C22B 21/003
From spent catalysts
Official title: {from spent catalysts}
C22B21/003 (From spent catalysts) appears on 8 US grants and 4 published applications in this corpus.
Search patents in C22B- Granted patents
- 8
- Published applications
- 4
- Assignees
- 8
- Inventors
- 20
- Latest grant
- 24 Mar 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 2 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for recovery of cobalt, ruthenium, and aluminum from spent catalyst24 Mar 2015US 8,986,632 B2Sunshine Kaidi New Energy Group Co., Ltd.
- Method for recovering metals from waste aluminum catalyst24 Mar 2015US 8,986,634 B2
- Method or process for recovering Mo, V, Ni, Co and Al from spent catalysts using ultrasonic assisted leaching with EDTA16 Oct 2012US 8,287,618 B2Kuwait Institute for Scientific Research
- Electrochemical removal of dissociable cyanides10 Jan 2012US 8,093,442 B2Rio Tinto Alcan International Limited
- Method of separately recovering metal values of petroleum refining catalyst29 Aug 1989US 4,861,565 AThe Hall Chemical Company
- Process for recovery of cobalt, ruthenium, and aluminum from spent catalyst25 Dec 2014US 2014/0377151 A1Sunshine Kaidi New Energy Group Co., Ltd.
- Method for recovering metals from waste aluminum catalyst25 Sep 2014US 2014/0286840 A1
- Method or process for recovering mo, v, ni, co and al from spent catalysts using ultrasonic assisted leaching with edta10 May 2012US 2012/0111150 A1Kuwait Institute for Scientific Research
- Electrochemical removal of dissociable cyanides29 Jan 2009US 2009/0030256 A1Alcan International Limited
Most cited
By later US patents
- Method of separately recovering metal values of petroleum refining catalyst26US 4,861,565 AThe Hall Chemical Company · 1989
- Value recovery from spent alumina-base catalyst10US 4,657,745 AChemical & Metal Industries, Inc. · 1987
- Process for recovering metals from catalysts for the hydrodesulfurization of hydrocarbons6US 4,292,282 ASociete Europeenne des Derives du Manganese, en abrege Sedema Societe Anonyme · 1981
- Process for the recovery of valuable metals from spent crude-oil sulfur-extraction catalysts4US 4,474,735 AOutokumpu Oy · 1984
- Process for recovery of cobalt, ruthenium, and aluminum from spent catalyst3US 8,986,632 B2Sunshine Kaidi New Energy Group Co., Ltd. · 2015