This paper deals with a new process for making Oxalic acid from corn starch in detail.

本文详细地研究了以玉米淀粉为原料，经酸性水解，硝酸氧化制造草酸的新方法。

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The paper describes the fundamental principle of acid-making off-gas treatment by ammonia-acid method and its application in Yunnan Copper.

介绍了氨-酸法处理制酸尾气的基本原理以及在云南铜业股份有限公司的运用实践。

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This paper makes an approach to technological process for and solution of problems in utilization of plenty of waste heat generated after adjustment of roasting and acid making cooling system.

探讨了焙烧、制酸冷却系统调整后，产生的大量热能回收利用的工艺、流程及存在问题的解决方案。

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