{"id":470,"date":"2026-04-27T14:28:45","date_gmt":"2026-04-27T14:28:45","guid":{"rendered":"https:\/\/staging.advancedcyclonesystems.com\/?page_id=470"},"modified":"2026-05-08T11:08:25","modified_gmt":"2026-05-08T11:08:25","slug":"processos-de-calcinacao","status":"publish","type":"page","link":"https:\/\/staging.advancedcyclonesystems.com\/pt\/calcination-and-mineral-processing\/","title":{"rendered":"Processos de calcina\u00e7\u00e3o"},"content":{"rendered":"<div class=\"et_pb_section_0 et_pb_section et_section_regular et_flex_section acs-page-hero\">\n<div class=\"et_pb_row_0 et_pb_row et_flex_row\">\n<div class=\"et_pb_column_0 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_phone et_flex_column_24_24_phoneWide et_flex_column_24_24_tabletWide et_flex_column_24_24_ultraWide\">\n<div class=\"et_pb_text_0 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p>\u00c1reas de Interven\u00e7\u00e3o<\/p>\n<\/div><\/div>\n\n<div class=\"et_pb_heading_0 et_pb_heading et_pb_module et_flex_module\"><div class=\"et_pb_heading_container\"><h1 class=\"et_pb_module_header\">Processos de calcina\u00e7\u00e3o<\/h1><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_1 et_pb_section et_section_regular et_flex_section acs-breadcrumb-section\">\n<div class=\"et_pb_row_1 et_pb_row et_flex_row\">\n<div class=\"et_pb_column_1 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_phone et_flex_column_24_24_phoneWide et_flex_column_24_24_tabletWide et_flex_column_24_24_ultraWide\">\n<div class=\"et_pb_code_0 et_pb_code et_pb_module\"><div class=\"et_pb_code_inner\"><\/div><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_section_2 et_pb_section et_section_regular et_flex_section acs-content-section\" id=\"acs-application-area\">\n<div class=\"et_pb_row_2 et_pb_row et_flex_row\">\n<div class=\"et_pb_column_2 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_phone et_flex_column_24_24_phoneWide et_flex_column_24_24_tabletWide et_flex_column_24_24_ultraWide\">\n<div class=\"et_pb_module et_pb_button_module_wrapper et_pb_button_0_wrapper\"><a class=\"et_pb_button_0 et_pb_button et_pb_bg_layout_light et_pb_module et_flex_module acs-btn-cases\" href=\"\">Casos de Estudo<\/a><\/div>\n<\/div>\n<\/div>\n\n<div class=\"et_pb_row_3 et_pb_row et_flex_row\">\n<div class=\"et_pb_column_3 et_pb_column et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_1_7 et_flex_column_24_24_phone et_flex_column_24_24_phoneWide et_flex_column_6_24_tabletWide et_flex_column_1_7_ultraWide\">\n<div class=\"et_pb_code_1 et_pb_code et_pb_module\"><div class=\"et_pb_code_inner\">    <div class=\"acs-app-nav acs-app-nav--ec\">\n        <button class=\"acs-app-nav-circle\" type=\"button\" aria-expanded=\"false\">\n            <div>Controlo de Emiss\u00f5es<\/div>\n        <\/button>\n\n        <div class=\"acs-app-nav-overlay\" aria-hidden=\"true\">\n            <div class=\"acs-app-nav-panel\">\n                <div class=\"acs-app-nav-spacer\" aria-hidden=\"true\"><\/div>\n                <div class=\"acs-app-nav-links\">\n                    <ul>\n                                                    <li>\n                                <a href=\"https:\/\/staging.advancedcyclonesystems.com\/pt\/biomass-and-coal-combustion\/\">Caldeiras de Biomassa e Carv\u00e3o<\/a>\n                            <\/li>\n                                                    <li>\n                                <a href=\"https:\/\/staging.advancedcyclonesystems.com\/pt\/biomass-drying\/\">Secadores<\/a>\n                            <\/li>\n                                                    <li>\n                                <a href=\"https:\/\/staging.advancedcyclonesystems.com\/pt\/pyrolysis-gasification\/\">Pir\u00f3lise, incinera\u00e7\u00e3o e gasifica\u00e7\u00e3o<\/a>\n                            <\/li>\n                                                    <li>\n                                <a href=\"https:\/\/staging.advancedcyclonesystems.com\/pt\/high-temperature-separation-processes\/\">Processos de separa\u00e7\u00e3o a alta temperatura<\/a>\n                            <\/li>\n                                                    <li class=\"current\">\n                                <a href=\"https:\/\/staging.advancedcyclonesystems.com\/pt\/calcination-and-mineral-processing\/\">Processos de calcina\u00e7\u00e3o<\/a>\n                            <\/li>\n                                                    <li>\n                                <a href=\"https:\/\/staging.advancedcyclonesystems.com\/pt\/steel-and-ferroalloys\/\">Ligas de a\u00e7o e ferro<\/a>\n                            <\/li>\n 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<\/div><\/div>\n<\/div>\n\n<div class=\"et_pb_column_4 et_pb_column et-last-child et_flex_column et_pb_css_mix_blend_mode_passthrough et_flex_column_24_24 et_flex_column_24_24_phone et_flex_column_24_24_phoneWide et_flex_column_24_24_tabletWide et_flex_column_24_24_ultraWide\">\n<div class=\"et_pb_heading_1 et_pb_heading et_pb_module et_flex_module translation-block\"><div class=\"et_pb_heading_container\"><h2 class=\"et_pb_module_header\">Calcina\u00e7\u00e3o e Processamento de Minerais<\/h2><\/div><\/div>\n\n<div class=\"et_pb_text_1 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p class=\"translation-block\"><span>A <\/span><strong>calcina\u00e7\u00e3o<\/strong><span>\u00a0\u00e9 um processo que envolve aquecer uma subst\u00e2ncia, tipicamente um material s\u00f3lido, a alta temperatura com fornecimento limitado de ar ou oxig\u00e9nio. O objetivo da calcina\u00e7\u00e3o \u00e9 remover componentes vol\u00e1teis e eliminar impurezas ou transformar o material numa forma mais desej\u00e1vel para processamento posterior.<\/span><\/p>\n<\/div><\/div>\n\n<div class=\"et_pb_heading_2 et_pb_heading et_pb_module et_flex_module\"><div class=\"et_pb_heading_container\"><h3 class=\"et_pb_module_header\">Fabrico de Cimento<\/h3><\/div><\/div>\n\n<div class=\"et_pb_text_2 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p class=\"translation-block\">Um dos processos mais comuns \u00e9 a fabrica\u00e7\u00e3o de cimento Portland, onde calc\u00e1rio (CaCO\u2083) \u00e9 alimentado num grande forno rotativo com argila. O ar quente gerado a partir de queimadores a carv\u00e3o, pet-coke ou g\u00e1s natural aumenta a temperatura para produzir cal viva (CaO), que funde minerais com a argila e arrefece at\u00e9 formar cl\u00ednquer: n\u00f3dulos cinza-p\u00e1lidos que s\u00e3o mo\u00eddos para fazer p\u00f3 de cimento. No processo, grandes quantidades de CO\u2082 s\u00e3o libertadas.<\/p>\n<p class=\"translation-block\">Um <strong>pr\u00e9-aquecedor<\/strong> composto por uma s\u00e9rie de ciclones \u00e9 usado para pr\u00e9-aquecer calc\u00e1rio, argila e areia antes que esses materiais entrem no forno rotativo. Este processo ajuda a reduzir a quantidade de energia necess\u00e1ria para operar o forno, bem como a quantidade de combust\u00edvel necess\u00e1rio para atingir a temperatura desejada.<\/p>\n<p class=\"translation-block\">Um <strong>arrefecedor de cl\u00ednquer<\/strong> arrefece e solidifica o cl\u00ednquer quente descarregado do forno rotativo, para facilitar o manuseio e armazenamento do material.<\/p>\n<p class=\"translation-block\">Ambos os processos necessitam de <strong>despoeiramento<\/strong> antes que os gases quentes sejam liberados para a chamin\u00e9 ou sejam usados para <strong>recupera\u00e7\u00e3o de energia<\/strong>.<\/p>\n<\/div><\/div>\n\n<div class=\"et_pb_image_0 et_pb_image et_pb_module et_flex_module\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/staging.advancedcyclonesystems.com\/wp-content\/uploads\/2026\/05\/clinker-cooler-01_1103.png\" title=\"calcination-and-mineral-processing-2025-01_1179\" width=\"600\" height=\"450\" srcset=\"https:\/\/staging.advancedcyclonesystems.com\/wp-content\/uploads\/2026\/05\/clinker-cooler-01_1103.png 918w, https:\/\/staging.advancedcyclonesystems.com\/wp-content\/uploads\/2026\/05\/clinker-cooler-01_1103-480x360.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 600px, 100vw\" class=\"wp-image-566\" \/><\/span><\/div>\n\n<div class=\"et_pb_heading_3 et_pb_heading et_pb_module et_flex_module\"><div class=\"et_pb_heading_container\"><h3 class=\"et_pb_module_header\">Despoeiramento do Pr\u00e9-aquecedor para Recupera\u00e7\u00e3o de Energia<\/h3><\/div><\/div>\n\n<div class=\"et_pb_text_3 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p><span>Normalmente, h\u00e1 uma grande concentra\u00e7\u00e3o de finos escapando com a \u00faltima sa\u00edda de g\u00e1s do ciclone do pr\u00e9-aquecedor, tipicamente compostos de pequenas part\u00edculas de mat\u00e9ria-prima e cinzas volantes (D50~2,5\u00b5m).<\/span><\/p>\n<p><span>Em f\u00e1bricas de cimento de nova gera\u00e7\u00e3o, os gases quentes s\u00e3o usados para recupera\u00e7\u00e3o de energia, como\u00a0<\/span><strong>aquecimento de um moinho para moagem de pet-coke, aquecimento de um secador de calc\u00e1rio<\/strong><span>\u00a0ou para\u00a0<\/span><strong>permitir a recupera\u00e7\u00e3o de calor em permutadores ou caldeiras de recupera\u00e7\u00e3o.<\/p>\n<p>As solu\u00e7\u00f5es da ACS<\/strong><span>\u00a0incluem\u00a0<\/span><strong>ciclones de alta efici\u00eancia<\/strong><span>\u00a0para reduzir significativamente a concentra\u00e7\u00e3o de finos antes dos\u00a0<\/span><strong>moinhos de pet-coke<\/strong><span>,\u00a0<\/span><strong>ciclones de processo com baixa perda de carga para secadores de calc\u00e1rio<span>\u00a0<\/span><\/strong><span>e<\/span><strong><span>\u00a0<\/span>ciclones pr\u00e9-separadores para recupera\u00e7\u00e3o de calor.<\/strong><span>\u00a0<span><\/span>\u00a0<\/span><\/p>\n<\/div><\/div>\n\n<div class=\"et_pb_heading_4 et_pb_heading et_pb_module et_flex_module\"><div class=\"et_pb_heading_container\"><h3 class=\"et_pb_module_header\">Despoeiramento do Arrefecedor de Cl\u00ednquer<\/h3><\/div><\/div>\n\n<div class=\"et_pb_text_4 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p><span>The particles carried over in the exhaust gases of the clinker cooler are very abrasive due to their chemical composition and physical properties. The hardness of clinker particles, combined with their irregular shape, surface texture and large size (D50&gt;100\u03bcm), can cause them to wear down equipment and machinery, such as heat exchangers, waste recovery boilers and end stage bag filters.<\/span><\/p>\n<\/div><\/div>\n\n<div class=\"et_pb_image_1 et_pb_image et_pb_module et_flex_module\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/staging.advancedcyclonesystems.com\/wp-content\/uploads\/2026\/05\/clinker-cooler-02_1104.png\" title=\"calcination-and-mineral-processing-02_1180\" width=\"601\" height=\"281\" srcset=\"https:\/\/staging.advancedcyclonesystems.com\/wp-content\/uploads\/2026\/05\/clinker-cooler-02_1104.png 918w, https:\/\/staging.advancedcyclonesystems.com\/wp-content\/uploads\/2026\/05\/clinker-cooler-02_1104-480x214.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 601px, 100vw\" class=\"wp-image-564\" \/><\/span><\/div>\n\n<div class=\"et_pb_text_5 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p><strong>As solu\u00e7\u00f5es da ACS<\/strong><span>\u00a0incluem\u00a0<\/span><strong>abrasive resistant cyclones with low pressure drop<\/strong><span>\u00a0to heavily reduce the concentration of clinker particles, thereby enabling energy recovery and increasing the lifetime of bag filters.<\/span><br \/><span>\u00a0<\/span><\/p>\n<h3><strong>Novos Materiais para Substituir Parcialmente o Cl\u00ednquer<\/strong><\/h3>\n<p><strong>Calcined clay<\/strong><span>\u00a0(or metakaolin) can play a role in cement manufacturing by partially replacing clinker and thereby contribute to a reduction in CO<\/span><sub>2<\/sub><span>\u00a0emissions. When used in combination with other supplementary cementitious materials, such as fly ash or slag, calcined clay can help to reduce the overall clinker content of cement while maintaining or improving its mechanical and durability properties. As in other calcination processes, calcined clay is manufactured in kilns by heating natural clay materials to high temperatures (though lower than those of clinker) typically in the range of 650-800\u00b0C, to drive off water and other volatile components.<\/span><br \/><span>\u00a0<\/span><br \/><strong>As solu\u00e7\u00f5es da ACS<\/strong><span>\u00a0incluem\u00a0<\/span><strong>high efficiency cyclones to separate clay particles after kilns and flash dryers \/ calciners<\/strong><span>\u00a0upstream of final stage dedusters such as wet scrubbers.<\/span><br \/><span>\u00a0<\/span><\/p>\n<h3><strong>Calcination of Magnesium Oxide<\/strong><\/h3>\n<p><strong>Argila calcinada<\/strong><span>\u00a0(ou metacaulim) pode desempenhar um papel na fabrica\u00e7\u00e3o de cimento substituindo parcialmente o cl\u00ednquer e, assim, contribuir para a redu\u00e7\u00e3o das emiss\u00f5es de CO\u2082. Quando utilizada em combina\u00e7\u00e3o com outros materiais ciment\u00edcios suplementares, como cinzas volantes ou esc\u00f3ria, a argila calcinada pode ajudar a reduzir o teor geral de cl\u00ednquer do cimento, mantendo ou melhorando suas propriedades mec\u00e2nicas e de durabilidade. Como em outros processos de calcina\u00e7\u00e3o, a argila calcinada \u00e9 fabricada em fornos aquecendo materiais de argila natural a altas temperaturas (embora inferiores \u00e0s do cl\u00ednquer), tipicamente na faixa de 650-800\u00b0C, para eliminar \u00e1gua e outros componentes vol\u00e1teis.<\/span><\/p>\n<p class=\"translation-block\"><span> <\/span><\/p>\n<p><strong>As solu\u00e7\u00f5es da ACS<\/strong><span>\u00a0incluem\u00a0<\/span><strong>cost efficient and abrasive resistant last stage cyclones in the pre-heater tower<\/strong><span>\u00a0to greatly reduce concentration before baghouses.<\/span><br \/><span>\u00a0<\/span><\/p>\n<h3><strong>Calcina\u00e7\u00e3o de \u00d3xido de Magn\u00e9sio<\/strong><\/h3>\n<p class=\"translation-block\"><strong>O \u00f3xido de magn\u00e9sio (MgO)<\/strong> tem uma ampla gama de aplica\u00e7\u00f5es devido \u00e0s suas propriedades \u00fanicas, como alto ponto de fus\u00e3o, alta condutividade t\u00e9rmica, alta resistividade el\u00e9trica e boa estabilidade qu\u00edmica. As aplica\u00e7\u00f5es incluem materiais de constru\u00e7\u00e3o (MgO pode ser um aglutinante na constru\u00e7\u00e3o de cimento), materiais refrat\u00e1rios, uso em fertilizantes e outros.\n<br><br>\nMgO tamb\u00e9m \u00e9 obtido por um processo de calcina\u00e7\u00e3o semelhante ao da cal viva. Neste caso, o carbonato de magn\u00e9sio (MgCO\u2083) \u00e9 decomposto em MgO e CO\u2082.<\/p>\n<p class=\"translation-block\"><h3>Calcina\u00e7\u00e3o de Cal Dolom\u00edtica<\/h3>\nA <strong>cal dolom\u00edtica<\/strong> \u00e9 obtida pela calcina\u00e7\u00e3o de dolomita num forno com alto grau de calc\u00e1rio e magn\u00e9sio CaMg(CO\u2083)\u2082, obtendo-se CaO\u00b0MgO. As aplica\u00e7\u00f5es incluem a ind\u00fastria do a\u00e7o, materiais refrat\u00e1rios, vidro e agricultura.\n<br><br>\n<strong>As necessidades dos clientes<\/strong> para despoeiramento s\u00e3o muito semelhantes \u00e0s do \u00f3xido de magn\u00e9sio e <\/strong>incluem ciclones resistentes \u00e0 abras\u00e3o e eficientes <strong>em termos de custo para reduzir a concentra\u00e7\u00e3o antes das casas de sacos.<\/p>\n<p><span>\u00a0<\/span><\/p>\n<h3><strong>Calcina\u00e7\u00e3o de Aluminato de C\u00e1lcio<\/strong><\/h3>\n<p><span>Calcium aluminate (CaAl<\/span><sub>2<\/sub><span>O<\/span><sub>4<\/sub><span>) is a compound made up of calcium oxide (CaO) and aluminum oxide (Al<\/span><sub>2<\/sub><span>O<\/span><sub>3<\/sub><span>O aluminato de c\u00e1lcio (CaAl\u2082O\u2084) \u00e9 um composto formado por \u00f3xido de c\u00e1lcio (CaO) e \u00f3xido de alum\u00ednio (Al\u2082O\u2083). Uma das principais aplica\u00e7\u00f5es do aluminato de c\u00e1lcio \u00e9 como mat\u00e9ria-prima na produ\u00e7\u00e3o de materiais refrat\u00e1rios. O aluminato de c\u00e1lcio tamb\u00e9m pode ser usado como aglutinante na fabrica\u00e7\u00e3o de cimento de alto desempenho, que possui resist\u00eancia, durabilidade e resist\u00eancia qu\u00edmica superiores em compara\u00e7\u00e3o com o concreto tradicional.<\/span><\/p>\n<p><span>Calcium aluminate can assume a\u00a0<\/span><strong>vitrified fiber form<\/strong><span>\u00a0similar to rock wool, which is very demanding to end stage dedusters, such as bag filters, causing frequent clogging.\u00a0<\/span><strong>As solu\u00e7\u00f5es da ACS<\/strong><span>\u00a0incluem\u00a0<\/span><strong>cost efficient cyclones to increase the collection of fibers<\/strong><span>\u00a0e\u00a0<\/span><strong>reduce maintenance<\/strong><span>\u00a0in the bag house.<\/span><\/p>\n<p>\u00a0<\/p>\n<h3><strong>Looping de C\u00e1lcio<\/strong><\/h3>\n<p class=\"translation-block\">No <strong>looping de c\u00e1lcio<\/strong>, o sorvente <strong>\u00f3xido de c\u00e1lcio (CaO) reage<\/strong> com o <strong>CO<\/strong>\u2082 nos gases de combust\u00e3o de um processo industrial (como a fabrica\u00e7\u00e3o de cimento) para formar carbonato de c\u00e1lcio <strong>(CaCO\u2083)<\/strong>.<\/p>\n<p class=\"translation-block\">O <strong>CaCO\u2083<\/strong> \u00e9 ent\u00e3o decomposto para capturar o CO\u2082 e regenerar o CaO para uso posterior.<\/p>\n<ul class=\"bullets\">\n<li>O processo baseia-se em<span>\u00a0<\/span><strong>duas rea\u00e7\u00f5es qu\u00edmicas revers\u00edveis: carbonata\u00e7\u00e3o e calcina\u00e7\u00e3o.<\/strong><\/li>\n<li>Durante a<span>\u00a0<\/span><strong>carbonata\u00e7\u00e3o<\/strong>, o<span>\u00a0<\/span><strong>sorvente<\/strong><span>\u00a0<\/span>reage com o<span>\u00a0<\/span><strong>CO<sub>2<\/sub><\/strong><span>\u00a0<\/span>nos gases de combust\u00e3o para formar carbonato de c\u00e1lcio (CaCO<sub>3<\/sub>) - &gt;<span>\u00a0<\/span><strong>capturado com ciclones.<\/strong><\/li>\n<li>O CaCO<sub>3<\/sub><span>\u00a0<\/span>\u00e9 ent\u00e3o alimentado num<span>\u00a0<\/span><strong>calcinador<\/strong>onde \u00e9 aquecido a cerca de 850\u00b0C-950\u00b0C, causando sua decomposi\u00e7\u00e3o numa corrente de g\u00e1s<span>\u00a0<\/span><strong><u><span><\/span><\/u><span>\u00a0<\/span>CO<sub>2<\/sub><\/strong><span>\u00a0<\/span><span><\/span><span>\u00a0<\/span><strong>quase puro e CaO s\u00f3lido<\/strong>. O CO<sub>2<\/sub><span>\u00a0<\/span>\u00e9 removido e purificado, antes de ser enviado para armazenamento geol\u00f3gico ou para uso posterior.<\/li>\n<li>O CaO s\u00f3lido pode ser enviado de volta para reutiliza\u00e7\u00e3o no processo para capturar mais CO<sub>2<\/sub>.<\/li>\n<\/ul>\n<\/div><\/div>\n\n<div class=\"et_pb_image_2 et_pb_image et_pb_module et_flex_module\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/staging.advancedcyclonesystems.com\/wp-content\/uploads\/2026\/05\/calcinacao_1105.png\" title=\"calcination-and-mineral-processing-03_1217\" width=\"781\" height=\"600\" srcset=\"https:\/\/staging.advancedcyclonesystems.com\/wp-content\/uploads\/2026\/05\/calcinacao_1105.png 917w, https:\/\/staging.advancedcyclonesystems.com\/wp-content\/uploads\/2026\/05\/calcinacao_1105-480x361.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 781px, 100vw\" class=\"wp-image-565\" \/><\/span><\/div>\n\n<div class=\"et_pb_text_6 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module\"><div class=\"et_pb_text_inner\"><p><strong>As solu\u00e7\u00f5es da ACS<\/strong><span>\u00a0incluem\u00a0<\/span><strong>ciclones de alta efici\u00eancia para o carbonatador e para o calcinador, para aumentar a coleta tanto de sorventes carbonatados quanto de sorventes calcinados.<\/strong><span><\/span><\/p>\n<\/div><\/div>\n\n<div class=\"et_pb_text_7 et_pb_text et_pb_bg_layout_light et_pb_module et_flex_module translation-block\"><div class=\"et_pb_text_inner\"><h3><strong>Paper Mill Sludge Valorization: High-Temperature Mineral Recovery<\/strong><\/h3>\n<h4><strong>Transforming Paper Mill Sludge into Calcium Carbonate\u00a0<\/strong><\/h4>\n<p class=\"translation-block\"><span><\/span><\/p>\n<h4><strong>Pyrolysis-based Mineral Recovery<\/strong><\/h4>\n<p>In pyrolysis processes, the organic fraction of the sludge is thermally removed, enabling the\u00a0<strong>concentration and recovery of calcium carbonate-rich minerals.<\/strong><\/p>\n<p><strong>ACS cyclones<\/strong>\u00a0ensure:<\/p>\n<ul class=\"bullets\">\n<li>Efficient separation of solids from hot process gases<\/li>\n<li>Reliable operation under high-temperature and abrasive conditions<\/li>\n<\/ul>\n<p class=\"translation-block\"><span><\/span><\/p>\n<h3><strong>Thermal Calcination and Mineral Activation<\/strong><\/h3>\n<p>In calcination and activation routes, the sludge is dried and rapidly heated to produce\u00a0<strong>activated mineral materials<\/strong>. Depending on process conditions, the output may include:<\/p>\n<ul class=\"bullets\">\n<li>Activated calcium carbonate\u00a0for high-performance fillers<\/li>\n<li>Reactive mineral ash\u00a0for partial cement replacement<\/li>\n<li>Mineral materials with CO\u2082 adsorption potential, in selected cases<\/li>\n<\/ul>\n<p>Cyclones play a key role in the\u00a0<strong>high temperature Product Recovery.<\/strong><\/p>\n<h3><strong>Why ACS Cyclones?<\/strong><\/h3>\n<p>For high-temperature sludge valorization, ACS cyclones offer clear advantages:<\/p>\n<ul class=\"bullets\">\n<li>Operation up to\u00a0900 \u00b0C<\/li>\n<li>Low pressure drop\u00a0and high energy efficiency<\/li>\n<li>Robust, maintenance-free design\u00a0with no consumables<\/li>\n<li>Modular and scalable solutions\u00a0for easy plant integration<\/li>\n<\/ul>\n<p><strong>ACS cyclone technology enables efficient, reliable and sustainable recovery of valuable minerals from paper mill sludge processing 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