C21B 2400/08
Treatment of slags originating from iron or steel processes: with energy recovery
Official title: with energy recovery
C21B2400/08 (Treatment of slags originating from iron or steel processes: with energy recovery) appears on 36 US grants and 24 published applications in this corpus.
Search patents in C21B- Granted patents
- 36
- Published applications
- 24
- Assignees
- 40
- Inventors
- 119
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 2 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 2 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 2 |
| 2017 | 3 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 3 |
| 2024 | 1 | 4 |
| 2025 | 1 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for the cooling and heat recovery from materials at very high temperature9 Jun 2026US 12,649,690 B2Cicsa S.R.L.
- Integrated drying process and device for dry granulated slag and sludge2 Jun 2026US 12,644,161 B2Baoshan Iron & Steel Co., Ltd.
- Method for granulating a metallurgical slag3 Jun 2025US 12,319,983 B2SMS group GmbH
- System and method for delivering fluidized powder based on flue gas carrying waste slag and instant cooling steel slag6 Aug 2024US 12,054,795 B2Qingda Low Carbon Green Hydrogen Industrial Technology Research Institute (Qingdao) Co., Ltd.
- Heat recover apparatus, system and method of using the same24 Jan 2023US 11,560,880 B2Arizona Board of Regents on Behalf of the University of Arizona
- Systematic carbon emissions reduction method for whole process of production and casting3 Sep 2026US 2026/0258513 A1Jiqing Low Carbon Technology (Qinhuangdao) Co., Ltd.
- Processes and systems for molten slag energy extraction and utilization24 Apr 2025US 2025/0129439 A1Senex Technologies LLC
- Processes and systems for molten slag energy extraction and utilization with foam reduction24 Apr 2025US 2025/0129440 A1Molten Solutions LLC
- Heat recovery on steel slag19 Sep 2024US 2024/0309479 A1John Cockerill S.A.
- Cooling apparatus8 Aug 2024US 2024/0263879 A1Material Handling Technology S.R.L.
Most cited
By later US patents
- Method and apparatus for cooling and solidifying red-hot molten blast furnace slag11US 5,820,814 A1998
- Method producing slag ballast9US 4,049,439 ANippon Steel Corporation · 1977
- Process and apparatus for granulating molten slag9US 4,909,837 ANorddeutsche Affinerie Aktiengesellschaft · 1990
- Method for manufacturing crushed sands from blast furnace water granulated slags7US 4,268,295 ANakayama Steel Works, Ltd. · 1981
- Slag waste heat boiler6US 4,050,884 A1977