Irreversible reaction

Anodic oxidation of manganate to permanganate (overall cell reaction)

2K2MnO4+2H2O2KMnO4+2KOH+H2

Direction
Irreversible
Processes
1
Stated as
Fixed conversion
Heat of reaction
ΔH = 334,880 kJ/kmol (one process)
Element balance
Checked: balances
As the processes state itStoichiometry, conversions, heats of reaction and catalyst windows are taken from each process's files with their provenance. The build checks only that each process's equation balances in every element, from the process's own component formulas; it does not check the numbers. A process's design maturity applies to them.

Species

SpeciesNameCASRoleCoefficient
K2MnO4Potassium manganate10294-64-1reactant-2
H2OWater7732-18-5reactant-2
KMnO4Potassium permanganate7722-64-7product2
KOHPotassium hydroxide1310-58-3product2
H2Hydrogen1333-74-0product1

In the processes

  • Potassium permanganate from MnO2 ore by KOH roasting and electrolysis (1250 kg/h, concept)Concept · not reviewed

    ELEC · Anodic oxidation of manganate to permanganate (overall cell reaction)2 K2MnO4 + 2 H2O → 2 KMnO4 + 2 KOH + H2

    Stated as
    Fixed conversion
    Phase
    liquid
    Element balance
    Balances in every element
    Conversion
    90 % of K2MnO4 (assumed: D-006: conversion per pass through the cell train, ASSUMED)
    Heat of reaction
    ΔH = 334,880 kJ/kmol at 298.15 K, as written (assumed: formation enthalpies (aq, infinite dilution) K+ -252.38, MnO4- -541.4, MnO4-2 -653, OH- -229.99, H2O(l) -285.83 kJ/mol (NBS tables, D-009))

Sources

What the processes cite for this reaction, each source once: for the reaction itself, its conversion, its heat of reaction or its catalyst. As the processes write them; DOIs, US patent numbers and web addresses are linked.

  1. D-006: conversion per pass through the cell train, ASSUMED

    For the conversion · cited by Potassium permanganate from MnO2 ore by KOH roasting and electrolysis (1250 kg/h, concept)

  2. formation enthalpies (aq, infinite dilution) K+ -252.38, MnO4- -541.4, MnO4-2 -653, OH- -229.99, H2O(l) -285.83 kJ/mol (NBS tables, D-009)

    For the heat of reaction · cited by Potassium permanganate from MnO2 ore by KOH roasting and electrolysis (1250 kg/h, concept)