C22B 15/0047
Flash smelting or converting
Official title: {flash smelting or converting}
C22B15/0047 (Flash smelting or converting) appears on 72 US grants and 45 published applications in this corpus.
Search patents in C22B- Granted patents
- 72
- Published applications
- 45
- Assignees
- 34
- Inventors
- 159
- Latest grant
- 15 Nov 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 2 | 3 |
| 2005 | 3 | 2 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 3 | 4 |
| 2010 | 2 | 4 |
| 2011 | 2 | 3 |
| 2012 | 3 | 3 |
| 2013 | 2 | 4 |
| 2014 | 3 | 0 |
| 2015 | 3 | 4 |
| 2016 | 2 | 0 |
| 2017 | 1 | 2 |
| 2018 | 4 | 3 |
| 2019 | 3 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Concentrate burner of copper smelting furnace and operation method of copper smelting furnace15 Nov 2022US 11,499,781 B2Pan Pacific Copper Co., Ltd.
- Raw material supply device, flash smelting furnace and nozzle member24 Nov 2020US 10,845,123 B2Pan Pacific Copper Co., Ltd.
- Feed mixture distribution device14 Jul 2020US 10,710,035 B1Outotec (Finland) Oy
- Method and arrangement for feeding fine-grained matter to a concentrate or matte burner of a suspension smelting furnace22 Oct 2019US 10,451,350 B2Outotec (Finland) Oy
- Method for refining sulfidic copper concentrate8 Oct 2019US 10,435,769 B2Outotec (Finland) Oy
- Operation method of copper smelting24 Sep 2026US 2026/0286464 A1JX Advanced Metals Corporation
- Flash smelting furnace, flash smelting furnace operation method, and metal smelting method13 Aug 2026US 2026/0234750 A1JX Advanced Metals Corporation
- Smelting optimization method and device of copper-containing concentrate24 Oct 2024US 2024/0352554 A1Tongling University
- Mineral processing method10 Nov 2022US 2022/0355313 A1Kyushu University, National University Corporation
- Concentrate burner of copper smelting furnace and operation method of copper smelting furnace25 Mar 2021US 2021/0088283 A1Pan Pacific Copper Co., Ltd.
Most cited
By later US patents
- Method for feeding and directing reaction gas and solids into a smelting furnace and a multiadjustable burner designed for said purpose23US 6,238,457 B1Outokumpu Oyj · 2001
- Enhanced phase interaction at the interface of molten slag and blister copper, and an apparatus for promoting same19US 6,231,641 B1Kennecott Utah Copper Corporation · 2001
- Continuous process for copper smelting and converting in a single furnace by oxygen injection15US 4,470,845 ANewmont Mining Corporation · 1984
- Equipment for the even feed of pulverous material to a concentrate burner of suspension smelting furnace11US 6,565,799 B1Outokumpu Oyj · 2003
- Flash smelting process10US 4,615,729 AInco Limited · 1986