-
公开(公告)号:US4731187A
公开(公告)日:1988-03-15
申请号:US887945
申请日:1986-07-22
申请人: Masafumi Moriya , Kazuo Hosoda , Akira Nishimura , Takao Imachi
发明人: Masafumi Moriya , Kazuo Hosoda , Akira Nishimura , Takao Imachi
IPC分类号: C01G3/00 , C01G5/00 , C01G7/00 , C01G9/00 , C01G11/00 , C01G13/00 , C01G15/00 , C01G21/00 , C01G28/00 , C01G31/00 , C01G37/00 , C01G55/00 , C02F1/52 , C02F1/56 , C02F1/62 , C22B3/34 , C02F1/54
CPC分类号: C01G55/001 , C01G11/003 , C01G13/003 , C01G15/003 , C01G21/003 , C01G28/001 , C01G3/003 , C01G31/003 , C01G37/003 , C01G5/003 , C01G7/003 , C01G9/003 , C02F1/5236 , C02F1/5272 , C22B3/0031 , Y02P10/234 , Y10S210/912 , Y10S210/913 , Y10S210/914
摘要: A heavy metal can be removed from waste water, in which the metal is contained as ions, by adding to the waste water a metal scavenger together with at least one of sodium monosulfide, sodium polysulfides and sodium hydrogensulfide to form a metal ion containing floc. The resulting floc is then removed from the waste water by filtration. The metal scavenger contains at least one carbodithio group and/or at least one carbodithioate salt group as N-substituents per molecule.
摘要翻译: 通过向废水中加入金属清除剂以及与单硫化钠,多硫化钠和硫氢化钠中的至少一种形成含金属离子的絮凝物,可以从其中含有金属的废水中除去重金属。 然后通过过滤从废水中除去所得絮状物。 金属清除剂每分子含有至少一个碳二硫基和/或至少一个碳二硫酸盐基团作为N-取代基。
-
公开(公告)号:US4670180A
公开(公告)日:1987-06-02
申请号:US853692
申请日:1986-04-18
申请人: Masafumi Moriya , Kazuo Hosoda , Akira Nishimura , Takao Imachi
发明人: Masafumi Moriya , Kazuo Hosoda , Akira Nishimura , Takao Imachi
CPC分类号: C02F1/5236 , C02F1/5272 , C08G73/02 , C08G73/022 , Y10S210/912 , Y10S423/14
摘要: A metal scavenger is composed of an addition product of a polyamine and an epihalohydrin. The addition product contains as substituent or substituents at least one carbodithio group and/or at least one carbodithioate salt group introduced therein by substituting the corresponding number of active hydrogen atom or atoms in the addition product. Metals can be scavenged from waste water by adding the metal scavenger together with at least one of sodium monosulfide, sodium polysulfides and sodium hydrogensulfide.
-
公开(公告)号:US4670160A
公开(公告)日:1987-06-02
申请号:US905977
申请日:1986-09-11
申请人: Masafumi Moriya , Kazuo Hosoda , Akira Nishimura , Takao Imachi
发明人: Masafumi Moriya , Kazuo Hosoda , Akira Nishimura , Takao Imachi
CPC分类号: C02F1/5236 , C02F1/5272 , C08G73/02 , C08G73/022 , Y10S210/912 , Y10S423/14
摘要: A metal scavenger is composed of an addition product of a polyamine and an epihalohydrin. The addition product contains as substituent or substituents at least one carbodithio group and/or at least one carbodithioate salt group introduced therein by substituting the corresponding number of active hydrogen atom or atoms in the addition product. Metals can be scavenged from waste water by adding the metal scavenger together with at least one of sodium monosulfide, sodium polysulfides and sodium hydrogensulfide.
摘要翻译: 金属清除剂由多胺和表卤代醇的加成产物组成。 加成产物通过用相应数目的加成产物中的活性氢原子或原子代替引入至少一个碳二硫基和/或至少一个碳二硫酸盐基团作为取代基或取代基。 通过将金属清除剂与单硫化钠,多硫化钠和硫酸氢钠中的至少一种一起加入,可以从废水中清除金属。
-
-