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REDUCTION OF NITRATE ION CONCENTRATION BY FORMALDEHYDE TREATMENT IN THE RECOVERY OF OXIDATION CATALYST METALS
REDUCTION OF NITRATE ION CONCENTRATION BY FORMALDEHYDE TREATMENT IN THE RECOVERY OF OXIDATION CATALYST METALS
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机译:氧化催化剂回收中甲醛处理降低硝酸根离子浓度的研究。
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摘要
An aqueous nitric acid solution such as is derived from an adipic acid process and containing catalyst metal ions is reacted with formaldehyde to remove a substantial portion of the nitrate ions present prior to passing the aqueous nitric acid solution through an ion exchange zone wherein the metals are removed.
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