Shaanxi United Chemical: Providing Green Sodium Cyanide Solutions for Kazakhstan

In the field of chemical product supply, Shaanxi United Chemical has always been at the forefront of the industry with a professional and responsible image. Now, we are very honored to be able to provide high - quality Sodium Cyanide products for Kazakhstan.

Sodium cyanide, as an important chemical raw material, is widely used in many industrial fields, especially in the gold mining and beneficiation industry. However, due to its special properties, it is strictly regulated by the Chinese government. We are also deeply aware of the potential harm of sodium cyanide to the environment. If the cyanide - containing wastewater generated in the gold mining and beneficiation process is not properly treated, it will become a serious environmental hazard. The cyanide in the wastewater of gold cyanidation plants is determined by the composition of the ore and the operating conditions. In addition to cyanide, it also contains chemical substances such as thiocyanate. Most of these thiocyanates come from the aeration process in production or the reaction between cyanide and unstable sulfur atoms during leaching. Moreover, the cyanide - containing wastewater contains a large amount of highly toxic metal cyanide complexes and cyanides. Therefore, Shaanxi United Chemical is not only a product supplier but also a practitioner of Environmental Protection.

Environmental Protection Advantages

In terms of environmental protection, we have significant advantages. The company invests a large amount of resources in technology research and development, and provides comprehensive technical support for potential environmental problems that may arise during the production, transportation, storage and use of Sodium cyanide. Our professional team can assist local enterprises in Kazakhstan to establish a complete environmental management system and reduce pollutant generation from the source. For example, in the production process, we adopt advanced green synthesis technologies to improve raw material utilization and reduce waste emissions.

Treatment Methods for Cyanide - containing Wastewater

In the treatment of cyanide - containing wastewater in the gold mining and beneficiation industry, we master a variety of mature and effective methods:

• Alkaline Chlorination Method: This is a common method for destroying Cyanides in the wastewater of gold cyanidation plants and is widely used in the wastewater treatment of cyanide electroplating plants, gold mine cyanidation plants, gold cyanidation plants and other units. Its principle is to use liquid chlorine, chlorine gas or bleaching powder to oxidize the cyanide in the wastewater into non - toxic substances such as carbon dioxide and nitrogen.

• Sulfur Dioxide - Air Oxidation Method: Also known as the InCo method, it was developed by the American InCo Metals Company in the early 1980s. This method uses sulfur dioxide and air as oxidants to oxidize the cyanides in the wastewater under the condition of a copper - ion catalyst, generating bicarbonate and ammonium ferrous sulfate. It can not only remove free cyanide ions, molecular hydrogen and complex cyanides, but also eliminate the ferrocyanide complexes that are difficult to remove by the chlorination method, making the treated wastewater meet the discharge standards.

• Hydrogen Peroxide Oxidation Method: It is suitable for treating low - concentration cyanide - containing wastewater. Under the action of a copper - ion catalyst at a alkaline pH value of 10 - 11. hydrogen peroxide oxidizes the cyanides to generate chemical substances such as oxides and ammonium ferrous sulfate. Among them, heavy metal ions form hydroxide precipitates, and ferrocyanide ions and other heavy metal ions form ferrocyanide complex salts.

• Ozone Oxidation Method: It is suitable for treating relatively dilute cyanide - containing waste liquid. At a alkaline pH value of 11 - 12. ozone oxidizes the cyanides to generate bicarbonate and nitrogen. Although this method cannot remove ferrocyanide complexes, it has the advantages of simplicity and convenience. There is no need to purchase and transport chemicals, and only an ozone generator is needed to treat the cyanide - containing wastewater. However, it also has the disadvantages of high power consumption and high treatment costs. To solve the problem of ferrocyanide complexes, the Tinker Air Force Base in the United States developed a combined process of ultraviolet photolysis and ozone method and successfully tested it. Later, a similar O3/photolysis method was also developed.

Transportation and Storage Assurance

In the transportation link, we are equipped with professional hazardous chemicals transportation equipment and strict transportation management processes to ensure that sodium cyanide arrives at the destination safely while minimizing the impact on the environment along the way. In terms of storage, we provide scientific storage solutions and facilities to prevent accidents such as leakage from polluting the soil and water sources. In case of unexpected situations, we also have professional emergency treatment technologies and teams that can respond quickly and minimize environmental damage.

Shaanxi United Chemical is committed to working hand in hand with partners in Kazakhstan to achieve green and sustainable development while providing high - quality sodium cyanide products. We believe that through our efforts, we can contribute to the industrial development of Kazakhstan and also add a guarantee for local environmental protection.