荧光灯管芯柱玻璃中金属铅的机械化学硫化

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Abstract

With sodium sulfide as the vulcanizing agent, the lead in the fluorescent tube core glass was rapidly transformed to lead sulfide by mechanochemical sulfidation. The different conditions of mechanochemical sulfidation, that is, milling time, milling speed and ball-to-material ratio were investigated by single factor experiment. And the structural properties of samples after mechanochemical sulfidation were characterized by SEM, XRD and particle size. The results showed that the sulfidation rate increased with the increase of milling time and milling speed, increased first and then decreased with the increase of ball-to-material ratio. When the milling speed was 750r/min, the milling time was 120min and the ball-to-material ratio was 50:1g/g, the lead sulfidation rate in the fluorescent tube core glass was 96.18%. The mechanochemical sulfidation product of lead in fluorescent lamp tube core glass was PbS. The particle size of fluorescent lamp core glass powder decreased with the increase of milling speed and milling time.

Key words： fluorescent tube core glass lead sulfide sulfidation rate mechanochemical sulfidation

Received: 20 June 2018

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	Articles by authors
	WU Ze-bing
	MENG Wen
	WANG Xiao-yan
	ZHANG Zi-wei
	YUAN Wen-yi
	WANG Lin-cai
	ZHANG Cheng-long
	BAI Jian-feng
	WANG Jing-wei

Cite this article:

WU Ze-bing,MENG Wen,WANG Xiao-yan等. Lead mechanochemical sulfidation of fluorescent tube core glass[J]. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(11): 4211-4217.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2018/V38/I11/4211

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