Parameter |
Suggested Method of Analysis |
Description of Method |
Suggested Frequency |
Use of data |
Reactivity and Dissolution Rate |
EPRI Method B7 |
pH static test on a given size distribution (grind) |
Start and finish of each performance test run. |
Compare to reference to determine acceptability of a given limestone |
Grindability (Bond Work Index) |
EPRI Method B5 |
Laboratory Ball Mill Test |
Start and finish of each performance test run. |
Specificiations for wet milling design |
Carbonate |
EPRI Method N1 |
CO2 evolution, Ba(OH)2 absorption, Acid-base titration |
Start and finish of each performance test run. |
Measuere alkali loss in filter cake of mag-lime process; important for mag-lime or sodium systems. |
Alkalinity |
EPRI Method N3 |
Titrimetric |
Start and finish of each performance test run. |
Measuere alkali loss in filter cake of mag-lime process; important for mag-lime or sodium systems. |
Calcium and Magnesium |
EPRI Method J1 |
EDTA Titration |
Start and finish of each performance test run. |
Check for reagent quality |
Inerts |
EPRI Method J1 |
Acid Dissolution |
Start and finish of each performance test run. |
Quality indicator. Important for gypsum systems. |
Limestone slurry solids content |
EPRI Method F1 |
Gravimetric |
Start and finish of each performance test run. |
Check density meter and indicate problems in milling circuit |
Lime slurry particle size distribution |
EPRI Method G1 |
Wet Sieve |
Start and finish of each performance test run. |
Troubleshooting problems in milling circuit or process such as low utilization or poor gypsum quality |