研究了用酸浸与钠碱熔融法从钨渣中富集和回收钽铌。

The enrichment and recovery of tantalum and niobium through acid leaching and sodium alkali fusing from tungsten residue is studied.

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以红土镍矿为原料，采用碱熔融-碳酸化分解方法制备出白炭黑产品。

Silica white was prepared from laterite nickel ore by the method of molten NaOH-carbonization decomposition.

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本文中，以粉煤灰为原料，采用碱熔融-水热合成法制备a型沸石，并将其用于制革废水批处理振荡试验。

By using coal fly ash as main material, the alkali fusion-hydrothermal synthesis method was adopted to prepare zeolite-A and apply it to tannery wastewater treatment in this paper.

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