陰極射線管（CRT）是全球范圍內(nèi)的一種主要電子廢物。盡管我們現(xiàn)在已不能從商店里購買到此類產(chǎn)品,但在發(fā)達國家中廢CRT的數(shù)量還未達到峰值,并且在隨后的幾年里發(fā)展中國家也會迎來這一報廢高峰。另一方面,隨著像液晶顯示（LCD）和等離子體顯示等新技術(shù)的出現(xiàn),對CRT中所含鉛玻璃的需求也將消失。近幾年,電子廢物回收項目收集到的廢CRT數(shù)量在持續(xù)增長,全球有大量的報廢電視機和電腦顯示器進入廢物流。本研究旨在確定中國CRT電視機的流向,分析特定金屬的的物質(zhì)流,以形成廢物和資源管理策略。本文評價了十年內(nèi)投入中國市場的CRT電視機,這些產(chǎn)品一經(jīng)報廢,將產(chǎn)生18.36萬噸玻璃,171.82萬噸塑料,24.3萬噸鋼鐵,15.35萬噸鉛,7.66萬噸銅,7千8百噸鋁,和1千6百噸鎳。目前,中國消費者幾乎不再有購買此類產(chǎn)品的需求,鑒于該產(chǎn)品的使用壽命為10年,近幾年報廢CRT電視機的產(chǎn)生量將會非�？捎^。為了最大程度降低報廢電視機和電腦顯示器中有害物質(zhì)的危害,回收有價材料,本文開發(fā)了兩種處理報廢電腦顯示器的方法,可實現(xiàn)有價材料和有害物質(zhì)的手動分揀和回收。本文研究的第一種處理技術(shù)是通過機械活化和熱還原,增強酸浸過程... 

【文章頁數(shù)】：127 頁

【學(xué)位級別】：博士

【文章目錄】：
中文摘要
ABSTRACT
Chapter 1. INTRODUCTION
    1.1 Introduction
        1.1.1 Why lead is important in glass?
        1.1.2 Why are CRTs difficult to recycle?
        1.1.3 Composition of CRTs
    1.2. Significance and value of research
        1.2.1 Extraction of lead metal
        1.2.2 Use in melting flux
        1.2.3 Use in ceramics and building products
        1.2.4 Use in closed loop recycling system
    1.3. Research Contents
        1.3.1 CRTs Waste: An Overview of Global Demand for Processing
        1.3.2 To Evaluate the potential of material flow of waste CRTs Glassin China
        1.3.3 To develop a lead extraction method from waste CRTs funnelglass
    1.4. Structure of this dissertation
Chapter 2. WASTE CRTs: AN OVERVIEW OF GLOBAL CHALLENGES, AVAILABLE RECYCLING TECNOLGIES AND SOLUTIONS
    2.1. Introduction
    2.2. Literature review of CRT management
        2.2.1 Background
        2.2.2 Global status of CRT devices
        2.2.3 The current situation of Primary and Secondary CRT GlassMaterial
        2.2.4 CRT recycling
        2.2.5 Environmental impacts
    2.3. Materials and methods
    2.4. The current status of waste CRT generation
    2.5. Challenges for recycling waste CRTs
        2.5.1 Characteristics of waste CRT
        2.5.2 Toxic substances in waste CRTs
        2.5.3 Infrastructure and legislation challenges
    2.6. Available waste CRT recycling technologies
        2.6.1 CRT glass separation
        2.6.2 Removal of coatings from panel glass
        2.6.3 CRT recycling system
    2.7. Solutions for waste CRTs
        2.7.1. Extraction of lead from CRT glass
        2.7.2 Waste vitrification glass
        2.7.3 Clay bricks
        2.7.4 Smelting flux
        2.7.5 Crystal glass
        2.7.6 Ceramic glaze
        2.7.7 Concrete
        2.7.8 Foam glass
    2.8. Addressing Future Recycling Challenges
    2.9. Summary
Chapter 3. EVALUATING MATERIAL FLOW ANALYSIS OF WASTECATHODE RAY TUBES TELEVISION IN CHINA
    3.1. Introduction
    3.2. Material and Methods
        3.2.1 Stan Software
        3.2.2 Source of CRT TV Data
        3.2.3 Net production of CRT TVs
        3.2.4 Stock or in use
        3.2.5 End of life of CRT TVs
        3.2.6 Recycling
        3.2.7 Characterization of waste CRT TVs for the metal resources
    3.3. Results and discussions
        3.3.1 Material and substance flow of CRT TVs in China
        3.3.2 Estimated amount of waste CRT TVs generation
        3.3.3 End-of-life
        3.3.4 Dumping of CRT TVs
    3.4. Summary
Chapter 4. LEAD DETOXIFICATION FROM WASTE CRT FUNNEL GLASSES THROUGH MECHANO-THERMAL PROCESS BY USINGCARBON AS A REDUCING AGENT
    4.1. Introduction
    4.2. Materials and methods
        4.2.1 Sample preparation
        4.2.2 Activating process
        4.2.3 Carbon-thermal reduction treatment
        4.2.4 Acid leaching
        4.2.5 Characterization of the samples
    4.3. Results and discussion
        4.3.1 Characterization of the samples
        4.3.2 Characteristics of changes in the lead after reduction
        4.3.3 Effects of various parameters on lead removal rate
    4.4. Summary
Chapter 5. AN EFFICIENT LEAD EXTRACTION METHOD FOR WASTE CATHODE RAY TUBES THROUGH MECHANO-CHEMICAL PROCESS BYUSING NTA CHELATING REAGENT
    5.1. Introduction
    5.2. Materials and methods
        5.2.1 Sample preparation
        5.2.2 Activation and mechano-chemical treatment of the funnel glasspowder
        5.2.3 Recovery of metal by Ferric Sulfate
        5.2.4 Analysis
    5.3. Results and Discussion
        5.3.1 Mechano-chemical Treatment of the Lead-Glass Powder
        5.3.2 Recovery of silicate glass
        5.3.3 Recovery of lead and barium
    5.4. Summary
Chapter 6. CONCLUSION AND OUTLOOK
REFERENCES
ACKNOWLEDGEMENTS
CURRICULUM VITAE


【參考文獻】：
期刊論文
[1]Recovery of waste rare earth fluorescent powders by two steps acid leaching[J]. Shen-Gen Zhang,Min Yang,Hu Liu,De-An Pan,Jian-Jun Tian.  Rare Metals. 2013(06)
[2]廢陰極射線管（CRT）玻璃資源化技術(shù)的研究進展[J]. 石翔,李光明,胥清波,賀文智,梁宏根.  材料導(dǎo)報. 2011(11)
[3]我國鉛物質(zhì)流分析研究[J]. 郭學(xué)益,鐘菊芽,宋瑜,田慶華.  北京工業(yè)大學(xué)學(xué)報. 2009(11)



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