China Shanxi 1200t/d iron ore beneficiation project is a full mining industry chain service (EPC+ M+O) project.
The deposit is characterized by stable standard minerals with repeated mineralization stages. The sulfur content is very low and it is a low sulfide ore. The metal minerals in the ore are: silver-gold ore, gold ore, sphalerite, and galena. , Hematite, etc. Gangue minerals are: quartz, sericite, feldspar, calcite, chlorite, zircon, apatite, etc. The main disadvantage of the deposit is that there is a faulted mud layer, and the distribution of the faulted mud layer is mainly distributed along the main fracture surface, with a thickness of 5-20cm, and the rock is composed of gray-black and gray-white mud.
The raw ore of this gold mine project undertaken by Xinhai Mining is the processed gold tailings, Au grade is 4.7g/t, the particle size is relatively fine, and no crushing is required, so the beneficiation process designed for it is: pre-screening-first stage Closed-circuit grinding and classification - concentration - cyanide leaching - desorption electrolysis - smelting - tailings pressure filter dehydration process flow.
Tanzania 150t/d gold beneficiation project, its mining area is mainly gold-bearing quartz vein gold ore body. In order to obtain high-grade gold, Xinhai signed a mining industry chain service with Xinhai. During the implementation of the project, Xinhai Mining took comprehensive planning, rational layout, environmental protection and safe production as important principles, strictly controlled the construction period, and provided customers with high-quality services.
The Indonesian gold mine leaching plant is a project undertaken by Xinhai Mining. Gold is the only recoverable element in the ore of this project, with a grade of 2.6g/t. In the early stage, the project client expressed great interest after contacting Xinhai and learning about Xinhai's service model. Afterwards, the client of this project came to visit Xinhai Mining, further understood the technical strength of Xinhai Mining, and strengthened the customer's intention to choose Xinhai Mining. After multiple comparisons and considerations, the two parties successfully reached a cooperation.
In the original gravity separation plant, because the gold embedded in the ore itself has a very fine particle size (single gold ≤ 30%, and the particle size of most gold is less than 13 μm), it is difficult to recover by a single gravity separation process, and the economic benefit is poor. In order to find an efficient and reasonable process, the mining company of this project finally commissioned Xinhai Mining to build and renovate it.
As the exploration got deeper, the original 300tpd silver cyanide plant was no longer able to meet the process needs. Due to the shortage of equipment maintenance and the inappropriate process, the plant capacity fell short of expectations and silver recovery dropped year by year. So the client decided to upgrade the plant. The raw ore consisted of metallic minerals (native silver, pyrite and limonite) and gangue minerals (quartz, feldspar and clay), with silver being the valuable mineral.
The Tanzania 1,200t/d gold mineral processing plant was an EPC+M+O project. The ore consisted of sulfide (10.7g/t) and oxide (2.4g/t), with Au being the only valuable element. They achieved a leaching rate of 93.75% and 91.58% respectively through the all-slime cyanidation gold extraction process.
The Zimbabwe 700t/d gold mineral processing plant was an EPC+M+O project. The raw ore had a gold grade of up to 6g/t. Xinhai worked to ensure environmental protection and workplace safety, optimize plant layout, and shorten construction duration.
© 2021 Yantai KZ Mining Processing Technology & Equipment Inc.