Machine-translated by Google. Questions are authored in English.
Top

Discussion

Clarification of cane juice is usually carried out by

  • A.liming and heating to settle impurities
  • B.filtration through activated carbon alone
  • C.distillation of the whole juice
  • D.adding sulphuric acid into the juice

Answer: A

Correct answer: liming and heating to settle impurities

Milk of lime is added to raise the pH and the juice is heated, which precipitates calcium phosphate and coagulates the colloidal and suspended matter into a floc that settles or is filtered off. It is the simplest step in the factory and among the most important, since impurities carried forward interfere with crystallisation and colour the sugar.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.