{"id":21082,"date":"2023-07-27T16:02:09","date_gmt":"2023-07-27T08:02:09","guid":{"rendered":"https:\/\/www.jxscmachine.com\/?post_type=new&#038;p=21082"},"modified":"2026-07-14T17:20:53","modified_gmt":"2026-07-14T09:20:53","slug":"classificacao-magnetica-mineral-separacao-magnetica","status":"publish","type":"new","link":"https:\/\/www.jxscmachine.com\/pt\/new\/mineral-magnetic-classification-magnetic-separation\/","title":{"rendered":"Classifica\u00e7\u00e3o magn\u00e9tica de minerais e separa\u00e7\u00e3o magn\u00e9tica"},"content":{"rendered":"<p><strong>Introduction: Magnetic separation<\/strong> is a crucial mineral processing method for mineral beneficiation based on differences in magnetic properties; it is widely applied in the processing of iron ores, rare metal ores, and non-metallic minerals. A mineral&#8217;s magnetic properties are primarily determined by its composition, structure, and mode of occurrence, with significant variations in specific magnetic susceptibility among different minerals. As the design of magnetic separators directly impacts separation efficiency, selecting the appropriate equipment requires consideration of specific mineral magnetic properties and processing requirements. <strong>This paper provides a systematic overview of mineral magnetic classifications and common types of magnetic separators, offering a theoretical reference for magnetic separation processes.<\/strong><\/p>\n<p>&nbsp;<\/p>\n<h2>Magnetic Classification of Minerals<\/h2>\n<p>As propriedades magn\u00e9ticas classificam os minerais com base na suscetibilidade magn\u00e9tica espec\u00edfica. Durante a separa\u00e7\u00e3o magn\u00e9tica, quanto maior for a diferen\u00e7a na suscetibilidade magn\u00e9tica espec\u00edfica dos minerais, mais f\u00e1cil ser\u00e1 a separa\u00e7\u00e3o.<\/p>\n<h3>According to Magnetism<\/h3>\n<p>O magnetismo pode ser visto como o resultado do movimento de part\u00edculas carregadas dentro da mat\u00e9ria e \u00e9 uma das propriedades fundamentais da mat\u00e9ria. Todos os tipos de subst\u00e2ncias na natureza t\u00eam diferentes graus de magnetismo; a maioria tem um magnetismo muito fraco e apenas algumas t\u00eam um magnetismo forte. Em termos de magnetismo, a mat\u00e9ria pode ser dividida em tr\u00eas categorias:<\/p>\n<ol>\n<li><strong>Subst\u00e2ncia paramagn\u00e9tica<\/strong><\/li>\n<li><strong>Subst\u00e2ncia diamagn\u00e9tica<\/strong><\/li>\n<li><strong>Subst\u00e2ncias ferromagn\u00e9ticas (ferrimagn\u00e9ticas, antiferromagn\u00e9ticas)<\/strong><\/li>\n<\/ol>\n<p><a href=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/magnetic-mineral.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-21083\" src=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/magnetic-mineral.jpg\" alt=\"mineral magn\u00e9tico\" width=\"1200\" height=\"1200\" srcset=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/magnetic-mineral.jpg 1200w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/magnetic-mineral-768x768.jpg 768w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/magnetic-mineral-75x75.jpg 75w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/magnetic-mineral-150x150.jpg 150w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>According to The Size of The Mineral-specific Magnetic Susceptibility<\/h3>\n<p>&nbsp;<\/p>\n<h4>1. Minerais magn\u00e9ticos fortes<\/h4>\n<p>A sua suscetibilidade magn\u00e9tica espec\u00edfica X \u00e9 superior a 3000\u00d710-6 cent\u00edmetros c\u00fabicos\/grama. Pode ser selecionado num separador magn\u00e9tico fraco com uma for\u00e7a de campo magn\u00e9tico H = 7200~136000 A\/m, e \u00e9 um mineral f\u00e1cil de selecionar. Existem muito poucos minerais pertencentes a esta categoria. Incluem-se principalmente a magnetite, a maghemite (hematite gama), a magnetite de tit\u00e2nio, a pirrotite, o espin\u00e9lio de ferro e zinco, etc. A maior parte destes minerais s\u00e3o ferrimagn\u00e9ticos.<\/p>\n<p><a href=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/Strong-Magnetic-Minerals.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-21086\" src=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/Strong-Magnetic-Minerals.jpg\" alt=\"Minerais magn\u00e9ticos fortes\" width=\"676\" height=\"497\"><\/a><\/p>\n<p><strong><b>Caracter\u00edsticas magn\u00e9ticas dos minerais fortemente magn\u00e9ticos<\/b><\/strong><\/p>\n<p>A magnetite pode ser utilizada como representante de minerais magn\u00e9ticos fortes, que s\u00e3o ferrimagn\u00e9ticos; devido \u00e0 estrutura do dom\u00ednio magn\u00e9tico interno (ou seja, uma pequena \u00e1rea de magnetiza\u00e7\u00e3o espont\u00e2nea), as suas propriedades magn\u00e9ticas s\u00e3o relativamente complicadas, e as suas caracter\u00edsticas magn\u00e9ticas resumem-se da seguinte forma:<\/p>\n<p>\u2460 The magnetization intensity and the magnetization coefficient value are very large; there is a magnetic saturation phenomenon, and the magnetic saturation can be achieved under the action of a low external magnetic field intensity;<\/p>\n<p>\u2461 Existe uma rela\u00e7\u00e3o curvil\u00ednea entre a intensidade da magnetiza\u00e7\u00e3o, o coeficiente de suscetibilidade magn\u00e9tica e a intensidade do campo magn\u00e9tico externo, e o coeficiente de suscetibilidade magn\u00e9tica n\u00e3o \u00e9 uma constante. Para al\u00e9m de estar relacionada com as propriedades dos minerais, a magnetiza\u00e7\u00e3o est\u00e1 tamb\u00e9m relacionada com a altera\u00e7\u00e3o do campo magn\u00e9tico externo;<\/p>\n<p>\u2462 A magnetite tem um fen\u00f3meno de histerese. Quando deixa o campo de magnetiza\u00e7\u00e3o, ret\u00e9m uma certa quantidade de reman\u00eancia; \u00c9 necess\u00e1rio adicionar um campo magn\u00e9tico reverso para remover a reman\u00eancia. A for\u00e7a do campo diamagn\u00e9tico Hc que remove completamente o magnetismo residual \u00e9 chamada de for\u00e7a coercitiva<\/p>\n<p>\u2463 Its magnetic change is related to temperature. When the temperature is higher than the critical value\u2014the Curie point- the internal magnetic domain structure disappears, showing paramagnetism;<\/p>\n<p>\u2464 Its magnetic crossing is not only related to the strength of the external magnetizing field but is also affected by the cobalt&#8217;s shape, particle size, and oxidation degree.<\/p>\n<p>&nbsp;<\/p>\n<h4>2. Medium Magnetic Minerals<\/h4>\n<p>A sua suscetibilidade magn\u00e9tica espec\u00edfica X situa-se entre (600~3000)x10-6 cent\u00edmetros c\u00fabicos\/grama. Os \u00fanicos minerais que pertencem a esta categoria s\u00e3o a ilmenite e a pseudo-hematite. A <a href=\"https:\/\/www.jxscmachine.com\/pt\/categoria\/separador-magnetico\/\">separador magn\u00e9tico<\/a> com uma intensidade de campo magn\u00e9tico H de 160.000~480.000 A\/m \u00e9 necess\u00e1ria para selecionar esses minerais.<\/p>\n<p><a style=\"font-weight: bold; background-color: transparent; font-family: 'Noto Sans', sans-serif; text-align: inherit;\" href=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/Medium-magnetic-minerals.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-21084\" src=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/Medium-magnetic-minerals.jpg\" alt=\"Minerais magn\u00e9ticos m\u00e9dios\" width=\"677\" height=\"613\"><\/a><\/p>\n<p>&nbsp;<\/p>\n<h4>3. Weak Magnetic Minerals<\/h4>\n<p>A suscetibilidade magn\u00e9tica espec\u00edfica do material X situa-se entre (15~600)x10-6 cent\u00edmetros c\u00fabicos\/grama. Pode ser selecionado num separador magn\u00e9tico forte com uma for\u00e7a de campo magn\u00e9tico de H=480000~1600000A\/m. Muitos minerais pertencem a esta categoria, alguns dos quais s\u00e3o f\u00e1ceis de escolher, e alguns s\u00e3o dif\u00edceis de escolher. Incluem-se principalmente a maior parte dos minerais de ferro e mangan\u00eas - hematite, especularite, limonite, siderite, min\u00e9rio de mangan\u00eas, pirolusite, min\u00e9rio de mangan\u00eas, rodocrosite, etc.; alguns minerais que cont\u00eam cr\u00f3mio e tungst\u00e9nio - min\u00e9rio de ferrocr\u00f3mio, volframite, etc.; alguns minerais formadores de rocha - biotite, hornblenda, epidoto, clorite, serpentina, olivina, granada, pirox\u00e9nio, etc. Os grandes destes minerais s\u00e3o paramagn\u00e9ticos e alguns s\u00e3o antiferromagn\u00e9ticos.<\/p>\n<p><a href=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/Weak-magnetic-minerals.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-21087\" src=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/Weak-magnetic-minerals.jpg\" alt=\"Minerais magn\u00e9ticos fracos\" width=\"500\" height=\"500\" srcset=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/Weak-magnetic-minerals.jpg 500w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/Weak-magnetic-minerals-75x75.jpg 75w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/Weak-magnetic-minerals-150x150.jpg 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/p>\n<h4>4. Non-magnetic Minerals<\/h4>\n<p>O seu coeficiente de suscetibilidade magn\u00e9tica espec\u00edfica \u00e9 inferior a 15\u00d710-6 cent\u00edmetros c\u00fabicos\/grama. Existem muitos minerais que pertencem a esta categoria. Incluem-se principalmente alguns minerais met\u00e1licos - calcocite, galena, esfalerite, estibnite, scheelite, cassiterite, ouro, etc. A maioria dos minerais n\u00e3o met\u00e1licos - enxofre, carv\u00e3o, grafite, diamante, gesso, caulino, etc.; a maioria dos minerais formadores de rocha - quartzo, feldspato, calcite, etc. Alguns destes minerais s\u00e3o paramagn\u00e9ticos e outros s\u00e3o diamagn\u00e9ticos. Os minerais ditos n\u00e3o magn\u00e9ticos n\u00e3o s\u00e3o desprovidos de magnetismo, mas s\u00e3o extremamente pequenos.<\/p>\n<p><a href=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/Non-magnetic-minerals.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-21085\" src=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/07\/Non-magnetic-minerals.jpg\" alt=\"Minerais n\u00e3o magn\u00e9ticos\" width=\"630\" height=\"403\"><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>A classifica\u00e7\u00e3o acima \u00e9 uma classifica\u00e7\u00e3o aproximada nas condi\u00e7\u00f5es t\u00e9cnicas modernas, porque muitos factores afectam as propriedades magn\u00e9ticas dos minerais. Mesmo os mesmos minerais n\u00e3o s\u00e3o id\u00eanticos nas suas propriedades magn\u00e9ticas.<\/p>\n<p>&nbsp;<\/p>\n<h2>Magnetic Separators<\/h2>\n<p>Generally speaking, t<strong>he choice of magnetic separator is as follows:<\/strong> strong magnetic separators select weak magnetic minerals, and weak magnetic separators select strong magnetic minerals. With the development of magnetic separation technology, the boundary between weak magnetic minerals and non-magnetic minerals will change. The lower limit of the specific magnetic susceptibility of weakly magnetic minerals is constantly decreasing, an inevitable trend in the development of magnetic separation and magnetic separators.<\/p>\n<p><a href=\"\/pt\/\"><strong><b>M\u00e1quina JXSC<\/b><\/strong><\/a> is a renowned and reputable company providing mineral solutions and manufacturing mining equipment. It specializes in designing and manufacturing various magnetic separators for applications and mining scenarios. JXSC offers an extensive portfolio of magnetic separation equipment, tailored to meet the diverse needs of its clients.<\/p>\n<h3>Some Popular Magnetic Separators<\/h3>\n<p>The selection of a magnetic separator depends on parameters such as mineral magnetic properties, particle size, and processing capacity. <strong>Common magnetic separators include:<\/strong><\/p>\n<ul>\n<li><b><\/b><strong><b>Separador de tambor magn\u00e9tico:&nbsp;<\/b><\/strong>Estes separadores utilizam um tambor rotativo para capturar e separar as part\u00edculas magn\u00e9ticas da mistura de min\u00e9rio. S\u00e3o eficazes na remo\u00e7\u00e3o de ferro residual e outros contaminantes ferromagn\u00e9ticos.<\/li>\n<li><b><\/b><strong><b>Polia magn\u00e9tica: <\/b><\/strong>Utilizadas para a extra\u00e7\u00e3o cont\u00ednua de metais ferrosos de material transportado em correias transportadoras, as polias magn\u00e9ticas s\u00e3o essenciais nas ind\u00fastrias de reciclagem e de manuseamento a granel.<\/li>\n<li><b><\/b><strong><b>Separador magn\u00e9tico de banda larga: <\/b><\/strong>Concebidos para atrair e remover metais ferrosos indesej\u00e1veis do material transportado, os separadores de banda larga s\u00e3o cruciais para garantir o bom funcionamento do equipamento a jusante.<\/li>\n<li><b><\/b><strong><b>Grelha\/grade magn\u00e9tica: <\/b><\/strong>Estes separadores consistem numa s\u00e9rie de tubos magn\u00e9ticos dispostos numa grelha, separando eficazmente as part\u00edculas ferrosas finas dos materiais em fluxo livre.<\/li>\n<li><b><\/b><strong><b>M\u00e1quina de separa\u00e7\u00e3o magn\u00e9tica: <\/b><\/strong>A JXSC fabrica m\u00e1quinas separadoras magn\u00e9ticas personalizadas, adaptadas aos requisitos espec\u00edficos do projeto e \u00e0s composi\u00e7\u00f5es minerais.<\/li>\n<\/ul>\n<h3>Caracter\u00edsticas dos separadores magn\u00e9ticos<\/h3>\n<ul>\n<li><strong>Recupera\u00e7\u00e3o mineral melhorada:<\/strong> Os separadores magn\u00e9ticos da JXSC ajudam a melhorar o rendimento mineral e as taxas de recupera\u00e7\u00e3o, levando a uma maior rentabilidade para as opera\u00e7\u00f5es de minera\u00e7\u00e3o.<\/li>\n<li><strong>Remo\u00e7\u00e3o eficiente de contaminantes:<\/strong> Ao eliminar as part\u00edculas ferrosas indesej\u00e1veis, o equipamento garante a pureza e a qualidade dos produtos minerais finais.<\/li>\n<li><strong>Desempenho fi\u00e1vel:<\/strong> Os produtos da JXSC s\u00e3o conhecidos pela sua robustez, fiabilidade e facilidade de manuten\u00e7\u00e3o, garantindo um tempo de inatividade m\u00ednimo e um aumento da produtividade.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Como profissional <a href=\"\/pt\/\">fabricante de solu\u00e7\u00f5es minerais e equipamento mineiro<\/a>A experi\u00eancia da JXSC em Separa\u00e7\u00e3o Magn\u00e9tica \u00e9 vital na otimiza\u00e7\u00e3o dos processos mineiros, aumentando a efici\u00eancia e contribuindo para o sucesso dos projectos mineiros em todo o mundo. O seu compromisso com a inova\u00e7\u00e3o e a satisfa\u00e7\u00e3o do cliente faz com que seja a escolha preferida das empresas da ind\u00fastria mineira que procuram solu\u00e7\u00f5es de separa\u00e7\u00e3o magn\u00e9tica fi\u00e1veis e de alta qualidade.<\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction: Magnetic separation is a crucial mineral processing method for mineral beneficiation based on differences in magnetic properties; it is widely applied in the processing of iron ores, rare metal ores, and non-metallic minerals. A mineral&#8217;s magnetic properties are primarily determined by its composition, structure, and mode of occurrence, with significant variations in specific magnetic &hellip; <a href=\"https:\/\/www.jxscmachine.com\/pt\/new\/mineral-magnetic-classification-magnetic-separation\/\" class=\"more-link\">Continuar a ler <span class=\"screen-reader-text\">Classifica\u00e7\u00e3o magn\u00e9tica de minerais e separa\u00e7\u00e3o magn\u00e9tica<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":21083,"parent":0,"menu_order":138,"comment_status":"closed","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"ngg_post_thumbnail":0,"footnotes":""},"categories":[],"tags":[],"class_list":["post-21082","new","type-new","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mineral Magnetic Classification and Magnetic Separation - 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