Method of eliminating lead from nickel chloride solution
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- JINCHUAN GROUP LIMITED
- Publication Date
- 2007-03-07
- Estimated Expiration
- Not applicable · inactive patent
Abstract
Description
technical field
[0001] A method for removing lead in a nickel chloride solution relates to a method for removing impurities in a chlorination medium, in particular to a method for removing lead in a nickel chloride solution by using a resin. Background technique
[0002] In the traditional process, chemical precipitation is usually used to remove lead, but this method is only suitable for solutions with high lead content, and there is still a small amount of lead (about 0.2g / l) in the solution after precipitation, which affects the quality of the final product . The existing deep lead removal methods usually use ion exchange resins. The lead removal effect of FPA90 and FPA98 resins in nickel chloride solution is not good, which cannot meet the production needs; the lead removal of D363 and D296 resins can achieve the expected effect, but the capacity Small, the qualified liquid is only twice the volume of the resin; D318 and D331 resins have large capacity and good effect, ...