Method for rapidly preparing sheet by powdered phosphorite

Abstract

The invention relates to a method for rapidly preparing a sheet by powdered phosphorite, in particular to a method for rapidly preparing a sheet observed under a polarizing microscope by powdered phosphorite. According to the method, (1), the phosphorite is ground into particles with the particle sizes of minus 0.1 mm, uniform mixing is performed, a trace of ore sample is taken by a sample spoon and spread in the middle of a glass slide; and (2), 1-2 water drops are dropped in the place where the ore sample is spread, the place is covered with cover glass, the cover glass is slide forward and backward slightly by an index finger, bubbles between the cover glass and the glass slide are completely removed, the ore sample is uniformly spread simultaneously, and the qualified phosphorite sheet can be obtained. According to the method, the sheet observed under the polarizing microscope is rapidly prepared by the phosphorite, the shapes of the phosphorite particles are not damaged, and measured particle granularity and single separation degree data can better reflect true data of an ore sample. The method is simple in operation, and time and cost for sheet preparation are greatly saved.

Description

technical field [0001] The invention relates to a method for rapidly preparing thin slices of powdered phosphorite, in particular to a method for rapidly preparing thin slices of powdered phosphorite for observation under a polarizing microscope. Background technique [0002] Phosphate rock is a non-renewable and alternative resource, and has been listed by the Ministry of Land and Resources as one of the twenty minerals that cannot meet the needs of national economic development after 2010. More than 80% of the phosphate rock resources are colloidal phosphate rocks that are difficult to select, and with the development of phosphate rock mining toward "poor, fine, and miscellaneous", the difficulty of mineral processing is also increasing. The process mineralogy research of ore can check the selectability of ore, select the processing process of ore, determine the comprehensive utilization plan of ore, etc., and in the process of process mineralogy research of ore, the parti...

AI Technical Summary

Problems solved by technology

[0003] Polarizing microscope is one of the most commonly used instruments for the mineralogical research of phosphate rock process. To observe the mineral sample under the polarizing microscope, the mineral sample must be made into a thin slice. In the past, the powdered mineral sample was prepared by mixing mineral powder and resin glue Mixing and solidification, after a series of cumbersome processes such as grinding and polishing-bonding-grinding-polishing-covering glass, etc., it is time-consuming and laborious, and the technical requirements are high. Often when the second grinding and polishing is performed, the strength is not well controlled. It is easy to cause thin slices to become waste products, so a backup is generally made when solidifying ore samples, which increases the cost of thin slice preparation

In the process of sample testing, the particle size statistics and the degree of dissociation of mineral monomers are measured with ground thin slices. There is a cross-section effect, and the measured data cannot reflect the true characteristics of the ore sample.

Images