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Cheap 120 Grit Aluminum Oxide Suppliers Russia

However, in this way, the circulation efficiency will inevitably decrease and the material flow will increase(brown aluminium oxide manufacturer). When other conditions are the same, the higher the concentration of mother liquor alkali, the greater the degree of unsaturation of Al2O3, the faster the dissolution rate of Al2O3 in bauxite, and the solution with low molecular ratio can be obtained(aluminium oxide grit 24 mesh). 


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Therefore, from the Perspective of the whole process, the alkali concentration of the mother liquor should only be kept at an appropriate value(brown fused alumina). Due to various impurities in the sodium aluminate solution in production, its equilibrium molecular ratio is different from the value shown in the isotherm of na2o-al2o3-h2o system, the dilution phenomenon is eliminated(white fused aluminum oxide 60 grit), which needs to be determined by experiments.


The saturated steam pressure of high concentration solution is lower, so is the pressure of equipment(brown aluminum oxide). However, from the perspective of the whole process, the Na2O concentration of the seeded sodium aluminate solution, i.e. the evaporation stock solution, should not exceed 240g / L(brown fused alumina for grinding). if the alkali concentration of the mother liquor is required to be too high, the burden and difficulty of the evaporation process will inevitably increase.


In a digester heated directly by steam, the steam condensate dilutes the original pulp(brown aluminium oxide). The concentration of Na2O in the mother liquor with the concentration of 280-300g / 1. Is only 230-250g / L due to the dilution of steam and the conversion of part of Na2O into sodium carbonate and sodium aluminosilicate(brown aluminum oxide blast media). In the indirect heating equipment, and the alkali concentration of the mother liquor can be reduced to 220g / L.


If higher dissolution temperature is used, the concentration of Na2O can be further reduced(garnet abrasive). In the dissolution of bauxite, the ratio of materials is determined according to the expected MR of the solution. The expected dissolution MR is called batching Mr. The higher the value is, the higher the amount of alkali is(white aluminum oxide 120 grit). Because the solution always keeps a larger unsaturation in the dissolution process, the dissolution rate must be faster.


When the dissolution temperature is 220 ℃(garnet suppliers), the influence of alkali concentration on the dissolution rate of Australia's Weipa mine can be seen from the figure that increasing alkali concentration has a certain influence on the dissolution rate of Al2O3. The dissolution solution with low molecular ratio is also conducive to the seed separation process(brown fused alumina grit). With the increase of dissolution temperature, the difference can be reduced.  


It can be seen from the figure that when the molecular ratio of ingredients is reduced from 1.8 to 1.2, the solution flow can be reduced to 50% of the original(glass bead blasting media suppliers). It can be seen from the formula n = 0.608 × (MR) e × (mr2e (T / TLQ,) that in order to reduce the circulating alkali content(black silicon carbide suppliers), the effect of reducing the molecular weight of ingredients is more significant than that of increasing the molecular ratio of mother liquor.


Therefore, on the premise that the dissolution rate of Al2O3 can not be excessively reduced(steel grid), it is an important requirement for the dissolution process to prepare the dissolution solution with the lowest separation ratio. In order to ensure that Al2O3 in ore has higher dissolution rate and dissolution rate(black silicon carbide factory), the molecular ratio of proportioning is 0.15-0.20 higher than that of equilibrium solution under the same conditions.


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