Technical discussion: Waste acid treatment, mixed acids
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This post was last edited by hesonchang214 on 2012-7-25 09:43. We produce a chemical product, and for the nitration reaction, we use a large amount of a mixture of sulfuric acid and nitric acid. After the reaction, the mixture is allowed to settle and separate into layers, after which the mixed acid is separated out. Besides being neutralized with alkalis to form salts, this mixed acid has other uses or treatment methods as well; let’s discuss this together. I think many nitration reactions encounter the same or similar problems!
Just sulfuric acid and nitric acid? A mixed acid consisting solely of sulfuric acid and nitric acid, or an aqueous solution of such a mixed acid, should be useful. 1. Used for pickling. 2. It reacts with ammonia to produce sulfuric acid and an*ao acid; after crystallization and separation, the ammonium salt is obtained as the final product, or it can be used as a raw material for compound fertilizers. If it contains other pollutants, it becomes very difficult to handle.
Generally, after carrying out mixed-acid nitration, if one wants to maximize the utility of this mixed acid, it is first necessary to ensure an appropriate level of organic content in it; therefore, refining the mixed acid should be the priority. Resin adsorption can be considered as a method for this purpose. Our company has relevant project experience in this area; you can contact us at 15951777817
The poster should specify the amount of acid, its concentration, as well as the presence and concentration of impurities. It’s also necessary to state the desired standard for treatment. There are always more solutions than problems; only by providing clear details can others offer suggestions.
Nitration waste acid can be recycled, and it has been in use for decades. The design can be tailored based on the specific concentration and composition; contact Ma Gong at 13685200168.
Continuous fully automatic recovery of organic substances from waste acid; almost no operating costs are required. Contact me if needed
***In production, the waste acid generated by the nitration reaction can be sold.
In nitration production, part of the waste acid generated by the nitration reaction can be recycled, while the excess waste acid can have its concentration increased through vacuum distillation before being reused in nitration processes.
I’m struggling with how to capture and treat the acidic off-gases produced by vacuum distillation; I seek guidance.
Waste acid can be treated, mainly through methods such as sulfuric acid concentration and nitric acid recovery. Could you please provide your contact information so we can discuss this in detail?
This post was last edited by qxx*aoao on 2018-10-29 09:10. We have been developing software packages for the concentration of waste acid for over 10 years now. I have my own experimental data and design experience, and I am available for collaboration. Those interested can send a message in the station!