Aijingshan lapis lazuli mine: The mine is located in Lishui County , Jiangsu Province. The deposit is located in the late volcanic rocks and belongs to the medium-low temperature hydrothermal filling deposit . Useful mineral celestite, associated minerals are kaolinite, quartz, feldspar and brown iron ore. The lapis lazuli is semi-self-shaped and flaky, and the aggregate can reach 100mm coarse ingots, and some of them are fine-grained. The multi-element analysis of raw ore is shown in Table 3.
A fertilizer or fertiliser is any material of natural or synthetic origin (other than liming materials) that is applied to soils or to plant tissues (usually leaves) to supply one or more plant nutrients essential to the growth of plants.
Fertilizers enhance the growth of plants. This goal is met in two ways, the traditional one being additives that provide nutrients. The second mode by which some fertilizers act is to enhance the effectiveness of the soil by modifying its water retention and aeration. This article, like many on fertilizers, emphasises the nutritional aspect. Fertilizers typically provide, in varying proportions.
Fertilizers are classified in several ways. They are classified according to whether they provide a single nutrient (e.g., K, P, or N), in which case they are classified as "straight fertilizers." "Multinutrient fertilizers" (or "complex fertilizers") provide two or more nutrients, for example N and P. Fertilizers are also sometimes classified as inorganic (the topic of most of this article) versus organic. Inorganic fertilizers exclude carbon-containing materials except ureas. Organic fertilizers are usually (recycled) plant- or animal-derived matter. Inorganic are sometimes called synthetic fertilizers since various chemical treatments are required for their manufacture.
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At present, it is open-pit mining and is only sold after simple processing such as screening and hand selection. The principle flow of the laboratory beneficiation test is shown in Figure 1 (omitted). After the crushed ore is less than 12mm, the coarse fraction of more than 1mm is graded for jigging; the fraction of fine fraction of less than 1mm is sorted by shaker, and the comprehensive index is: concentrate yield 45.38%. The concentrate grade (SrSO4) was 86.12%, and the recovery rate was 83.31%. After the jigging and shaker sorting, the middle mines can be floated and then floated to obtain higher indexes. During the flotation process, it is necessary to disperse the slime and inhibit the limonite. After the slurry is adjusted with Na2CO3 and Na2SiO3, the pH is preferably controlled between 8 and 9.5. When oleic acid is used as the collector , the temperature of the slurry is higher than 25 °C. In addition, the structure of the flotation process has a greater impact on the quality of the concentrate. When the flotation feed was taken as 100%, the yield of the flotation concentrate was 44.50%, the grade (SrSO4) was 86.04%, and the recovery rate was 95.68%. ingredient SrO SrSO4 Al2O3 SiO2 Fe2O3 BaO CaO content,% 6.85 47.59 7.85 29.73 6.78 1.78 0.3
Aijingshan lapis lazuli ore dressing process