D21C 11/14
Wet combustion
Official title: Wet combustion {; Treatment of pulp liquors without previous evaporation, by oxidation of the liquors remaining at least partially in the liquid phase, e.g. by application or pressure (oxidation of black, green or white liquors D21C11/0057)}
D21C11/14 (Wet combustion) appears on 11 US grants and 6 published applications in this corpus.
Search patents in D21C- Granted patents
- 11
- Published applications
- 6
- Assignees
- 11
- Inventors
- 20
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
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| 1986 | 1 | 0 |
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| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
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| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cooling shield for a liquor injection pipe of a liquor gun, liquor gun system comprising the cooling shield, and method for cooling a liquor injection pipe in a liquor gun system15 Sep 2026US 12,736,217 B2Valmet Corporation
- Method for controlling a chemical recovery boiler and a chemical recovery boiler1 Oct 2024US 12,104,319 B2Valmet Automation Oy
- Direct steam generation, electrical power generator, apparatus and method9 Jun 2020US 10,677,451 B2XDI Holdings, LLC
- Method of recovering pulping chemicals from dissolved ash having a high carbonate content21 Feb 2017US 9,574,303 B2Veolia Water Technologies, Inc.
- System for controlling the flow pattern of a recovery boiler4 Jul 2006US 7,069,866 B2Oy Polyrec AB
- Cooling shield for a liquor injection pipe of a liquor gun, liquor gun system comprising the cooling shield, and method for cooling a liquor injection pipe in a liquor gun system24 Aug 2023US 2023/0266001 A1Valmet Corporation
- Method for controlling a chemical recovery boiler and a chemical recovery boiler23 Feb 2023US 2023/0057366 A1Valmet Automation Oy
- Direct steam generation, electrical power generator, apparatus and method18 Oct 2018US 2018/0299119 A1XDI Holdings, LLC
- Method of recovering pulping chemicals from dissolved ash having a high carbonate content1 Dec 2016US 2016/0348310 A1Veolia Water Technologies, Inc.
- Gasification of bio-oil and alkali containing energy rich aqueous solutions from pulp mills17 Apr 2014US 2014/0102002 A1Chemrec AB
Most cited
By later US patents
- Production of pulp by the soda-anthraquinone process (SAP) with recovery of the cooking chemicals77US 5,595,628 AGrant S.A. · 1997
- Reactor having a discontinuous conduit means between surfaces of a downwardly extending stationary spiral13US 5,171,405 AKamyr, Inc. · 1992
- Wet, pressure, partial oxidation of black liquor5US 4,756,837 ADomtar Inc. · 1988
- Method for wet combustion of organic material4US 4,604,957 ASunds Defibrator AB · 1986
- Treatment of waste paper3US 5,683,590 AECC International Limited · 1997