Flotation inhibitor for separating fine stibnite from pyrite and application of flotation inhibitor

A technology of stibnite and pyrite, which is applied in the field of flotation inhibitors, can solve the problem of unsatisfactory separation of fine-grained stibnite and pyrite, difficulty in effectively separating stibnite and pyrite, and stibnite Limited grade improvement and other issues, to achieve the effects of high cost, enhanced selective suppression, and large environmental pollution
CN112237996AActive Publication Date: 2021-01-19CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2021-01-19

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Abstract

The invention discloses a flotation inhibitor for separating fine stibnite from pyrite and application of the flotation inhibitor, and the flotation inhibitor is composed of sodium carboxymethyl cellulose, polyaspartic acid, sodium silicate and sodium sulfite in a mass ratio of (1.2-2.4): (0.4-0.6): (1-2): (1-2). The flotation inhibitor can be applied to separation flotation of fine-grained stibnite and pyrite, has an obvious inhibition effect on pyrite, has a weak stibnite inhibition effect, can achieve a good separation effect, can treat fine-grained stibnite with the raw ore stibium grade of 30-35%, and can obtain stibium concentrate with the stibium recovery rate of more than 85% and the stibium grade of more than 45%. In a conventional stibnite pyrite separation flotation inhibitor, cyanide with the good effect has toxicity, the cost is high, environmental pollution is large, and the inhibitor C is environmentally friendly and low in price. The inhibitor disclosed by the inventionis a combination of conventional industrial medicaments, is simple to prepare and is easy for industrial implementation.
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Description

technical field

[0001] The invention belongs to the technical field of mineral processing, and in particular relates to a flotation inhibitor for separating fine-grained stibnite and pyrite and application thereof. Background technique

[0002] Antimony ore resources have become poorer, finer, and more complex, and the mining and utilization of antimony-containing complex polymetallic sulfide ores has become one of the main sources of antimony. Most of the antimony deposits are dominated by stibnite, followed by bisulphate minerals such as stipyrite and brittle stibnite. The crystallization structure of stibnite is chain, and the chain type of common cleavage plane rupture is usually weak molecular bond, so the floatability of stibnite is better, among which, under weak acidic conditions, stibnite has the best floatability Well, activation is required for flotation under neutral alkaline pulp conditions. Commonly used activators for stibnite include heavy metal salts such ...

Claims

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