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Request for mixed acid preparation (sulfuric acid, nitric acid)

2019-02-22View Original

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Request for the process flow for preparing mixed acid (nitric acid, sulfuric acid). Process flow diagram: Raw materials – 98% nitric acid, 92.5% sulfuric acid; nitration waste acid containing 69% sulfuric acid. Requirements: The mixed acid should consist of 46% sulfuric acid, 46% nitric acid, and 8% water
Reply #22019-02-23
What’s your quote? Only knowing the price can they decide whether it’s worth designing or not
Reply #32019-02-23
This is our homework, hahaha
Reply #42019-02-24
Please help, I really don’t know how
Reply #52019-02-25
This post was last edited by Qingcheng Jun on 2019-2-25 at 09:46. The homework is simple; it serves to assess your understanding of this topic, as well as your knowledge of chemical engineering and your ability to apply that knowledge. The quality of your work reflects your level to some extent; there’s no need for it to have practical applications. The proper way to approach this is to conduct an experiment in the laboratory, calculate the correct proportions, add water to the beaker first, stir it, then add sulfuric acid and nitric acid. Or swap the order of nitric acid and sulfuric acid. Observe the process phenomena, such as exothermic boiling or the evaporation of nitrogen oxides, identify any safety or environmental hazards, and determine how to avoid or address them. A device design can be proposed only after there is experimental evidence to support it. If you don’t want to do experiments, you can just make things up based on your own imagination; if you try to deceive knowledge, knowledge will also deceive you
Reply #62019-07-07
First, calculate how much water to add, then prepare the sulfuric acid, and finally add the nitric acid.

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