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Definição alemão árabe catalão checo chinês coreano dinamarquês eslovaco espanhol farsi francês grego hebraico hindi húngaro inglês italiano japonês neerlandês polonês português romeno russo sueco tailandês turco ucraniano vietnamita

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reverse floatation

Tradução de "reverse floatation" em chinês

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反浮选

正反浮选

As the rock has a fairly high content of carbonate, a single reverse floatation test is conducted.

由于该矿含碳酸盐矿物的量较高，因此，采用单一反浮选进行了试验。

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。

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。

As in the above researches it is quite hard to raise concentrate grade, heating is applied to carry out heated the heated floatation, effect of the carbonate mineral inhibitor NO-2 upon floatation is studied; a test of reverse floatation is done with addition of H2SO4 or H3PO4 to floated concentrate.

由于在上述研究中，精矿品位较难提高，因此，进行加温浮选，在此次加温浮选中研究了碳酸盐矿物抑制剂NO-2的用量对浮选的影响；在浮选精矿添加了硫酸或磷酸进行反浮选探索研究。

In reverse floatation, when H3PO4 dosage is the same, the ore dressing efficiency is the highest when H2SO4 dosage is 15.0 kg/t. When H3PO4 dosage is small, concentrate grade is relatively low. In the above test, no grade reaches above 30%.

反浮选中，在磷酸用量相同时，硫酸在15.0kg/t 选矿效率最高，磷酸用量较低时不利于精矿品位的提高，上述试验中精矿的品位都未提高到30%以上。

In single reverse floatation the concentrate grade is 23.88% at most. Therefore single reverse floatation is not desirable for concentration of calcareous rock.

采用单一反浮选该精矿的品位最高也只有23.88%，因此单一反浮选不适用钙磷矿的选矿。

Direct and reverse floatation is a proper process of floatation for the rock. However in reverse floatation only H3PO4 may be added as a regulator and inhibitor, not H2SO4.

正反浮选是该矿石适宜的选矿工艺，在反浮选只能添加磷酸作为调整剂和抑制剂，不能添加硫酸。

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。

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。