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ÈçÌ⣬ÎÄÕÂÃû£ºRemoval of Lead From Cathode Ray Tube Funnel Glass By Generating The Sodium Silicate ×÷Õߣº Biao Hu, Shuangshuang Zhao, Shuhao Zhang. ÔÓÖ¾£ºJournal of the Air & Waste Management Association£¬2015,65(1):106~114. |
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Removal of lead from cathode ray tube funnel glass by generating the sodium silicate ×÷Õß:Hu, B (Hu, Biao)[ 1 ] ; Zhao, SS (Zhao, Shuangshuang)[ 1 ] ; Zhang, SH (Zhang, Shuhao)[ 1 ] JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION ¾í: 65 ÆÚ: 1 Ò³: 106-114 DOI: 10.1080/10962247.2014.976721 ³ö°æÄê: 2015 ²é¿´ÆÚ¿¯ÐÅÏ¢ ÕªÒª In the disposal of electronic waste, cathode ray tube (CRT) funnel glass is an environmental problem of old television sets. Removal of the lead from CRT funnel glass can prevent its release into the environment and allow its reuse. In this research, we reference the dry progress productive technology of sodium silicate, the waste CRT glass was dealt with sodium silicate frit melted and sodium silicate frit dissolved. Adding a certain amount of Na2CO3 to the waste CRT glass bases on the material composition and content of it, then the specific modulus of sodium silicate frit is obtained by melting progress. The silicon, potassium and sodium compounds of the sodium silicate frit are dissolved under the conditions of high temperature and pressure by using water as solvent, which shows the tendency that different temperature, pressure, liquid-solid ratio and dissolving time have effect on the result of dissolving. At 175 degrees C(0.75MPa), liquid-solid ratio is 1.5:1, the dissolving time is 1h, the dissolution rate of sodium silicate frit is 44.725%. By using sodium sulfide to separate hydrolysis solution and to collect lead compounds in the solution, the recovery rate of lead in dissolving reached 100% and we can get clean sodium silicate and high purity of lead compounds. The method presented in this research can recycle not only the lead but also the sodium, potassium and other inorganic minerals in CRT glass and can obtain the comprehensive utilization of leaded glass. ¹Ø¼ü´Ê KeyWords Plus:MECHANICAL ACTIVATION; CRT GLASS; RECOVERY; CERAMICS; DISPOSAL ×÷ÕßÐÅÏ¢ ͨѶ×÷ÕßµØÖ·: Hu, B (ͨѶ×÷Õß) [ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ] Tianjin Univ Technol, Sch Environm Sci & Safety Engn, Tianjin 300384, Peoples R China. µØÖ·: [ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ] [ 1 ] Tianjin Univ Technol, Sch Environm Sci & Safety Engn, Tianjin 300384, Peoples R China µç×ÓÓʼþµØÖ·:hubiaomail@126.com »ù½ð×ÊÖúÖÂл »ù½ð×ÊÖú»ú¹¹ ÊÚȨºÅ Tianjin Science and Technology Support Program 14ZCDGSF00035 ²é¿´»ù½ð×ÊÖúÐÅÏ¢ ³ö°æÉÌ TAYLOR & FRANCIS INC, 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA Àà±ð / ·ÖÀà Ñо¿·½Ïò:Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences Web of Science Àà±ð:Engineering, Environmental; Environmental Sciences; Meteorology & Atmospheric Sciences ÎÄÏ×ÐÅÏ¢ ÎÄÏ×ÀàÐÍ:Article ÓïÖÖ:English Èë²ØºÅ: WOS:000346647400011 PubMed ID: 25946963 ISSN: 1096-2247 eISSN: 2162-2906 ÆÚ¿¯ÐÅÏ¢ Ŀ¼£º Current Contents Connect® Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports® ÆäËûÐÅÏ¢ IDS ºÅ: AX0MX Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 26 Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0 |
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С˫ssigg: ½ð±Ò+20, ¡ï¡ï¡ïºÜÓаïÖú 2015-09-08 20:18:09
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С˫ssigg: ½ð±Ò+20, ¡ï¡ï¡ïºÜÓаïÖú 2015-09-08 20:18:09
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Removal of lead from cathode ray tube funnel glass by generating the sodium silicate ×÷Õß:Hu, B (Hu, Biao)[ 1 ] ; Zhao, SS (Zhao, Shuangshuang)[ 1 ] ; Zhang, SH (Zhang, Shuhao)[ 1 ] JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION ¾í: 65 ÆÚ: 1 Ò³: 106-114 DOI: 10.1080/10962247.2014.976721 ³ö°æÄê: 2015 ²é¿´ÆÚ¿¯ÐÅÏ¢ ÕªÒª In the disposal of electronic waste, cathode ray tube (CRT) funnel glass is an environmental problem of old television sets. Removal of the lead from CRT funnel glass can prevent its release into the environment and allow its reuse. In this research, we reference the dry progress productive technology of sodium silicate, the waste CRT glass was dealt with sodium silicate frit melted and sodium silicate frit dissolved. Adding a certain amount of Na2CO3 to the waste CRT glass bases on the material composition and content of it, then the specific modulus of sodium silicate frit is obtained by melting progress. The silicon, potassium and sodium compounds of the sodium silicate frit are dissolved under the conditions of high temperature and pressure by using water as solvent, which shows the tendency that different temperature, pressure, liquid-solid ratio and dissolving time have effect on the result of dissolving. At 175 degrees C(0.75MPa), liquid-solid ratio is 1.5:1, the dissolving time is 1h, the dissolution rate of sodium silicate frit is 44.725%. By using sodium sulfide to separate hydrolysis solution and to collect lead compounds in the solution, the recovery rate of lead in dissolving reached 100% and we can get clean sodium silicate and high purity of lead compounds. The method presented in this research can recycle not only the lead but also the sodium, potassium and other inorganic minerals in CRT glass and can obtain the comprehensive utilization of leaded glass. ¹Ø¼ü´Ê KeyWords Plus:MECHANICAL ACTIVATION; CRT GLASS; RECOVERY; CERAMICS; DISPOSAL ×÷ÕßÐÅÏ¢ ͨѶ×÷ÕßµØÖ·: Hu, B (ͨѶ×÷Õß) ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ Tianjin Univ Technol, Sch Environm Sci & Safety Engn, Tianjin 300384, Peoples R China. µØÖ·: ÏÔʾÔöÇ¿×éÖ¯ÐÅÏ¢µÄÃû³Æ [ 1 ] Tianjin Univ Technol, Sch Environm Sci & Safety Engn, Tianjin 300384, Peoples R China µç×ÓÓʼþµØÖ·:hubiaomail@126.com »ù½ð×ÊÖúÖÂл »ù½ð×ÊÖú»ú¹¹ ÊÚȨºÅ Tianjin Science and Technology Support Program 14ZCDGSF00035 ²é¿´»ù½ð×ÊÖúÐÅÏ¢ ³ö°æÉÌ TAYLOR & FRANCIS INC, 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA Àà±ð / ·ÖÀà Ñо¿·½Ïò:Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences Web of Science Àà±ð:Engineering, Environmental; Environmental Sciences; Meteorology & Atmospheric Sciences ÎÄÏ×ÐÅÏ¢ ÎÄÏ×ÀàÐÍ:Article ÓïÖÖ:English Èë²ØºÅ: WOS:000346647400011 PubMed ID: 25946963 ISSN: 1096-2247 eISSN: 2162-2906 ÆÚ¿¯ÐÅÏ¢ Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports® ÆäËûÐÅÏ¢ IDS ºÅ: AX0MX Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 26 Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0 ÒýÎÄÍøÂç 0 ±»ÒýƵ´Î 26 ÒýÓõIJο¼ÎÄÏ× ²é¿´ Related Records ²é¿´ÒýÖ¤¹ØÏµÍ¼²é¿´ÒýÖ¤¹ØÏµÍ¼ µ±ÓÐÈËÒýÓô˼Ǽʱ½ÓÊÕµç×ÓÓʼþ´´½¨ÒýÎĸú×Ù (Êý¾ÝÀ´×Ô Web of ScienceTM ºËÐĺϼ¯) È«²¿±»ÒýƵ´Î¼ÆÊý 0 / ËùÓÐÊý¾Ý¿â 0 / Web of Science ºËÐĺϼ¯ 0 / BIOSIS Citation Index 0 / Öйú¿ÆÑ§ÒýÎÄÊý¾Ý¿â 0 / Data Citation Index 0 / SciELO Citation Index ´Ë¼Ç¼À´×Ô: Web of ScienceTM ºËÐĺϼ¯ |

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