Method for inhibiting extractant degradation by diluent and extractant input method

A method for inhibiting extractant degradation by a diluent and an extractant input manner in a DSX process, the method comprising steps of:

• (a) adding to a first DSX solvent, composed of a first amount of an oxime-based extractant, a first amount of an neodecanoic acid-based extractant, and a first amount of a diluent in the DSX process, a second DSX solvent, composed of a second amount of the oxime-based extractant, a second amount of the neodecanoic acid-based extractant, and a second amount of the diluent, to form a third DSX solvent, and then determining an oxime-based extractant concentration in the third DSX solvent;
• (b) adding a third amount of the oxime-based extractant to the third DSX solvent to form a fourth DSX solvent having a target oxime-based extractant concentration;
• (c) checking a ratio of a total volume of the oxime-based extractant and a total volume of the neodecanoic acid-based extractant in the fourth DSX solvent after step (b);
• (d) mixing a third amount of the neodecanoic acid-based extractant and a third amount of the diluent;
• and
• (e) adding the third amount of the neodecanoic acid-based extractant and the third amount of the diluent to the fourth DSX solvent to form a fifth DSX solvent having
• a target ratio of a total volume of the oxime-based extractant and a total volume of the neodecanoic acid-based extractant,
• a target ratio a total volume of the neodecanoic acid-based extractant and a total volume of the diluent.