Composite collector for low-and-medium-temperature phosphate flotation and preparation method thereof

Abstract

Disclosed are a composite collector for low-and-medium-temperature phosphate flotation and a preparation method thereof. The composite collector is composed of 100 parts of carboxylic acid collector, 50-100 parts of hydrocarbon type oil, 1-10 parts of non-ionic surface active agent, 1-10 parts of anionic surface active agent and 80-200 parts of water, wherein the carboxylic acid collector serves as the main collector, the hydrocarbon type oil serves as the auxiliary collector, the non-ionic surface active agent serves as the synergist, and the anionic surface active agent serves as the emulsifier. The preparation method includes steps of uniformly mixing and stirring the components according to the proportion in the speed of 300-1500rad / min at the temperature ranging from 40DEG C to 80 DEG C to obtain the composite collector for low-and-medium temperature phosphate flotation. When in use of the composite collector, the composite collector is added into a pulp mixing barrel to be mixed with pulp sufficiently according to dosage directly, so that floatation can be carried out in a floatation trough at the normal temperature and the operation of heating to pulp is omitted. The composite collector has the advantages that better low-and-medium-temperature flotation effect can be achieved, bubbles generated by the composite collector are favorable for concentrate deposition, the chemical agent usage is small, raw materials for the composite collector are wide in sources, and the composite collector is moderate in price.

Description

Technical field [0001] The present invention involves a mineral selection agent and its preparation method, especially the medium -low temperature phosphate combination collection collection and its preparation method. The medium -medium low -temperature phosphorus mines combined with a lotion is emulsion, which is easy to prepare and process.The low -temperature flotation performance is stable, the raw materials are wide, the price is low, and it is easy to promote. Background technique [0002] my country's phosphorus ore resources are abundant, phosphorus data reserves are second in the world. The characteristics of phosphate resources in my country are: (1) rich resources, but the distribution is too concentrated. The total reserves are more than 80 % or more. Hubei and Hunan in the south.(2) There are more and low -quality phosphate ore and less rich ore.The average quality of phosphate ore in the country is only 16.95%.(3) Difficult minerals and less ore selection.85%of the...

AI Technical Summary

Problems solved by technology

(3) There are many difficult ores and few easy ores

Reagents belong to organic insoluble substances, and the dissolving effect in the pulp is not good. They are in the form of micelles in the pulp at low temperature (<15°C), and there are few free forms. The dosage of the reagents is large, and the flotation effect is poor.

In addition, the consumption of soda ash is large, the foam viscosity is high, it is not easy to defoam, the concentrate is difficult to settle, and the flotation takes a long time