Environment-friendly ilmenite collecting agent and preparation method thereof

Abstract

The invention discloses an environment-friendly ilmenite collecting agent. The environment-friendly ilmenite collecting agent is composed of, by mass, 35% to 65% of colza oil soap, 10% to 30% of rosin soda soap, 3% to 8% of terpenic oil, 1% to 5% of fatty alcohol-polyoxyethylene ether sodium sulfate, 0.5% to 3% of coconut fatty acid diethanol amide and the balance water. In addition, the invention further discloses a preparation method of the collecting agent. Compared with a traditional collecting agent containing arsenium and other toxic substances, the environment-friendly ilmenite collecting agent is safe, environmentally friendly, abundant in raw material source, low in cost, small in use amount, high in selectivity, capable of reducing the use amount of regulators such as sulfuric acid, and beneficial for protecting the environment and further reducing production cost. After the environment-friendly ilmenite collecting agent is unceasingly used by mine enterprises, it is verified that under the condition that the floating raw ore grade is 16.33%, good indexes including the concentrate grade of 48.16% or above, the work recovery rate of 83.23% or above and the tailings grade of 3.24% or below can be achieved.

Description

technical field [0001] The invention belongs to the technical field of ilmenite collection by flotation, and in particular relates to an environment-friendly ilmenite collector and a preparation method thereof. Background technique [0002] The main mineral composition of ilmenite is ferrous metatitanate (FeTiO 3 ), is an important raw material for the preparation of titanium dioxide, high titanium slag and other products. Primary ilmenite, its gangue minerals mainly include magnetite, titanolite, plagioclase, hornblende, pyrite, pyrrhotite and other minerals. [0003] Flotation is to change the hydrophobic and hydrophilic properties of the mineral surface by adding flotation agents, and then obtain the target minerals according to the need. The technological process of ilmenite flotation is to float sulfur first, and then float titanium (flotation ilmenite is referred to as floating titanium). Secondary selection and primary scavenging flotation ilmenite), the flotation ...

AI Technical Summary

Problems solved by technology

Among the selected materials, due to the similar magnetic properties of titanite and ilmenite, they are initially enriched by strong magnetism, and the materials entering the flotation are mainly composed of titanite, ilmenite, magnetite and some sulfide minerals, while titanium The minerals of pyroxene and ilmenite both contain iron and titanium ions, and the active points of the floating titanium collector are iron ions and titanium ions, so that the flotation behavior of ilmenite and titanium pyroxene is similar. This increases the difficulty of ilmenite flotation separation

[0004] Conventionally used floating titanium collectors mainly include MOH, ROB, oxidized paraffin wax soap and emulsified tall oil, etc., but these collectors have high price, narrow pH range, poor stability of flotation index, and collector consumption. Disadvantages such as large amount and unsatisfactory flotation index

Among them, the unsatisfactory collector flotation index is mainly manifested in (1) low concentrate recovery rate, high tailings grade, and low selectivity; (2) lack of sensitivity to sulfuric acid, and the gradual increase in the flotation operation section Small grade range

[0005] In addition, the most important thing is that, according to the literature and other records, the current problems of floating titanium collectors such as MOH are: (1) MOH contains toxic benzyl arsenic acid, which has a serious impact on the operating environment and ecological environment; (2) Flotation needs to be carried out at a lower pH value (pH value is about 3-5), and the consumption of medium-adjusting agent sulfuric acid is relatively large, which is not conducive to the discharge of wastewater to meet the standard

At present, in the flotation and separation process of ilmenite, the commonly used titanium collector is used in strong acid or acidic environment, which has a serious impact on the discharge of wastewater from the flotation plant, and the equipment is also easily corroded.

In particular, some collectors still have serious pollution during production and use, which is not conducive to the discharge of tailings wastewater to meet the standards, which has a negative impact on the economic, ecological and social benefits of the concentrator.

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