Innocent treatment system for solid waste triphenylphosphine oxide in electronic industry

Abstract

The invention provides a harmless treatment system for solid waste triphenylphosphine oxide in the electronic industry. The harmless treatment system for the solid waste triphenylphosphine oxide in the electronic industry comprises the following steps: S1, dissolving the solid waste triphenylphosphine oxide and 5 times of chloroform; s2, passing through a special metal chelating resin adsorption column; s3, carrying out MVR concentration evaporation on the adsorption chromatography liquid; and S4, dissolving concentrate with ethanol, recrystallizing and refining. According to the harmless treatment system for the solid waste triphenylphosphine oxide in the electronic industry, reverse adsorption is adopted for feeding from bottom to top, a solution gradually passes through resin, the resin has sufficient time to act on the solution to achieve the purpose of sufficient adsorption, due to the fact that the specific gravity of the resin is light, metal ions in the triphenylphosphine oxide are removed through reverse multi-pole adsorption, and the harmless treatment effect of the triphenylphosphine oxide is achieved. The triphenylphosphine oxide can be regenerated and recycled, so that the production cost is reduced, the environmental protection pressure caused by treatment of industrial solid wastes can be greatly reduced, and various metal ions in the electronic cleaning agent triphenylphosphine oxide can be removed at one time.

Description

technical field [0001] The invention relates to the technical field of the electronic industry, in particular to a harmless treatment system for solid waste triphenylphosphine oxide in the electronic industry. Background technique [0002] Platinum, rhodium, and gold precious metals generally contain less than 3 parts per million in natural mineral deposits. People ionize the precious metals in the ore, and use special metal chelating resins to capture, enrich, desorb and purify. This is hydrometallurgy. . [0003] In the solid waste treatment of the electronics industry, the use of hydrometallurgy is expanded by using metal chelating resins to capture metal ions in triphenylphosphine oxide. [0004] In the prior art, the specific gravity of the chelating resin is about 0.8, while the specific gravity of the solvent system is above 1.6. Due to the effect of gravity, the resin floats instantly when it contacts the solution, and the adsorption process cannot be completed. ...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a harmless treatment system for solid waste triphenylphosphine oxide in the electronic industry, which solves the problem that the cleaning agent using triphenylphosphine oxide is inconvenient for post-processing and easily pollutes the environment

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