{"id":22747,"date":"2024-09-11T14:24:20","date_gmt":"2024-09-11T06:24:20","guid":{"rendered":"https:\/\/www.jxscmachine.com\/?post_type=new&#038;p=22747"},"modified":"2026-08-31T15:58:48","modified_gmt":"2026-08-31T07:58:48","slug":"facteurs-de-flottation-des-minerais-de-plomb-et-de-zinc-affectant-les-reactifs","status":"publish","type":"new","link":"https:\/\/www.jxscmachine.com\/fr\/new\/lead-zinc-ores-flotation-factors-affecting-reagents\/","title":{"rendered":"Flottation des minerais de plomb et de zinc Facteurs affectant : R\u00e9actifs"},"content":{"rendered":"<p>Lead-zinc ore flotation is a common ore dressing method used to separate lead and zinc minerals and other associated minerals. The effect of the flotation process is affected by many factors. We have previously described the <a href=\"https:\/\/www.jxscmachine.com\/fr\/nouveau\/six-facteurs-affectant-la-flottation-du-minerai-de-plomb-et-de-zinc\/\">six facteurs affectant la flottation du minerai de plomb et de zinc<\/a>, y compris <strong>finesse du broyage, concentration de la boue, r\u00e9actifs, ajustement de la mousse, influence de la temp\u00e9rature, <\/strong>et<strong> l'influence de la qualit\u00e9 de l'eau.<\/strong>&nbsp;<\/p>\n<p><strong>R\u00e9actifs de flottation<\/strong> play a critical role in lead-zinc ore flotation. Proper reagent selection, dosage, addition sequence, dosing point, and pulp pH control can significantly improve mineral selectivity, recovery, and concentrate quality. Therefore, understanding how flotation reagents work and how to adjust them is essential for achieving efficient lead-zinc mineral separation.<\/p>\n<p>This article focuses on <strong>flotation reagents <\/strong>et<strong> reagent adjustment<\/strong> in lead-zinc ore flotation, including their working mechanisms, preparation methods, mixed use, dosing strategies, and slurry pH control.<\/p>\n<p><strong>&nbsp;<\/strong><\/p>\n<h2>R\u00e9actifs de flottation<\/h2>\n<p>Les r\u00e9actifs de flottation sont un type de produit chimique utilis\u00e9 dans le processus de flottation pour modifier les propri\u00e9t\u00e9s de surface des min\u00e9raux, ajuster l'environnement de la p\u00e2te et am\u00e9liorer l'interaction entre les min\u00e9raux et les bulles. Ils agissent sur les min\u00e9raux ou les bulles dans la p\u00e2te pour favoriser la combinaison ou la s\u00e9paration des min\u00e9raux et des bulles, permettant ainsi la s\u00e9paration et l'enrichissement des min\u00e9raux.<\/p>\n<p>Les r\u00e9actifs de flottation interagissent avec la surface du min\u00e9ral, les composants chimiques ou les bulles dans la boue, modifient l'hydrophobicit\u00e9 ou l'hydrophilie de la surface du min\u00e9ral, contr\u00f4lent si le min\u00e9ral peut se combiner avec les bulles, puis r\u00e9alisent le tri des min\u00e9raux.<strong><b>&nbsp;Son principal m\u00e9canisme d'action est le suivant<\/b><\/strong><\/p>\n<ul>\n<li><b><\/b><strong><b>Adsorption : <\/b><\/strong>Les collecteurs modifient les propri\u00e9t\u00e9s de surface des min\u00e9raux en s'adsorbant sur leur surface, ce qui les rend hydrophobes.<\/li>\n<li><b><\/b><strong><b>R\u00e9action chimique :&nbsp;<\/b><\/strong>Certains r\u00e9actifs modifient les propri\u00e9t\u00e9s chimiques de surface des min\u00e9raux et affectent leur comportement de flottation en r\u00e9agissant chimiquement avec la surface du min\u00e9ral.<\/li>\n<li><b><\/b><strong><b>R\u00e9gulation de la charge<\/b><\/strong>Les r\u00e9gulateurs de pH ajustent les propri\u00e9t\u00e9s de charge de la surface min\u00e9rale en modifiant l'acidit\u00e9 et l'alcalinit\u00e9 de la boue, ce qui affecte l'effet des r\u00e9actifs de flottation.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2024\/09\/Flotation-Reagents.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-22749\" src=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2024\/09\/Flotation-Reagents.jpg\" alt=\"R\u00e9actifs de flottation\" width=\"1200\" height=\"1200\" srcset=\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2024\/09\/Flotation-Reagents.jpg 1200w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2024\/09\/Flotation-Reagents-768x768.jpg 768w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2024\/09\/Flotation-Reagents-75x75.jpg 75w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2024\/09\/Flotation-Reagents-12x12.jpg 12w, https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2024\/09\/Flotation-Reagents-150x150.jpg 150w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h2>Ajustement des r\u00e9actifs<\/h2>\n<p>L'ajustement des r\u00e9actifs dans le processus de flottation comprend <strong><b>l'efficacit\u00e9, l'addition raisonnable, l'utilisation mixte, l'ajustement de la concentration des r\u00e9actifs dans la boue,<\/b><\/strong>&nbsp;et <strong><b>en contr\u00f4lant la valeur du pH.<\/b><\/strong><strong><b>&nbsp;<\/b><\/strong><\/p>\n<p>&nbsp;<\/p>\n<h3>1. Exerting The Efficacy<\/h3>\n<p>Le dosage et l'effet d'un m\u00eame r\u00e9actif sont diff\u00e9rents lorsqu'il est utilis\u00e9 de diff\u00e9rentes mani\u00e8res. Ceci est particuli\u00e8rement \u00e9vident pour les r\u00e9actifs qui sont insolubles dans l'eau ou qui ont une faible solubilit\u00e9 dans l'eau.<strong><b>&nbsp;Les principales mesures d'efficacit\u00e9 sont les suivantes :<\/b><\/strong><\/p>\n<ul>\n<li><b><\/b><strong><b>Pr\u00e9paration avec le solvant<\/b><\/strong><br \/>\nLes collecteurs d'huile neutre insolubles dans l'eau apparaissent sous forme de gouttelettes plus grosses dans l'eau, ce qui a non seulement des effets m\u00e9diocres, mais augmente \u00e9galement le dosage. S'ils sont dissous dans des solvants sp\u00e9ciaux, tels que l'acide ol\u00e9ique dissous dans le k\u00e9ros\u00e8ne, l'effet de collecte peut \u00eatre am\u00e9lior\u00e9.<\/li>\n<li><b><\/b><strong><b>Pr\u00e9par\u00e9s en \u00e9mulsions<\/b><\/strong><br \/>\nSome solid reagents that are not easily soluble can be prepared into emulsions. For example, lime has a very low solubility in water, so it can be ground to 0.1~0. 01mm, mixed with water to form lime milk and added.<\/li>\n<li><b><\/b><strong><b>Saponification<\/b><\/strong><br \/>\nPour les collecteurs d'acides gras, la saponification est la m\u00e9thode la plus couramment utilis\u00e9e. Par exemple, dans la flottation du minerai de fer, lors de la pr\u00e9paration du tall oil (collecteur), pour le saponifier, on ajoute environ 10% de carbonate de sodium, et on le chauffe pour obtenir une solution de savon chaud avant de l'ajouter.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>2. Mixed Use of Drugs<\/h3>\n<p>Mixed use of drugs has been widely used in practice. The mixed use of various collectors is based on the unevenness of the mineral surface and the synergistic effect between the drugs. For example, the mixed use of xanthate with different warp chain lengths improves its efficacy. When different types of collectors are mixed, one collector is often used as the main one, and the other is used as an &#8220;auxiliary collector&#8221; or &#8220;enhancer&#8221;. The mixed use of inhibitors is even more common. For example, hydride is mixed with zinc sulfate, sulfite is mixed with zinc sulfate, sulfur dioxide is mixed with starch, etc. The purpose is to enhance the inhibitory efficiency of these agents. Mixing frothers can also improve their efficacy.<\/p>\n<p>&nbsp;<\/p>\n<h3>3. Reasonable Addition of Reagents<\/h3>\n<p>The purpose of reasonable addition of reagents is to ensure that the optimal concentration of reagents is maintained in the slurry. According to the characteristics of the ore, the properties of the reagents, and the requirements of the process, appropriate dosing points can be selected, and different dosing methods can be used to achieve the purpose of maintaining the optimal reagent concentration in the slurry. There are often many types of flotation reagents added to the slurry, plus the various original components of the slurry. The interactions between them are very complex and mutually restrictive. When a reagent system is selected, it is often when these interactions reach a certain balance. Improper use of reagents, sometimes as long as one reagent is added more or less, may break the balance and cause chaos in the entire process.<\/p>\n<ul>\n<li><b><\/b><strong><b>S\u00e9lection des points de dosage<\/b><\/strong><br \/>\nThe dosing point has a great relationship with the effectiveness of the reagents. PH adjusters and inhibitors are mostly added to the mill. Some relatively insoluble collectors can also be added to the mill. Reagents that can react and offset each other are required to be added separately. Generally, the second reagent is added after the first reagent is fully effective. For example, the addition of copper sulfate and xanthate, calcium chloride, and oleic acid all require a certain order.<\/li>\n<li><b><\/b><strong><b>M\u00e9thode de dosage<\/b><\/strong><br \/>\nLe r\u00e9actif peut \u00eatre ajout\u00e9 en une seule fois ou par lots. Dans le cas d'un ajout unique, la concentration de r\u00e9actif est plus \u00e9lev\u00e9e en un point, ce qui peut augmenter la vitesse de flottation initiale et est pratique \u00e0 ajouter, c'est pourquoi cette m\u00e9thode est souvent utilis\u00e9e. Dans les lots ou point par point, la concentration de r\u00e9actif le long de la ligne de flottation peut \u00eatre coh\u00e9rente. Dans les situations suivantes, l'addition par lots est adopt\u00e9e : Premi\u00e8rement, le r\u00e9actif est facilement emport\u00e9 par la mousse. Par exemple, lorsque l'acide ol\u00e9ique est utilis\u00e9 comme collecteur, il a des propri\u00e9t\u00e9s moussantes. Deuxi\u00e8mement, le r\u00e9actif qui r\u00e9agit facilement dans la suspension, comme le dioxyde de carbone, le dioxyde de soufre, etc., r\u00e9agira rapidement et \u00e9chouera s'il est ajout\u00e9 en un seul point. Troisi\u00e8mement, le r\u00e9actif qui n\u00e9cessite un contr\u00f4le strict du dosage, tel que le sulfure de sodium, perdra sa s\u00e9lectivit\u00e9 si la concentration locale est trop importante, il doit donc \u00eatre ajout\u00e9 par lots.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>4. Slurry pH Control<\/h3>\n<p>La valeur du pH de la boue est un facteur important dans le processus de flottation. D'une part, elle affecte les propri\u00e9t\u00e9s de flottation de la surface min\u00e9rale et, d'autre part, les effets des divers r\u00e9actifs de flottation. Chaque minerai a une plage de pH plus appropri\u00e9e pour la flottation.<\/p>\n<p>L'ajout et l'ajustement des r\u00e9actifs sont des facteurs importants dans le processus de flottation, qui ont un impact significatif sur l'efficacit\u00e9 des r\u00e9actifs et am\u00e9liorent les indicateurs de flottation. En particulier pour les <a href=\"https:\/\/www.jxscmachine.com\/fr\/equipement-de-flottation\/machine-de-flottation\/\">machines de flottation \u00e0 r\u00e9servoir unique<\/a>Les ouvriers charg\u00e9s de la flottation doivent ajouter des r\u00e9actifs de mani\u00e8re plus pr\u00e9cise en fonction de la concentration et de la taille des particules du minerai. Les r\u00e9actifs de flottation sont essentiels \u00e0 la flottation des minerais de plomb et de zinc. Leur ajout et leur utilisation raisonnables affectent directement l'efficacit\u00e9 de la flottation et l'effet de la s\u00e9paration des min\u00e9raux.<\/p>\n<p>&nbsp;<\/p>\n<h2>Conclusion<\/h2>\n<p><strong>Flotation reagents are one of the most important factors affecting lead-zinc ore flotation.<\/strong> Their performance depends not only on reagent type but also on preparation, dosage, combination, addition point, addition sequence, and slurry pH.<\/p>\n<p>Collectors promote the hydrophobicity of target minerals, depressants selectively inhibit unwanted minerals, activators improve the floatability of specific minerals, frothers control the froth phase, and pH regulators establish a suitable pulp environment. The interaction of these reagents determines the selectivity and efficiency of the flotation process.<\/p>\n<p>For this reason, successful lead-zinc flotation requires a <strong>balanced reagent system rather than simply increasing reagent dosage<\/strong>. By selecting suitable reagents, optimizing their preparation and dosage, applying appropriate staged addition, and maintaining stable slurry pH, <a href=\"https:\/\/www.jxscmachine.com\/fr\/solution\/\">mineral processing plants<\/a> can improve flotation selectivity, concentrate quality, recovery, and overall reagent efficiency.<\/p>\n<p>In practice, the optimal reagent scheme should be determined through <strong>ore mineralogy, laboratory flotation tests, and plant-scale operating conditions<\/strong>. A well-designed reagent system is essential for achieving stable and efficient lead-zinc mineral separation.<\/p>","protected":false},"excerpt":{"rendered":"<p>Lead-zinc ore flotation is a common ore dressing method used to separate lead and zinc minerals and other associated minerals. The effect of the flotation process is affected by many factors. We have previously described the six factors that affect lead-zinc ore flotation, including grinding fineness, slurry concentration, reagents, foam adjustment, temperature influence, and influence &hellip; <a href=\"https:\/\/www.jxscmachine.com\/fr\/new\/lead-zinc-ores-flotation-factors-affecting-reagents\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Flottation des minerais de plomb et de zinc Facteurs affectant : R\u00e9actifs<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":22749,"parent":0,"menu_order":96,"comment_status":"closed","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"ngg_post_thumbnail":0,"footnotes":""},"categories":[],"tags":[],"class_list":["post-22747","new","type-new","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Lead-zinc Ores Flotation Factors Affecting: Reagents - 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