Arsenic treatment manufacturers: the advantages of arsenic-containing fume treatment methods explained

　　Arsenic treatment manufacturer: arsenic-containing soot treatment method uses a large amount of heat generated by antimony oxidation to maintain the necessary temperature of the reactor and the temperature of the antimony liquid in the furnace; because the concentration of metallic antimony on the surface of the melt is dominant, the nature of metallic antimony is more active than lead and bismuth, so that the antimony in the alloy liquid oxidizes into antimony trioxide and volatilizes into the soot, while lead and bismuth remain in the bottom lead of the reactor, realizing two uses in one furnace.

　　Arsenic treatment manufacturer: adjust the pH of the post-oxidation liquid to 1.5~3, add one or two of CaO and Ca(OH)2 as arsenic precipitant by continuous dosing, with Ca/As molar ratio of 2~8:1, settling time of 5~100 hours, and reaction temperature of 10℃~90℃. In the arsenic removal process, iron salt solution is added and neutralizer is added to regulate the reaction at pH 1.5 to 3 so that Fe3+ reacts with AsO43- to produce highly stable arsenic-solid minerals, with Fe/As molar ratio controlled at 1 to 5:1. said iron salt solution is at least one of iron sulfate solution, iron chloride solution or iron nitrate solution, and said neutralizer is sodium carbonate, sodium bicarbonate or sodium hydroxide solution of at least one of.

　　Arsenic treatment manufacturers: the advantages and positive effects of arsenic-containing fume treatment method method.

　　1, arsenic-containing soot treatment method uses atmospheric pressure alkaline leaching to remove all soluble arsenic from arsenic soot, and the arsenic content of the raw material after arsenic removal is low, which allows comprehensive recovery of valuable metals such as antimony and lead and reduces the content of arsenic in the product;

　　2, arsenic treatment manufacturers: arsenic-containing soot treatment method used by the atmospheric pressure alkaline leaching, low economic cost, operability, simple and easy process flow, so that most of the arsenic into the leaching solution, while antimony, lead, bismuth and other valuable metals enriched in the leaching residue, so as to achieve the resourcefulness and harmlessness of arsenic-containing soot, especially the soot generated by the lead-zinc smelting process, the advantages of this method more obvious;

　　3, the arsenic-containing soot treatment method on the basis of the original technology to change the charging method, control the pH of the synthesis process, the use of lime arsenic precipitation method and precipitation conversion method synthesis of solid arsenic minerals in a wide pH range of 2 ~ 11 as well as strong reducing conditions, stable accumulation, so that As no longer migrate, but also the smelting system As a more ideal open circuit, is a simple process, resource-saving, environmentally friendly method, and precipitation transformation method to prepare the solid arsenic mineral stability, stability region wide, convenient stacking, and the process cost is low, easy to operate.

　　4, arsenic treatment manufacturers: arsenic-containing fume treatment method using fluidized washing to further reduce the content of arsenic in the leaching residue, which can improve the quality of recovered products;

　　5, arsenic treatment manufacturers: arsenic-containing fume treatment method using reduction melting to recover valuable metals, to achieve a comprehensive metal recovery and utilization of large.

　　In short, arsenic-containing soot treatment method reasonable process collocation, through strict control of the conditions of each process parameters, so that arsenic can be safely disposed of, antimony, lead, bismuth and other valuable metals to be recovered and effectively used, to achieve the purpose of environmental protection, economic, energy saving, high resource utilization, to achieve arsenic harmless and resource utilization of the greater. Since the separation of arsenic and other elements by wet process avoids the large-scale pollution brought by fire process and the problem of low resource utilization, the whole process basically has no three waste emissions, all resources are used with great efficiency, and the products obtained are convenient for subsequent treatment and processing, so the arsenic-containing soot treatment method has the advantages of environmental protection, economy, energy saving and high resource utilization.