蒸酸后残液中的镍、铬、铁等有价金属元素含量可提高一倍以上，为其综合利用奠定了基础。
The content of valuable metal, such as Ni, Cr, and fe in residual liquors can be doubled after evaporation treatment. This will be in favor of the effective use.
结果表明，不论在淡水泥浆还是盐水泥浆中，改性腐殖酸的稀释效果都比铁铬木质素磺酸盐要好，是一种比较理想的钻井泥浆稀释剂。
It shows the thinner of modified humic acid to be better than Fe_Cr lignosulphonates. It is a ideal thinner for drilling mud.
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