Method for analyzing saturation degree and chemical equilibrium of brine solution and application thereof

A chemical balance and saturation technology, applied in the field of geological exploration research, can solve the problems of lack of calculation of mineral activity product, difficult application and operation by technicians, etc.

Inactive Publication Date: 2011-05-04
中国地质环境监测院 +1
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Problems solved by technology

[0002] In the prior art, there is a lack of methods for calculating the activity product of minerals and judging the direction of solution chemical equilibrium. In the prior art, in the process of calculating the activity product of minerals, the input data is not the concentration of various ions, but the second virion coefficient, the third virial coefficient and the free energy of each mineral, which are difficult to apply and operate for ordinary technicians

Method used

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  • Method for analyzing saturation degree and chemical equilibrium of brine solution and application thereof
  • Method for analyzing saturation degree and chemical equilibrium of brine solution and application thereof
  • Method for analyzing saturation degree and chemical equilibrium of brine solution and application thereof

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Embodiment Construction

[0114] The present invention is applied to the calculation of the brine saturation state of a salt lake, and the current state of the brine can be obtained through calculation. KMgCl in Example 1 3 ·6H 2 The activity product / solubility product of O is close to 0.7, indicating that K in the brine is close to saturation at this time, and the activity product / solubility product of NaCl is greater than 1, indicating that NaCl is saturated and has a tendency to precipitate. Can guide salt lake mineral production.

[0115] Adopt ion special interaction model described in the present invention to be the semi-empirical formula of calculating the permeability coefficient of activity coefficient and solvent, its process is as follows,

[0116] ln γ M = z M 2 F + Σ a m a ( ...

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Abstract

The invention belongs to the field of geological exploration and research, relates to analysis of dissolution equilibrium of a multi-component water-salt (rock) system, in particular to judgment of the chemical equilibrium proceeding direction of brine solution or carbonate solution by calculating activity product and comparing the activity product with solubility product. Data such as the concentration of each ion, temperature and the like needs inputting, so that the invention is more specific and visual, and easy to implement for the common technical personnel.

Description

technical field [0001] The invention belongs to the analysis of the dissolution balance of multi-component water-salt (rock) systems in the field of geological exploration research, and particularly relates to a kind of high-zero brine solution or carbonate solution. By comparing the activity product and the solubility product, it is used to Determine the direction in which the chemical equilibrium of a solution proceeds. Background technique [0002] In the prior art, there is a lack of methods for calculating the activity product of minerals and judging the direction of solution chemical equilibrium. In the prior art, in the process of calculating the activity product of minerals, the input data is not the concentration of various ions, but the second virion coefficient, the third virial coefficient and the free energy of each mineral, which are difficult to apply and operate for ordinary technicians. At the same time, it is very important to analyze the saturation of hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N31/02
Inventor 李文鹏郝爱兵刘振英焦鹏程刘成林王文祥王石军陈永志
Owner 中国地质环境监测院
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