Xinhai Mining

Gold desorption electrolysis and smelting is the final core link of gold product preparation in the all-slime cyanidation process, which directly determines the purity of finished gold products and the final economic benefit of the mining project. The Tanzania 1200t/d gold mineral processing plant adopts advanced and efficient desorption electrolysis integrated technology and professional gold slime smelting process, realizing efficient separation and high-purity smelting of gold elements, and stably outputting high-value gold finished products for the project. In the previous separation process of the project, after the cyanidation leaching of ore pulp, the gold elements are fully adsorbed by activated carbon to form gold-bearing carbon. The gold-loaded carbon contains high-purity gold elements, which is the core carrier for gold extraction. Compared with the traditional low-temperature and low-pressure desorption process, the project adopts a high-temperature and high-pressure desorp...

Overseas mining projects are faced with many uncertain factors such as complex construction conditions, insufficient local supporting resources and imperfect technical personnel system, which easily lead to delayed construction period, unqualified project quality and unstable later operation. The Tanzania 1200t/d gold mineral processing plant adopts Xinhai Mining’s one-stop EPC+M+O full-service mode, covering project design, equipment procurement, construction and installation, commissioning and production operation management, and successfully overcomes various construction difficulties to deliver a high-quality stable-operating processing plant. In the pre-construction stage of the project, Xinhai Mining carried out comprehensive and detailed overall planning work. The professional project team completed geological condition investigation, ore property analysis, process scheme demonstration, construction technical scheme formulation and project management system establishment in adva...

 Most gold ore resources in Tanzania are mixed ore deposits composed of sulfide gold ore and oxide gold ore. The difference in mineral composition, structural characteristics and leaching performance between the two types of ore is the core difficulty restricting the improvement of local gold processing recovery rate. The 1200t/d gold mineral processing plant project is a typical mixed sulfide-oxide gold ore development project. Xinhai Mining accurately grasped the processing differences between the two ores and formulated targeted segmented processing schemes, finally achieving excellent beneficiation results. In this project, the sulfide gold ore has a grade of 10.7g/t, which is the main high-grade ore source of the project. Sulfide gold ore has a dense and hard mineral structure, gold minerals are closely symbiotic with sulfide gangue minerals, and the ore has strong chemical stability. In the leaching process, sulfide ore requires sufficient cyanide reagent dosage, longer leach...

 Green and environmentally friendly tailings treatment is an indispensable part of modern mining project construction, and it is also a key assessment index for the sustainable operation of overseas mining projects. The Tanzania 1200t/d gold mineral processing plant takes environmental protection production as an important construction goal. After the completion of gold separation and extraction, the project adopts professional tailings thickening and dewatering treatment technology to realize standardized stacking of tailings, effectively solving the environmental pollution problems caused by mine tailings discharge and meeting the local environmental protection emission standards in Tanzania. In the whole gold processing flow of the project, after the cyanidation leaching, carbon adsorption and desorption electrolysis processes are completed, the remaining tailings pulp contains a large amount of water and fine-grained gangue particles. If the tailings pulp is directly discharged...

 Crushing and grinding are the primary pre-processing links of gold mineral processing, and the rationality of the process design directly determines the dissociation degree of gold minerals, affects the efficiency of subsequent leaching and separation operations, and ultimately restricts the overall recovery rate of the entire processing plant. Aiming at the ore characteristics and 1200t/d production scale of the Tanzania gold project, Xinhai Mining designed a scientific and efficient combined crushing and grinding process, which perfectly matches the production demand of mixed sulfide and oxide gold ore, laying a solid foundation for high-efficiency gold extraction. In the crushing stage, the project adopts a one-stage open-circuit crushing process. Considering the moderate hardness of local gold ore and the actual construction conditions of African mining sites, the open-circuit crushing process is selected to replace the complex closed-circuit crushing system. This process has ...

 Tanzania is a pivotal gold-producing country in East Africa, hosting abundant complex gold ore resources that feature mixed sulfide and oxide ore types, which poses great challenges to traditional gold extraction technologies. Local mining projects often struggle with low gold recovery rates and unstable production efficiency due to unreasonable process selection. To solve these industry pain points, the 1200t/d gold mineral processing plant project in Tanzania adopted the mature and efficient all-slime cyanidation gold extraction process independently optimized by Xinhai Mining, achieving remarkable beneficiation indicators and stable production benefits. This project’s raw ore has two typical ore types: sulfide gold ore with a grade of 10.7g/t and oxide gold ore with a grade of 2.4g/t, and gold is the only valuable element that can be recovered. The two ores have distinct physical and chemical properties. Sulfide gold ore has a compact structure and tight symbiosis between gold ...