基本信息:
- 专利标题： METHOD OF DECOMPOSING ASBESTOS-CONTAINING WASTES
- 专利标题（中）：分解含有ASBESTOS的废物的方法
- 申请号：PCT/FI1997000057 申请日：1997-02-03
- 公开(公告)号：WO1997027902A1 公开(公告)日：1997-08-07
- 发明人： HJA-ENGINEERING OY
- 申请人： HJA-ENGINEERING OY , PUSA, Markku, Pete, Juhani , KARHUMÄKI, Markku, Kalevi , AHONEN, Heikki, Juhani
- 专利权人： HJA-ENGINEERING OY,PUSA, Markku, Pete, Juhani,KARHUMÄKI, Markku, Kalevi,AHONEN, Heikki, Juhani
- 当前专利权人： HJA-ENGINEERING OY,PUSA, Markku, Pete, Juhani,KARHUMÄKI, Markku, Kalevi,AHONEN, Heikki, Juhani
- 优先权： FI960472 19960201
- 主分类号： A62D03/00
- IPC分类号： A62D03/00
摘要：
The invention relates to a method for neutralizing asbestos waste. According to the method, the waste is contacted with an acid capable of dissolving the asbestos, or with a salt thereof. According to the method, a hydrochloric acid solution is used as the acid, containing a suitable potassium salt in an amount of about 0.5 to 10 % based on the amount of the hydrochloric acid, in particular potassium sulphate, potassium chloride, potassium nitrate, potassium carbonate or potassium phosphate, and possibly a small amount of nitric acid and/or phosphoric acid. In order to enhance the dissolution of the asbestos, the waste is first wetted with water which may contain a surface activity reducing agent. The invention also relates to a method for disposing of the asbestos material in acetylene cylinders, whereby the acetylene cylinder is cut in two and the material is removed by hydrostatic pressure. Next, the wetted material is treated with a hydrochloric acid solution. The invention can also advantageously be applied to demolition waste from buildings.
摘要（中）：
本发明涉及一种中和石棉废物的方法。 根据该方法，废物与能够溶解石棉的酸或其盐接触。 根据该方法，使用盐酸溶液作为酸，其含有相对于盐酸的量为约0.5〜10％的合适的钾盐，特别是硫酸钾，氯化钾，硝酸钾，钾 碳酸盐或磷酸钾，以及可能的少量硝酸和/或磷酸。 为了增强石棉的溶解度，首先用可能含有表面活性降低剂的水润湿废物。 本发明还涉及一种在乙炔气瓶中处理石棉材料的方法，由此将乙炔气瓶切成两部分，并通过静水压力除去材料。 接下来，用盐酸溶液处理润湿的材料。 本发明还可以有利地应用于从建筑物中拆除废物。