{"id":3285,"date":"2025-06-16T14:07:54","date_gmt":"2025-06-16T06:07:54","guid":{"rendered":"https:\/\/calcium-carbonate.epic-powder.com\/?p=3285"},"modified":"2025-06-16T14:07:58","modified_gmt":"2025-06-16T06:07:58","slug":"what-is-the-difference-between-calcite-powder-and-marble-powder-when-used","status":"publish","type":"post","link":"https:\/\/calcium-carbonate.epic-powder.com\/pt\/what-is-the-difference-between-calcite-powder-and-marble-powder-when-used\/","title":{"rendered":"Qual \u00e9 a diferen\u00e7a entre p\u00f3 de calcita e p\u00f3 de m\u00e1rmore quando usados?"},"content":{"rendered":"<p>Embora ambos <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/machines\/\">p\u00f3 de calcita <\/a>e p\u00f3 de m\u00e1rmore pertencem a <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/machines\/ball-mill\/\">p\u00f3 de carbonato de c\u00e1lcio<\/a>, eles apresentam diferen\u00e7as \u00f3bvias em aplica\u00e7\u00f5es espec\u00edficas devido \u00e0s diferentes fontes de mat\u00e9ria-prima, caracter\u00edsticas estruturais e tecnologias de processamento. Entender suas diferen\u00e7as ajudar\u00e1 a fazer escolhas de materiais mais razo\u00e1veis em setores como pl\u00e1sticos, revestimentos e materiais de constru\u00e7\u00e3o, melhorando assim o desempenho e a rela\u00e7\u00e3o custo-benef\u00edcio do produto.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Compara\u00e7\u00e3o da natureza mineral\u00f3gica e propriedades f\u00edsico-qu\u00edmicas:<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"650\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/calcite-and-calcite-powder.webp\" alt=\"calcita e p\u00f3 de calcita\" class=\"wp-image-3286\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/calcite-and-calcite-powder.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/calcite-and-calcite-powder-300x244.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/calcite-and-calcite-powder-768x624.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/calcite-and-calcite-powder-15x12.webp 15w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Diferen\u00e7as na composi\u00e7\u00e3o e estrutura mineral<\/h3>\n\n\n\n<p><strong>P\u00f3 de calcita:<\/strong><\/p>\n\n\n\n<p>O principal componente \u00e9 o carbonato de c\u00e1lcio (CaCO\u2083), a estrutura cristalina \u00e9 trigonal e o produto puro \u00e9 incolor e transparente. No entanto, a calcita natural frequentemente apresenta colora\u00e7\u00e3o branco-acinzentada, amarelo-claro, etc., devido a impurezas como magn\u00e9sio, ferro e mangan\u00eas. Sua dureza Mohs \u00e9 3, a densidade relativa \u00e9 2,71, apresenta boa clivagem e as part\u00edculas de p\u00f3 est\u00e3o principalmente na forma de esmagamento rombo\u00e9drico.<\/p>\n\n\n\n<p><strong>P\u00f3 de m\u00e1rmore:<\/strong><br>Pertence ao p\u00f3 de rocha metam\u00f3rfica, e o principal mineral ainda \u00e9 a calcita (teor \u226550%). No entanto, \u00e9 frequentemente acompanhada por impurezas como dolomita (CaMg(CO\u2083)\u2082), quartzo e mica. Em termos de estrutura, devido \u00e0 influ\u00eancia do metamorfismo geol\u00f3gico, as part\u00edculas cristalinas s\u00e3o mais grosseiras e densas. A dureza de Mohs \u00e9 de 3,5 a 5, a densidade relativa \u00e9 de 2,6 a 2,8, e part\u00edculas compostas escamosas ou granulares podem ser observadas no p\u00f3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Compara\u00e7\u00e3o dos principais indicadores f\u00edsicos e qu\u00edmicos<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Indicadores<\/td><td>P\u00f3 de calcita<\/td><td>P\u00f3 de m\u00e1rmore<\/td><\/tr><tr><td>Pureza do CaCO\u2083<\/td><td>\u226595% (n\u00edvel industrial)<\/td><td>70%-90% (afetado por impurezas)<\/td><\/tr><tr><td>Ingredientes de impurezas<\/td><td>Fe\u2082O\u2083 comum, MgO<\/td><td>Cont\u00e9m SiO\u2082, Al\u2082O\u2083, dolomita, etc.<\/td><\/tr><tr><td>Brancura<\/td><td>85-95 (alta pureza at\u00e9 97)<\/td><td>75-85 (afetado por impurezas de pigmento)<\/td><\/tr><tr><td>Valor de absor\u00e7\u00e3o de \u00f3leo (ml\/100g)<\/td><td>15-30 (a superf\u00edcie da part\u00edcula \u00e9 relativamente lisa)<\/td><td>25-40 (alta porosidade de part\u00edculas escamosas)<\/td><\/tr><tr><td>valor de pH<\/td><td>8,0-9,0 (fracamente alcalino)<\/td><td>7,5-8,5 (um pouco menos afetado por impurezas)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Caracter\u00edsticas do processamento de p\u00f3 e <a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/ultrafine-air-classifier\/\">Classifica\u00e7\u00e3o<\/a> Adequa\u00e7\u00e3o<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"538\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/marble-and-marble-powder.webp\" alt=\"m\u00e1rmore e p\u00f3 de m\u00e1rmore\" class=\"wp-image-3287\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/marble-and-marble-powder.webp 800w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/marble-and-marble-powder-300x202.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/marble-and-marble-powder-768x516.webp 768w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/marble-and-marble-powder-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Diferen\u00e7as entre processos de moagem e classifica\u00e7\u00e3o<\/h3>\n\n\n\n<p><strong>P\u00f3 de calcita:<\/strong><\/p>\n\n\n\n<p>Devido \u00e0 sua baixa dureza e clivagem bem desenvolvida, \u00e9 adequado para moagem a seco em moinho Raymond, moinho de bolas, etc. \u00c9 f\u00e1cil obter p\u00f3 ultrafino com D50 = 1-10 \u03bcm. Durante a classifica\u00e7\u00e3o, devido ao formato regular das part\u00edculas, a trajet\u00f3ria de movimento \u00e9 est\u00e1vel no campo centr\u00edfugo. O classificador de fluxo de ar da s\u00e9rie HTS pode atingir uma classifica\u00e7\u00e3o de alta precis\u00e3o de D97 = 3 \u03bcm, e a taxa de sobrebritagem \u00e9 &lt;5%.<\/p>\n\n\n\n<p><strong>P\u00f3 de m\u00e1rmore:<\/strong><br>Quando cont\u00e9m impurezas duras, como quartzo, precisa ser britado por moinho de impacto ou moinho de fluxo de ar (como moinho de colis\u00e3o de leito fluidizado), e o consumo de energia \u00e9 20%-30% superior ao da calcita. Durante a classifica\u00e7\u00e3o, como as part\u00edculas em flocos s\u00e3o facilmente aglomeradas, \u00e9 necess\u00e1rio o uso de um dispersor supers\u00f4nico (press\u00e3o de 0,6-0,8 MPa) para destruir os aglomerados. A precis\u00e3o da classifica\u00e7\u00e3o \u00e9 reduzida. Quando D97 = 5 \u03bcm, a efici\u00eancia da classifica\u00e7\u00e3o \u00e9 de apenas 70% da calcita.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Adaptabilidade de modifica\u00e7\u00e3o de superf\u00edcie<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Os grupos hidroxila na superf\u00edcie do p\u00f3 de calcita s\u00e3o uniformes. Ap\u00f3s modifica\u00e7\u00e3o com \u00e1cido este\u00e1rico (dosagem de 1,5-2,0%), o grau de ativa\u00e7\u00e3o pode atingir 98%. \u00c9 adequado para ambientes que exigem alta dispersibilidade, como tubos de PVC.<\/li>\n\n\n\n<li>Devido aos complexos grupos ativos de superf\u00edcie das impurezas presentes no p\u00f3 de m\u00e1rmore, a dosagem do modificador (como o agente de acoplamento titanato) precisa ser aumentada para 2,5-3,0%. Al\u00e9m disso, o \u00e2ngulo de contato ap\u00f3s a modifica\u00e7\u00e3o \u00e9 10\u00b0-15\u00b0 menor que o da calcita, que \u00e9 propensa a problemas de dispers\u00e3o irregular em produtos de borracha.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Diferencia\u00e7\u00e3o de \u00c1reas de Aplica\u00e7\u00e3o<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"640\" height=\"610\" src=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/Epic-ball-mill.webp\" alt=\"Moinho de bolas \u00e9pico\" class=\"wp-image-3288\" srcset=\"https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/Epic-ball-mill.webp 640w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/Epic-ball-mill-300x286.webp 300w, https:\/\/calcium-carbonate.epic-powder.com\/wp-content\/uploads\/2025\/06\/Epic-ball-mill-13x12.webp 13w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Ind\u00fastria de pl\u00e1sticos:<\/h3>\n\n\n\n<p><strong>P\u00f3 de calcita:<\/strong><br>Cen\u00e1rio vantajoso: adicionar p\u00f3 de calcita ultrafina 3-5% (D50 = 2 \u03bcm) a um filme transparente (como filme para embalagem de alimentos). Como o \u00edndice de refra\u00e7\u00e3o \u00e9 pr\u00f3ximo ao PE (1,48 vs. 1,52), a transmit\u00e2ncia diminui apenas em 2-3%. Ao mesmo tempo, a resist\u00eancia \u00e0 tra\u00e7\u00e3o aumenta em 10-15%;<br>Pontos do processo: Fe\u2082O\u2083&lt;0,1% deve ser controlado para evitar oxida\u00e7\u00e3o catal\u00edtica durante o envelhecimento.<\/p>\n\n\n\n<p><strong>P\u00f3 de m\u00e1rmore:<\/strong><br>Aplica\u00e7\u00e3o t\u00edpica: caixa de pl\u00e1stico de c\u00e1lcio (dose adicional 30-40%), utilizando sua estrutura em flocos para aumentar o m\u00f3dulo de flex\u00e3o da chapa (at\u00e9 1500 MPa). No entanto, devido \u00e0 baixa brancura, precisa ser combinada com di\u00f3xido de tit\u00e2nio (dose 2-3%);<br>Fatores limitantes: Quando cont\u00e9m SiO\u2082&gt;5%, ele acelerar\u00e1 o desgaste do parafuso da m\u00e1quina de moldagem por inje\u00e7\u00e3o (a quantidade de desgaste \u00e9 3 vezes maior que a da calcita).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Revestimentos e tintas<\/h3>\n\n\n\n<p><strong>P\u00f3 de calcita:<\/strong><br>Utilizado como pigmento de corpo em tintas de parede interna de alta qualidade. O p\u00f3 ultrafino com D50=1-3\u03bcm pode preencher os poros da pel\u00edcula de tinta, aumentando o brilho para 60\u00b0 (medidor de brilho de 60\u00b0) e o baixo valor de absor\u00e7\u00e3o de \u00f3leo pode reduzir a quantidade de resina.<br>O uso de p\u00f3 de calcita modificada na superf\u00edcie (grau de ativa\u00e7\u00e3o &gt; 95%) na tinta pode melhorar a fluidez (a viscosidade diminui em 15-20 mPa\u00b2). Isso pode evitar o problema de entupimento.<\/p>\n\n\n\n<p><strong>P\u00f3 de m\u00e1rmore:<\/strong><br>Utilizado como agregado em tintas aquosas para paredes externas (D50 = 5-10 \u03bcm), sua superf\u00edcie rugosa \u00e9 utilizada para aumentar a resist\u00eancia do revestimento a manchas (n\u00edvel de mancha 1). No entanto, o sal sol\u00favel em \u00e1gua deve ser controlado para &lt; 0,1% para evitar efloresc\u00eancias.<br>Devido ao efeito fluorescente das impurezas, ele n\u00e3o pode ser usado em tintas de cura por luz ultravioleta (tintas UV), caso contr\u00e1rio, causar\u00e1 mudan\u00e7a de cor ap\u00f3s a cura.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclus\u00e3o<\/h2>\n\n\n\n<p>A escolha entre p\u00f3 de calcita e p\u00f3 de m\u00e1rmore \u00e9 essencialmente um equil\u00edbrio triangular entre &quot;pureza \u2013 custo \u2013 desempenho&quot;. O primeiro domina o mercado de alto padr\u00e3o, com alta pureza e adaptabilidade de processamento. O segundo ocupa os segmentos de m\u00e9dio e baixo padr\u00e3o, com as vantagens da utiliza\u00e7\u00e3o abrangente de recursos. Nanomodifica\u00e7\u00e3o, classifica\u00e7\u00e3o de comp\u00f3sitos e outras tecnologias est\u00e3o gradualmente rompendo as fronteiras das aplica\u00e7\u00f5es tradicionais e promovendo a aplica\u00e7\u00e3o cruzada dos dois tipos de p\u00f3s em campos emergentes, como novas energias e biomedicina.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">P\u00f3 \u00e9pico<\/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=\"Sistema de produ\u00e7\u00e3o de moinho de bolas e classificador de ar, grande capacidade, tamanho de p\u00f3 fino de 2 a 3 m\u00edcrons.\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/UJNNLX1abEs?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><a href=\"https:\/\/calcium-carbonate.epic-powder.com\/pt\/machines\/\">P\u00f3 \u00e9pico<\/a>Mais de 20 anos de experi\u00eancia na ind\u00fastria de p\u00f3s ultrafinos. Promovemos ativamente o desenvolvimento futuro de p\u00f3s ultrafinos, com foco nos processos de britagem, moagem, classifica\u00e7\u00e3o e modifica\u00e7\u00e3o de p\u00f3s ultrafinos. Entre em contato conosco para uma consulta gratuita e solu\u00e7\u00f5es personalizadas! Nossa equipe de especialistas se dedica a fornecer produtos e servi\u00e7os de alta qualidade para maximizar o valor do seu processamento de p\u00f3s. Epic Powder \u2014 Seu especialista confi\u00e1vel em processamento de p\u00f3s!<\/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=\"\/pt\/wp-json\/wp\/v2\/posts\/3285#wpcf7-f16-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\" data-trp-original-action=\"\/pt\/wp-json\/wp\/v2\/posts\/3285#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=\"Seu nome*\" 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=\"Seu 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=\"Seu 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=\"Sua empresa\" 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=\"Sua mensagem\" 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=\"Enviar\" \/>\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=\"pt\"\/><\/form>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Embora tanto o p\u00f3 de calcita quanto o p\u00f3 de m\u00e1rmore perten\u00e7am ao p\u00f3 de carbonato de c\u00e1lcio, eles apresentam diferen\u00e7as \u00f3bvias em aplica\u00e7\u00f5es espec\u00edficas devido \u00e0s diferentes fontes de mat\u00e9ria-prima, caracter\u00edsticas estruturais e tecnologias de processamento. Compreender suas diferen\u00e7as ajudar\u00e1 a fazer escolhas de materiais mais razo\u00e1veis em setores como pl\u00e1sticos, revestimentos e materiais de constru\u00e7\u00e3o. Assim, melhorando o desempenho e a rela\u00e7\u00e3o custo-benef\u00edcio do produto. 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