Title:
HEAVY METAL TREATMENT AGENT, AND METHOD FOR TREATING INCINERATED ASH AND WASTEWATER USING SAME
Document Type and Number:
WIPO Patent Application WO/2023/277136
Kind Code:
A1
Abstract:
Provided are: a novel heavy metal treatment agent having improved performance for treating elements of groups 6-16 of the periodic table or compounds thereof, including treatment of incinerated ash and wastewater, etc.; and a method for treating incinerated ash and wastewater using the heavy metal treatment agent. This heavy metal treatment agent includes at least one dithiocarbamate among amine compounds represented by any of formulas (I) to (III). Formula (I) (In the formula, m represents an integer of 3-6.) Formula (II) (In the formula, each of the n X independently represents a hydrogen atom or a 2-aminoethyl group, at least one X being a 2-aminoethyl group, n represents an integer of 1-3, and the total number of nitrogen atoms is 4-8.) Formula (III) (In the formula, o represents an integer of 0-2, p represents 0 or 1, q represents 0 or 1, r represents an integer of 0-3, the sum of o, p, and r is 1 or greater, and the total number of nitrogen atoms is 3-7.)
Inventors:
TERADA KAZUHIRO (JP)
TAKAMATSU YUICHIRO (JP)
KAWAI KOJI (JP)
TAKAMATSU YUICHIRO (JP)
KAWAI KOJI (JP)
Application Number:
PCT/JP2022/026239
Publication Date:
January 05, 2023
Filing Date:
June 30, 2022
Export Citation:
Assignee:
MIYOSHI YUSHI KK (JP)
International Classes:
C09K3/00
Foreign References:
| JP2019076840A | 2019-05-23 | |||
| JP2018192462A | 2018-12-06 | |||
| JP2001221421A | 2001-08-17 | |||
| JPH0975892A | 1997-03-25 | |||
| JPH03123760A | 1991-05-27 | |||
| JPH0679254A | 1994-03-22 | |||
| JPH08224560A | 1996-09-03 |
Other References:
ANONYMOUS: "Tetraethylenepentamine", 31 October 2012 (2012-10-31), pages 678 - 693, XP093018860, Retrieved from the Internet [retrieved on 20230130]
TAKAGI TOSHIHARU, MAKOTO AIURA, KEIZO NAKAMURA, NAOTO KAWAMURA: "Separation and Identification of All Components in Polyamines", 1 January 1970 (1970-01-01), pages 10 - 19, XP093018859, Retrieved from the Internet [retrieved on 20230130]
TAKAGI TOSHIHARU, MAKOTO AIURA, KEIZO NAKAMURA, NAOTO KAWAMURA: "Separation and Identification of All Components in Polyamines", 1 January 1970 (1970-01-01), pages 10 - 19, XP093018859, Retrieved from the Internet
Attorney, Agent or Firm:
USHIKI & ASSOCIATES (JP)
Download PDF: