Method for measuring leaching parameters of dump leaching mineral pile at different depths
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A heap leaching and parameter technology, which is applied in the fields of solution mining and environmental protection, can solve problems such as errors, failure to maintain the consistency of heap leaching ore piles, and inability to obtain test column leaching liquid samples, etc.
Inactive Publication Date: 2013-11-27
NANHUA UNIV
View PDF3 Cites 5 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0007] However, the traditional column leaching is single-column leaching, and the seepage of the leaching solution during the leaching process is an unsaturated seepage. In this state, because the matrix suction in the uranium ore aggregate in the test column is negative, it is impossible to obtain different results of the test column. It is also difficult to take test ore samples from different depths of the test column for leachate samples at different depths, so that the leaching rate of useful metals, concentrations of leaching agents and oxidants, and pH, Eh, etc. Determination of paramete
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
specific Embodiment approach
[0036] The present invention provides a method for measuring leaching parameters at different depths of heap leaching ore piles. The method uses a set of parallel column leaching test systems composed of two or more test columns of different lengths, wherein the number of test columns is according to needs The number of measuring points for measuring heap leaching parameters is determined, which is consistent with the number of measuring points; the loading height of each test column is consistent with the depth of the measuring points required to determine the leaching parameters. Follow the instructions attached figure 1 And figure 2 After completing the installation of the parallel column leaching test system, use the on-site heap leaching solution concentration, oxidant concentration, liquid distribution strength, liquid-solid ratio, liquid distribution time and other parameters for liquid distribution, and collect the leaching liquid.
[0037] If you need to know the leachin...
Embodiment 1
[0041] For a mine pile with a height of 3 m, the concentration of useful metals in the leaching solution at a depth of 0.5 m, 1.0 m, 1.5 m, 2.0 m, 2.5 m, and 3.0 m, pH, Eh, and leaching rate and other leaching parameters over time need to be measured Variety.
[0042] Using 6 test columns to form a parallel column leaching test system, 1 # -6 # The loading heights of the test pillars are 0.5 m, 1.0 m, 1.5 m, 2.0 m, 2.5 m, and 3.0 m, respectively, which are used to simulate the pile depth at 0.5 m, 1.0 m, 1.5 m, 2.0 m, 2.5 m, and 3.0 m. The leaching parameters.
[0043] Prepare test uranium ore with a particle size distribution of 0-9 mm and mix it evenly. A layer of quartz sand with a thickness of 3 cm was laid on the bottom of the buffer space, and then a layer of test ore with a thickness of 2 cm was laid on it, and the conical funnel and the buffer space were connected and fixed on the support. Pass the plexiglass column tube through the round holes on the bracket and connect ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to a method for measuring leaching parameters of a dump leaching mineral pile at different depths. A parallel column leaching test system is formed by using two or more test columns with different lengths, wherein the number of the test columns and the number of measuring points of leaching parameters of a dump leaching mineral pile to be measured are the same; the ore loading height of each test column and the depths of the measuring points of the leaching parameters of the dump leaching mineral pile to be measured are the same. According to the method provided by the invention, a leaching solution and test ore samples of the dump leaching mineral pile at the different depths can be conveniently obtained, so that the leaching parameters, such as leaching rates of useful metals, concentrations, pH values and Eh values of a leaching agent and an oxidizing agent at different depths of the dump leaching mineral pile and the variation of the parameters along with the time are detected. Meanwhile, the invention further provides a method for detecting the leaching parameters, such as removal rates of harmful metals, recovery rates of the useful metals, concentrations, pH values and Eh values of the leaching agent and the oxidizing agent at different depths of the dump leaching mineral pile and the variation of the parameters along with the time for dump leaching treatment of solid wastes, harmful metal contamination soil and electronic wastes.
Description
technical field [0001] The invention belongs to the field of leaching mining, and in particular relates to a method for measuring the leaching rate of useful metals at different times and different depths in a heap leaching ore heap, the concentration of a leaching agent and an oxidant, and leaching parameters such as pH and Eh. [0002] The invention also belongs to the technical field of environmental protection, and specifically relates to a heap leaching method used to treat solid waste, harmful metal-contaminated soil and electronic waste, and to measure the removal rate of harmful metals at different times and different depths of the leaching heap, the recovery rate of useful metals, The concentration of leaching agent and oxidant and the method of leaching parameters such as pH and Eh. Background technique [0003] The characteristics of my country's uranium ore resources are that low-grade hard rock uranium ore accounts for a large proportion, and there are many type...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more