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PROCESS AND APPARATUS FOR REMOVING ALKALI NITRITE FROM SALT BATHS CONTAINING NITRATE
PROCESS AND APPARATUS FOR REMOVING ALKALI NITRITE FROM SALT BATHS CONTAINING NITRATE
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机译:从含硝酸盐的咸水中去除碱式亚硝酸盐的方法和装置
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摘要
Undesired nitrites are formed during the treatment of salt bath nitrided structural components of iron and steel in nitrate containing cooling baths, and they must be removed from the washing water. The build-up of nitrites can be avoided by oxidizing the nitrite in the salt bath into nitrate by passing air into the cooling bath during off-times.
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