Degradation of plastics to liberate metals from electronic waste

被引：0

作者：

Kvithyld, Anne ^{[1
]}

Shuey, Scott ^{[2
]}

Gaal, Sean ^{[3
]}

Taylor, Patrick ^{[4
]}

机构：

[1] Norwegian Univ Sci & Technol, Dept Mat Technol, NO-7491 Trondheim, Norway

[2] Freeport McMoRan Mining Co, Proc Technol Ctr, Safford 85548, AZ USA

[3] SINTEF, Dept Chem Mat, Trondheim, Norway

[4] Colorado Sch Mines, Dept Mat & Met Engn, Boulder, CO 80301 USA

来源：

EPD CONGRESS 2008 | 2008年

关键词：

electronic waste recycling; degradation plastics;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Printed circuited boards contain considerable quantities of valuable metal, while also containing many environmental pollutants making them unsuitable for landfill. In this study the decomposition of common plastics used in printed circuit boards were studied. Polytetrafluoroethylene (PTFE), polyvinyl chloride. (PVC) and polyethylene (PE) were heated in both CO2 and argon atmospheres using a thermo-gravimetric furnace (TG) coupled to a mass, spectrometer (MS). Soda ash Na2CO3 and baking soda NaHCO3 were used as reactants. The degradation temperatures and evolved gases are presented for single plastics and mixtures. Mixed plastics ace shown to behave as a sum of the individual plastics. The mass loss temperature is the same in CO2 and argon. However, less residue is formed when heated in CO2.

引用

页码：497 / +

页数：2

共 50 条

[21] Concentration of precious metals during their recovery from electronic waste
Cayumil, R.
Khanna, R.
Rajarao, R.
Mukherjee, P. S.
Sahajwalla, V.
WASTE MANAGEMENT, 2016, 57 : 121 - 130
[22] Electrified chlorination for critical metals recovery from electronic waste
Nature Chemical Engineering, 2024, 1 (10): : 613 - 614
[23] Metals extraction processes from electronic waste: constraints and opportunities
Shovra Chandra Chakraborty
Md. Wahad Uz Zaman
Mozammel Hoque
Md. Qamruzzaman
Jahid Uz Zaman
Delowar Hossain
Biplob Kumar Pramanik
Luong Ngoc Nguyen
Long Duc Nghiem
Md. Mofijur
Md. Ibrahim H. Mondal
Jeni Aprazita Sithi
Sha Md Shahan Shahriar
Md. Abu Hasan Johir
Mohammad Boshir Ahmed
Environmental Science and Pollution Research, 2022, 29 : 32651 - 32669
[24] Mechanism of Bioleaching of Metals from Electronic Waste by Acidithiobacillus Ferrooxidans
Xu, Jinqiu
Wang, Jingwei
Bai, Jianfeng
PROCEEDINGS OF THE 2013 INTERNATIONAL CONFERENCE ON MATERIAL SCIENCE AND ENVIRONMENTAL ENGINEERING (MSEE 2013), 2013, : 255 - 258
[25] Composition of plastics from waste electrical and electronic equipment (WEEE) by direct sampling
Martinho, Graca
Pires, Ana
Saraiva, Luanha
Ribeiro, Rita
WASTE MANAGEMENT, 2012, 32 (06) : 1213 - 1217
[26] Metals extraction processes from electronic waste: constraints and opportunities
Chakraborty, Shovra Chandra
Zaman, Md Wahad Uz
Hoque, Mozammel
Qamruzzaman, Md
Zaman, Jahid Uz
Hossain, Delowar
Pramanik, Biplob Kumar
Nguyen, Luong Ngoc
Nghiem, Long Duc
Mofijur, Md
Mondal, Md Ibrahim H.
Sithi, Jeni Aprazita
Shahriar, Sha Md Shahan
Johir, Md Abu Hasan
Ahmed, Mohammad Boshir
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2022, 29 (22) : 32651 - 32669
[27] Valuable Metals and Energy Recovery from Electronic Waste Streams
Tesfaye, Fiseha
Lindberg, Daniel
Hamuyuni, Joseph
ENERGY TECHNOLOGY 2017: CARBON DIOXIDE MANAGEMENT AND OTHER TECHNOLOGIES, 2017, : 103 - 116
[28] Reuse of plastics from electronic waste by fast identification of polymer type and additives
Uhl, A
Lucht, H
ELECTRONICS GOES GREEN 2000 (PLUS): A CHALLENGE FOR THE NEXT MILLENNIUM, VOL 1, PROCEEDINGS, 2000, : 653 - 657
[29] Thermal processing of plastics from waste electrical and electronic equipment for hydrogen production
Acomb, Jonathan C.
Nahil, Mohamad Anas
Williams, Paul T.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 2013, 103 : 320 - 327
[30] RoHS regulated Substances in Mixed Plastics from Waste Electrical and Electronic Equipment
Wager, Patrick A.
Schluep, Mathias
Mueller, Esther
Gloor, Rolf
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2012, 46 (02) : 628 - 635

← 1 2 3 4 5 →