Catalogue of recycling projects for waste electronic components and materials

Chapter 1 development and classification of electronic components 1 1? 1 electronic component development 1 1? 2 classification of electronic components 3 1? 2? 1 resistor 3 1? 2? 2 capacitor 9 1? 2? 3 inductance element 20 1? 2? 4 electrical contact 27 1? 2? 5 semiconductor transistor 35 1? 2? 6 integrated circuit 38 1? 2? 7 electronic display device 4 1 1? 2? 8 piezoelectric device 43 1? 2? 9 electroacoustic device 44 1? 2? 10 chip components 45 chapter 2 materials in electronic components 47 2? 1 resistive material 47 2? 1? 1 wire wound resistance material 2 of resistor 47? 1? 2 Non-wire wound resistive materials for resistors 48 2? 2 contact materials 48 2? 2? 1 Classification of electrical contacts 48 2? 2? 2 Common electrical contact materials 49 2? 3 dielectric material 49 2? 3? 1 capacitor dielectric material 49 2? 3? Microwave dielectric material 50 2? 4 semiconductor materials 50 2? 5 photoelectric display material 5 1 2? 6 camera material 52 2? 7 optical fiber material 52 2? 8 Information recording and storage materials 53 2? 8? 1 magnetic recording and storage materials 53 2? 8? 2 ferroelectric memory thin film materials 54 2? 8? 3 optical recording medium material 54 2? 9 Auxiliary materials for integrated circuits and hybrid microcircuits? 9? 1 thick film electronic paste 55 2? 9? 2 Lead frame and lead material 56 2? 9? 3 packaging and packaging materials 56 2? 9? 4 integrated circuit substrate substrate material 56 2? 10 piezoelectric material 57 2? 1 1 sensitive material 57 2? 1 1? 1 force sensitive material 58 2? 1 1? 2 Heat-sensitive materials 58 2? 1 1? 3 photosensitive material 59 2? 1 1? 4 pressure sensitive material 59 2? 1 1? 5 gas-sensitive materials 59 Chapter III Analysis of Industrial Waste of Electronic Components 60 3? 1 Pretreatment of waste electronic component samples 60 3? 1? 1 Selection of analytical methods 6 1 3? 1? 2 Collecting and analyzing samples 6 1 3? 1? Sample preparation for metal analysis? 2 gold analysis 66 3? 2? 1 determination of lead content 67 3? 2? 2 reduction gravimetric method 69 3? 2? 3 iodometry 70 3? 2? 4 ammonium ferrous sulfate-potassium dichromate titration 7 1 3? Silver 72 3 analysis? 3? 1 thiocyanate titration 73 3? 3? 2 EDTA titration 75 3? 3? 3 potentiometric titration 75 3? Analysis of platinum 76 3? 4? 1 formic acid reduction gravimetric method 77 3? 4? 2 ammonium chloroplatinate precipitation gravimetric method 77 3? 4? 3 SnCl？ 2 absorption spectrophotometry 78 3? 5 determination of palladium 79 3? 5? 1 dimethylglyoxime gravimetric method 79 3? 5? Precipitation separation of 2-dimethylglyoxime -EDTA back titration 80 3? 6 determination of copper 8 1 3? 6? 1 constant current electrolysis 82 3? 6? 2 iodometry 86 3? 6? 3 EDTA complexometric titration 90 3? 7 determination of tin 9 1 3? 7? 1 complexometric titration 9 1 3 7? 2 iron powder reduction-potassium iodate titration 94 3? 7? Sodium hypophosphite reduction-potassium iodate titration 97 3? 8 Determination of lead 99 3? 8? 1 lead chromate precipitation-ferrous titration 10 1 3? 8? 2 EDTA volumetric method 103 3? 9 determination of chromium 105 3? 9? 1 ammonium persulfate oxidation titration 106 3? 9? 2 perchloric acid oxidation volumetric method 109 3? Determination of 10 cadmium? Determination of mercury by potassium thiocyanate volumetric method? 12 nickel 1 15 3 analysis? 12? 1 dimethylglyoxime precipitation gravimetric method 1 15 3? 12? 2 precipitation separation of dimethylglyoxime -EDTA titration 1 16 chapter iv recycling of precious metals in industrial wastes of electronic components 1 19 4? 1 precious metals in electronic components 1 19 4? 1? 1 precious metal wire wound resistance material 120 4? 1? 2 noble metal non-wire wound resistance material 124 4? 1? 3 precious metal contact material 126 4? 1? 4 Precious metal slurry 130 4? 1? 5 Precious metals in sensitive devices 14 1 4? 1? 6 precious metals in multilayer ceramic devices and components 146 4? 2 Recovering gold from electronic component industrial waste 150 4? 2? Recovery of gold from 1 gold-bearing waste liquid 152 4? 2? 2 Recovery of gold from gold-bearing solid waste 158 4? 2? Recovery of gold from gold-plated waste 160 4? 2? 4 pyrometallurgical recovery of gold from electronic components? 2? 5 wet recovery of gold from electronic components 166 4? 3 Recovering silver 17 1 4 from electronic component industrial waste? 3? 1 recovery method of silver from silver-containing waste 17 1 4? 3? Recovering silver from electronic components by pyrometallurgy? 3? 3 wet recovery of silver from electronic components 179 4? Recovery of palladium 182 4 from industrial waste of electronic components? 4? How to recover 1 palladium 183 4? 4? 2. Recovering Pd185 from waste cards 4? 4? 3 Recovering Pd 189 4 from capacitors? Recovery of platinum 19 1 4 from industrial wastes of electronic components? 5? How to recover 1 platinum 19 1 4? 5? 2 pyrometallurgical recovery of platinum from electronic components 196 4? 5? 3 wet recovery of platinum from electronic components 196 4? 6 refining of precious metals 199 4? 6? 1 gold refining 199 4? 6? 2 silver refining 203 4? 6? 3 Platinum Refining 207 Chapter 5 Recovery and Disposal of Base Metals from Industrial Wastes of Electronic Components 2 13 5? Recovery 1 copper 2 13 5? 1? 1 recovery method of waste copper 2 16 5? 1? 2 copper recovery in electronic components 2 17 5? 2-lead recovery 22 1 5? 2? Recovery of lead by 1 pyrometallurgical process? 2? 2 wet recovery of lead 222 5? 3 tin recovery 225 5? 4 nickel recovery 226 5? 4? 1 sulfuric acid leaching-nickel carbonate transformation method 226 5? 4? 2 sulfuric acid leaching-nickel hydroxide conversion method 227 5? 4? 3 chemical precipitation-electrolytic recovery method 228 5? 4? 4 ammonia complex refining method 229 5? 4? 5 multistage precipitation recovery method 230 5? 4? 6 extraction, impurity removal and recovery methods 23 1 5? 5 aluminum recovery 233 5? 5? 1 casting equipment 233 5? 5? 2 Vertical semi-continuous casting machine and soaking pit 235 5? 5? 3 flue gas treatment system 235 5? 5? 4 process parameters and quality control system? 6 Heavy metal wastewater treatment in the recycling of waste electronic components 236 5? 6? 1 chemical technology governance 237 5? 6? 2 Physical and chemical technology governance 243 5? 6? 3 Biochemical Technology Governance Chapter VI Environmental Protection in Waste Recycling of Electronic Components Industry 249 6? 1 Disposal of organic polymer materials in industrial wastes of electronic components 249 6? 1? 1 treatment of organic wastewater 249 6? 1? 2 organic waste gas treatment 253 6? 1? 3 Treatment of organic waste residue 254 6? 2 Dust removal in the process of electronic waste recycling 255 6? 3 Acid waste gas treatment 256 6? 4 Waste gas treatment during metal ingot casting 256 6? 4? 1 dust removal technology 257 6? 4? 2 So? Exhaust gas purification? 4? 3 nitrogen oxides? 259 6? 5 inorganic wastewater treatment 26 1 6? 5? 1 treatment of acid-base wastewater 26 1 6? 5? 2 heavy metal wastewater treatment? 5? 3 cyanide-containing wastewater treatment 267 references 270