Compared with ordinary DEHPA, IONQUEST ® 220 provides similar performance and can be easily switched to replace the DEHPA products currently used in various factories.

On the other hand, compared with other competitors' alkyl phosphonic acid extractants (BTMPPA), IONQUEST ® 290 shows an obvious improvement in selectivity and overall performance, which is mainly reflected in:

1. Under identical process conditions, compared with other competitors' alkyl phosphonic acid extractants (BTMPPA), IONQUEST ® 290 is used for both sulfuric acid leaching and hydrochloric acid leaching processes, both extraction load and Co selectivity can be increased by more than 10%.

2. Under extreme conditions, it always shows better phase separation and lower risk of precipitation.

3. It is easier to use as pre neutralization extractant.