A new cleaner technology for making chromium trioxide and potassium nitrate simultaneously by using nitric acid to decompose potassium dichromate has been brought forward.

• 提出了硝酸分解重铬酸钾法联产铬酸酐与硝酸钾的清洁工艺,并优选出过程中主要环节的合理操作条件。