Solvay process as compared to dual process (i.e. modified Solvay process) ?
Correct answer: B. Both B. and C.
- A. Can use low grade brine
- B. Both B. and C.
- C. Involves higher investment in NH3 recovery units than that for crystallisation units for NH4Cl
- D. Has less corrosion problems
Explanation
Compared with the dual process, the conventional Solvay process has less corrosion because ammonium chloride is not crystallised as the main product, but it requires costly ammonia-recovery equipment. Thus both statements B and C describe the comparison.
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