{"id":19886,"date":"2022-09-15T14:36:33","date_gmt":"2022-09-15T06:36:33","guid":{"rendered":"https:\/\/www.jxscmachine.com\/?post_type=new&p=19886"},"modified":"2026-04-27T14:40:41","modified_gmt":"2026-04-27T06:40:41","slug":"porque-utilizar-a-cauda-e-como-utiliza-la","status":"publish","type":"new","link":"https:\/\/www.jxscmachine.com\/pt\/new\/why-should-use-tailing-and-how-to-use-them\/","title":{"rendered":"Porque \u00e9 que se deve utilizar o Tailing e como utiliz\u00e1-lo?"},"content":{"rendered":"

Tailings, the low-value byproducts of mineral processing, constitute a major portion of industrial solid waste. Despite their limited economic viability in production, they hold significant untapped potential. With massive global mining operations for metals, coal, and non-metallic ores<\/strong>, tailings accumulate in enormous quantities\u2014posing environmental and safety risks while hindering sustainable mining practices.<\/p>\n

Comprehensive tailings utilization offers a solution to these challenges while unlocking new revenue streams for mining companies. Below, we explore the benefits of tailings repurposing and the most effective methods to achieve it.<\/p>\n

Why Should Tailings Be Put to Comprehensive Use?<\/h2>\n

Why should tailings be comprehensively utilized? We will explain this through the following four points:<\/strong><\/p>\n

1. Recyclable Resources are Abundant in Tailings<\/h3>\n

China’s main types of ore are co-associated ores, which account for 80% of the total mineral resources and are difficult to separate. In addition, the beneficiation and smelting technology of the early mines was relatively backward, and the economic conditions in different periods were also different. Usually, it could recover only one or some minerals in the ore. It makes non-ferrous, rare, precious metals, and many non-metallic minerals that remain in the tailings. They can be recycled and utilized with the current beneficiation technology to supplement the increasingly depleted mineral resources.<\/p>\n

2. Non-metal Resources are Abundant in Tailings<\/h3>\n

Devido \u00e0 eros\u00e3o, os rejeitos cont\u00eam uma grande quantidade de quartzo<\/a>, feldspato<\/a>anfib\u00f3lio, pirox\u00e9nio, calcite, dolomite, minerais de silicato e magn\u00e9sio.<\/strong> Os principais componentes qu\u00edmicos s\u00e3o sil\u00edcio, alum\u00ednio, c\u00e1lcio e magn\u00e9sio, etc.<\/strong>, em que o teor de sil\u00edcio e alum\u00ednio \u00e9 mais elevado. Por conseguinte, \u00e9 essencial utilizar plenamente os recursos dos rejeitos, nomeadamente os recursos n\u00e3o met\u00e1licos neles contidos.<\/p>\n

3. Environmental and Safety Hazards Demand Action<\/h3>\n

Atualmente, o principal m\u00e9todo de elimina\u00e7\u00e3o de rejeitos \u00e9 o armazenamento de rejeitos, que ocupa uma grande quantidade de terrenos agr\u00edcolas e florestais e destr\u00f3i a afeta\u00e7\u00e3o dos recursos terrestres na zona em que est\u00e1 localizado. Al\u00e9m disso, algumas f\u00e1bricas de processamento mineiro em \u00e1reas remotas ou f\u00e1bricas de processamento de pequena escala em cidades descarregam os rejeitos diretamente no ambiente natural, causando danos ambientais significativos. \u00c9 urgente consumir os rejeitos atrav\u00e9s de v\u00e1rios m\u00e9todos de utiliza\u00e7\u00e3o abrangente.<\/p>\n

4. High Economic Potential of Reprocessing<\/h3>\n

Para proteger os recursos minerais, manter o equil\u00edbrio ecol\u00f3gico e implementar um c\u00edrculo virtuoso, os pa\u00edses industrialmente desenvolvidos do mundo come\u00e7aram a construir \"ind\u00fastrias de mat\u00e9rias-primas secund\u00e1rias\" e alcan\u00e7aram resultados not\u00e1veis. Os rejeitos armazenados no meu pa\u00eds t\u00eam geralmente graus mais elevados, especialmente os rejeitos das d\u00e9cadas de 1950 e 1960, que t\u00eam maior valor de desenvolvimento e utiliza\u00e7\u00e3o. Al\u00e9m disso, em compara\u00e7\u00e3o com o desenvolvimento de novos fil\u00f5es, o custo de explora\u00e7\u00e3o dos rejeitos \u00e9 inferior e os resultados da explora\u00e7\u00e3o s\u00e3o mais exactos. Ao mesmo tempo, o transporte em torno dos bacia de rejeitos<\/strong> is convenient, and the infrastructure is relatively complete, which can make a large investment in infrastructure. The tailings in the tailings pond are relatively loose and fine in particle size. Only a small amount of crushing and grinding operations are required; the energy consumption is low, and the production cost is low.<\/p>\n

 <\/p>\n

\"esc\u00f3ria<\/a>
esc\u00f3ria de rejeitos<\/figcaption><\/figure>\n

 <\/p>\n

Quais s\u00e3o os m\u00e9todos de utiliza\u00e7\u00e3o abrangente dos rejeitos?<\/h2>\n

1. Secondary Mineral Separation<\/h3>\n

A quantidade total de rejeitos \u00e9 grande e existem muitos tipos. Os seguintes s\u00e3o rejeitos de ferro, rejeitos de cobre, rejeitos de chumbo-zinco e rejeitos de terras raras<\/strong> como exemplos a introduzir:<\/p>\n

Para a separa\u00e7\u00e3o secund\u00e1ria de rejeitos de ferro<\/strong><\/em>, there are already relatively mature processes to recover the iron minerals in them and obtain iron concentrates of better quality. Because of the weak magnetic properties of iron tailings, pre-concentration-magnetic separation-reverse flotation and magnetization roasting-magnetic separation processes have become popular secondary separation methods for iron tailings. These two methods have low TFe grades. The treatment effect of iron tailings with fine embedded particle size is relatively significant; the iron grade of the obtained concentrate products is generally between 55% and 67%, the recovery rate of metallic iron is high, and the products have high economic value.<\/p>\n

Para rejeitos de cobre<\/strong><\/em>Os m\u00e9todos de separa\u00e7\u00e3o secund\u00e1ria incluem agente redutor redu\u00e7\u00e3o torrefa\u00e7\u00e3o-moagem-processo de separa\u00e7\u00e3o magn\u00e9tica, flota\u00e7\u00e3o e lixivia\u00e7\u00e3o<\/strong>. The reduction roasting-grinding-magnetic separation process reduces metals such as copper and iron in the copper tailings into metal elements by reducing agents, grinding them into fine particles, and finally, using magnetic separation for recovery. Flotation can achieve secondary separation of valuable components in copper tailings using different procedures and reagents. The chemical leaching process can realize the recovery and utilization of various valuable metals in copper tailings.<\/p>\n

Os graus de chumbo<\/a>, zinco<\/a>, and other metals in lead-zinc tailings are relatively high and have high recovery values, so their secondary sorting is meaningful. There are many types of secondary beneficiation methods for lead and zinc tailings. In addition to the traditional beneficiation process, there are many new technologies. Such as:<\/p>\n