Hi, I'm currently doing an undergraduate study and is currently working on an assignment.
The below is copied directly from my assignment brief.
"The aim of this project is to design an efficient process for the synthesis, isolation and
purification of Aspirin. You may assume that you are a member of a design team
employed in a design company. The work of your team will be assessed to prepare a feasibility study and a detailed design report for aspirin production, specifically to design and optimise a process, which can then be put
into full scale production by the company by 2013."
The details after were quite vague so I began to list things I may have to take note of, please help me by adding in your own ideas or correcting me on any incorrect information.
I've only looked into what I've listed so far (so ideas are here but most of the information I have isn't here)
We're only in the concept phase so ideas would be great. Specifications are welcome too anyway and will help us later on.
-Result/expected product. purity and yield.
-Will/Should we consider Recrystallization for purity?
-Reactants required to produce.
The most basic is Salicylic acid and Acetic Anhydride, taking into account that using Acetic acid will produce water (promoting reverse reaction)
Catalyst, Sulphuric acid chosen over Phosphoric acid. My friend said that Sulphuric acid can be more concentrated/pure, meaning less water in solution.
-How can unused material be recycled?
-Some Reactions are performed at 90'C, What kind of fuel will the heat source come from?
Our teacher advised that Fossil fuels(Coal).
-Speed of processing. How long will it take for each cycle? How much would it yield?
MACHINARY AND STRUCTURES(Not sure what to title this):
-What material should the structures be made of?
They should be able to contain all materials used (noting some are strong acids)
We're to include a process flow diagram but it's a work in progress because we're adding things in bit by bit.
But mostly in contains:
*Containers of used reactants
*Where reactions are being performed.
*Mixers and Seperators(Filters)
*How/Where components are monitored
This is all I have so far.
Like I said before, we're only in the concept phase so ideas would be great. Specifications are welcome too anyway and will help us later on.
Sorry if this is vague/unorganised.