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Citation: LUO Pei-Cheng, SHI Lei, XIANG Guo-Zhao, ZHAO Su-Qing, JIAO Zhen. Synthesis of Copper Pyrithione by Co-Precipitation Method in Tee Mixer Reactor[J]. Chinese Journal of Inorganic Chemistry, ;2013, 29(8): 1738-1744. doi: 10.3969/j.issn.1001-4861.2013.00.273 shu

Synthesis of Copper Pyrithione by Co-Precipitation Method in Tee Mixer Reactor

1.
School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189 China

Received Date: 7 March 2013
Available Online: 5 May 2013
Fund Project: 国家自然科学基金(No.21006011) (No.21006011)江苏省自然科学基金(No.BK2010410)资助项目。 (No.BK2010410)

This work aims to develop a jet co-precipitation process in a tee mixer reactor to synthesize copper pyrithione (CPT). The morphology and size of CPT in dispersion were investigated by using SEM and small angle light scattering (SALS). The rod-like primary particles were obtained via the jet co-precipitation process. These primary particles tend to form aggregates with a fractal dimension of 2.1 in aqueous solutions. The effect of the reaction temperature and stoichiometry ratio of sodium pyrithione (SPT)/CuSO₄ on the size of particles aggregates was studied. Decreasing the reaction temperature can reduce the size of the aggregates in terms of average radius of gyration, <R_g>. The excess of SPT is also beneficial to reducing <R_g>. When SPT excess reaches a certain value, e.g. ~25%, <R_g> decreases slightly with a further SPT excess.
- copper pyrithione;tee mixer reactor;co-precipitation;rod-like;small angle light scattering;fractal structure
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