Cassiterite flotation collecting agent and application thereof

Abstract

The invention discloses a cassiterite flotation collecting agent and application thereof, and belongs to the technical field of flotation. The cassiterite flotation collecting agent comprises diphenyl oxyphosphate and / or dibenzooxy phosphate and is applied to flotation separation of cassiterite and gangue. Compared with an existing common cassiterite collecting agent, the advantage of serving diphenyl oxyphosphate and dibenzooxy phosphate as the cassiterite flotation agent is obvious; normal-temperature solvable performance is achieved, the agent is poisonless and harmless, low in use amount, high in collecting capacity, high in selectivity and capable of achieving effective separation of cassiterite, quartz and calcite under the condition that pH is neutral.

Description

technical field [0001] The invention relates to a mineral flotation collector, in particular to a collector used for cassiterite flotation separation, and belongs to the technical field of cassiterite mineral flotation. Background technique [0002] Tin is an indispensable and important metal in human production and life, and it is also one of the earliest metals discovered and used in human history. Because of its low melting point, corrosion resistance and easy to change the properties of other metals, it is widely used in various fields of the national economy. It is widely used; at present, the demand for tin in various countries in the world continues to grow, and the consumption level of tin has become one of the indicators to measure a country's industrial development level. Cassiterite contains 78.6% tin, which is the most common tin mineral and the main ore mineral of tin. my country is rich in tin ore resources and widely distributed. Mainly primary deposits, wit...

AI Technical Summary

Problems solved by technology

Fatty acid collectors are cheap, non-toxic, and have strong collection capacity, but have poor selectivity to associated gangue minerals quartz and calcite; arsine acid has strong selectivity, but it pollutes the environment seriously and endangers human health; alkyl sulfate The ability to collect cassiterite minerals is strong, but this type of collector has a strong effect on Ca 2+ , Fe 2+ Sensitive, and only effective under acidic conditions, it is difficult to realize industrial application; alkyl sulfonated succinamic acid salt has strong collection ability, less dosage, low price, non-toxic and harmless, short reaction time with minerals, and The flotation effect of cassiterite is better, but it also has the disadvantage of poor selectivity to quartz and calcite; it is worth pointing out that short-chain alkyl phosphite and short-chain alkyl phosphoric acid are isomers. Both can be used for cassiterite flotation and collection, but both have weak collection capacity for cassiterite, and need to add a large amount of activator (heavy metal ions) to use together, which not only increases the industrial cost but also causes environmental damage

Although by increasing the carbon chains of short-chain alkyl phosphite and short-chain alkyl phosphoric acid, the collection capacity of the collector can be enhanced to a certain extent, but its solubility and selectivity will be greatly reduced, and the alkyl phosphite Phosphate ester and alkyl phosphoric acid both have the problem of being extremely sensitive to iron and copper ions in the pulp, which leads to the failure of their ability to collect cassiterite and selectivity.

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