Preparation method and preparation device for lateritic cobalt and nickel ore analytical samples

Abstract

The invention specifically relates to a preparation method and a preparation device for lateritic cobalt and nickel ore analytical samples. The preparation method comprises the steps of: drying and rolling lateritic cobalt and nickel ore samples thinly, conducting classification with a screening instrument sieve having a mesh size of 2mm, and reserving the sifted samples; washing the unsifted samples in a sieve with a mesh size of 2mm and removing washed gravels; subjecting the washed samples to dehydration in pumping filtration equipment (water is pumped from a Buchner funnel through a vacuum pump) and drying so as to prepare unsifted samples, and then mixing well the reserved sifted samples and the prepared unsifted samples, carrying out division by a coning and quartering method, and milling the mixed samples to 200 meshes through a milling machine, thus obtaining the lateritic cobalt and nickel ore analytical samples. The lateritic cobalt and nickel ore analytical samples prepared by the method of the invention can represent the grades of cobalt and nickel in cobalt and nickel ore deposits. The problem of low grades of cobalt and nickel ore deposits due to direct washing without sample smashing can be overcome. Simultaneously, the method of the invention also provides important technical support for cobalt and nickel ore deposit smelting.

Description

technical field [0001] The invention belongs to the field of laterite-type cobalt and nickel ore analysis, and in particular relates to a preparation method and a preparation device for analysis samples of laterite-type cobalt and nickel ore. Background technique [0002] When determining cobalt and nickel elements in laterite-type cobalt and nickel ore, the ore samples of laterite-type cobalt and nickel ore should be ground finely, and then analyzed by analytical instruments. Among them, the preparation method of laterite-type cobalt and nickel ore analysis samples is very critical. At present, most laboratories in China usually make laterite-type cobalt and nickel ore samples directly by grinding or throwing away the mineral gravel and then grind them. Since laterite-type cobalt and nickel ore samples are characterized by containing A certain proportion of gravel, and the pores of the gravel are rich in a certain amount of cobalt and nickel elements. If the gravel is thro...

AI Technical Summary

Problems solved by technology

At present, most laboratories in China usually make laterite-type cobalt and nickel ore samples directly by grinding or throwing away the mineral gravel and then grind them. Since laterite-type cobalt and nickel ore samples are characterized by containing A certain proportion of gravel, and the pores of the gravel are rich in a certain amount of cobalt and nickel elements. If the gravel is thrown away or crushed and ground for analysis, the analysis result will be low, resulting in a 10% lower grade of lateritic cobalt and nickel ore Left and right, it brings unreliable analysis results to geological prospecting and evaluation of the grade of ore deposits, which directly affects the investment and decision-making of ore deposits. Therefore, the analysis sample preparation method of laterite-type cobalt and nickel ore is very important. people's attention and attention

Images