Novel high effective noble metal adsorbent and its preparing method

An adsorbent and precious metal technology, applied in the field of novel high-efficiency precious metal adsorbent and its preparation, can solve the problems of low product yield, many synthesis steps, complicated preparation and the like
CN1683072AInactive Publication Date: 2005-10-19SUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SUZHOU UNIV
Publication Date
2005-10-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to the design and synthesis method of adsorbing resin, and by means of special polymerization method, small crosslinked polystyrene ball is made to possess proper geometric features and maximized function. By means of proper design, the synthesis steps are reduced, and functional radical contains special reactive functional groups capable of adsorbing noble metal. One functional molecule contains four adsorbing groups. The obtained adsorbent has excellent noble metal adsorbing performance and selectivity under different pH conditions, and may be used in the adsorption and recovery of noble metal in different fields.
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Description

technical field

[0001] The invention relates to the design and synthesis method of an adsorption resin, in particular to a novel high-efficiency precious metal adsorbent and a preparation method thereof. Background technique

[0002] Among the polymer chelating agents, the most researched in the past is the dicarboxylic acid type (EDTA type) resin, which has achieved practical applications in the separation and enrichment of alkaline earth metals and the first series of transition metals. However, there are few studies on the adsorption resins used to adsorb precious metals. There are two main categories reported in the literature: 1. Adsorption resins with polymers as the carrier and functional groups on the side groups. Such as Reactive & Functional Polymers 1996 (31): 117-136, K-D.TOPP, M.Grote et al. reported resins containing resonant diamine structures, J.Appl.Polym.Sci, 2001 (82): 3127-3132, LaiHua Ni, ChangHaiYi etc. proposed thiourea resin and Hubei Chemical Indust...

Claims

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