C01F 7/144
From aqueous aluminate solutions by precipitation due to cooling
Official title: from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process
C01F7/144 (From aqueous aluminate solutions by precipitation due to cooling) appears on 120 US grants and 56 published applications in this corpus.
Search patents in C01F- Granted patents
- 120
- Published applications
- 56
- Assignees
- 55
- Inventors
- 206
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 9 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 9 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 3 | 3 |
| 2004 | 0 | 1 |
| 2005 | 3 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 4 |
| 2008 | 1 | 3 |
| 2009 | 0 | 4 |
| 2010 | 4 | 1 |
| 2011 | 4 | 5 |
| 2012 | 4 | 4 |
| 2013 | 2 | 5 |
| 2014 | 4 | 5 |
| 2015 | 5 | 2 |
| 2016 | 2 | 2 |
| 2017 | 4 | 4 |
| 2018 | 3 | 2 |
| 2019 | 4 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 2 | 2 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat exchanger3 Feb 2026US 12,540,775 B2
- Bayer process11 Jun 2024US 12,006,225 B2Rio Tinto Alcan International Limited
- Heat exchanger4 Jun 2024US 12,000,656 B2
- Recovery of mining processing product using boronic acid-containing polymers28 Dec 2021US 11,208,332 B2Ecolab USA Inc.
- Alternative additives to enhance slurry dewatering29 Oct 2019US 10,457,584 B2Ecolab USA Inc.
- Method for recovering lithium from lithium-salt-containing aqueous solution6 Feb 2025US 2025/0043391 A1Asaka Riken Co., Ltd.
- Bayer Process22 Aug 2024US 2024/0279075 A1Rio Tinto AIcan International Limited
- Heat Exchanger22 Aug 2024US 2024/0280323 A1
- Bayer Process14 Jan 2021US 2021/0009435 A1Rio Tinto Alcan International Limited
- Heat Exchanger10 Sep 2020US 2020/0284514 A1
Most cited
By later US patents
- Reinforcing aluminum-based filler and rubber composition comprising such a filter55US 6,610,261 B1Compagnie Generale des Etablissements Michelin - Michelin & Cie · 2003
- Process for continuous crystallization46US 4,332,592 A1982
- Coarsening of partially calcined alumina dust33US 4,051,222 AAlcan Research and Development Limited · 1977
- Use of surfactants in alumina precipitation in the bayer process25US 4,737,352 ANalco Chemical Company · 1988
- Process for the manufacture of coarse aluminum hydroxide23US 4,234,559 ASwiss Aluminium Ltd. · 1980