{"id":17119,"date":"2020-10-14T14:06:25","date_gmt":"2020-10-14T06:06:25","guid":{"rendered":"https:\/\/www.jxscmachine.com\/?post_type=new&p=17119"},"modified":"2021-07-08T14:46:45","modified_gmt":"2021-07-08T06:46:45","slug":"processus-denrichissement-du-talc","status":"publish","type":"new","link":"https:\/\/www.jxscmachine.com\/fr\/new\/talc-beneficiation-process\/","title":{"rendered":"Processus d'enrichissement du talc"},"content":{"rendered":"

Talc<\/strong> est largement utilis\u00e9, et le minerai de talc pur est rare, g\u00e9n\u00e9ralement accompagn\u00e9 d'autres min\u00e9raux, tels que la chlorite, la magn\u00e9site, la tr\u00e9molite, la dolomite, la sid\u00e9rite, le quartz, la pyrite, etc. Ces min\u00e9raux modifient la composition chimique du minerai et affectent consid\u00e9rablement les propri\u00e9t\u00e9s physiques du talc. Afin d'am\u00e9liorer la qualit\u00e9 et de r\u00e9pondre aux besoins de la production industrielle, le talc doit \u00eatre transform\u00e9.
\n\"talc\"<\/p>\n

Propri\u00e9t\u00e9 du talc<\/h2>\n

Talc<\/a> Le talc doit son nom \u00e0 sa douceur et \u00e0 sa forte onctuosit\u00e9. Le talc poss\u00e8de une grande capacit\u00e9 d'isolation \u00e9lectrique et thermique, un point de fusion \u00e9lev\u00e9 et une forte capacit\u00e9 d'adsorption d'huile, ce qui lui conf\u00e8re un large \u00e9ventail d'applications dans l'industrie. Parmi celles-ci, le talc consomm\u00e9 par l'industrie du papier repr\u00e9sente environ 60% du total. En outre, le talc est \u00e9galement largement utilis\u00e9 dans de nombreux domaines tels que la m\u00e9decine, l'industrie chimique, les textiles, la c\u00e9ramique et la sculpture. L'industrie du papier exige une faible teneur en fer dans le talc. Par cons\u00e9quent, le fer, le mangan\u00e8se, nickel<\/a>et le titane contenus dans le minerai brut doivent \u00eatre s\u00e9par\u00e9s pour obtenir un talc de haute qualit\u00e9.<\/p>\n

1. La flottation<\/h2>\n

En raison de la flottabilit\u00e9 naturelle du talc, il peut \u00eatre flott\u00e9 avec un collecteur d'huile d'hydrocarbure. Le collecteur couramment utilis\u00e9 est le k\u00e9ros\u00e8ne, agent moussant de l'huile de flottation. Le processus de flottation du talc est relativement simple, ne n\u00e9cessitant qu'une s\u00e9lection grossi\u00e8re et une s\u00e9lection par balayage, et 3 \u00e0 4 s\u00e9lections. Cependant, le concentr\u00e9 de talc a une taille de particule fine et est difficile \u00e0 d\u00e9shydrater. machine de flottation<\/a><\/p>\n

2. Tri manuel<\/h2>\n

Le tri manuel est s\u00e9lectionn\u00e9 manuellement en fonction de la diff\u00e9rence de finesse du talc et des min\u00e9raux de la gangue. Le talc est bien lisse, plus la qualit\u00e9 est \u00e9lev\u00e9e, plus la douceur est grande, et il est facile \u00e0 identifier \u00e0 la main. La plupart des mines de talc nationales produisent souvent des blocs de talc de haute qualit\u00e9 par s\u00e9lection manuelle. Ces derni\u00e8res ann\u00e9es, les pays \u00e9trangers ont men\u00e9 des recherches fructueuses sur une machine de tri appel\u00e9e \"rappeller\", qui peut s\u00e9parer le talc de la gangue en fonction des diff\u00e9rents coefficients de frottement du minerai, afin de r\u00e9aliser la m\u00e9canisation de la s\u00e9lection manuelle du talc.<\/p>\n

3. Enrichissement \u00e9lectrostatique<\/h2>\n

Outre le talc, le talc contient \u00e9galement des min\u00e9raux tels que la magn\u00e9site, la magn\u00e9tite, la pyrite, la tr\u00e9molite, etc. La taille des particules incorpor\u00e9es est d'environ 0,5 mm. Dans un champ \u00e9lectrostatique, le talc est charg\u00e9 n\u00e9gativement et la magn\u00e9site est charg\u00e9e positivement. La magn\u00e9tite et la pyrpyrite sont de bons conducteurs, il est donc facile de s\u00e9parer les min\u00e9raux susmentionn\u00e9s dans un champ \u00e9lectrique. s\u00e9parateur \u00e9lectrique<\/a><\/p>\n

4. S\u00e9paration magn\u00e9tique<\/h2>\n

Outre la finesse et la puret\u00e9 exig\u00e9es pour le concentr\u00e9 de talc, celui-ci doit \u00e9galement pr\u00e9senter le num\u00e9ro 1 de Baidu. En raison de la pr\u00e9sence de min\u00e9raux ferreux color\u00e9s dans le minerai, la flottation seule ne suffit pas. Il est parfois n\u00e9cessaire de recourir \u00e0 la s\u00e9paration magn\u00e9tique pour \u00e9liminer les mat\u00e9riaux contenant du fer. L'Union sovi\u00e9tique et le Canada ont des exemples de s\u00e9paration magn\u00e9tique pour l'\u00e9limination du fer. L'utilisation de la s\u00e9paration magn\u00e9tique par voie humide peut r\u00e9duire la teneur en fer du concentr\u00e9 de talc de 4-5% \u00e0 0,7. s\u00e9parateur magn\u00e9tique <\/a><\/p>","protected":false},"excerpt":{"rendered":"

Le talc est largement utilis\u00e9, et le minerai de talc pur est rare, g\u00e9n\u00e9ralement accompagn\u00e9 d'autres min\u00e9raux, tels que la chlorite, la magn\u00e9site, la tr\u00e9molite, la dolomite, la sid\u00e9rite, le quartz, la pyrite, etc. Ces min\u00e9raux modifient la composition chimique du minerai et affectent consid\u00e9rablement les propri\u00e9t\u00e9s physiques du talc. Afin d'am\u00e9liorer la qualit\u00e9 et de r\u00e9pondre aux besoins de la production industrielle, ... Continuer la lecture de Processus d'enrichissement du talc<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":17120,"parent":0,"menu_order":229,"comment_status":"closed","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"ngg_post_thumbnail":0,"footnotes":""},"categories":[],"tags":[],"class_list":["post-17119","new","type-new","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nTalc Beneficiation Process - JXSC Machine<\/title>\n<meta name=\"description\" content=\"Talc is widely used, and pure talc ore is rare, usually accompanied by other minerals, such as chlorite, magnesite, tremolite, dolomite, siderite, quartz, pyrite, etc.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.jxscmachine.com\/fr\/nouveau\/processus-denrichissement-du-talc\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Talc Beneficiation Process - 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