The research of the sodium thiphite production problems by the ways of complex reusing has adjusted the processing controlling indexes,improved the condensing equipments that make use of the discharged wasted hydrogen from chlor-alkali system,and lowered the producing cost.
通过对综合回收大苏打生产问题的研究,调整了生产的工艺控制参数,并改进浓缩装置,综合利用氯碱的排空废氢气,降低了生产成本,使生产大苏打工艺得到提高,技术得到改进。
This paper presents a process for preparing high purity tungsten trioxide in which Shizhuyuan high molybdenum scheelite concentrates are treated by molybdenum removal and NaHS extraction of tertiary amine, evaporation and crystallization using the autoclave-soda process.
介绍了采用苏打压煮、NaHS除钼、叔胺萃取、蒸发结晶处理柿竹园高钼白钨精矿 ,生产高纯三氧化钨的工艺。