Hydrometallurgical gold cyanide leaching optimization method

A hydrometallurgy and process optimization technology, applied in the direction of instruments, adaptive control, control/regulation systems, etc., can solve the problems of blindly excessive addition, insufficient raw material addition, waste, etc., and achieve the effect of avoiding raw material waste.

Active Publication Date: 2015-05-06
NORTHEASTERN UNIV
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Problems solved by technology

[0012] (2) According to production requirements and production site conditions, optimize and guide the amount of raw materials added in the production process, and formulate a reasonable production plan to solve problems such as insufficient raw material additions and blindly excessive additions in the production process to ensure that production requirements are met while avoiding wastage of raw materials

Method used

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  • Hydrometallurgical gold cyanide leaching optimization method
  • Hydrometallurgical gold cyanide leaching optimization method
  • Hydrometallurgical gold cyanide leaching optimization method

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Embodiment 1

[0181] Embodiment 1: online optimization of gold cyanide leaching process

[0182] The first step, selection of auxiliary variables: the selection of auxiliary variables is the first step in establishing optimization. This step determines the input information matrix of the optimization model, which is crucial to the success of the optimization operation. The selection of auxiliary variables includes the selection of variable type, the selection of variable number and the selection of detection point location.

[0183] The auxiliary variables selected in the present invention include: ore flow, sodium cyanide flow, dissolved oxygen concentration, pulp concentration, particle size, initial gold grade, and initial sodium cyanide concentration.

[0184] The second step, data collection: data collection was carried out at the site of the leaching process.

[0185] Since in practical problems, the measurement units of each variable are inconsistent, without certain processing, the...

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Abstract

The invention discloses a hydrometallurgical gold cyanide leaching optimization method. By using the traditional hydrometallurgical gold cyanide leaching process and based on stable production and production index, the production cost is minimized. The method comprises the following process steps of: (1), data collection; (2), selection and data processing of auxiliary variables; (3), establishment of an optimization model; (4), solution of the optimization model; and (5), determining of operation guidance of the leaching process optimization. According to production requirements and production site conditions, additive amount of raw materials in the guidance production process is optimized, a reasonable production plan is developed, problems of insufficient additive amount of the raw materials and excessive additive amount in the production process are solved, the production requirements are ensured, and waste of the raw materials is avoided.

Description

technical field [0001] The invention belongs to the field of hydrometallurgy, and in particular provides an optimization method for cyanide leaching process of gold hydrometallurgy, which can minimize the total production cost under the premise of ensuring stable production and meeting production indicators. Background technique [0002] Hydrometallurgy can process complex ore, low-grade ore, etc., and has less environmental pollution. Therefore, many new gold hydrometallurgical processes have emerged and been widely used. Although my country does not lag behind foreign countries in gold hydrometallurgical technology, the automatic control technology that adapts to it is far behind foreign countries. Therefore, it is difficult to achieve high-efficiency and low-consumption utilization of mineral resources through optimal control like foreign countries. Obviously, as the demand for mineral resources continues to increase, it becomes extremely difficult to improve the economic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/02C22B11/08
Inventor 毛志忠周俊武贾润达牛大鹏张俊王俊鹏
Owner NORTHEASTERN UNIV
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