C01F 5/32
Preparation of anhydrous magnesium chloride by chlorinating magnesium compounds
C01F5/32 (Preparation of anhydrous magnesium chloride by chlorinating magnesium compounds) appears on 32 US grants and 22 published applications in this corpus.
Search patents in C01F- Granted patents
- 32
- Published applications
- 22
- Assignees
- 24
- Inventors
- 74
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 3 |
| 2018 | 1 | 2 |
| 2019 | 2 | 0 |
| 2020 | 3 | 2 |
| 2021 | 1 | 4 |
| 2022 | 1 | 0 |
| 2023 | 5 | 4 |
| 2024 | 2 | 1 |
| 2025 | 2 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for extraction of minerals based on divalent cations from brine7 Oct 2025US 12,434,192 B2Saudi Water Authority
- System for producing magnesium chloride aqueous solution and system for producing magnesium8 Jul 2025US 12,351,475 B2Mitsubishi Heavy Industries, Ltd.
- Carbon dioxide sequestration with magnesium hydroxide and regeneration of magnesium hydroxide31 Dec 2024US 12,179,148 B2Carbonfree Chemicals Holdings, LLC
- Method for electrochemical transformation of amorphous material to crystalline material2 Jul 2024US 12,024,424 B2UT-Battelle, LLC
- Method and system for extraction of minerals based on divalent cations from brine7 Nov 2023US 11,806,668 B2Saline Water Conversion Corporation
- Method for extracting potassium bicarbonate from mineral mixtures14 May 2026US 2026/0132039 A1Kellium Minerals LLC
- Magnesium chloride purification systems, devices and methods14 May 2026US 2026/0132041 A1
- Method and system for extraction of minerals based on divalent cations from brine8 Jan 2026US 2026/0008014 A1Saudi Water Authority
- Carbon dioxide sequestration with magnesium hydroxide and regeneration of magnesium hydroxide3 Jul 2025US 2025/0214037 A1Carbonfree Chemicals Holdings, LLC
- Carbon dioxide sequestration with magnesium hydroxide and regeneration of magnesium hydroxide11 Jan 2024US 2024/0009622 A1Carbonfree Chemicals Holdings, LLC
Most cited
By later US patents
- Chlorination of impure magnesium chloride melt65US 4,248,839 ANL Industries, Inc. · 1981
- Carbon dioxide sequestration with magnesium hydroxide and regeneration of magnesium hydroxide11US 10,583,394 B2Carbonfree Chemicals Holdings, LLC · 2020
- Processes for preparing alumina and various other products11US 9,382,600 B2Orbite Technologies Inc. · 2016
- Electrolytic magnesium production process9US 5,665,220 AGeneral Motors Corporation · 1997
- Processes for preparing alumina and various other products7US 10,174,402 B2Orbite Technologies Inc. · 2019