电路板含铜蚀刻废液资源利用标准化及发展趋势

doi:10.19964/j.issn.1006-4990.2020-0529

Abstract

Abstract:

In China’s printed circuit board industry,a large amount of copper-containing etching waste solution was produced every year,and its resource products have been widely used in many industries,such as basic copper chloride for feed and in-dustry,copper sulfate for industry and electroplating,basic copper carbonate for catalysts and wood preservatives,etc.Howev-er,the industry’s technical confusion and lack of standards have led to uneven of treatment process and products quality,which remains great environmental risks and waste of resources.The need to develop standards for industry is very urgent.The current standards and trends in the comprehensive utilization of resources and products from copper-containing etching waste solution of printed circuit boards were highlighted.By formulating corresponding standards,setting strict technical requirements,strictly controlling pollutants,controlling product quality,restraining and regulating industry behavior,the manage-ment of China’s circuit board etching waste solution industry and the development of copper salt production and application technology would be promoted,which would promote the development of China’s circular economy and waste-free cities.

Key words: printed circuit board, copper containing etching waste solution, botallackite, recycling, standardization

CLC Number:

TQ131.21

Wen Yanshen,Chen Gang,Wang Weihong,Chen Changming,Gong Chuangzhou,Zhao Jie. Standardization and development trend of utilization of copper-containing etching waste solution on circuit boards[J]. Inorganic Chemicals Industry, 2021, 53(8): 27-30.

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References 17

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项目	w [Cu₂（OH）₃]Cl]	w[碱式氯化铜（以Cu计）]	w （Pb）	w （Cd）	w （As）	w （酸不溶物）	w[细度（通过 0.25 mm试验筛）]
美国传统环境服务有限公司指标	—	≥58.9	≤0.000 18	≤0.000 005	≤0.004	—	—
GB/T 21696—2008	≥98	≥58.12	≤0.001	≤0.000 3	≤0.002	≤0.2	≥95
实际产品检测结果	≥99.6	≥59.3	≤0.000 09	≤0.000 009	≤0.000 2	≤0.005	≥99.8

项目		w [Cu₂（OH）₃ Cl]	w[碱式氯化铜（以Cu计）]	w（Pb）	w（Cd）	w（Fe）	w（Cr）	w（Ni）	w（As）	w[细度（通过 0.25 mm试验筛）]
行业标准	一等品	≥98	≥58.3	≤0.005	≤0.001	≤0.01	≤0.005	≤0.01	≤0.005	≥95
行业标准	合格品	≥95	≥56.5	≤0.01	≤0.003	—	—	—	≤0.01	—
实际产品检测结果		≥98.8	≥58.8	≤0.000 09	≤0.000 009	≤0.004 6	≤0.001	≤0.002	≤0.000 5	≥99

行业标准		w（CuSO₄·5H₂O）/ %	w（As）/ %	w（Pb）/ %	w（Fe）/ %	w[氯化物（以 Cl计）]/%	w（水不溶物）/ %	pH （5%,20 ℃）
日本标准JIS K1433—1986 《工业用硫酸铜》		≥98.5	—	—	≤0.1	—	≤0.5	—
HG/T 5215—2017 《工业硫酸铜》	优等品	≥98.0	≤0.001	≤0.001	≤0.002	≤0.01	≤0.02	3.5~4.5
HG/T 5215—2017 《工业硫酸铜》	一等品	≥97.0	≤0.002	≤0.003	≤0.005	≤0.03	≤0.05
实际产品检测结果		≥99.2	≤0.000 2	≤0.000 09	≤0.001	≤0.000 8	≤0.005	3.90

项目		w（CuSO₄·5H₂O）/%	w（As）/ %	w（Pb）/ %	w（Ca）/ %	w（Fe）/%	w（Cd）/ %	w（Mn）/%	w（Al）/ %	w（Cr）/ %	w（Co）/ %	w（Ni）/ %	w（Zn）/ %	w[氯化物（以Cl计）]/%	w（水不溶物）/ %	pH（5%, 20 ℃）
德国标准DIN 50972：1995		≥98.0	≤ 0.000 5	≤ 0.005	≤ 0.000 5	≤ 0.005	—	—	—	—	≤ 0.000 5	≤ 0.000 5	≤ 0.002	≤ 0.002	≤ 0.005	3.5~ 4.5
HG/T 3592—2020	优等品	≥99.0	≤ 0.000 5	≤ 0.001	≤ 0.000 5	≤ 0.002	≤ 0.000 1	≤ 0.000 3	≤ 0.001	≤ 0.000 5	≤ 0.000 5	≤ 0.000 5	≤ 0.001	≤ 0.002	≤ 0.005	3.5~ 4.5
HG/T 3592—2020	一等品	≥98.5	≤ 0.001 0	≤ 0.005	≤ 0.005	≤ 0.003	≤ 0.000 5	≤ 0.000 5	≤ 0.002	≤ 0.001	≤ 0.002	≤ 0.002	≤ 0.002	≤ 0.005	≤0.01	3.5~ 4.5
实际产品检测结果		≥99.9	≤ 0.000 2	≤ 0.000 09	≤ 0.000 03	≤ 0.001 5	≤ 0.000 009	≤ 0.000 04	≤ 0.000 3	≤ 0.000 1	≤ 0.000 1	≤ 0.000 24	≤ 0.000 02	≤ 0.001 5	≤ 0.005	3.68

项目		w （Cu）	w （Na）	w （Fe）	w （Pb）	w （Zn）	w （Ca）	w （Cr）	w （Cd）	w （As）	w（盐酸不溶物）	w[氯化物（以Cl计）]	w[硫酸盐（以SO₄计）]
行业标准	Ⅰ类	≥55.0	≤0.05	≤0.002	≤0.002	≤0.002	≤0.002	≤0.001	—	—	≤0.01	≤0.05	≤0.05
行业标准	Ⅱ类	≥54.0	≤0.25	≤0.03	≤0.003	—	≤0.03	≤0.003	≤0.000 6	≤0.005	≤0.1	≤0.05	≤0.05
某公司产品检测结果		≥55.7	≤0.239	≤0.013	≤0.000 1	≤0.004	≤0.030	≤0.002	≤0.000 1	≤0.000 2	≤0.004	≤0.02	≤0.04

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Inorganic Acid-Base-Salt Committee of CIESC

Standardization and development trend of utilization of copper-containing etching waste solution on circuit boards

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