This dataset focuses on complex fine-grained toxic sand gold deposits and systematically covers key data for the study of process mineralogy and surface properties of this type of gold deposit. The process mineralogy data includes the content of major elements in the ore, mineral composition and content, the distribution characteristics and particle size distribution of gold carrying minerals (such as arsenopyrite, pyrite, magnetite, etc.), the occurrence state and distribution relationship of gold, etc; Surface property data covers key indicators such as wettability (contact angle), surface electrical properties (dynamic potential, isoelectric point), and floatability of characteristic minerals (pyrite, arsenopyrite, magnetite, sericite, quartz, etc.). This dataset provides basic data support for the research and development of mineral processing agents, optimization of flotation processes, and efficient development and utilization of complex fine-grained toxic sand gold mines.
This dataset mainly covers the relevant data of process mineralogy and surface properties research of gold ore samples used in the project, including chemical composition, mineral composition, particle size characteristics, occurrence state and distribution relationship of gold, surface properties such as wettability and electrical properties of characteristic minerals, and other related experimental data. The research results of this section have laid the foundation for the subsequent development of mineral processing reagents and flotation experiments.
1. Name explanation: Chemical composition: refers to the content data of the main elements in the ore; Mineral composition: refers to the types and proportions of various minerals in the ore; Particle size characteristics: refers to the size distribution data of mineral particles, including the embedding ratio of different particle sizes; The occurrence state and distribution relationship of gold: refers to the distribution form of gold in carrier minerals and the spatial relationship data with other minerals; Wettability: Data reflecting the hydrophilic/hydrophobic properties of mineral surfaces through the characterization of mineral surface contact angles; Electricity: refers to the data reflecting the surface charge characteristics such as mineral surface dynamic potential and isoelectric point.
2. Dimension (unit of measurement): Au content is measured in grams per ton (g/t); The content unit of other elements (such as SiO ₂, Al ₂ O3, As, S, etc.) is percentage (%); The particle size unit is micrometers (μ m, mm); The unit of contact angle is degrees (°); The unit of dynamic potential is millivolts (mV).
3. Data accuracy: Chemical analysis data accuracy: Au and Ag determination accuracy up to 0.01g/t, other elements up to 0.001%; Particle size analysis accuracy: The particle size distribution data is accurate to 0.01%; Contact angle measurement accuracy: up to 0.01 ° (such as natural contact angle of 41.96 ° for pyrite), etc.
The data in this dataset is sourced from experimental observations. Domestic samples were taken from the Huanglonggou gold deposit belt of Qinghai Dulan Jinhui Mining Co., Ltd. (a typical complex fine-grained toxic sand gold deposit), while foreign samples were taken from the Tarot gold deposit in the Sogdian region of Tajikistan. To ensure the representativeness of the samples, after strict sample processing, the samples were taken using the grid reduction method. The instruments and methods used in the experimental process include: X-ray fluorescence spectrometer for qualitative analysis of chemical composition, chemical multiple analysis for quantitative content of elements, optical microscope for analysis of mineral types and embedding characteristics, Minilab ILMS contact angle analyzer for measuring mineral surface wettability, potentiodynamic analyzer for measuring mineral surface electrical properties, single mineral flotation test for examining mineral floatability, etc.
The data in this dataset is experimental observation data, and the processing process is as follows: first, the gold ore samples are standardized and sampled using the grid reduction method to ensure sample representativeness; Subsequently, digital determination and recording of the chemical composition of the sample were carried out using methods such as X-ray fluorescence spectroscopy and chemical multivariate analysis; Obtain mineral composition, embedding characteristics, and other data through optical microscopy analysis, and perform image digitization processing; Conduct experimental tests on surface properties such as wettability and electrical properties of minerals using equipment such as contact angle measuring instruments and potentiometers, and record raw data; All data is processed through quality control measures such as precision verification and outlier detection to ensure accuracy and reliability of the data.
The data is accurate and meets the precision requirements.
| # | number | name | type |
| 1 | 2023YFE0104100 | National key R & D plan |
This work is licensed under
CC BY 4.0 (Creative Commons Attribution 4.0 International License).
CSTR:11738.11.NCDC.EMXK_01.DB6976.2025
