A method for separating iridium and platinum with polystyrene-4-methylthiazole sulfoxide resin

A technology of methylthiazole sulfoxide and polystyrene, which is applied in the field of separating iridium and platinum with polystyrene-4-methylthiazole sulfoxide resin, which can solve the problems of poor selectivity, great environmental hazards, and no industrial-scale application, etc. problems, to achieve the effects of industrial scale-up, low equipment corrosion, and high separation coefficient
CN106086450BInactive Publication Date: 2018-02-02YUNNAN UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
YUNNAN UNIV
Publication Date
2018-02-02
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a method for separating iridium and platinum through polystyrene-4-methylthiazole sulfoxide resin, and belongs to the technical field of platinum group metal separation. The method comprises the steps that the polystyrene-4-methylthiazole sulfoxide resin (PS-4-MTS for short) is used as an adsorbent, Ir(IV) in a 0.1-0.5 mol / L hydrochloric acid medium is adsorbed according to the solid-liquid ratio of 1:50(g / mL), the PS-4-MTS adsorbs Ir in an Ir and Pt mixed solution, Pt is reserved in a water phase, and Ir on the resin is desorbed through an 0.5%-1% NaOH solution. Ir and Pt are separated through the adsorbability difference of the PS-4-MTS adsorbent for Ir and Pt, the operation process is simple and environmentally friendly, the Ir and Pt separation coefficient is high, and the PS-4-MTS adsorbent is good in stability and capable of being reused.
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Description

technical field

[0001] The invention relates to a method for separating iridium and platinum with polystyrene-4-methylthiazole sulfoxide resin (PS-4-MTS for short), in particular to an efficient iridium and platinum adsorption method with high selectivity and large adsorption capacity. new method of separation. It belongs to the field of precious metal metallurgy. Background technique

[0002] Iridium and platinum are extremely stable elements among the platinum group metals, and their chemical properties will not change significantly due to oxidation even in a high-temperature environment. It is precisely because of this excellent performance that iridium and platinum are often made into platinum-iridium alloys, which are widely used in aviation, aerospace, electronic communications and other industries. Due to the scarcity of iridium and platinum resources, their prices are relatively expensive. Therefore, the recovery of iridium and platinum from secondary resources has...

Claims

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