C01F 7/306
Thermal decomposition of hydrated chlorides
Official title: Thermal decomposition of hydrated chlorides, e.g. of aluminium trichloride hexahydrate
C01F7/306 (Thermal decomposition of hydrated chlorides) appears on 37 US grants and 50 published applications in this corpus.
Search patents in C01F- Granted patents
- 37
- Published applications
- 50
- Assignees
- 41
- Inventors
- 129
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 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 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 2 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 6 |
| 2010 | 1 | 1 |
| 2011 | 2 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 2 | 10 |
| 2016 | 4 | 4 |
| 2017 | 4 | 3 |
| 2018 | 3 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 1 |
| 2022 | 0 | 2 |
| 2023 | 2 | 2 |
| 2024 | 0 | 2 |
| 2025 | 0 | 2 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for producing alumina and a lithium salt17 Mar 2026US 12,577,115 B2Tianqi Lithium Kwinana Pty Ltd
- High purity aluminum oxide via electrodialysis5 Sep 2023US 11,746,021 B2Nextchem S.P.A.
- Process and plant for thermal decomposition of aluminium chloride hydrate into aluminium oxide28 Feb 2023US 11,591,233 B2Metso Outotec Finland Oy
- Aluminum oxide production method17 Jul 2018US 10,023,472 B2United Company RUSAL Engineering and Technology Centre LLC
- Alumina and carbonate production method from AI-rich materials with integrated CO2 utilization8 May 2018US 9,963,352 B2Nordic Mining ASA
- Production of high purity alumina and/or smelter-grade alumina3 Sep 2026US 2026/0257933 A1Andromeda Technologies Holdings Pty Ltd
- A method for producing a doped aluminous material20 Aug 2026US 2026/0242232 A1Lava Blue Ltd
- Process for manufacturing oxides13 Aug 2026US 2026/0234007 A1Evonik Operations GmbH
- A method for the preparation of alumina13 Aug 2026US 2026/0234017 A1Playa One Pty Ltd
- Alumina porous material and its preparation and application25 Jun 2026US 2026/0175210 A1China Petroleum & Chemical Corporation
Most cited
By later US patents
- Process for the preparation of pure aluminum oxide25US 4,224,287 AVEB Mansfeld Kombinat Wilhelm Pieck · 1980
- Production of high purity alumina24US 4,634,581 AAtlantic Richfield Company · 1987
- Process for obtaining pure alumina by the hydrochloric attack of aluminous ores and extraction of the impurities by means of a sulphuric treatment23US 4,237,102 AAluminum Pechiney · 1980
- Process for thermal decomposition of aluminum chloride hydrates by indirect heat22US 4,091,085 AAluminum Pechiney · 1978
- Process for thermal decomposition of aluminum chloride hexahydrate21US 4,080,437 AAluminum Pechiney · 1978