Optional test of ore in Hubei molybdenum copper ore

I. Introduction: the value of non-ferrous metals market trends 1, nonferrous metals Copper Copper is one of the earliest human discovery and use of ancient metals, copper and its alloys due to the good electrical conductivity and thermal conductivity, high corrosion resistance, easy processing, anti- good tensile strength and fatigue strength have been widely used in metal consumption mATERIAL inferior to steel and aluminum, as well as international and national economy to become high-tech engineering indispensable base material and strategic materials, electrical, mechanical, chemical, infrastructure Industrial sectors such as defense and defense have a wide range of uses.
From the perspective of national distribution, the world's copper resources are mainly concentrated in Chile, the United States, Zambia, the Commonwealth of Independent States and Peru. Chile is the world's richest copper resource. Its copper metal reserves account for about a quarter of the world's total reserves. China's total copper reserves are 62.43 million tons, ranking seventh in the world.
The trend of copper prices in 2005 broke the perception of high copper prices over the past few decades. As the global economy continues to grow and the demand for raw materials expands, the measurement of the value of raw materials such as minerals and energy products exceeds expectations. This has caused people to panic about the most "resources" in the 21st century.
In 2005, the world's copper output was 16.433 million tons, a year-on-year increase of 4.7%, the highest in history. Due to the stimulation and effects of various factors such as demand growth, the world copper metal prices were pushed into the cyclical channel. The three-month copper price of the London Metal Exchange (LME) has been a record high, reaching $4,478/ton at the beginning of December. And continuously hit a record high at a price of 4515 US dollars / ton.
In 2006, the price of copper went through the Spring Festival. It rose three times in late March and early May, and soared by 70% in just half a year. At the end of April, LME copper hit a record high of $7,685.
2. Rare metal molybdenum As an important mineral resource and strategic material, molybdenum plays an important role in national economic development and global trade. The consumption situation of molybdenum is mainly industrial molybdenum trioxide, accounting for about 70%, ferromolybdenum accounts for about 20%, metal molybdenum and chemical products each account for 5%, and its application fields and distribution ratio are as follows: steel smelting consumption accounts for about 80% (Metal steel is about 43%, stainless steel is about 23%, tool steel and high-speed steel is about 8%, cast iron and rolls are about 6%), chemical products account for about 10%, and metal molybdenum products account for about 6%. High-strength alloys and special alloys account for about 3%, and other molybdenum products are about 1%. It can be seen that the development of the steel industry plays a decisive role in the consumption of molybdenum, but with the development of science and technology, the application of molybdenum in high-tech and other fields will continue to expand and develop.
The international market price of molybdenum products is mainly based on the daily quotes of the international market “MB” (British Metal Herald) and “MW” (US Metal Weekly). In terms of domestic market sales, it is also based on the international market quotation, combined with the flexible changes in the domestic supply and demand market.
With the development of the global economy, the prices of molybdenum and molybdenum products in the world have gone through lows in the early years of 2002, and have fluctuated and increased. In recent years, they have repeatedly broken through historical highs. Taking FeMo-60 ferromolybdenum as an example, it was approached at the end of 2003. 100,000 yuan / T, reached 340,000 yuan at the end of 2004, March-May 2005, the highest climb to 410,000 yuan / T, the last three years (2003 - 2006) FeMo - 60 ferromolybdenum quarter price analysis Figure 1. (Photo)

Foreword
In November 2006, Tibet Molybdenum Mine entrusted Xi'an Tianzhou Mining Technology Development Co., Ltd. to conduct a process test on the Tibet Molybdenum Mine, with the aim of providing a basis for the development and utilization of the mine.
Chemical analysis of samples sent from Tibet: molybdenum: 0.156%, copper: 0.44%, lead : 0.013%, zinc 0.019%, silver 14.6 g/ton, gold 0.31 g/ton, test samples from chemical analysis It is a polymetallic sulfide ore. The ore that can be recovered from the mine is molybdenum. The mine for comprehensive recovery is copper. The test sample is molybdenum-copper ore.
At present, most of the copper-molybdenum ore at home and abroad adopts the process of mixed flotation and separation. The Tibet molybdenum mine adopts two kinds of processes, namely, the preferential flotation process of copper-suppressing molybdenum and the comparison process of molybdenum-copper mixed-selective molybdenum-copper separation process. The preferred flotation process uses sodium sulfide plus sodium silicate to suppress copper molybdenum, and then copper sulfate to activate copper. The open circuit index of TZ-108 float copper is: 45.91% of molybdenum concentrate grade and 0.92% of molybdenum concentrate. The recovery rate of molybdenum is 57.25%, the grade of copper concentrate is 35.20%, and the recovery rate of copper is 73.65%. Then molybdenum-copper separation flotation process, the process uses coal oil TZ-108 with copper molybdenum collector, TZ-108 with kerosene as collector, mixing drug, both drugs act as a "synergistic effect", the The original single kerosene dosage of 250 g / ton, down to kerosene 35 g / ton, TZ - 108 15 g / ton, greatly reducing the cost of pharmaceuticals. The separation of molybdenum and copper in the mixed concentrate is also separated by sodium sulfide. The open-circuit test parameters of the mixed flotation and molybdenum-copper separation process are: molybdenum concentrate containing 49.05% molybdenum, containing copper 0.82%, molybdenum recovery rate 56.29%, copper concentrate containing copper 36.14%, copper recovery rate of 72.67%.
The Tibet Molybdenum Mine uses two process comparison tests and has obtained satisfactory test indicators, which provides a basis for mine development and utilization.
Conclusion
(1) Tibet molybdenum ore contains 0.156% molybdenum, 0.44% copper, 0.013% lead, 0.091% zinc, 0.31 g/ton gold, and 14.6 g/ton silver. The analysis shows that the minerals that can be recovered are molybdenum. The recovered mineral is copper, which is a molybdenum copper ore.
(2) This experiment adopts the preferential flotation and mixed flotation process, and the test uses mixed drugs to make the agent play a "synergistic" effect, greatly reducing the dosage of the agent.
(3) Using the preferential flotation process test, the grade of molybdenum concentrate is 45.91%, the recovery rate of molybdenum is 57.25%; the comprehensive recovery of copper, the grade of copper concentrate is 35.20%, the recovery rate of copper is 73.65%; the use of mixed flotation re-molybdenum copper Separation process test, can obtain 49.05% grade of molybdenum concentrate, molybdenum recovery rate of 56.29%; comprehensive recovery of copper, copper concentrate grade 36.14%, copper recovery rate of 72.67%. Both processes were used and satisfactory test indicators were obtained.
(4) Due to the small yield of molybdenum concentrate, it is impossible to do closed circuit test.

We are putting most of our resource and effort into Ratchet Straps and their accessories.