{"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":"factores-de-flotacao-dos-minerios-de-chumbo-e-zinco-que-afectam-os-reagentes","status":"publish","type":"new","link":"https:\/\/www.jxscmachine.com\/pt\/new\/lead-zinc-ores-flotation-factors-affecting-reagents\/","title":{"rendered":"Flota\u00e7\u00e3o de min\u00e9rios de chumbo-zinco Factores que afectam: Reagentes"},"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\/pt\/novo\/seis-factores-que-afectam-a-flotacao-do-minerio-de-chumbo-e-zinco\/\">seis factores que afectam a flota\u00e7\u00e3o de min\u00e9rio de chumbo-zinco<\/a>, incluindo <strong>finura da moagem, concentra\u00e7\u00e3o da lama, reagentes, ajuste da espuma, influ\u00eancia da temperatura, <\/strong>e<strong> influ\u00eancia da qualidade da \u00e1gua.<\/strong>&nbsp;<\/p>\n<p><strong>Reagentes de flota\u00e7\u00e3o<\/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>e<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>Reagentes de flota\u00e7\u00e3o<\/h2>\n<p>Os reagentes de flota\u00e7\u00e3o s\u00e3o um tipo de produto qu\u00edmico utilizado no processo de flota\u00e7\u00e3o para alterar as propriedades da superf\u00edcie dos minerais, ajustar o ambiente da pasta e melhorar a intera\u00e7\u00e3o entre os minerais e as bolhas. Actuam sobre os minerais ou bolhas na pasta para promover a combina\u00e7\u00e3o ou separa\u00e7\u00e3o de minerais e bolhas, conseguindo assim a separa\u00e7\u00e3o e o enriquecimento dos minerais.<\/p>\n<p>Os reagentes de flota\u00e7\u00e3o interagem com a superf\u00edcie do mineral, componentes qu\u00edmicos ou bolhas na lama, alteram a hidrofobicidade ou a hidrofilicidade da superf\u00edcie do mineral, controlam se o mineral pode combinar-se com as bolhas e, em seguida, conseguem a triagem do mineral.<strong><b>&nbsp;O seu principal mecanismo de a\u00e7\u00e3o inclui:<\/b><\/strong><\/p>\n<ul>\n<li><b><\/b><strong><b>Adsor\u00e7\u00e3o: <\/b><\/strong>Os colectores alteram as propriedades da superf\u00edcie dos minerais atrav\u00e9s da adsor\u00e7\u00e3o na superf\u00edcie do mineral, tornando-o hidrof\u00f3bico.<\/li>\n<li><b><\/b><strong><b>Rea\u00e7\u00e3o qu\u00edmica:&nbsp;<\/b><\/strong>Alguns reagentes alteram as propriedades qu\u00edmicas da superf\u00edcie dos minerais e afectam o seu comportamento de flota\u00e7\u00e3o ao reagirem quimicamente com a superf\u00edcie do mineral.<\/li>\n<li><b><\/b><strong><b>Regula\u00e7\u00e3o da carga<\/b><\/strong>Os reguladores de pH ajustam as propriedades de carga da superf\u00edcie mineral, alterando a acidez e a alcalinidade da lama, afectando assim o efeito dos reagentes de flota\u00e7\u00e3o.<\/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=\"Reagentes de flota\u00e7\u00e3o\" 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>Ajuste dos reagentes<\/h2>\n<p>O ajuste dos reagentes no processo de flota\u00e7\u00e3o inclui <strong><b>efic\u00e1cia, adi\u00e7\u00e3o razo\u00e1vel, utiliza\u00e7\u00e3o mista, ajustamento da concentra\u00e7\u00e3o de reagentes na pasta,<\/b><\/strong>&nbsp;e <strong><b>que controla o valor do pH.<\/b><\/strong><strong><b>&nbsp;<\/b><\/strong><\/p>\n<p>&nbsp;<\/p>\n<h3>1. Exerting The Efficacy<\/h3>\n<p>A dosagem e o efeito do mesmo reagente s\u00e3o diferentes quando utilizado de formas diferentes. Isto \u00e9 especialmente \u00f3bvio para os reagentes insol\u00faveis em \u00e1gua ou com baixa solubilidade em \u00e1gua.<strong><b>&nbsp;As principais medidas para exercer a efic\u00e1cia s\u00e3o:<\/b><\/strong><\/p>\n<ul>\n<li><b><\/b><strong><b>Prepara\u00e7\u00e3o com solvente<\/b><\/strong><br \/>\nOs colectores de \u00f3leos neutros insol\u00faveis em \u00e1gua apresentam-se como got\u00edculas maiores na \u00e1gua, o que n\u00e3o s\u00f3 tem um efeito negativo como tamb\u00e9m aumenta a dosagem. Se forem dissolvidos em solventes especiais, como o \u00e1cido oleico dissolvido em querosene, o efeito de recolha pode ser melhorado.<\/li>\n<li><b><\/b><strong><b>Preparado em emuls\u00f5es<\/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>Saponifica\u00e7\u00e3o<\/b><\/strong><br \/>\nPara os colectores de \u00e1cidos gordos, a saponifica\u00e7\u00e3o \u00e9 o m\u00e9todo mais utilizado. Por exemplo, na flota\u00e7\u00e3o de min\u00e9rio de ferro, quando se prepara o tall oil (coletor), para o saponificar, adiciona-se cerca de 10% de carbonato de s\u00f3dio, que \u00e9 aquecido para fazer uma solu\u00e7\u00e3o de sab\u00e3o quente antes da adi\u00e7\u00e3o.<\/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>Sele\u00e7\u00e3o dos pontos de dosagem<\/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\u00e9todo de dosagem<\/b><\/strong><br \/>\nO reagente pode ser adicionado de uma s\u00f3 vez ou em lotes. No caso da adi\u00e7\u00e3o \u00fanica, a concentra\u00e7\u00e3o do reagente \u00e9 mais elevada num ponto, o que pode aumentar a velocidade de flutua\u00e7\u00e3o inicial e \u00e9 conveniente adicionar, pelo que \u00e9 frequentemente utilizado. Em lotes ou ponto a ponto, a concentra\u00e7\u00e3o de reagente ao longo da linha de flota\u00e7\u00e3o pode ser consistente. Para as seguintes situa\u00e7\u00f5es, a adi\u00e7\u00e3o de lotes \u00e9 adoptada: Primeiro, o reagente que \u00e9 facilmente transportado pela espuma. Por exemplo, quando o \u00e1cido oleico \u00e9 utilizado como coletor, tem propriedades de forma\u00e7\u00e3o de espuma. Em segundo lugar, o reagente que \u00e9 f\u00e1cil de reagir na pasta, como o di\u00f3xido de carbono, o di\u00f3xido de enxofre, etc., reagir\u00e1 rapidamente e falhar\u00e1 se for adicionado apenas num ponto. Em terceiro lugar, o reagente que requer um controlo rigoroso da dosagem, como o sulfureto de s\u00f3dio, perder\u00e1 a sua seletividade se a concentra\u00e7\u00e3o local for demasiado elevada, pelo que deve ser adicionado em lotes.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>4. Slurry pH Control<\/h3>\n<p>O valor do pH da lama \u00e9 um fator importante no processo de flota\u00e7\u00e3o. Por um lado, afecta as propriedades de flota\u00e7\u00e3o da superf\u00edcie mineral; por outro lado, afecta os efeitos de v\u00e1rios reagentes de flota\u00e7\u00e3o. Cada min\u00e9rio tem um intervalo de pH mais adequado para a flota\u00e7\u00e3o.<\/p>\n<p>A adi\u00e7\u00e3o e o ajuste dos reagentes s\u00e3o factores importantes no processo de flota\u00e7\u00e3o, que t\u00eam um impacto significativo na efic\u00e1cia dos reagentes e melhoram os indicadores de flota\u00e7\u00e3o. Especialmente para <a href=\"https:\/\/www.jxscmachine.com\/pt\/equipamento-de-flotacao\/maquina-de-flotacao\/\">m\u00e1quinas de flota\u00e7\u00e3o de tanque \u00fanico<\/a>Os trabalhadores da flota\u00e7\u00e3o precisam de adicionar reagentes de forma mais precisa, de acordo com a concentra\u00e7\u00e3o e o tamanho das part\u00edculas do min\u00e9rio. Os reagentes de flota\u00e7\u00e3o s\u00e3o vitais para a flota\u00e7\u00e3o de min\u00e9rios de chumbo e zinco. A sua adi\u00e7\u00e3o e utiliza\u00e7\u00e3o razo\u00e1veis afectam diretamente a efici\u00eancia da flota\u00e7\u00e3o e o efeito da separa\u00e7\u00e3o dos minerais.<\/p>\n<p>&nbsp;<\/p>\n<h2>Conclus\u00e3o<\/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\/pt\/solucao\/\">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\/pt\/new\/lead-zinc-ores-flotation-factors-affecting-reagents\/\" class=\"more-link\">Continuar a ler <span class=\"screen-reader-text\">Flota\u00e7\u00e3o de min\u00e9rios de chumbo-zinco Factores que afectam: Reagentes<\/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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