DZ/T 0272-2015Codes for comprehensive utilization of mineral resources (English PDF)

3.1 Terms and definitions

The following terms and definitions apply to this document.

3.1.1

Main useful component the main component of the ore that has economic value and can be separately extracted and utilized under current technical and economic conditions. It is mineral the main object of exploration and mining is also a major content to evaluate the quality of ore.

3.1.2

Symbiotic useful component coexistingusefulcomponent in the same mining area (mineral deposit), there are two or more useful components (minerals, elements, the same below) to reach the industrial grade, respectively, or not A group of minerals that have reached the above-mentioned grade but have reached a comprehensive grade of industrial indicators, which are called symbiotic minerals.

Other useful components that are symbiotic with the component are the symbiotic useful components. It includes both comprehensive recovery during mining or processing the components, including those that cannot be separately recovered during processing and utilization, enter the product and are beneficial to the quality of the product.

3.1.3

Associated useful component in the main useful component ore body, it has not reached the industrial grade but has reached the comprehensive evaluation reference index, or has not reached the comprehensive evaluation.

Reference indicators, but can produce products separately in the process of metallurgy or can be enriched in the concentrates and products of the main minerals and meet the pricing standards.

Other useful components that can be comprehensively recycled through the exploitation of the main useful components. For the determination of symbiotic and associated components, please refer to GB/T 25283-2010 mineral resources comprehensive exploration evaluation specifications.

3.1.4

Equivalent grade gradeequivalent the grade of the co-associated component is converted to the grade of the main component according to the price ratio method. When the enterprise itself is assessed, it can be based on the specific for the case, refer to Appendix Q of GB/T 25283-2010.