Foam sorting activator and application thereof

Abstract

The invention discloses a foam separation activating agent, which comprises the following components in parts by weight: 0-10 parts of a soluble copper salt, 5-200 parts of an ammonium / amine salt and1-100 parts of a reducing active agent, wherein the soluble copper salt is selected from at least one of copper sulfate, copper nitrate, copper chloride or copper carbonate, the ammonium / amine salt isselected from at least one of ammonia water, ammonium carbonate, ammonium sulfate, ammonium chloride, diamine hydrogen phosphate, ammonium humate or ethylenediamine phosphate, and the reducing activeagent is selected from at least one of ascorbic acid, hydrazine hydrate, hydroxylamine hydrochloride or hydroxylamine sulfate. The foam separation activating agent is high in activating efficiency, stable and firm in activating effect, good in hydrophobicity of activated materials and high in flotation rate, can effectively improve the foam sorting capacity of the to-be-activated materials, and achieves the efficient foam separation and recycling of target components in the materials.

Description

technical field [0001] The invention belongs to the technical field of foam separation, in particular to a foam separation activator, and in particular to the application of the foam separation activator. Background technique [0002] Contains Cu 2+ Soluble copper salts are often used as activation regulators in the froth separation process of metal components, such as copper sulfate as flotation of polymetallic sulfide ore or oxide ores. Studies have shown that Cu 2+ The activation of material foam separation is based on its reaction with the material to be treated to form a hydrophobic film, thereby promoting the interaction between the material and the collector, such as the formation of CuS, Cu(OH) 2 , Cu film. Cu 2+ Activated foam sorting, the main performance is as follows: [0003] 1) Inhibitory film on dissolved mineral surface [0004] For example, in mixed sulfide ores, sulfur needs to be recovered, because the ferric hydroxide film on the surface of pyrite h...

AI Technical Summary

Problems solved by technology

CN102688809A discloses an ammonium-amine coupling activation method based on a copper mineral sulfidation flotation system, which is a method of coupling an inorganic ammonium salt and an organic amine salt with a vulcanizing agent to strengthen copper ore sulfide flotation, which utilizes ammonium-amine salt and mineral The copper ions on the surface form complexes of various structures, and then the surface of the copper oxide mineral is vulcanized by a vulcanizing agent to form a "new type of copper sulfide" that is firmly adsorbed on the surface of the copper mineral, causing changes in the microstructure of the copper mineral surface. It may have a more significant effect on the flotation of copper minerals, because it uses ammonium / amine salts to react with a large number of copper active sites on the mineral surface to release Cu-rich 2+ Surface activation flotation, but the ability to activate flotation of sulfide minerals that do not contain copper active sites in the mineral itself is very limited

The flotation activator combined with ammonium salt and copper sulfate can properly improve the activation ability of copper sulfate to mineral flotation, but its activation ability to some easily oxidized sulfide minerals is also weak, such as nickel sulfide minerals are easily exposed to air. Oxidation to form Ni(OH) 2 , the activation ability of ammonium salt and copper sulfate is relatively weak, resulting in low flotation efficiency of nickel minerals

In order to reduce the impact of mineral oxidation, CN102423728A discloses a flotation method of copper-containing nickel sulfide ore, and proposes that in the grinding operation of copper-nickel sulfide ore, sulfite is added as an antioxidant for nickel-containing minerals in the flotation process to slow down Nickel sulfide is oxidized and activated pentlandite to accelerate the flotation of nickel minerals. Although the recovery rate of nickel can be increased by 4-6% through regulation, it ignores the effect of sulfite on the flotation of copper and nickel when a large amount of sulfite is used. selected suppression, and a large amount of Cu 2+ Also activates gangue minerals after complexation to form sulfites