阅读说明：本技术 一种新型环保的选矿用捕收剂 (Novel environment-friendly collecting agent for mineral separation ) 是由 左康苗 于 2019-09-09 设计创作，主要内容包括：本发明公开了一种新型环保的选矿用捕收剂,由以下重量份数的原料组成：脂肪酸钠皂40～55份,油酸钠5～9份,月桂酸钠皂15～25份,松醇油4～6份,十二烷基磺基甜菜碱2～4份,聚丙烯酰胺26～28份,余量为水。采用本发明一种新型环保的选矿用捕收剂是以脂肪酸钠皂、油酸钠、月桂酸钠皂为主,具有用量少、环保的优点,配以两种表面活性剂十二烷基磺基甜菜碱、聚丙烯酰胺组成,基于捕收剂与表面活性剂共吸附的机理,经过大量的捕收剂筛选试验,以及实际矿石的试验,试验结果表明脂肪酸钠皂、油酸钠、月桂酸钠皂,配以十二烷基磺基甜菜碱、聚丙烯酰胺,采用松醇油作为起泡剂,可以有效提高捕收剂使用过程中的起泡能力,加大捕收能力,环保、高效。(The invention discloses a novel environment-friendly collecting agent for mineral separation, which is prepared from the following raw materials in parts by weight: 40-55 parts of fatty acid sodium soap, 5-9 parts of sodium oleate, 15-25 parts of sodium laurate soap, 4-6 parts of pine oil, 2-4 parts of dodecyl sulphobetaine, 26-28 parts of polyacrylamide and the balance of water. The novel environment-friendly collecting agent for mineral separation is mainly prepared from fatty acid sodium soap, sodium oleate and sodium laurate soap, has the advantages of small using amount and environmental protection, is prepared from two surfactants, namely dodecyl sulfobetaine and polyacrylamide, and is based on the co-adsorption mechanism of the collecting agent and the surfactants, and through a large number of collecting agent screening tests and actual ore tests, test results show that the foaming capacity of the collecting agent in the using process can be effectively improved, the collecting capacity is increased, and the environment-friendly and efficient effects are achieved.)

1. The novel environment-friendly collecting agent for mineral separation is characterized by comprising the following raw materials in parts by weight: 40-55 parts of fatty acid sodium soap, 5-9 parts of sodium oleate, 15-25 parts of sodium laurate soap, 4-6 parts of pine oil, 2-4 parts of dodecyl sulphobetaine, 26-28 parts of polyacrylamide and 10-15 parts of water.

2. the novel environment-friendly collecting agent for mineral separation according to claim 1, wherein the collecting agent further comprises 20-25 parts of alkyl hydroximic acid.

3. The novel environment-friendly collecting agent for mineral separation according to claim 2, wherein the alkyl hydroximic acid is 8-18 alkyl hydroximic acid.

4. The novel environment-friendly collecting agent for mineral separation according to claim 2, which is characterized by comprising the following raw materials in parts by weight: 40-50 parts of fatty acid sodium soap, 5-8 parts of sodium oleate, 20-22 parts of sodium laurate soap, 5-6 parts of pine oil, 3-4 parts of dodecyl sulphobetaine, 26-28 parts of polyacrylamide, 20-22 parts of alkyl hydroximic acid and 10-15 parts of water.

5. The novel environment-friendly collecting agent for mineral separation according to claim 4, which is characterized by comprising the following raw materials in parts by weight: 40 parts of fatty acid sodium soap, 6 parts of sodium oleate, 21 parts of sodium laurate soap, 5 parts of pinitol oil, 3 parts of dodecyl sulfobetaine, 27 parts of polyacrylamide, 21 parts of alkyl hydroximic acid and 10-15 parts of water.

6. The novel environment-friendly collecting agent for mineral separation according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 50 parts of fatty acid sodium soap, 8 parts of sodium oleate, 20 parts of sodium laurate soap, 5 parts of pinitol oil, 3 parts of dodecyl sulfobetaine, 27 parts of polyacrylamide and 10-15 parts of water.

7. A novel environment-friendly collector for mineral separation according to claim 1, wherein the content of monohydric alcohol in the pine oil is 45% -50%.

Technical Field

The invention relates to a collecting agent for mineral separation, in particular to a novel environment-friendly collecting agent for mineral separation.

Background

Coal resources are one of important material bases for human survival and development, are disposable energy sources with the largest proportion of energy consumption structures in China and even the world, and the sustainable development of the coal industry is related to the sustainable development of national economy. With the development of productivity and the improvement of the scientific and technical level, the ways of mining coal resources by human beings are more and more advanced, and the utilization range is wider and wider. However, environmental pollution caused by discarding a large amount of waste rock and tailings in the development process of coal resources also becomes one of the most important problems facing the continuous development in the world today. The coal tailing resources have great utilization value, and reasonable development and utilization of the coal tailing resources are the necessary way for sustainable development of coal production enterprises. In addition, the rich rock resources of the world are exhausted day by day, and the rock resources of China have the characteristics of less rich ore, more lean ore, less easy-to-select ore and more difficult-to-select ore. And (4) carrying out tailing recleaning on the coal tailings and continuously recovering phosphate concentrate, so that secondary resources are recovered and useful. Flotation is the most effective method for sorting the phosphate concentrate.

the flotation is that the added flotation agent changes the hydrophobic and hydrophilic properties of the surface of the mineral, then the target mineral is obtained by flotation according to needs, and the agent is added to change the hydrophilicity of mineral particles to generate hydrophobicity so as to enable the mineral particles to float, and the agent is generally called as a collecting agent. Collectors are typically polar collectors and non-polar collectors. The polar collector consists of two parts, namely polar groups capable of acting with the surfaces of mineral particles and nonpolar groups playing a hydrophobic role. When the collector is adsorbed on the surface of ore particles, the molecules or ions of the collector are arranged in an oriented mode, polar groups face the surface of the ore particles, and nonpolar groups face outwards to form a hydrophobic film, so that the ore has floatability.

The fatty acid collecting agent is a collecting agent commonly used for phosphorite flotation, has obvious defects at present, mainly has poor selectivity to minerals, large medicament consumption and environmental protection; the solubility of the agent is low, the agent is not well dispersed in water, and the collecting performance is poor. Therefore, the search for a novel safe, environment-friendly and efficient collector for mineral separation is particularly important and urgent under the current conditions of increasingly severe environment protection and sustainable development promotion.

Disclosure of Invention

The invention aims to provide a novel environment-friendly collecting agent for mineral separation aiming at the defects of the prior art.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

A novel environment-friendly collecting agent for mineral separation is composed of the following raw materials in parts by weight: 40-55 parts of fatty acid sodium soap, 5-9 parts of sodium oleate, 15-25 parts of sodium laurate soap, 4-6 parts of pine oil, 2-4 parts of dodecyl sulphobetaine, 26-28 parts of polyacrylamide and 10-15 parts of water; the pH value of the collecting agent is about 8-9.

The novel environment-friendly collecting agent for mineral separation further comprises 20-25 parts of alkyl hydroximic acid.

The novel environment-friendly collecting agent for mineral separation is characterized in that the alkyl hydroximic acid is 8-18 alkyl hydroximic acid. Generally, the collecting agent is higher in the ionic fraction of chemical bonds formed by the action of the collecting agent and metal ions on the surface of a mineral, fatty acid sodium soap and sodium oleate are used independently, the dispersing property of the collecting agent of sodium laurate soap in aqueous solution is poor, the collecting capability is not strong or the foaming capability is not strong when the collecting agent is used independently, alkyl hydroximic acid is matched with longer nonpolar hydrocarbon chain 8-18 alkyl, and the collecting capability of the collecting agent is enhanced.

the novel environment-friendly collecting agent for mineral separation comprises the following raw materials in parts by weight: 40-50 parts of fatty acid sodium soap, 5-8 parts of sodium oleate, 20-22 parts of sodium laurate soap, 5-6 parts of pine oil, 3-4 parts of dodecyl sulphobetaine, 26-28 parts of polyacrylamide, 20-22 parts of alkyl hydroximic acid and 10-15 parts of water.

The novel environment-friendly collecting agent for mineral separation comprises the following raw materials in parts by weight: 40 parts of fatty acid sodium soap, 6 parts of sodium oleate, 21 parts of sodium laurate soap, 5 parts of pinitol oil, 3 parts of dodecyl sulfobetaine, 27 parts of polyacrylamide, 21 parts of alkyl hydroximic acid and 10-15 parts of water.

The novel environment-friendly collecting agent for mineral separation comprises the following raw materials in parts by weight: 50 parts of fatty acid sodium soap, 8 parts of sodium oleate, 20 parts of sodium laurate soap, 5 parts of pinitol oil, 3 parts of dodecyl sulfobetaine, 27 parts of polyacrylamide and 10-15 parts of water.

According to the novel environment-friendly collecting agent for mineral separation, the content of monohydric alcohol in the pine oil is 45% -50%. The terpineol oil foaming agent with the monohydric alcohol content of 45-50% has strong foamability, and can form bubbles with uniform size, moderate viscosity and proper stability.

Compared with the prior art, the collector disclosed by the invention has the following advantages:

1. The mixed collector mainly takes fatty acid sodium soap, sodium oleate and sodium laurate soap as main materials, has the advantages of small dosage and environmental protection, is formed by matching two surfactants of dodecyl sulphobetaine and polyacrylamide, and is subjected to a large number of collector screening tests based on the co-adsorption mechanism of the collector and the surfactant, and the test of actual ore, the test result shows that fatty acid sodium soap, sodium oleate, sodium laurate soap, dodecyl sulphobetaine and polyacrylamide are matched, and the pine oil is used as a foaming agent, can effectively improve the foaming capacity of the collecting agent in the using process, increase the collecting capacity, form the co-adsorption of the collecting agent and the surfactant by combining the components, the association of the collector film is further promoted due to the co-adsorption effect, the surface activity of the reagents is remarkably improved due to the co-adsorption effect of the collector film and the collector film, and the combined reagents show a good synergistic effect.

2. The collecting agent has good selectivity and collecting capability, and greatly improves the collecting capability of phosphorite, so that the recovery rate of the phosphorite can be improved.

3. In general, flotation needs to be carried out under a lower pH value of about 3-5 for other types of collectors to obtain qualified concentrate indexes, so that the consumption of sulfuric acid is greatly reduced, the pollution to the environment is further reduced, and the production cost is reduced.

4. The coal tailings are used for carrying out phosphate concentrate recleaning, and are valuable secondary resources. Meanwhile, the environmental pollution caused by coal tailings is reduced, the secondary use of tailing resource value is realized, the resources are fully saved, and the environment is protected.

Detailed Description

For better understanding of the present invention, the present invention will be further described in detail with reference to the following specific examples, but the present invention is not limited thereto.