Mineral separation is an important means of process mineralogy research. With the continuous development of testing technology, single mineral separation has been gradually replaced, but it can not be completely replaced. The strontium mineral separation technology was developed on the basis of heavy sand mineral analysis. Artificial heavy sand is mainly for enrichment of heavy minerals. According to the mineral combination characteristics of artificial heavy sand, indicator minerals related to certain minerals can be found to guide the prospecting work. The separation of niobium minerals is to purify the minerals of interest (including light minerals and heavy minerals). By purifying a single mineral, it facilitates the determination of ore material composition, the occurrence of elements, the determination of mineral physical properties and chemical composition, the study of mineral floatability, and the study of mineral surface properties. Separation of niobium minerals is based on differences in physical properties (density, magnetic properties, electrical properties), surface properties, and chemical properties of minerals. The ore of nature is complex and multi-component and is produced in the form of multi-mineral aggregates. Due to the complex relationship of the inlays, the separation is more difficult. Mineral extraction unit from the plurality of complex
metal ore is a complex and painstaking work, the separation process comprises three stages, i.e. specimen examination, sorting and crushing and screening. Sample preparation such as crushing, sieving, and sedimentation of ore is required before mineral separation, and then different separation methods are selected according to the physical and chemical properties of the target mineral and other minerals.
Leather Care
The fundamental reason why leather is soft is that when leather is made, oil is introduced into the interior of animal skin to form an oil film that completely covers the surface of the fibers inside the skin, that is, a layer of oil film with appropriate thickness is used to separate the surface of the fibers inside the skin. In this way, the friction between the fibers inside the leather is equivalent to the friction of the oil molecules, so the leather will be very soft. Its principle is similar to that of sponge, but the difference is that the inner surface fibers of dermis are separated by oil film, which makes the inner surface of dermis have sliding pores, but its pores are smaller than that of sponge, and the distribution of the inner surface fibers of dermis is not as regular as that of sponge.
Leather cleaner is used to clean leather clothes, leather sofas, leather bags, leather chairs, leather shoes and other leather products. Leather cleaning generally refers to the cleaning of the surface of leather products, excluding the cleaning inside.
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