发明授权
- 专利标题： Controlled delivery of corrosion inhibitors for silver recovery cartridges
- 专利标题（中）： 银回收盒的防腐蚀剂的控制输送
-
申请号： US942477申请日： 1978-09-15
-
公开(公告)号： US4156604A公开(公告)日： 1979-05-29
- 发明人: Richard S. Fisch , Norman Newman
- 申请人： Richard S. Fisch , Norman Newman
- 申请人地址： MN St. Paul
- 专利权人： Minnesota Mining and Manufacturing Company
- 当前专利权人： Minnesota Mining and Manufacturing Company
- 当前专利权人地址： MN St. Paul
- 主分类号： C02F1/62
- IPC分类号： C02F1/62 ; C22B11/00 ; G03C5/395 ; C22B11/04
摘要：
A method for controlled delivery of corrosion inhibitors to a silver containing solution in a silver recovery device which utilizes a metallic fill for electron exchange. The method involves forming a structure of polyurethane foam within which a corrosion inhibitor is incorporated and placing the structure in the silver recovery device.
公开/授权文献
- US6036566A Method of fabricating flat FED screens 公开/授权日：2000-03-14
信息查询
