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Chemical reagents used in digestors of Kraft process are ____________(a) Mg(HSO3)2 + SO2(b) Na2 CO3, Na2SO3, NaHCO3(c) NaHSO3, Na2SO3(d) NaOH, Na2S, Na2CO3In aqueous solutionI have been asked this question in an online interview.The above asked question is from Natural Products in division Natural Products of Chemical Technology

Answer»

Right choice is (d) NaOH, Na2S, Na2CO3In aqueous solution

Explanation: 60%NaOH, 25% NA2 S, 15% Na2CO3 in 10-15%aqueous solution is the CHEMICAL reagent used in digestors of sulfate pulp process Mg(HSO3)2 + SO2, Na2CO3 + Na2S + NaHCO3, NaHSO3 + Na2 SO3 are the chemical reagents used in different TYPES of sulfite processes.



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