C01F 7/0606
Making-up the alkali hydroxide solution from recycled spent liquor
C01F7/0606 (Making-up the alkali hydroxide solution from recycled spent liquor) appears on 25 US grants and 18 published applications in this corpus.
Search patents in C01F- Granted patents
- 25
- Published applications
- 18
- Assignees
- 15
- Inventors
- 42
- Latest grant
- 5 Jun 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 4 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 2 | 2 |
| 2009 | 0 | 2 |
| 2010 | 2 | 2 |
| 2011 | 2 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 2 | 0 |
| 2017 | 0 | 2 |
| 2018 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Surfactant based small molecules for reducing aluminosilicate scale in the Bayer process5 Jun 2018US 9,988,282 B2Ecolab USA Inc.
- Reducing aluminosilicate scale in the Bayer process17 Apr 2018US 9,944,534 B2Ecolab USA Inc.
- Reducing aluminosilicate scale in the bayer process8 Nov 2016US 9,487,408 B2Nalco Company
- Surfactant based small molecules for reducing aluminosilicate scale in the bayer process16 Aug 2016US 9,416,020 B2Nalco Company
- Compositions for preventing or reducing aluminosilicate scale in industrial processes29 Nov 2011US 8,067,507 B2Cytec Technology Corp.
- Surfactant Based Small Molecules for Reducing Aluminosilicate Scale in the Bayer Process9 Mar 2017US 2017/0066656 A1Nalco Company
- Reducing Aluminosilicate Scale in the Bayer Process23 Feb 2017US 2017/0050861 A1Nalco Company
- Surfactant based small molecules for reducing aluminosilicate scale in the bayer process8 May 2014US 2014/0124451 A1Nalco Company
- Mitigation and control of aluminosilicate scale through a novel feeding strategy of the inhibitor25 Jul 2013US 2013/0189529 A1Nalco Company
- Reducing aluminosilicate scale in the bayer process14 Jun 2012US 2012/0148462 A1Nalco Company
Most cited
By later US patents
- Method for the alteration of siliceous materials from bayer process liquors30US 5,415,782 ANalco Chemical Company · 1995
- Method of preventing or reducing aluminosilicate scale in a bayer process30US 6,814,873 B2Cytec Technology Corp. · 2004
- Method for transferring heat between process liquor streams18US 5,027,891 AAlcan International Limited · 1991
- Method for the alteration of siliceous materials from Bayer process liquids17US 5,314,626 ANalco Chemical Company · 1994
- Method and compositions for preventing or reducing aluminosilicate scale in alkaline industrial processes12US 7,390,415 B2Cytec Technology Corp. · 2008