High-efficiency copper-molybdenum ore collecting agent and preparation method thereof

Abstract

This invention relates to the field of copper-molybdenum ore collectors, and particularly to a high-efficiency copper-molybdenum ore collector and its preparation method. It primarily addresses the problem that existing collectors cannot simultaneously achieve both collecting capacity and dispersibility, especially for low-grade copper-molybdenum ores. The proposed technical solution is as follows: The high-efficiency copper-molybdenum ore collector raw materials include: 50-56% light diesel oil, 30-36% heavy diesel oil, 4-6% naphtha, 2-3% isobutanol, and 3-5% allyl thiouric acid ester. This invention replaces the previously used collector without changing other process parameters or auxiliary reagents. It is simple to use and requires minimal adjustments to the original process. Furthermore, the components are simple and readily available. This copper-molybdenum ore collector balances collecting capacity, dispersibility, and selectivity, especially for low-grade copper-molybdenum ores, significantly improving molybdenum metal recovery rates and reducing collector usage, achieving low cost and high returns. It is mainly applied to the recovery of molybdenum metal from copper-molybdenum ores.

Description

Technical Field

[0001] This invention relates to the field of copper-molybdenum ore collectors, and in particular to a high-efficiency copper-molybdenum ore collector and its preparation method. Background Technology

[0002] Collectors are the most important type of flotation reagents used to alter the hydrophobicity of mineral surfaces, causing floating mineral particles to adhere to air bubbles. They possess two fundamental properties: (1) selective adsorption onto mineral surfaces; and (2) increased hydrophobicity of mineral surfaces, making them easier to adhere to air bubbles, thereby improving mineral floatability. Currently, in China, most copper-molybdenum associated mineral deposits use xanthates and black distillates as co-flotation collectors for copper and molybdenum, and kerosene and diesel oil as separate collectors for copper and molybdenum. Xanthates and black distillates have poor selectivity, easily flocculating many impurities, which is detrimental to subsequent refining operations.

[0003] As hydrocarbon oil collectors, shorter carbon chains result in poorer collecting ability for molybdenum ore but better dispersibility; conversely, longer carbon chains result in better collecting ability but poorer dispersibility. In low-grade ores, kerosene and diesel oil cannot effectively balance collecting ability and dispersibility in low-grade copper-molybdenum ore. Therefore, we propose a highly efficient copper-molybdenum ore collector and its preparation method. Summary of the Invention

[0004] The purpose of this invention is to address the problem that existing collectors in the background art cannot simultaneously achieve both collecting ability and dispersibility, especially for the collection of low-grade copper-molybdenum ores, and to propose a highly efficient copper-molybdenum ore collector and its preparation method.

[0005] The technical solution of the present invention is: a high-efficiency copper-molybdenum ore collector and its preparation method. The raw materials of the high-efficiency copper-molybdenum ore collector include: 50-56% light diesel oil, 30-36% heavy diesel oil, 4-6% naphtha, 2-3% isobutanol, and 3-5% allyl thiouric acid ester.

[0006] Preferably, the distillation range of the naphtha is 160℃-200℃.

[0007] Preferably, the raw materials for the high-efficiency copper-molybdenum ore collector include: 50% light diesel oil, 36% heavy diesel oil, 6% naphtha, 3% isobutanol, and 5% allyl thiouric acid ester.

[0008] Preferably, the raw materials for the high-efficiency copper-molybdenum ore collector include: 55% light diesel oil, 35% heavy diesel oil, 4% naphtha, 3% isobutanol, and 3% allyl thiouric acid ester.

[0009] Preferably, the raw materials for the high-efficiency copper-molybdenum ore collector include: 56% light diesel oil, 30% heavy diesel oil, 6% naphtha, 3% isobutanol, and 5% allyl thiouric acid ester.

[0010] Preferably, the raw materials for the high-efficiency copper-molybdenum ore collector include: 52.5% light diesel oil, 35% heavy diesel oil, 5% naphtha, 2.5% isobutanol, and 5% allyl thiouric acid ester.

[0011] Preferably, the raw materials for the high-efficiency copper-molybdenum ore collector include: 55% light diesel oil, 33% heavy diesel oil, 6% naphtha, 2% isobutanol, and 4% allyl thiouric acid ester.

[0012] Preferably, the preparation method of the high-efficiency copper-molybdenum ore collector includes the following preparation steps:

[0013] Step 1: Preliminary mixing of components: Calculate and weigh the corresponding masses of light diesel oil, heavy diesel oil and naphtha, and stir them in an open container for 10 minutes using a glass stirring rod;

[0014] Step 2: Secondary mixing of components: Weigh out the total mass of isobutanol and allyl thiourethane, and put the mixture from Step 1 into a stirrer with heating function. First, add 20% isobutanol and 80% allyl thiourethane and keep it warm while stirring. Then add the remaining 80% isobutanol and 20% allyl thiourethane and continue to keep it warm while stirring.

[0015] Step 3: Cooling before use: Cool the scavenging agent obtained in Step 2 to room temperature.

[0016] Preferably, in step two, the initial stirring temperature is 45°C, and the stirring time is 30 minutes; the subsequent stirring temperature is 50°C, and the stirring time is 30 minutes.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] This invention utilizes a blend of various hydrocarbon oils with different carbon chain lengths, including light diesel oil, heavy diesel oil, and naphtha, and modifies them with isobutanol. This allows the molybdenum collector to simultaneously achieve excellent collecting and dispersing properties. The addition of allyl thiouric acid ester organic compounds enhances the collection ability for copper and molybdenum, resulting in better selectivity compared to traditional xanthate collectors. Furthermore, the collector of this invention does not require significant modifications or adjustments to existing flotation processes in ore fields, making it convenient to apply and requiring minimal adjustments.

[0019] This invention replaces the original collector without changing other process parameters or auxiliary agents. It is simple to use and operate, requires little adjustment to the original process, and has simple and readily available components. It is a copper-molybdenum ore collector that can balance collecting capacity, dispersion, and selectivity, especially for low-grade copper-molybdenum ores. It significantly improves the recovery rate of molybdenum metal, reduces the amount of collector used, and achieves low cost and high returns. Detailed Implementation

[0020] The technical solution of the present invention will be further described below with reference to specific embodiments.

[0021] Example 1

[0022] This invention proposes a high-efficiency copper-molybdenum ore collector, the raw materials of which include: 50% light diesel oil, 36% heavy diesel oil, 6% naphtha, 3% isobutanol, and 5% allyl thiouric acid ester. The distillation range of the naphtha is 160℃-200℃.

[0023] Example 2

[0024] This invention proposes a high-efficiency copper-molybdenum ore collector, the raw materials of which include: 55% light diesel oil, 35% heavy diesel oil, 4% naphtha, 3% isobutanol, and 3% allyl thiouric acid ester. The distillation range of the naphtha is 160℃-200℃.

[0025] Example 3

[0026] This invention proposes a high-efficiency copper-molybdenum ore collector, the raw materials of which include: 56% light diesel oil, 30% heavy diesel oil, 6% naphtha, 3% isobutanol, and 5% allyl thiouric acid ester. The distillation range of the naphtha is 160℃-200℃.

[0027] Example 4

[0028] This invention proposes a high-efficiency copper-molybdenum ore collector, the raw materials of which include: 52.5% light diesel oil, 35% heavy diesel oil, 5% naphtha, 2.5% isobutanol, and 5% allyl thiouric acid ester. The distillation range of the naphtha is 160℃-200℃.

[0029] Example 5

[0030] This invention proposes a high-efficiency copper-molybdenum ore collector, the raw materials of which include: 55% light diesel oil, 33% heavy diesel oil, 6% naphtha, 2% isobutanol, and 4% allyl thiouric acid ester. The distillation range of the naphtha is 160℃-200℃. Example

[0031] This invention also proposes a method for preparing a highly efficient copper-molybdenum ore collector, comprising the following preparation steps:

[0032] Step 1: Preliminary mixing of components: Calculate and weigh the corresponding masses of light diesel oil, heavy diesel oil and naphtha, and stir them in an open container for 10 minutes using a glass stirring rod;

[0033] Step 2: Secondary mixing of components: Weigh out the total mass of isobutanol and allyl thiourethane, and put the mixture from Step 1 into a stirrer with heating function. First, add 20% isobutanol and 80% allyl thiourethane and stir at a temperature of 45°C for 30 minutes. Then add the remaining 80% isobutanol and 20% allyl thiourethane and continue stirring at a temperature of 50°C for 30 minutes.

[0034] Step 3: Cooling before use: Cool the scavenging agent obtained in Step 2 to room temperature.

[0035] The following table shows the data from closed-circuit tests conducted on a copper-molybdenum mine according to Embodiments 1 to 5 of the present invention:

[0036]

[0037] The table below shows the data from a closed-circuit test of a kerosene collector at a copper-molybdenum mine:

[0038]

[0039] The two data tables above show that in copper-molybdenum mines where molybdenum is the main component, the application of the present invention in Examples 1 to 5 is effective, significantly improving the molybdenum metal recovery rate while reducing the amount of collector used, achieving low cost and high returns.

[0040] The above specific embodiments are merely several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A highly efficient copper-molybdenum ore collector, characterized in that, The raw materials for high-efficiency copper-molybdenum ore collectors include: 50-56% light diesel oil, 30-36% heavy diesel oil, 4-6% naphtha, 2-3% isobutanol, and 3-5% allyl thiouric acid ester.

2. The high-efficiency copper-molybdenum ore collector according to claim 1, characterized in that, The distillation range of the naphtha is 160℃-200℃.

3. The high-efficiency copper-molybdenum ore collector according to claim 1, characterized in that, The raw materials for the high-efficiency copper-molybdenum ore collector include: 50% light diesel oil, 36% heavy diesel oil, 6% naphtha, 3% isobutanol, and 5% allyl thiouric acid ester.

4. The high-efficiency copper-molybdenum ore collector according to claim 1, characterized in that, The raw materials for the high-efficiency copper-molybdenum ore collector include: 55% light diesel oil, 35% heavy diesel oil, 4% naphtha, 3% isobutanol, and 3% allyl thiouric acid ester.

5. The high-efficiency copper-molybdenum ore collector according to claim 1, characterized in that, The raw materials for the high-efficiency copper-molybdenum ore collector include: 56% light diesel oil, 30% heavy diesel oil, 6% naphtha, 3% isobutanol, and 5% allyl thiouric acid ester.

6. The high-efficiency copper-molybdenum ore collector according to claim 1, characterized in that, The raw materials for the high-efficiency copper-molybdenum ore collector include: 52.5% light diesel oil, 35% heavy diesel oil, 5% naphtha, 2.5% isobutanol, and 5% allyl thiouric acid ester.

7. The high-efficiency copper-molybdenum ore collector according to claim 1, characterized in that, The raw materials for the high-efficiency copper-molybdenum ore collector include: 55% light diesel oil, 33% heavy diesel oil, 6% naphtha, 2% isobutanol, and 4% allyl thiouric acid ester.

8. The method for preparing the high-efficiency copper-molybdenum ore collector according to any one of claims 1-7, characterized in that, The preparation steps include the following: Step 1: Preliminary mixing of components: Calculate and weigh the corresponding masses of light diesel oil, heavy diesel oil and naphtha, and stir them in an open container for 10 minutes using a glass stirring rod; Step 2: Secondary mixing of components: Weigh out the total mass of isobutanol and allyl thiourethane, and put the mixture from Step 1 into a stirrer with heating function. First, add 20% isobutanol and 80% allyl thiourethane and keep it warm while stirring. Then add the remaining 80% isobutanol and 20% allyl thiourethane and continue to keep it warm while stirring. Step 3: Cooling before use: Cool the scavenging agent obtained in Step 2 to room temperature.

9. The method for preparing a high-efficiency copper-molybdenum ore collector according to claim 8, characterized in that, In step two, the first stirring temperature is 45℃, and the stirring time is 30 minutes; the second stirring temperature is 50℃, and the stirring time is 30 minutes.