Production of Ultra Clean Coal - Part II - Ionic equilibria in solution when mineral matter from black coal is treated with aqueous hydrofluoric acid

Fuel Processing Technology

Volumn 70, Issue 3, 2001, Pages 193-219

  Steel, Karen M ^a,b   Besida, John ^a   O'Donnell, Thomas A ^a   Wood, David G ^a  

^a UNIVERSITY OF MELBOURNE   (Australia)

^b UNIVERSITY OF NOTTINGHAM   (United Kingdom)

Author keywords

HF; Ionic equilibria; Ultra Clean Coal

Indexed keywords

ALUMINUM COMPOUNDS; DISSOLUTION; HYDROFLUORIC ACID; MATHEMATICAL MODELS; PHASE EQUILIBRIA; PRECIPITATION (CHEMICAL); SILICON;

ULTRA CLEAN COAL;

COAL;

EID: 0035399890     PISSN: 03783820     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0378-3820(01)00173-4     Document Type: Article

References (9)

1. Production of ultra clean coal: Part I. Dissolution behaviour of mineral matter in black coal toward hydrochloric and hydrofluoric acids
2. Acidization VI: On the equilibrium relationships and stoichiometry of reactions in mud acid
3. Equilibrium distribution of metal-fluoride complexes
4. Sodium fluoroaluminates formed in the reaction between aluminium fluoride solution and crystalline sodium fluoride
5. An investigation of the solubility of some fluorides in 38.5% hydrofluoric acid
6. The composition and stability of some aluminium fluorides in solution
7. The determination of fluoride ion activities in moderately concentrated aqueous hydrogen fluoride
8. An investigation of the composition of the precipitates formed by the decomposition of silicate rocks in 38-40% hydrofluoric acid