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direct floatation
Tradução de "direct floatation" em chinês
正浮选
直接浮选
In the above research, the inhibitor NO-2 is organic with strong dispersing capability. Besides, to function fully, the phosphorite middling slurry has to be in a comparatively high temperature, which leads to a higher cost of floatation. Hence in order to study effects of inorganic dispersant sodium hexameta phosphate upon floatation, as its inhibiting capability is quite strong, its dosage should be small. Apart from this, 9.0 kg/t sodium silicate is added into the direct floatation roughing. So no such reagent is added into the roughing but into fineness of direct dosage is 0.2 kg/t. When the dosage increases to 0.3 kg/t, no foam will appear in the fineness. This indicates that the dosage is quite large.
在上述研究中抑制剂NO-2是一种有机抑制剂有较强的分散性且用于磷矿选矿中矿浆的温度较高，才能体现该药剂的性能，导致选矿成本较好，为此，研究了无机分散剂六偏磷酸钠对浮选的影响，由于该药剂的抑制性较强，用量宜小，且在正浮选粗选中添加了9.0kg/t的水玻璃，因此在粗选中没有添加该药剂，而是添加到正浮选的精选中，用量为0.2kg/t，用量增至0.3kg/t时，导致精选不产生泡沫，说明用量较大。
From the above researches it is found that neither direct floatation nor single reverse floatation can achieve a concentrate grade of more than 30%. As the content of carbonate in the rock is fairly high, the combination of floatation and roasting digestion is investigated. Concentrate of direct floatation is roasted under different high temperatures for two to three hours and then cooled down. Then some water is added in to mix with and assimilate the concentrate. After that the concentrate is filtered and its grade analyzed.
通过上述的研究可以看出，直接浮选与单一反浮选都难使精矿品位达到30%以上，由于该矿的碳酸盐含量较高，采用浮选与焙烧消化相结合进行了研究，将直接浮选的精矿置于不同高温下进行焙烧两三个小时，冷却后，加入一定量的水搅拌消化过滤分析其品位。
Based on the above test the grinding finenesses and dosages of direct floatation reagents including sodium carbonate, sodium silicate, and TSK-125 are determined and a test of H3PO4 dosage in reverse floatation is carried out.
通过上述的试验确定了磨矿细度、正浮选药剂碳酸钠、水玻璃、TSK-125的用量进行了反浮选磷酸用量试验。
In heated direct and reverse floatation, concentrate grade still fails to reach 30%. The ore dressing efficiency does not increase much in direct floatation with addition of a carbonate inhibitor NO-2. Hence in subsequent tests no heating is provided nor NO-2. But from the test result we find that addition of H3PO4 in reverse floatation may increase concentrate grades.
通过加温正反浮选，精矿的品位也没有达到30%，正浮选加温同时添加碳酸盐抑制剂NO-2，选矿效率提高的幅度不大，所以以后的试验没有加温也没有添加NO-2。
As the phosphorite contains both carbonate and silicate minerals, neither single direct floatation nor single reverse floatation can obtain a good floatation index.
由于该磷矿既含碳酸盐矿物，也含硅酸矿物，因此单一正浮选或者单一的反浮选较难获得较好的选矿指标。
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