Mineral Processing Service

The theoretical basis of various gold flotation processes is roughly the same, that is, gold ore particles can aggregate at the liquid-gas or water-oil interface due to the hydrophobic properties of their own surfaces or the hydrophobic properties obtained by flotation reagents. The most widely used method is froth flotation . The ore is crushed and pulverized to dissociate various minerals into individual particles, and make the particle size meet the requirements of the flotation process. Various flotation agents are added to the milled pulp and mixed and mixed to interact with the mineral particles to expand the floatability difference between different mineral particles. The adjusted gold ore pulp is sent to the flotation cell, stirred and aerated. The ore particles in the slurry contact and collide with the air bubbles, and the ore particles with good floatability selectively adhere to the air bubbles and are carried up to form a mineralized foam layer composed of gas-liquid-soli

  Market research firm Fitch Solutions Country Risk and Industry Research (Fitch Solutions) said in its July 8 " Global Nickel Outlook " report: The Russia-Ukraine conflict has created uncertainty about   the global supply of mined nickel   - especially High-grade nickel used as battery-grade nickel in the electric vehicle (EV) industry. Last year, Russian miner Norilsk Nickel alone provided about 17% of  the world's primary nickel supply . Overall, Russia accounts for about 21% of global primary nickel production, followed by Canada with 17%, Australia with 14% and China with 10%. While nickel is the fifth most common element on Earth and is currently mined in more than 25 countries, high-grade sulfide deposits located in mature mining areas are mostly depleted and require new and riskier jurisdictions Do additional exploration. However, apart from the uncertainty surrounding Russia, high refined nickel prices and less disruption from the Covid-19 outbreak could lead to

  Copper oxide is a black oxide of copper. In nature, copper is a typical sulphurophile element, mainly in the form of copper sulfide, but copper oxide minerals will be formed under strong oxidizing conditions. Copper oxide is insoluble in water and/alcohol, soluble in acid, ammonium chloride and potassium cyanide solution, slow to dissolve in ammonia solution, can react with strong alkali, copper oxide is widely used in dry manufacture of ceramics, enamel, glaze, desulfurizer etc., can also be used to make oxygen, catalysts and green glass. In the beneficiation process, most copper oxides need to be sulfided by chemicals, and then beneficiate. Compared with dry copper sulfide, the selection is more complicated and more chemicals are used. The beneficiation process of copper oxide (including oxygen-sulfur mixed copper ore) can be divided into two categories: flotation method and chemical beneficiation method. Below we mainly describe these two types of beneficiation processes. Copper o

The main bearing of the   ball mill  is one of the important components of the ball mill, which has an important influence on the  operation efficiency of the ball mill. Under the  high temperature in summer , the main bearing of the ball mill is prone to high temperature of the bearing pad, and even a bearing accident in severe cases. In this article, we will discuss how to solve the problem of the high temperature of the bearing pad of the main bearing of the ball mill. 1. Replace the ball mill lubricating oil in time During the  operation of the ball mil l , heat is generated due to the relative rotational friction between the hollow shaft and the bearing bush, which increases the temperature of the main bearing. Therefore, the friction can be reduced by replacing the lubricating oil, so that a uniform oil film can be formed on the bearing surface. Avoid increasing the temperature of the main bearing. 2. Adjust the cooling water and cooling device of the ball mill The cooling of the