Aluminium bars of technical purity.

达到技术纯度要求的铝锭。

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The effect of low-purity PX on the process parameters and technical index of residue oxidation system of PTA plant was described.

阐述了使用低纯度对二甲苯（PX）对PTA装置氧化残渣系统工艺参数、技术指标的影响。

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Then a good performance with concentrate yield of 5.46%, purity of 97.11%, and Andalusite recovery of 65.95% is obtained, providing a feasible technical scheme for exploration of mine.

采用该流程，取得了精矿总产率为5.46%，总纯度为97.11%，红柱石总回收率为65.95%的试验指标，为该矿的开发利用提供了可行性技术方案。

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