试验结果表明，用煤炭液化中性油与家庭用过的废油作为添加油，油添加量为20％以上时，煤的最大回收率为99％，脱灰率约达20％。
The lest results have shown that I he highest recovery of coal is 99% and deash efficiency is 20% using neutral oil of liquified fuel and waste cooking oil as agglomeration oil.
试验结果表明，还原剂焦炭用量对金属钴镍收率影响最大，用量过大或过少都不利于钴镍的回收，而对铜的回收率影响不明显；
The experiment results showed that the dosage of coke had the largest effect on the recovery of cobalt and nickel, but no obvious influence on the recovery of copper.
这是一个最大的回收率后我看到到现在。
This is one of the biggest post recoveries I have seen till now.
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