Development of the quick decomposition technology of the sprayed-on asbestos by the electromagnetic wave heating method
电磁波加热法喷涂石棉快速分解技术的开发
基本信息
- 批准号:18310066
- 负责人:
- 金额:$ 9.64万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:2006
- 资助国家:日本
- 起止时间:2006 至 2007
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
1. Asbestos in the cement, calcium chloride and asbestos mixture were decomposed quickly by the electromagnetic wave heating methodThe temperature of the sample was not able to measure directly, but it was measured with an optical pyrometer by the loss of the crucible for a microwave oven upper part, and about 1, 300 degrees Celsius were shown in the temperature. In coordination with quantity of addition of the calcium chloride, yes or no of the asbestos origin fiber of burnt samples was observed. The burnt sample was washed in the pH 5 aceta which coordinated in buffer solution after it was crushed. Furthermore, the washed fluid was filtered by the men buran filter of the 0.2μm aperture diameter, and the microscopy of dregs was performed.The fiber was not observed in the case of 5wt% quantity of calcium chloride addition, but form of six fiber thing was observed during ten places of observation without it being done vitrifaction in the case of quantity of calcium chloride addition 12. … More 5wt%. Thermometry was difficult so that a gaseous thing grew at the time of heating. From this, it is supposed so that calcium chloride and the volatile of cement evaporate, and the evaporation latent heat is robbed of it when the fusion of the sample was not generated.2. The quick decomposition of sprayed-on asbestosFor the quick decomposition such as sprayed-on asbestos or the slate, the cut glass which occurred at the time of cutting of the slate as a sample was examined. Asbestos disperses with form of cotton, form of lump in a sample, and they coexist with cement. When 0.5wt% added calcium chloride in this slate cut glass, a vitreosity product was provided. Furthermore, fiber was not detected in the acetic acid dissolution dregs by the observation of the 10 field of vision. The electromagnetic wave heating method is thought with prospective technology because processing time is short. But because it is the test result of the very small scale, the calculation for large sized facilities is difficult. Less
1. 用电磁波加热法将水泥、氯化钙和石棉混合物中的石棉快速分解,样品的温度无法直接测量,但利用微波炉上部坩埚的损耗用光学高温计测量,温度显示在1300摄氏度左右。与氯化钙的添加量相协调,观察了烧样中石棉纤维的存在或不存在。烧过的样品粉碎后用pH为5的醋酸溶液洗涤,醋酸溶液与缓冲液配合。并用孔径为0.2μm的men buran滤器对洗涤液进行过滤,并对渣进行显微观察。氯化钙添加量为5wt%时,未观察到纤维的形成;氯化钙添加量为12时,未进行玻璃化,在10次观察中观察到6种纤维的形成。…超过5%。测温很困难,所以在加热的时候会产生气态的东西。由此推测,在试样未发生熔合时,氯化钙和水泥的挥发性物质蒸发,蒸发潜热被剥夺。喷淋石棉的快速分解对于喷淋石棉或板岩等快速分解,对板岩切割时产生的切割玻璃作为样品进行了检测。石棉在样品中以棉花的形式、块状的形式分散,并与水泥共存。在此板岩切割玻璃中加入0.5wt%的氯化钙,得到玻璃体产品。此外,通过10视野观察,醋酸溶渣中未检出纤维。电磁波加热法加工时间短,被认为是一种有发展前途的技术。但由于是小规模的试验结果,对于大型设施的计算比较困难。少
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Low-temperature decomposition of sprayed-on asbestos
喷涂石棉的低温分解
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:Masao FUJISHIGE;Ryota SATO;Ayano KURIBARA;Ikuko KARASAWA and Akira KOJIMA
- 通讯作者:Ikuko KARASAWA and Akira KOJIMA
Pyrolysis and low-temperature decomposition using salts of Crocidolite and amosite
使用青石棉和铁石棉的盐进行热解和低温分解
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:Masao FUJISHIGE;Ayano KURIBARA;Ikuko KARASAWA;Akira KOJIMA
- 通讯作者:Akira KOJIMA
Low-Temperature Pyrolysis of Crocidolite and Amosite using Calcium Salts as a Flux
使用钙盐作为熔剂低温热解青石棉和铁石棉
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:Masao FUJISHIGE;Ayano KURIBARA;Ikuko KARASAWA and Akira KOJIMA
- 通讯作者:Ikuko KARASAWA and Akira KOJIMA
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KOJIMA Akira其他文献
KOJIMA Akira的其他文献
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