Oxygen-sulfur mixed floatation copper ore high-efficiency collector, and preparation method and application thereof

Abstract

The application discloses a kind of oxygen sulfur mixed flotation copper ore high-efficiency collector and its preparation method and application.The oxygen sulfur mixed flotation copper ore high-efficiency collector is the mixture of monoolefin polymer and thiazole mercaptan, and the weight ratio of monoolefin polymer and thiazole mercaptan is (1:1)~(1:6);Preparation method is in reaction tank monoolefin polymer and thiazole mercaptan are added, aluminum chloride and ethanol are added, temperature is controlled at 30~50 DEG C, stirring is carried out for 30min, and the target object monoolefin hydrocarbon polymer and thiazole mercaptan mixture is obtained, washed with deionized water, and then dried with anhydrous sodium sulfate to obtain oxygen sulfur mixed flotation copper ore high-efficiency collector.The application gives full play to synergistic effect, improves the adsorption intensity of collector on mineral surface, enhances the hydrophobicity of mineral surface, and improves the recovery rate of different types of copper minerals in associated oxygen sulfur mixed ore.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical and chemical technology, specifically relating to a high-efficiency collector for oxygen-sulfur mixed flotation of copper ore, its preparation method, and its application. Background Technology

[0002] Due to the diverse types of copper minerals, with oxides and sulfides intermingled, and the overlapping effects of impurity elements replacing crystal cells, the floatability of minerals varies, leading to insufficient compatibility between conventional flotation reagents and ore properties and processes. This results in high impurity content in copper concentrates and room for improvement in copper recovery rates. To achieve better copper recovery, it is essential to develop a highly efficient, environmentally friendly, and inexpensive copper ore collector. Therefore, developing a highly efficient collector suitable for oxygen-sulfur mixed flotation of copper ore in my country is of great significance. Summary of the Invention

[0003] The first objective of this invention is to provide a highly efficient collector for oxygen-sulfur mixed flotation of copper ore; the second objective is to provide a method for preparing the aforementioned highly efficient collector for oxygen-sulfur mixed flotation of copper ore; and the third objective is to provide the application of the aforementioned highly efficient collector for oxygen-sulfur mixed flotation of copper ore.

[0004] The first objective of this invention is achieved by the fact that the oxygen-sulfur mixed flotation copper ore high-efficiency collector is composed of a monoolefin polymer and a thiazole mercaptan.

[0005] The second objective of this invention is achieved by including a main reaction and a post-processing step, specifically including: A. Main reaction: Add catalyst and solvent to reaction vessel, and under stirring conditions, control solvent temperature at 30~50℃, add monoolefin polymer and thiazole mercaptan in the formula ratio in sequence, stir reaction for 20~40min to obtain material a; B. Post-processing: The oily substance in material a is decanted, washed with deionized water, and then dried to obtain the target substance, oxygen-sulfur mixed flotation copper ore high-efficiency collector.

[0006] The specific steps are as follows: A. Add aluminum chloride granules and ethanol to the reaction vessel. Under stirring conditions, control the temperature at 30~50℃, gradually add monoolefin polymer and thiazole mercaptan, and stir for 30 min to obtain material a. B. Pour out the oily substance from material a, wash with deionized water, and then dry with anhydrous sodium sulfate to obtain material b, which is the target substance, oxygen-sulfur mixed flotation copper ore high-efficiency collector.

[0007] The third objective of this invention is achieved by the application of the aforementioned high-efficiency collector for oxygen-sulfur mixed flotation of copper ore in a short-process rapid flotation process for oxygen-sulfur mixed ore.

[0008] This invention fully leverages synergistic effects, enhancing the adsorption strength of the collector on the mineral surface, increasing the hydrophobicity of the mineral surface, and improving the recovery rate of different types of copper minerals in associated oxygen-sulfur mixed ores.

[0009] The advantages of this invention are: 1. The preparation method is simple and can replace traditional xanthate and thiouric acid ester collectors. It has low toxicity, low irritation, high solubility, is easy to use, has good group selectivity, and can effectively improve the quality of different copper mineral concentrates.

[0010] 2. It has good degradability after production and use, and can be naturally degraded after being stored in the tailings dam for a certain period of time, which is environmentally friendly; it has a significant flotation effect and strong collection ability for different types of copper minerals, and is especially suitable for short-process rapid flotation of oxygen-sulfur mixed ores.

[0011] 3. Low cost and easy to scale up for industrial production.

[0012] 4. The production process does not generate any waste or secondary pollution, making it environmentally friendly. Detailed Implementation

[0013] The present invention will be further described below with reference to embodiments, but this is not intended to limit the present invention in any way. Any modifications or substitutions made based on the teachings of the present invention shall fall within the protection scope of the present invention.

[0014] The oxygen-sulfur mixed flotation copper ore high-efficiency collector described in this invention is composed of a monoolefin polymer and a thiazole mercaptan.

[0015] The mass ratio of the monoolefin polymer to the thiazole mercaptan is 1:(1~10).

[0016] The mass ratio of the monoolefin polymer to the thiazole mercaptan is 1:(1~6).

[0017] The preparation method of the high-efficiency collector for oxygen-sulfur mixed flotation of copper ore according to the present invention includes a main reaction and a post-processing step, specifically including: A. Main reaction: Add catalyst and solvent to reaction vessel, and under stirring conditions, control solvent temperature at 30~50℃, add monoolefin polymer and thiazole mercaptan in the formula ratio in sequence, stir reaction for 20~40min to obtain material a; B. Post-processing: The oily substance in material a is decanted, washed with deionized water, and then dried to obtain the target substance, oxygen-sulfur mixed flotation copper ore high-efficiency collector.

[0018] The catalyst mentioned in step A is aluminum chloride particles.

[0019] The solvent mentioned in step A is an ethanol solution.

[0020] The drying process described in step B involves using anhydrous sodium sulfate.

[0021] The application of the oxygen-sulfur mixed flotation high-efficiency collector for copper ore described in this invention is its application in the short-process rapid flotation process of oxygen-sulfur mixed ore.

[0022] The invention will be further illustrated below with specific implementation examples: Example 1

[0023] Raw material: 3,3-diethyl-1-butene, Shandong Shouhua Chemical Co., Ltd., content ≥99%; Dichloropropylene: Shandong Chuxin Chemical Co., Ltd., content ≥99%; Thiazole thiol: Wuhan Jixin Yibang Biotechnology Co., Ltd., content ≥99%; Anhydrous ethanol: Wuhan Xingdeshun Chemical Co., Ltd., purity 94%; Weight ratio: 3,3-diethyl-1-butene: dichloropropene: thiazolyl mercaptan = 2:2:1.

[0024] A. Add aluminum chloride granules and anhydrous ethanol to the reaction vessel. Under stirring conditions, control the temperature at 30~50℃, and gradually add 3,3-diethyl-1-butene, dichloropropene and thiazole mercaptan. Stir for 30~40 minutes to obtain material a.

[0025] B. Pour out the oily substance from material a, wash with deionized water, and then dry with anhydrous sodium sulfate to obtain material b, which is the target substance, oxygen-sulfur mixed flotation copper ore high-efficiency collector.

[0026] A highly efficient collector for oxygen-sulfur mixed flotation of copper ore was prepared into a 1% concentration liquid by adding fatty acid polyoxyethylene ester emulsifier. The liquid was added at a rate of 100g / t to the ore slurry, stirred for 2 minutes, and then aerated for 6 minutes. The resulting froth product showed a copper recovery rate of 92.11% and a copper grade of 26.34%, which is superior to the current xanthate product (xanthate product at 100g / t of raw ore has a recovery rate of about 84.67% and a copper grade of 25.37%).

[0027] Example 2

[0028] Raw material: Polyisobutylene, Shandong Huasheng New Material Co., Ltd., content ≥99%; 3,3-Diethyl-1-butene, Shandong Shouhua Chemical Co., Ltd., content ≥99%; Imidazolium: Nantong Runfeng Petrochemical Co., Ltd., content ≥99%; Anhydrous ethanol: Wuhan Xingdeshun Chemical Co., Ltd., purity 94%; Weight ratio: Polyisobutylene: 3,3-diethyl-1-butene: imidazole thiol = 2:2:1.

[0029] A. Add aluminum chloride granules and anhydrous ethanol to the reaction vessel. Under stirring conditions, control the temperature at 30~50℃, and gradually add 3,3-diethyl-1-butene, diisobutylene and imidazole thiol. Stir for 30~40 minutes to obtain material a.

[0030] B. Pour out the oily substance from material a, wash with deionized water, and then dry with anhydrous sodium sulfate to obtain material b, which is the target substance, oxygen-sulfur mixed flotation copper ore high-efficiency collector.

[0031] A highly efficient collector for oxygen-sulfur mixed flotation of copper ore was prepared by adding fatty acid polyoxyethylene ester emulsifier to form a 1% concentration liquid. The addition amount was 150g / t, which was added to the ore slurry. After stirring for 2 minutes and aerating flotation for 6 minutes, the copper recovery rate of the froth product was 91.05% and the copper grade was 25.72%, which is better than the current xanthate product (the xanthate product has a recovery rate of about 85.28% and a copper grade of 24.60% for 200g / t of raw ore).

Claims

1. A method for preparing a high-efficiency collector for oxygen-sulfur mixed flotation of copper ore, comprising: A. Add aluminum chloride granules and anhydrous ethanol to the reaction vessel. Under stirring conditions, control the temperature at 30~50℃, and gradually add 3,3-diethyl-1-butene, dichloropropene and thiazole mercaptan. Stir for 30~40 min to obtain material a. B. Pour out the oily substance in material a, wash with deionized water, and then dry with anhydrous sodium sulfate to obtain an efficient collector for oxygen-sulfur mixed flotation of copper ore. The mass ratio of 3,3-diethyl-1-butene, dichloropropylene, and thiazolyl mercaptan is 2:2:1.