For example, malachite-bearing copper ore can be leached with dilute sulfuric acid. During leaching, malachite is converted into a copper sulfate solution. Copper metal can then be recovered from the solution by cementation, in which iron filings replace copper ions to produce metallic copper, commonly known as sponge copper.<\/p>\n
Chemical beneficiation is particularly effective for processing low-grade, fine-grained, complex, and refractory mineral resources that are difficult to treat using conventional physical beneficiation methods. It can improve resource utilization, recover valuable components from previously uneconomic materials, and contribute to the treatment and utilization of waste streams such as wastewater and waste residues.<\/p>\n
A typical chemical beneficiation process consists of six major operations:<\/strong><\/p>\n The specific process configuration depends on the mineral composition, the properties of the valuable components, and the required product quality.<\/p>\n <\/p>\n El beneficio qu\u00edmico tiene diferentes operaciones seg\u00fan los distintos procesos tecnol\u00f3gicos. Un proceso t\u00edpico de beneficio qu\u00edmico suele incluir las seis operaciones primarias siguientes.<\/p>\n <\/p>\n <\/p>\n Esta operaci\u00f3n es la misma que el m\u00e9todo de beneficio f\u00edsico, incluyendo trituraci\u00f3n y cribado de materiales, molienda y clasificaci\u00f3n, mezcla de ingredientes y otros procesos de transformaci\u00f3n mec\u00e1nica.<\/strong> The purpose is to grind the material to a specific particle size, prepare suitable fineness and concentration for the next operation, and sometimes use physical beneficiation to remove some harmful impurities or enrich the target minerals in advance so that the mineral raw materials and chemical reagents are mixed well. If the fire method is used, sometimes the material must be dried or sintered to create favorable conditions for the next operation.<\/p>\n The purpose of roasting is to change the chemical composition of the ore or remove harmful impurities so that we can transform the target mineral (component) into a form that is easy to leach or beneficial to physical beneficiation and prepare conditions for the next operation. The roasted products include calcined sand, dry dust, wet dust collection liquid, and mud, from which corresponding methods can recover functional components according to their composition and properties.<\/p>\n Esta operaci\u00f3n consiste en disolver selectivamente los componentes funcionales o los componentes de impurezas en el disolvente de lixiviaci\u00f3n seg\u00fan las propiedades de las materias primas y los requisitos del proceso, de modo que los componentes valiosos se separen de los componentes de impurezas, o se separen los componentes funcionales, que es el paso siguiente. Crear las condiciones para recuperar los componentes \u00fatiles de la soluci\u00f3n de lixiviaci\u00f3n o del residuo de lixiviaci\u00f3n.<\/p>\n This is the same as the dehydration operation of physical beneficiation products, but the solid-liquid separation of chemical beneficiation leached pulp is more complicated. Generally, sedimentation, filtration, and classification are used to process leached ore pulp to obtain a clarified solution or contain a small number of fine mineral particles.<\/p>\n To obtain high-grade chemical concentrates, the leaching solution is often purified and separated by chemical precipitation, ion exchange, or solvent extraction to remove impurities and obtain a purified solution with a high content of valuable components.<\/p>\n Chemical concentrates are obtained by extracting valuable metals (components) from the leaching solution. Generally, chemical precipitation, metal replacement, electrowinning, carbon adsorption, ion exchange, or solvent extraction can be used; in some cases, physical beneficiation can also be used. The principal process of typical chemical beneficiation is as follows.<\/p>\n <\/p>\n <\/p>\n Ha utilizado con \u00e9xito el beneficio qu\u00edmico para procesar muchos minerales met\u00e1licos y materias primas minerales no met\u00e1licas como hierro<\/a>, manganeso<\/a>...plomo, cobre<\/a>zinc, tungsteno<\/a>aluminio, esta\u00f1o, oro<\/a>, plata<\/a>t\u00e1ntalo, niobio, cobalto, n\u00edquel<\/a>La extracci\u00f3n de materias primas minerales s\u00f3lidas como el uranio, el torio, las tierras raras, el aluminio, el f\u00f3sforo, el grafito, el diamante, el caol\u00edn y otras materias primas minerales s\u00f3lidas. Tambi\u00e9n puede extraer componentes valiosos del agua de minas, aguas residuales y agua de mar.<\/p>\n The processing object of characteristic chemical beneficiation is the same as that of physical beneficiation. Still, the adaptability of the chemical beneficiation method is stronger than that of the physical beneficiation method, and its separation principle and product form are different from physical beneficiation. The separation principle of chemical beneficiation is similar to the traditional metallurgical process. Chemical beneficiation and the metallurgical process both use the basic principles of inorganic chemistry, organic chemistry, physical chemistry, and chemical processes to solve their respective process problems. Mineral dressing is widely used in developing various refractory ferrous metals, non-ferrous metals, precious metals, and non-metallic mineral resources.<\/p>\n La aplicaci\u00f3n del beneficio qu\u00edmico es un m\u00e9todo eficaz para tratar las materias primas minerales pobres, finas, miscel\u00e1neas y otras materias primas minerales refractarias y reciclar los recursos minerales no utilizados. Su eficacia de separaci\u00f3n es superior a la del beneficio f\u00edsico. Sin embargo, el proceso de beneficio qu\u00edmico consume muchos productos qu\u00edmicos, y los requisitos de materiales de equipamiento y separaci\u00f3n s\u00f3lido-l\u00edquido son mayores que los del beneficio f\u00edsico. Por lo tanto, en condiciones normales, debe utilizar los m\u00e9todos de beneficio f\u00edsico existentes para procesar las materias primas minerales en la medida de lo posible.<\/p>\n \u00bfCu\u00e1ndo considerar el uso de un proceso de beneficio qu\u00edmico?<\/strong><\/p>\n <\/p>\n Chemical beneficiation should generally be considered under the following conditions:\n
Proceso de beneficio qu\u00edmico<\/h2>\n
![\"\"](\"https:\/\/www.jxscmachine.com\/wp-content\/uploads\/2023\/02\/Chemical-Beneficiation-Process.jpg\")
<\/a><\/h2>\n1. Preparatory Work<\/h3>\n
2. Roasting Operation<\/h3>\n
3. Leaching Operation<\/h3>\n
4. Solid-liquid Separation Operation<\/h3>\n
5. Purification Work<\/h3>\n
6. Production of Chemical Concentrates<\/h3>\n
<\/a><\/p>\n\n
When Should Chemical Beneficiation Be Considered?<\/h2>\n
\n1. Physical Beneficiation Alone Is Ineffective<\/strong>
\nWhen valuable minerals are extremely fine-grained, closely associated with gangue, disseminated, or chemically similar to the surrounding minerals, conventional physical beneficiation may not achieve satisfactory separation.
\n2. Physical Beneficiation Cannot Achieve Reasonable Technical and Economic Indicators
\n<\/strong>If physical beneficiation cannot provide acceptable recovery, concentrate grade, or economic performance, chemical treatment may provide an alternative or supplementary solution.
\n3. Valuable Components Occur in Complex or Refractory Forms<\/strong>
\nChemical beneficiation is particularly suitable when valuable components occur in forms that are difficult to recover through conventional gravity, magnetic, flotation, or other physical methods.<\/p>\n