HEAVY METAL FIXING AGENT FOR USE IN TREATMENT OF ASH, AND ASH TREATMENT METHOD USING SAME

• Main Authors: JOKYOU TOSHIFUMI, SAKANE MASAYUKI, ITOU ICHIROU, MURATA HIROYUKI
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2017
• Subjects: CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS; CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING ORPROTECTING AGAINST HARMFUL CHEMICAL AGENTS; DISPOSAL OF SOLID WASTE; FIRE-FIGHTING; HUMAN NECESSITIES; LIFE-SAVING; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING

A heavy metal fixing agent for use in the treatment of ash, which can be added to ash containing a heavy metal to prevent the corrosion of a metallic part of a reaction vessel, such as a chemical substance addition facility or a kneader, during a treatment for fixing the heavy metal, and therefore can extend the life of a treatment facility and can reduce the cost for maintaining the treatment facility; and a method for treating ash using the aforementioned heavy metal fixing agent for use in the treatment of ash. The heavy metal fixing agent for use in the treatment of ash comprises: a heavy metal fixing agent comprising a phosphoric acid-type fixing agent and an iron salt-type fixing agent; and a metal corrosion inhibitor. In the heavy metal fixing agent for use in the treatment of ash, the metal corrosion inhibitor comprises (A) a quaternary ammonium salt, (B) an organosulfur compound, (C) a polyamine compound and (D) acethylenic alcohol. 本发明为灰处理用重金属固定化剂及使用了该灰处理用重金属固定化剂的灰的处理方法，所述灰处理用重金属固定化剂能够防止向含有重金属的灰中添加来