{"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":"classification-magnetique-des-mineraux-separation-magnetique","status":"publish","type":"new","link":"https:\/\/www.jxscmachine.com\/fr\/new\/mineral-magnetic-classification-magnetic-separation\/","title":{"rendered":"Classification magn\u00e9tique des min\u00e9raux et s\u00e9paration magn\u00e9tique"},"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>Les propri\u00e9t\u00e9s magn\u00e9tiques permettent de classer les min\u00e9raux en fonction de leur susceptibilit\u00e9 magn\u00e9tique sp\u00e9cifique. Lors de la s\u00e9paration magn\u00e9tique, plus la diff\u00e9rence de susceptibilit\u00e9 magn\u00e9tique sp\u00e9cifique des min\u00e9raux est importante, plus la s\u00e9paration est facile.<\/p>\n<h3>According to Magnetism<\/h3>\n<p>Le magn\u00e9tisme peut \u00eatre consid\u00e9r\u00e9 comme le r\u00e9sultat du mouvement des particules charg\u00e9es dans la mati\u00e8re et constitue l'une des propri\u00e9t\u00e9s fondamentales de la mati\u00e8re. Toutes les substances pr\u00e9sentes dans la nature ont diff\u00e9rents degr\u00e9s de magn\u00e9tisme ; la plupart ont un magn\u00e9tisme tr\u00e8s faible et seules quelques unes ont un magn\u00e9tisme fort. En termes de magn\u00e9tisme, la mati\u00e8re peut \u00eatre divis\u00e9e en trois cat\u00e9gories :<\/p>\n<ol>\n<li><strong>Substance paramagn\u00e9tique<\/strong><\/li>\n<li><strong>Substance diamagn\u00e9tique<\/strong><\/li>\n<li><strong>Substances ferromagn\u00e9tiques (ferrimagn\u00e9tiques, antiferromagn\u00e9tiques)<\/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=\"min\u00e9raux magn\u00e9tiques\" 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. Min\u00e9raux fortement magn\u00e9tiques<\/h4>\n<p>Sa susceptibilit\u00e9 magn\u00e9tique sp\u00e9cifique X est sup\u00e9rieure \u00e0 3000\u00d710-6 centim\u00e8tres cubes\/gramme. Il peut \u00eatre s\u00e9lectionn\u00e9 dans un s\u00e9parateur magn\u00e9tique faible avec une intensit\u00e9 de champ magn\u00e9tique H = 7200~136000 A\/m, et c'est un min\u00e9ral facile \u00e0 s\u00e9lectionner. Il existe tr\u00e8s peu de min\u00e9raux appartenant \u00e0 cette cat\u00e9gorie. Il s'agit principalement de la magn\u00e9tite, de la magh\u00e9mite (h\u00e9matite gamma), de la magn\u00e9tite de titane, de la pyrrhotite, du spinelle de zinc et de fer, etc. La plupart de ces min\u00e9raux sont ferrimagn\u00e9tiques.<\/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=\"Min\u00e9raux fortement magn\u00e9tiques\" width=\"676\" height=\"497\"><\/a><\/p>\n<p><strong><b>Caract\u00e9ristiques magn\u00e9tiques des min\u00e9raux fortement magn\u00e9tiques<\/b><\/strong><\/p>\n<p>La magn\u00e9tite peut \u00eatre utilis\u00e9e comme repr\u00e9sentante des min\u00e9raux fortement magn\u00e9tiques, qui est ferrimagn\u00e9tique ; en raison de la structure du domaine magn\u00e9tique interne (c'est-\u00e0-dire une petite zone d'aimantation spontan\u00e9e), ses propri\u00e9t\u00e9s magn\u00e9tiques sont relativement compliqu\u00e9es, et ses caract\u00e9ristiques magn\u00e9tiques sont r\u00e9sum\u00e9es comme suit :<\/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 Il existe une relation curviligne entre l'intensit\u00e9 de l'aimantation, le coefficient de susceptibilit\u00e9 magn\u00e9tique et l'intensit\u00e9 du champ magn\u00e9tique externe, et le coefficient de susceptibilit\u00e9 magn\u00e9tique n'est pas une constante. En plus d'\u00eatre li\u00e9e aux propri\u00e9t\u00e9s min\u00e9rales, l'aimantation est \u00e9galement li\u00e9e \u00e0 la variation du champ magn\u00e9tique externe ;<\/p>\n<p>\u2462 La magn\u00e9tite pr\u00e9sente un ph\u00e9nom\u00e8ne d'hyst\u00e9r\u00e9sis. Lorsqu'elle quitte le champ d'aimantation, elle conserve une certaine r\u00e9manence ; il est n\u00e9cessaire d'ajouter un champ magn\u00e9tique inverse pour \u00e9liminer cette r\u00e9manence. L'intensit\u00e9 du champ diamagn\u00e9tique Hc qui \u00e9limine compl\u00e8tement le magn\u00e9tisme r\u00e9siduel est appel\u00e9e force coercitive.<\/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>Sa susceptibilit\u00e9 magn\u00e9tique sp\u00e9cifique X est comprise entre (600~3000)x10-6 centim\u00e8tres cubes\/gramme. Les seuls min\u00e9raux appartenant \u00e0 cette cat\u00e9gorie sont l'ilm\u00e9nite et la pseudo-h\u00e9matite. A <a href=\"https:\/\/www.jxscmachine.com\/fr\/categorie\/separateur-magnetique\/\">s\u00e9parateur magn\u00e9tique<\/a> avec un champ magn\u00e9tique H de 160 000~480 000 A\/m est n\u00e9cessaire pour s\u00e9lectionner ces min\u00e9raux.<\/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=\"Min\u00e9raux moyennement magn\u00e9tiques\" width=\"677\" height=\"613\"><\/a><\/p>\n<p>&nbsp;<\/p>\n<h4>3. Weak Magnetic Minerals<\/h4>\n<p>Sa susceptibilit\u00e9 magn\u00e9tique X sp\u00e9cifique au mat\u00e9riau est comprise entre (15~600)x10-6 centim\u00e8tres cubes\/gramme. Il peut \u00eatre s\u00e9lectionn\u00e9 dans un s\u00e9parateur magn\u00e9tique puissant avec une intensit\u00e9 de champ magn\u00e9tique de H=480000~1600000A\/m. De nombreux min\u00e9raux appartiennent \u00e0 cette cat\u00e9gorie, dont certains sont faciles \u00e0 choisir et d'autres difficiles. Il s'agit principalement de la plupart des min\u00e9raux de fer et de mangan\u00e8se - h\u00e9matite, sp\u00e9cularite, limonite, sid\u00e9rite, minerai de mangan\u00e8se, pyrolusite, minerai de mangan\u00e8se, rhodochrosite, etc. ; de certains min\u00e9raux contenant du chrome et du tungst\u00e8ne - minerai de ferrochrome, wolframite, etc. ; de certains min\u00e9raux formant des roches - biotite, hornblende, \u00e9pidote, chlorite, serpentine, olivine, grenat, pyrox\u00e8ne, etc. La plupart de ces min\u00e9raux sont paramagn\u00e9tiques et certains sont antiferromagn\u00e9tiques.<\/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=\"Min\u00e9raux faiblement magn\u00e9tiques\" 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>Son coefficient de susceptibilit\u00e9 magn\u00e9tique sp\u00e9cifique est inf\u00e9rieur \u00e0 15\u00d710-6 centim\u00e8tres cubes\/gramme. Il existe de nombreux min\u00e9raux appartenant \u00e0 cette cat\u00e9gorie. Il s'agit principalement de min\u00e9raux m\u00e9talliques : chalcocite, gal\u00e8ne, sphal\u00e9rite, stibnite, scheelite, cassit\u00e9rite, or, etc. La plupart des min\u00e9raux non m\u00e9talliques - soufre, charbon, graphite, diamant, gypse, kaolin, etc. ; la plupart des min\u00e9raux formant des roches - quartz, feldspath, calcite, etc. Certains de ces min\u00e9raux sont paramagn\u00e9tiques, d'autres diamagn\u00e9tiques. Les min\u00e9raux dits non magn\u00e9tiques ne sont pas d\u00e9pourvus de magn\u00e9tisme mais sont extr\u00eamement petits.<\/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=\"Min\u00e9raux non magn\u00e9tiques\" width=\"630\" height=\"403\"><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>La classification ci-dessus est une classification approximative dans les conditions techniques modernes, car de nombreux facteurs influencent les propri\u00e9t\u00e9s magn\u00e9tiques des min\u00e9raux. M\u00eame les m\u00eames min\u00e9raux n'ont pas les m\u00eames propri\u00e9t\u00e9s magn\u00e9tiques.<\/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=\"\/fr\/\"><strong><b>Machine 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>S\u00e9parateur \u00e0 tambour magn\u00e9tique :&nbsp;<\/b><\/strong>Ces s\u00e9parateurs utilisent un tambour rotatif pour capturer et s\u00e9parer les particules magn\u00e9tiques du m\u00e9lange de minerai. Ils permettent d'\u00e9liminer efficacement les traces de fer et autres contaminants ferromagn\u00e9tiques.<\/li>\n<li><b><\/b><strong><b>Poulie magn\u00e9tique : <\/b><\/strong>Utilis\u00e9es pour extraire en continu les m\u00e9taux ferreux des mat\u00e9riaux transport\u00e9s sur les bandes transporteuses, les poulies magn\u00e9tiques sont essentielles dans les secteurs du recyclage et de la manutention en vrac.<\/li>\n<li><b><\/b><strong><b>S\u00e9parateur magn\u00e9tique Overband : <\/b><\/strong>Con\u00e7us pour attirer et \u00e9liminer les m\u00e9taux ferreux ind\u00e9sirables des mat\u00e9riaux transport\u00e9s, les s\u00e9parateurs Overband sont essentiels pour assurer le bon fonctionnement des \u00e9quipements en aval.<\/li>\n<li><b><\/b><strong><b>Grille magn\u00e9tique : <\/b><\/strong>Ces s\u00e9parateurs sont constitu\u00e9s d'une s\u00e9rie de tubes magn\u00e9tiques dispos\u00e9s en grille, qui s\u00e9parent efficacement les fines particules ferreuses des mat\u00e9riaux en suspension.<\/li>\n<li><b><\/b><strong><b>S\u00e9parateur magn\u00e9tique : <\/b><\/strong>JXSC fabrique des s\u00e9parateurs magn\u00e9tiques sur mesure, adapt\u00e9s aux exigences sp\u00e9cifiques des projets et aux compositions min\u00e9rales.<\/li>\n<\/ul>\n<h3>S\u00e9parateurs magn\u00e9tiques Caract\u00e9ristiques<\/h3>\n<ul>\n<li><strong>R\u00e9cup\u00e9ration am\u00e9lior\u00e9e des min\u00e9raux :<\/strong> Les s\u00e9parateurs magn\u00e9tiques de JXSC permettent d'am\u00e9liorer le rendement min\u00e9ral et les taux de r\u00e9cup\u00e9ration, ce qui se traduit par une plus grande rentabilit\u00e9 des op\u00e9rations mini\u00e8res.<\/li>\n<li><strong>\u00c9limination efficace des contaminants :<\/strong> En \u00e9liminant les particules ferreuses ind\u00e9sirables, l'\u00e9quipement garantit la puret\u00e9 et la qualit\u00e9 des produits min\u00e9raux finaux.<\/li>\n<li><strong>Des performances fiables :<\/strong> Les produits JXSC sont r\u00e9put\u00e9s pour leur robustesse, leur fiabilit\u00e9 et leur facilit\u00e9 d'entretien, ce qui permet de r\u00e9duire au minimum les temps d'arr\u00eat et d'augmenter la productivit\u00e9.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>En tant que professionnel <a href=\"\/fr\/\">solution min\u00e9rale et fabricant d'\u00e9quipement minier<\/a>L'expertise de JXSC en mati\u00e8re de s\u00e9paration magn\u00e9tique est essentielle pour optimiser les processus miniers, am\u00e9liorer l'efficacit\u00e9 et contribuer \u00e0 la r\u00e9ussite des projets miniers dans le monde entier. Son engagement en faveur de l'innovation et de la satisfaction des clients en fait un choix privil\u00e9gi\u00e9 pour les entreprises de l'industrie mini\u00e8re qui recherchent des solutions de s\u00e9paration magn\u00e9tique fiables et de haute qualit\u00e9.<\/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\/fr\/new\/mineral-magnetic-classification-magnetic-separation\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Classification magn\u00e9tique des min\u00e9raux et s\u00e9paration magn\u00e9tique<\/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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