Patent ID: 11912582
Assignee: DAVY POWERSPORTS INC.
Field: Chemical engineering (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 16:
17. The system of claim 11, further comprising:
a second reactor to combine the first filtrate and a second reagent to change the
pH of the first filtrate, wherein the second reagent is added until the pH of the first filtrate reaches a second predetermined pH value to form a second precipitate, wherein the second precipitate comprises at least one of a metal and a rare earth element;
a second filter to remove the second precipitate from the first filtrate, wherein the remaining liquid is a second filtrate;
a third reactor to combine the second filtrate and a third reagent to change the pH of the second filtrate, wherein the third reagent is added until the pH of the first filtrate reaches a third predetermined pH value to form a third precipitate, wherein the third predetermined pH value is at least one of 4, 9, 11, and 13, wherein the third precipitate comprises at least one of a metal and a rare earth element; and
a third filter to remove the third precipitate from the second filtrate, wherein the remaining liquid is a third filtrate.