C01D 1/22
With carbonates or bicarbonates
Official title: with carbonates or bicarbonates
C01D1/22 (With carbonates or bicarbonates) appears on 22 US grants and 21 published applications in this corpus.
Search patents in C01D- Granted patents
- 22
- Published applications
- 21
- Assignees
- 24
- Inventors
- 62
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 2 | 1 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 1 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 3 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- DHSV scale removal method in the production string17 Mar 2026US 12,577,118 B2Petroleo Brasileiro S.A. - Petrobras
- Process for solubilizing calcium carbonate to obtain a solid compound and an alkaline liquid solution11 Nov 2025US 12,466,733 B2Global Carbon Emissions Solutions, LLC
- Process for treating a sodium carbonate purge7 Oct 2025US 12,434,976 B1Solvay SA
- Process to recover alkali from a metal oxide/hydroxide containing material22 Jul 2025US 12,365,962 B2FPInnovations
- Process for producing a concentrated aqueous sodium hydroxide solution11 Oct 2022US 11,465,907 B2Solvay SA
- High-efficiency method for producing lithium hydroxide from lithium carbonate through process improvement1 Oct 2026US 2026/0296907 A1Korea Institute of Geoscience and Mineral Resources
- Processes for producing alkali compounds using acid gas25 Dec 2025US 2025/0388482 A1Innovator Energy, LLC
- Method for producing high purity lithium carbonate from waste saggar27 Nov 2025US 2025/0361580 A1Koreaseparation Co., Ltd.
- Sequential hydrometalurgical recovery of metal values with sequestered carbon11 Sep 2025US 2025/0282633 A1Negative Emissions Materials, Inc.
- Method for preparing lithium hydroxide by using lithium carbonate and barium compound9 Jan 2025US 2025/0011181 A1Industry Foundation of Chonnam National University
Most cited
By later US patents
- Accelerated process for causticization of Kraft green liquor10US 4,159,922 ANalco Chemical Company · 1979
- Recovering a caustic solution via calcium carbonate crystal aggregates10US 8,728,428 B1Carbon Engineering Limited Partnership · 2014
- Sodium hydroxide production with a calcium carbonate seed crystal8US 5,219,541 ATenneco Minerals Company · 1993
- Recovering a caustic solution via calcium carbonate crystal aggregates8US 9,975,100 B2Carbon Engineering Ltd. · 2018
- Process for causticizing of an aqueous solution containing alkali carbonate7US 4,894,217 AEkono Oy · 1990