What is the advantages of batch reactor?

Batch reactor is apt to operate flexiblely for many kinds of products,it's especially used for products in small quantities,various kinds and long reaction time.

But batch reactor also has disadvantages,it needs auxiliary operation on loading and discharge materials,and it's unstable in product quality.but in some reaction cases, such as fermentation reaction and polymerization,it's difficult in continuous production,

Batch reactor is common used in additives, pharmaceuticals,dyes and other chemical production.