le d\u00e9terminant dans la qualit\u00e9 du papier.<\/p>\n\n\n\n<p>Utilis\u00e9 comme charge, le carbonate de calcium comble les vides entre les fibres, am\u00e9liorant ainsi la blancheur, l&#039;opacit\u00e9 et l&#039;imprimabilit\u00e9 du papier, tout en r\u00e9duisant la consommation de p\u00e2te \u00e0 papier et en pr\u00e9servant les ressources foresti\u00e8res. Un carbonate de calcium de haute qualit\u00e9 pour la fabrication du papier exige un contr\u00f4le rigoureux de la granulom\u00e9trie. Par exemple, le carbonate de calcium utilis\u00e9 dans les machines de couchage \u00e0 grande vitesse doit contenir des particules \u2265 5 \u03bcm afin de pr\u00e9venir l&#039;usure des lames, tandis que les particules \u2264 1 \u03bcm doivent g\u00e9n\u00e9ralement \u00eatre maintenues en dessous de la norme 30% pour minimiser les pertes de charge.<\/p>\n\n\n\n<p>En tant que pigment de couchage, le carbonate de calcium \u00e0 granulom\u00e9trie \u00e9troite am\u00e9liore la rh\u00e9ologie du couchage, favorisant une meilleure synergie entre les pigments et les liants. Ceci renforce la r\u00e9sistance de surface et les propri\u00e9t\u00e9s optiques. De plus, les caract\u00e9ristiques de charge \u00e9lectrique du carbonate de calcium sont essentielles \u00e0 la fabrication du papier. La densit\u00e9 de charge varie selon le degr\u00e9 de broyage et influe directement sur la dispersion des charges, l&#039;efficacit\u00e9 des additifs et la circulation de l&#039;eau blanche. Le carbonate de calcium de haute puret\u00e9 (\u2265 98%) est particuli\u00e8rement important pour les papiers sp\u00e9ciaux tels que le papier d&#039;emballage alimentaire et le papier d&#039;enregistrement thermique.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Rev\u00eatements et caoutchouc\u00a0: un \u00ab\u00a0additif fonctionnel essentiel\u00a0\u00bb<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/12\/Calcium-Carbonate-in-Coatings-1.webp\" alt=\"Carbonate de calcium dans les rev\u00eatements 1\" class=\"wp-image-3765\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/12\/Calcium-Carbonate-in-Coatings-1.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/12\/Calcium-Carbonate-in-Coatings-1-300x200.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/12\/Calcium-Carbonate-in-Coatings-1-768x512.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/12\/Calcium-Carbonate-in-Coatings-1-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p>Dans l&#039;industrie des rev\u00eatements, le carbonate de calcium est utilis\u00e9 comme pigment de charge. Il am\u00e9liore le nivellement, le pouvoir couvrant et la r\u00e9sistance aux intemp\u00e9ries, tout en r\u00e9duisant la consommation de pigments co\u00fbteux tels que le dioxyde de titane. Par exemple, le carbonate de calcium ultrafin dans les peintures latex permet d&#039;obtenir des rev\u00eatements plus lisses et plus fins et am\u00e9liore la r\u00e9sistance au frottement. Dans les rev\u00eatements anticorrosion industriels, sa stabilit\u00e9 chimique renforce la r\u00e9sistance aux acides et aux bases.<\/p>\n\n\n\n<p>Dans l&#039;industrie du caoutchouc, le carbonate de calcium est une charge de renforcement importante. Il peut remplacer partiellement le noir de carbone, am\u00e9liorant ainsi la r\u00e9sistance \u00e0 la traction, \u00e0 la d\u00e9chirure et \u00e0 l&#039;abrasion, tout en facilitant la mise en \u0153uvre. Pour les produits en caoutchouc tels que les pneumatiques et les joints d&#039;\u00e9tanch\u00e9it\u00e9, le carbonate de calcium modifi\u00e9 permet non seulement de r\u00e9duire les co\u00fbts de production, mais aussi d&#039;att\u00e9nuer l&#039;impact environnemental associ\u00e9 au noir de carbone, s&#039;inscrivant ainsi dans les tendances de la production durable.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Technologies de modification et tendances de d\u00e9veloppement du carbonate de calcium<\/h2>\n\n\n\n<p>Face \u00e0 la demande croissante de performances accrues des industries en aval, le carbonate de calcium non modifi\u00e9 ne suffit plus. La modification de surface est devenue essentielle pour exploiter pleinement son potentiel. Parall\u00e8lement, le d\u00e9veloppement de mat\u00e9riaux \u00e9cologiques, fonctionnels et composites repr\u00e9sente l&#039;avenir de l&#039;industrie.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Technologies de modification courantes <\/h3>\n\n\n\n<p>La modification de surface vise \u00e0 modifier les propri\u00e9t\u00e9s superficielles du carbonate de calcium. Elle est r\u00e9alis\u00e9e par des m\u00e9thodes physiques ou chimiques. L&#039;objectif est d&#039;am\u00e9liorer sa compatibilit\u00e9 avec les matrices organiques.<\/p>\n\n\n\n<p>La modification des agents de couplage est l&#039;approche la plus courante. Les agents de couplage \u00e0 base de titanate sont fr\u00e9quemment utilis\u00e9s dans les plastiques pour am\u00e9liorer leurs propri\u00e9t\u00e9s m\u00e9caniques. Les agents de couplage \u00e0 base de silane sont largement employ\u00e9s dans les rev\u00eatements pour am\u00e9liorer leur r\u00e9sistance aux intemp\u00e9ries. Les agents de couplage \u00e0 base d&#039;aluminate sont \u00e9conomiques et adapt\u00e9s aux applications du caoutchouc.<\/p>\n\n\n\n<p>D&#039;autres m\u00e9thodes sont \u00e9galement utilis\u00e9es. La modification par tensioactifs, comme le traitement \u00e0 l&#039;acide st\u00e9arique, est \u00e9conomique et convient aux produits de milieu et bas de gamme. Les m\u00e9thodes de rev\u00eatement polym\u00e8re, telles que l&#039;encapsulation dans du poly\u00e9thyl\u00e8ne, sont employ\u00e9es dans les applications plastiques haut de gamme.<\/p>\n\n\n\n<p>Apr\u00e8s modification, le carbonate de calcium pr\u00e9sente une dispersion nettement am\u00e9lior\u00e9e. La r\u00e9sistance de l&#039;adh\u00e9rence interfaciale est consid\u00e9rablement accrue. L&#039;agglom\u00e9ration est efficacement r\u00e9duite. Ses effets de renforcement et de durcissement sont pleinement exploit\u00e9s.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tendances de d\u00e9veloppement futures<\/h3>\n\n\n\n<p>Les d\u00e9veloppements futurs seront ax\u00e9s sur la haute performance, la faible consommation d&#039;\u00e9nergie et la durabilit\u00e9 environnementale.<\/p>\n\n\n\n<p>Premi\u00e8rement, la personnalisation fonctionnelle continuera de progresser. En contr\u00f4lant la taille des particules, leur morphologie et leur chimie de surface, il sera possible de d\u00e9velopper du carbonate de calcium aux propri\u00e9t\u00e9s antibact\u00e9riennes, ignifuges, thermoconductrices ou \u00e9lectriquement conductrices.<\/p>\n\n\n\n<p>Deuxi\u00e8mement, le d\u00e9veloppement des composites prendra une importance accrue. Le carbonate de calcium sera associ\u00e9 \u00e0 des charges telles que des nanotubes de carbone, des fibres de verre ou de la poudre de bois. Des syst\u00e8mes composites multicomposants seront cr\u00e9\u00e9s afin d&#039;obtenir des effets synergiques.<\/p>\n\n\n\n<p>Troisi\u00e8mement, la production verte va s&#039;acc\u00e9l\u00e9rer. Des agents de couplage biosourc\u00e9s et des modificateurs biod\u00e9gradables seront mis au point. Les proc\u00e9d\u00e9s de production seront optimis\u00e9s afin de r\u00e9duire la consommation d&#039;\u00e9nergie et les \u00e9missions.<\/p>\n\n\n\n<p>Enfin, la mise \u00e0 niveau intelligente jouera un r\u00f4le cl\u00e9. La simulation informatique permettra de pr\u00e9dire les effets des modifications. Les param\u00e8tres du processus seront contr\u00f4l\u00e9s avec pr\u00e9cision. La stabilit\u00e9 de la qualit\u00e9 du produit sera ainsi am\u00e9lior\u00e9e.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/fr\/contact\/\">Conclusion<\/a><\/h2>\n\n\n\n<p>Du min\u00e9ral naturel aux mat\u00e9riaux industriels essentiels, le carbonate de calcium, sous forme de poudre inorganique, a d\u00e9montr\u00e9 une remarquable polyvalence. Il constitue un modificateur \u00e9conomique pour les plastiques et un mat\u00e9riau s\u00fbr et fiable pour les applications alimentaires et pharmaceutiques.<\/p>\n\n\n\n<p>Gr\u00e2ce aux progr\u00e8s constants des technologies de modification et \u00e0 l&#039;\u00e9largissement de ses domaines d&#039;application, le carbonate de calcium continuera d&#039;\u00e9voluer. Il jouera un r\u00f4le de plus en plus important dans la production \u00e9cologique et les mat\u00e9riaux de pointe, contribuant ainsi durablement au d\u00e9veloppement industriel de haute qualit\u00e9.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized is-style-rounded\"><img decoding=\"async\" width=\"721\" height=\"721\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen.webp\" alt=\"Emily Chen\" class=\"wp-image-3708\" style=\"width:150px;height:150px\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen.webp 721w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-300x300.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-150x150.webp 150w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/11\/Emily-Chen-12x12.webp 12w\" sizes=\"(max-width: 721px) 100vw, 721px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote has-text-align-center is-style-large is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u00ab Merci de votre lecture. J\u2019esp\u00e8re que cet article vous sera utile. N\u2019h\u00e9sitez pas \u00e0 laisser un commentaire ci-dessous. Pour toute question, vous pouvez \u00e9galement contacter le service client en ligne de Zelda. \u00bb<\/p>\n<cite>                                                                                                                                                                             \u2014 Publi\u00e9 par <a href=\"https:\/\/www.linkedin.com\/company\/76603359\/admin\/dashboard\/\">Emily Chen<\/a><\/cite><\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity is-style-default\"\/>\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\/3764#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\/3764#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>\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=\"Ligne de production de broyeurs \u00e0 boulets et de classificateurs pour carbonate de calcium en Inde - EPIC Powder Tech\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/nTl3U0ixPsY?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>","protected":false},"excerpt":{"rendered":"<p>Parmi les mat\u00e9riaux inorganiques en poudre, le carbonate de calcium (CaCO\u2083) est sans conteste un mat\u00e9riau de premier plan. Compos\u00e9 de calcium, de carbone et d&#039;oxyg\u00e8ne, il est largement pr\u00e9sent dans la nature sous forme de calcaire, de marbre et de calcite. Il peut \u00e9galement \u00eatre produit \u00e0 grande \u00e9chelle par synth\u00e8se industrielle. Gr\u00e2ce \u00e0 ses nombreuses propri\u00e9t\u00e9s [\u2026]<\/p>","protected":false},"author":1,"featured_media":3592,"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 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":[1],"tags":[],"class_list":["post-3764","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ultrafine-air-classifier"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Why is Calcium Carbonate the &quot;Star&quot; 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