What is the best reagent to break through the technical difficulties of copper smelting slag benefic

Copper smelting slag is also called copper slag, according to the different smelting process, fire smelting slag can be divided into melting slag, blowing slag, refining slag and depleted slag. But no matter what kind of copper slag, the technical problems of copper smelting slag have always been the key areas to overcome in the mineral processing industry, where are the main difficulties?

First of all, copper smelting slag is the melt of various oxides, containing very complex components, these components can form sulfide, nitride, sulfate and other different compounds under different composition and temperature conditions, the internal structure is dense, hard and brittle, technical flotation is more difficult;

Secondly, a considerable amount of minerals in copper slag are iron and silicon, some of which are metallic copper or copper oxide, and some even contain valuable components such as gold, silver and nickel. Different minerals have different flotation properties, and the flotation characteristics of various mineral components need to be fully considered, which causes great obstacles to the technology.

Third, the grade of various mineral components in copper slag is different, such as high grade of blown copper slag, smelting slag and depleted slag grade is very low, different mineral components required beneficiation agents are different, the amount and consumption cost is difficult to estimate, in need of more perfect beneficiation agents to achieve technical breakthroughs.

In most cases, copper smelting slag contains non-ferrous metals, ferrous metals and rare and precious metals, and how to use different beneficiation methods according to the various valuable minerals in the copper smelting slag is very important, specifically:

1. For non-ferrous metals, this kind of copper smelting slag mineral has strong floatability, and can be flotation of copper, lead, zinc and other metals by floating beneficiation method; For copper smelting slag with large mineral content such as gold, silver and copper oxide, gravity separation and chemical beneficiation can be assisted in addition to flotation.

2. From the perspective of production practice, copper smelting slag with copper and iron as the main recovery object can be beneficiated by flotation + magnetic separation according to mineral properties; If there are more dispersed metal minerals and it is difficult to be separated, the combined beneficiation process should be adopted for recovery treatment.

3, no matter what kind of copper slag, we must first test the nature of the ore, including the nature of the purpose of the race and the nature of the McIntosh according to the nature of the ore to determine the type and model of the agent used. According to the nature, we recommend the use of LF-30/LF-35T, LF-AT, LF-11, D2, LF-AQ and other agents, which are special agents developed by the laboratory of China Mineral Processing Pharmaceutical Network Center to overcome this problem. It has strong harvesting ability and good selectivity for minerals, including copper smelting slag, bonded copper ore, silica copper ore, copper iron ore, etc.

For example, the LF-16 copper oxide complex collector is quinone guanidine disproportionated complexation because of its special solitary nitrogen structure and efficient complexation, it has a paste shape and a certain taste; The effective activity reaches 80%~85%, the dosage is 20G-100g /T, and the effect is better when combined with 11, AT, 35T collector (100g-200g). Use water with 3% or 10% concentration, add in stages.