C21B 2400/032
Separating slag from liquid
Official title: Separating slag from liquid, e.g. from water, after quenching
C21B2400/032 (Separating slag from liquid) appears on 21 US grants and 12 published applications in this corpus.
Search patents in C21B- Granted patents
- 21
- Published applications
- 12
- Assignees
- 18
- Inventors
- 55
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 2 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 2 |
| 2022 | 0 | 1 |
| 2023 | 3 | 2 |
| 2024 | 0 | 2 |
| 2025 | 0 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process and system for the production of iron nuggets12 May 2026US 12,624,406 B2Carbontec Energy Corporation
- High efficiency processing method and plant for multiphase steel slag5 May 2026US 12,618,118 B2Baoshan Iron & Steel Co., Ltd.
- Process and system for steel and hydrogen production using recycled ferrous scrap and natural gas4 Jul 2023US 11,692,231 B2Palo Alto Research Center Incorporated
- Process and system for steel and hydrogen production using recycled ferrous scrap and natural gas20 Jun 2023US 11,680,299 B2Palo Alto Research Center Incorporated
- Methods for coal combustion product (CCP) recovery and related products14 Mar 2023US 11,603,332 B2Eco Material Technologies IP Inc.
- Direct bath smelting process with fast quench of molten material in hot offgas22 Aug 2024US 2024/0279757 A1Nucor Corporation
- Process and system for the production of iron nuggets6 Jun 2024US 2024/0182993 A1Carbontec Energy Corporation
- Efficient Treatment Method and Apparatus for Multiphase Steel Slag24 Aug 2023US 2023/0265533 A1Baoshan Iron & Steel Co., Ltd.
- Blast furnace slag granulation and waste heat recovery and utilization device and method30 Mar 2023US 2023/0100959 A1Baoshan Iron & Steel Co., Ltd.
- Process and system for steel and hydrogen production using recycled ferrous scrap and natural gas1 Sep 2022US 2022/0275466 A1Palo Alto Research Center Incorporated
Most cited
By later US patents
- Apparatus for dewatering granulated-slag slurry8US 4,204,855 ASIDMAR Maritieme Staalnihverheid N.V. Siderurgie Maritime S.A. · 1980
- Process and apparatus for granulation of slag8US 4,494,971 APaul Wurth S. A. · 1985
- Method for manufacturing crushed sands from blast furnace water granulated slags7US 4,268,295 ANakayama Steel Works, Ltd. · 1981
- Method of dewatering granulated-slag slurry7US 4,289,519 ASIDMAR Maritieme Staalnijverheid NV., Siderurgie Maritime S.A. · 1981
- Molten slag flow rate measuring device and furnace facilities using the same7US 5,694,480 ATsukishima Kikai Co., Ltd. · 1997