Preparation of porous carbons from non-metallic fractions of waste printed circuit boards by chemical and physical activation

被引：27

作者：

Ke Yi-hu ^{[1
]}

Yang Er-tao ^{[1
]}

Liu Xin ^{[1
]}

Liu Chun-ling ^{[1
]}

Dong Wen-sheng ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Sch Chem & Chem Engn, Key Lab Appl Surface & Colloid Chem SNNU, MOE, Xian 710062, Peoples R China

来源：

NEW CARBON MATERIALS | 2013年 / 28卷 / 02期

关键词：

Non-metallic fractions; Waste printed circuit boards; Activated carbon; DEGRADATION; TECHNOLOGY; PLASTICS;

D O I：

10.1016/S1872-5805(13)60069-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Non-metallic fractions of FR-3 type waste printed circuit boards were pyrolyzed at high temperatures. The resultant char at 600 degrees C was used to prepare activated carbons by physical and chemical activation. The influence of pyrolysis temperature on char yields, and activation conditions on the bum-off and porous properties of the activated carbons were investigated. Results show that char yields decrease with pyrolysis temperature. A granular activated carbon with a surface area of 1 019 m(2).g(-1) and a pore volume of 1.1 cm(3).g(-1) can be obtained by moulding, pyrolysis and physical activation using H2 0 as an activation agent. An activated carbon powder with a surface area of 3 112 m(2).g(-1) and a pore volume of 1.13 cm(3).g(-1) can be achieved by KOH activation. Keywords: Non-metallic fractions; Waste printed circuit boards; Activated carbon

引用

页码：108 / 114

页数：7

共 24 条

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