Recovery of high purity ferric phosphate from a spent electroless nickel plating bath
文献信息
Peng Liu, Chaolin Li, Xingang Liang, Gang Lu, Jianhui Xu, Xiaoqing Dong, Wenfang Zhang, Fei Ji
In this study, the UV-Fenton process was used to treat a spent electroless nickel plating bath, and to recover high purity ferric phosphate which could be used as a raw material in lithium ferric phosphate batteries. The effects of different parameters such as the H2O2 dosage, the H2O2 and Fe2+ feeding modes and the initial temperature on the treatment efficiency of the process were investigated. The results indicated that the UV-Fenton process could effectively remove the chemical oxidation demand by about 96.1%. Meanwhile, the phosphate produced from the complete oxidation of hypophosphite and phosphite was recovered as a precipitation of ferric phosphate. According to the results, about 99.9% of the phosphorus in the spent electroless nickel plating bath can be recovered. Recovered ferric phosphate particles were high in purity and nanometer-sized. This method utilizes relatively clean and economical reagents in the recovery of phosphorus resources, and does not generate hazardous substances. It will provide a new green method for the spent electroless nickel plating bath treatment.
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Green Chemistry

Green Chemistry provides a unique forum for the publication of innovative research on the development of alternative green and sustainable technologies. The scope of Green Chemistry is based on, but not limited to, the definition proposed by Anastas and Warner (Green Chemistry: Theory and Practice, P T Anastas and J C Warner, Oxford University Press, Oxford, 1998). Green chemistry is the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products. Green Chemistry is at the frontiers of this continuously-evolving interdisciplinary science and publishes research that attempts to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. Submissions on all aspects of research relating to the endeavour are welcome. The journal publishes original and significant cutting-edge research that is likely to be of wide general appeal. To be published, work must present a significant advance in green chemistry. Papers must contain a comparison with existing methods and demonstrate advantages over those methods before publication can be considered. For more information please see this Editorial. Coverage includes the following, but is not limited to: Design (e.g. biomimicry, design for degradation/recycling/reduced toxicity…) Reagents & Feedstocks (e.g. renewables, CO2, solvents, auxiliary agents, waste utilization…) Synthesis (e.g. organic, inorganic, synthetic biology…) Catalysis (e.g. homogeneous, heterogeneous, enzyme, whole cell…) Process (e.g. process design, intensification, separations, recycling, efficiency…) Energy (e.g. renewable energy, fuels, photovoltaics, fuel cells, energy storage, energy carriers…) Applications (e.g. electronics, dyes, consumer products, coatings, pharmaceuticals, preservatives, building materials, chemicals for industry/agriculture/mining…) Impact (e.g. safety, metrics, LCA, sustainability, (eco)toxicology…) Green chemistry is, by definition, a continuously-evolving frontier. Therefore, the inclusion of a particular material or technology does not, of itself, guarantee that a paper is suitable for the journal. To be suitable, the novel advance should have the potential for reduced environmental impact relative to the state of the art. Green Chemistry does not normally deal with research associated with 'end-of-pipe' or remediation issues.














