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For salt-acid waste liquid at a rate of 10 T/D, with a concentration of 10% and an iron content of 100 g/L, what size of MVR vacuum evaporation unit is required?

2016-06-16View Original

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For salt-acid waste liquid at a rate of 10 T/D, with a concentration of 10% and an iron content of 100 g/L, what size of negative pressure evaporation equipment is required?
Reply #22016-06-16
Is it feasible to add more iron to create a saturated solution of ferric chloride as a water treatment agent?
Reply #32016-06-16
The required level of negative pressure depends mainly on the increase in the boiling point of your material. You need to conduct experiments first to determine that increase in boiling point, before you can decide on the exact level of negative pressure needed.
Reply #42016-06-16
The required level of negative pressure depends mainly on the increase in the boiling point of your material. You need to conduct experiments first to determine that increase in boiling point, before you can decide on the exact level of negative pressure needed.
Reply #52016-06-21
OP, could you share your process flow? Thank you! :)838016722@qq.com
Reply #62016-06-23
This post was last edited by Wang Genrong on 2016-6-23 at 14:17. The treatment of acid waste generated during steel pickling is quite troublesome. Ferrous chloride can be evaporated, concentrated, and separated, but it is difficult to achieve an HCl concentration of over 20%.
Reply #72016-08-01
We have done a lot of work in this area; we can discuss it later. Engineer Liu: 15771721358, QQ: 597862313
Reply #82016-08-02
MVR is not suitable; a multi-effect system is required. Additionally, the boiling points of hydrochloric acid and water vary depending on the pressure. We have previously worked with acid-water mixtures used in saccharin production, where the hydrochloric acid concentration was 15 wt%, and evaporation was used to recover the dilute hydrochloric acid; this processing method is quite complex. If cooperation is desired, please get in touch again

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