3.1 Getting the most from Reactants Flashcards
What two factors are kept in mind when designing an industrial process
Maximise profit and minimise environmental impact
Why is the chemical industry important to the UK
It is very profitable and it employs many people
Name 3 examples of products manufactured by the chemical industry
Medicine, Makeup, Paint and Explosives
What is a raw material
A useful substance for the chemistry industry which is found naturally
Give an example of a raw material
Water, Crude oil
What is feedstock
A substance from which other chemicals can be extracted or synthesised
What are feedstocks obtained from
Raw materials
Give an example of a feedstock
Nitrogen from ammonia
What are the 3 main environmental considerations of the chemical issues
How waste can be minimised, how to avoid making toxic substances and how to design biodegradable products
Name factors affecting the chemical process design
Opportunities for recycling, energy requirements, use of by-products, yield of product, availability and cost of feedstock
How can recycling gain profit
Unreacted starting materials can be fed back into the chemical reactor
Why may recycling also lose profit
It is very different to separate unreacted starting materials at the end of the reaction
How can the use of by-products gain profit
The products can be used elsewhere
Why might using by-products lose profit
The by-products could be toxic, very corrosive or environmentally damaging
Why is a high yield of product profitable
It can be sold
