batch or continuous Flashcards
what are the benefits of continuous processing?
make large amounts of the products 24 hours a day
takes less energy to maintain
what is batch processing?
chemicals needed in small quantities, such as medicines
what is continuous?
chemicals needed in large quantities
what are the benefits of batch processing?
makes a fixed amount
allows batches to be made and stored until needed
makes it easy to make a new batch when needed
what are the disadvantages of continuous processing?
process is inefficient if not in constant use
there is a very high initial building and set up cost for these chemical plants
what are the disadvantages of batch processing?
has to be supervised so its labour intensive and labour costly
time is needed for cleaning if the product line is changed
what is a catalyst?
a substance added to a chemical reaction to make it go faster
what is a continuous process?
a process used to make drugs in large amounts. Production takes place night and day throughout the year non-stop
what is batch processing?
a process to make drugs in small amounts, which are only made when needed.
explain what happens after the drug has been made in batch?
drug companies store medicines in warehouses. New batches are then made whenever the stored medicine runs low
what is the most used drug in the world?
aspirin
what are the 3 ways of testing drugs for its purity?
melt at a fixed temp
boil at fixed temp
give the same result when tested using thin layer chromatography
what affects cost of drugs?
labour costs energy costs development costs research and testing raw materials marketing, legal costs
give 3 reasons why medicines are so expensive?
the raw materials may be rare and costly
it can take years of investment costs of research and development
labour intensive
