Irreversible reaction
Lime in aluminate liquor to tricalcium aluminate
3CaH2O2+2NaAlO2+4H2OgivesCa3Al2(OH)12+2NaOH
- Direction
- Irreversible
- Processes
- 1
- Stated as
- Fixed conversion
- 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
| Species | Name | CAS | Role | Coefficient |
|---|---|---|---|---|
| CaH2O2 | Calcium hydroxide | 1305-62-0 | reactant | -3 |
| NaAlO2 | Sodium aluminate (dissolved; NaAl(OH)4 less 2 H2O) | 1302-42-7 | reactant | -2 |
| H2O | Water | 7732-18-5 | reactant | -4 |
| Ca3Al2(OH)12 | Tricalcium aluminate hexahydrate | 12042-78-3 | product | 1 |
| NaOH | Sodium hydroxide | 1310-73-2 | product | 2 |
In the processes
TCA· Lime in aluminate liquor to tricalcium aluminate3 Ca(OH)2(s) + 2 NaAlO2(aq) + 4 H2O(l) → Ca3Al2(OH)12(s) + 2 NaOH(aq)- Stated as
- Fixed conversion
- Phase
- mixed
- Element balance
- Balances in every element
- Conversion
- 100 % of
CaOH2(assumed: D-004: all lime leaves with the residue as TCA (hydrogarnet); a simplification of the lime chemistry (causticisation, phosphate and titania control are not carried))
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.
D-004: all lime leaves with the residue as TCA (hydrogarnet); a simplification of the lime chemistry (causticisation, phosphate and titania control are not carried)
For the conversion · cited by Alumina by the Bayer process (3000 t/d smelter-grade alumina, concept)