CA1081150A - Coal purification - Google Patents
Coal purificationInfo
- Publication number
- CA1081150A CA1081150A CA265,057A CA265057A CA1081150A CA 1081150 A CA1081150 A CA 1081150A CA 265057 A CA265057 A CA 265057A CA 1081150 A CA1081150 A CA 1081150A
- Authority
- CA
- Canada
- Prior art keywords
- coal
- solution
- range
- contacting
- carbonaceous material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003245 coal Substances 0.000 title claims abstract description 104
- 238000000746 purification Methods 0.000 title abstract description 8
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 35
- 238000002386 leaching Methods 0.000 claims abstract description 34
- 239000012535 impurity Substances 0.000 claims abstract description 31
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 239000007800 oxidant agent Substances 0.000 claims abstract description 15
- 239000000243 solution Substances 0.000 claims description 42
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 22
- 229910017604 nitric acid Inorganic materials 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 20
- 239000003575 carbonaceous material Substances 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000003570 air Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 4
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 4
- 239000002006 petroleum coke Substances 0.000 claims description 4
- 229960002050 hydrofluoric acid Drugs 0.000 claims 5
- 238000005406 washing Methods 0.000 claims 4
- 238000007493 shaping process Methods 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 10
- 230000001590 oxidative effect Effects 0.000 abstract description 8
- 239000002956 ash Substances 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 239000008367 deionised water Substances 0.000 description 6
- 229910021641 deionized water Inorganic materials 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000003518 caustics Substances 0.000 description 4
- 239000000571 coke Substances 0.000 description 4
- 239000012264 purified product Substances 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000003077 lignite Substances 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- -1 HNO3 Chemical class 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000010306 acid treatment Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/06—Electrodes
- H05B7/08—Electrodes non-consumable
- H05B7/085—Electrodes non-consumable mainly consisting of carbon
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C1/00—Working-up tar
- C10C1/20—Refining by chemical means inorganic or organic compounds
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
- C25C3/125—Anodes based on carbon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Carbon And Carbon Compounds (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Processing Of Solid Wastes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/660,704 US4083940A (en) | 1976-02-23 | 1976-02-23 | Coal purification and electrode formation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1081150A true CA1081150A (en) | 1980-07-08 |
Family
ID=24650631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA265,057A Expired CA1081150A (en) | 1976-02-23 | 1976-11-05 | Coal purification |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4083940A (enExample) |
| CA (1) | CA1081150A (enExample) |
| DE (1) | DE2706536C3 (enExample) |
| FR (1) | FR2343060A1 (enExample) |
| GB (1) | GB1568453A (enExample) |
| PL (1) | PL115877B1 (enExample) |
Families Citing this family (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4169710A (en) * | 1978-03-29 | 1979-10-02 | Chevron Research Company | Process for comminuting and reducing the sulfur and ash content of coal |
| US4297108A (en) * | 1978-05-10 | 1981-10-27 | Polymer Research Corp. Of America | Desulfurization of coal |
| US4329156A (en) * | 1978-08-02 | 1982-05-11 | Othmer Donald F | Desulfurization of coal |
| US4408999A (en) * | 1981-05-11 | 1983-10-11 | Exxon Research And Engineering Co. | Coal and oil shale beneficiation process |
| US4328002A (en) * | 1981-06-15 | 1982-05-04 | Robert Bender | Methods of treating coal to remove sulfur and ash |
| DE3215981A1 (de) * | 1982-04-29 | 1983-11-03 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum herstellen hochreiner ausgangsmaterialien fuer die fertigung von silizium fuer solarzellen nach dem carbothermischen reduktionsverfahren |
| US4468231A (en) * | 1982-05-03 | 1984-08-28 | Exxon Research And Engineering Co. | Cation ion exchange of coal |
| DE3249493T1 (de) * | 1982-05-27 | 1984-09-20 | Otisca Industries Ltd., Syracuse, N.Y. | Verfahren zur Bearbeitung von Kohle |
| US4743271A (en) * | 1983-02-17 | 1988-05-10 | Williams Technologies, Inc. | Process for producing a clean hydrocarbon fuel |
| US4695290A (en) * | 1983-07-26 | 1987-09-22 | Integrated Carbons Corporation | Integrated coal cleaning process with mixed acid regeneration |
| EP0134530A3 (en) * | 1983-07-29 | 1985-09-11 | Japan Australia Process Coal Company | A process for removing mineral inpurities from coals and oil shales |
| US4618346A (en) * | 1984-09-26 | 1986-10-21 | Resource Engineering Incorporated | Deashing process for coal |
| JPS62502952A (ja) * | 1985-02-19 | 1987-11-26 | オーブランド プロプライアタリー リミティド | 炭素構造中に含有される鉱物物質の連続的化学的減少及び除去方法 |
| US4753033A (en) * | 1985-03-24 | 1988-06-28 | Williams Technologies, Inc. | Process for producing a clean hydrocarbon fuel from high calcium coal |
| US4702749A (en) * | 1986-06-24 | 1987-10-27 | Air Products And Chemicals, Inc. | Technique for surface oxidation of activated carbon |
| US4741741A (en) * | 1986-10-17 | 1988-05-03 | The Standard Oil Company | Chemical beneficiation of coal |
| US6231627B1 (en) | 1996-07-08 | 2001-05-15 | Hazen Research, Inc. | Method to reduce oxidative deterioration of bulk materials |
| US5919277A (en) * | 1996-07-08 | 1999-07-06 | Hazen Research, Inc. | Method to reduce oxidative deterioration of bulk materials |
| US5725613A (en) * | 1996-07-08 | 1998-03-10 | Hazen Research, Inc | Method to reduce oxidative deterioration of bulk materials |
| US6422494B1 (en) | 2000-02-03 | 2002-07-23 | Hazen Research, Inc. | Methods of controlling the density and thermal properties of bulk materials |
| US6786941B2 (en) | 2000-06-30 | 2004-09-07 | Hazen Research, Inc. | Methods of controlling the density and thermal properties of bulk materials |
| US8691166B2 (en) * | 2008-01-08 | 2014-04-08 | Carbonxt Group Limited | System and method for activating carbonaceous material |
| US8628707B2 (en) * | 2008-01-08 | 2014-01-14 | Carbonxt Group Limited | System and method for making carbon foam anodes |
| US8617492B2 (en) * | 2008-01-08 | 2013-12-31 | Carbonxt Group Limited | System and method for making low volatile carboneaceous matter with supercritical CO2 |
| US20090172998A1 (en) * | 2008-01-08 | 2009-07-09 | Carbonxt Group Limited | System and method for refining carbonaceous material |
| US20090263311A1 (en) * | 2008-04-17 | 2009-10-22 | Lee Chang H | Method of removing impurities from solids |
| BRPI0905091A2 (pt) * | 2008-09-03 | 2015-06-30 | Tata Steel Ltd | Processo de beneficiamento para produzir carvão limpo de baixo teor de cinzas a partir de carvões de alto teor de cinzas |
| US20100287827A1 (en) * | 2009-05-13 | 2010-11-18 | Chandrashekhar Sonwane | Process for obtaining treated coal and silica from coal containing fly ash |
| US20110031174A1 (en) * | 2009-08-09 | 2011-02-10 | Kun-Yu Liang | Floor water tank filtering device for three-in-one sewers |
| US20110030271A1 (en) * | 2009-08-10 | 2011-02-10 | General Electric Company | Method for removing impurities from coal in a reaction chamber |
| US20110030270A1 (en) * | 2009-08-10 | 2011-02-10 | General Electric Company | Methods for removing impurities from coal including neutralization of a leaching solution |
| US20110030593A1 (en) * | 2009-08-10 | 2011-02-10 | General Electric Company | Method for desulfurizing a fluid and methods for operating a coal combustion system |
| US20110078948A1 (en) | 2009-10-01 | 2011-04-07 | Chandrashekhar Ganpatrao Sonwane | Ash removal from coal: process to avoid large quantities of hydrogen fluoride on-site |
| WO2018075870A1 (en) | 2016-10-21 | 2018-04-26 | Fluidic Inc. | Corrugated fuel electrode |
| US11611115B2 (en) | 2017-12-29 | 2023-03-21 | Form Energy, Inc. | Long life sealed alkaline secondary batteries |
| CN120049075A (zh) | 2018-07-27 | 2025-05-27 | 福恩能源公司 | 用于电化学电池的负电极 |
| WO2020131928A1 (en) * | 2018-12-17 | 2020-06-25 | Virginia Tech Intellectual Properties, Inc. | One-pot process for synthesis of graphene and graphene-derivatives from coal |
| US12294086B2 (en) | 2019-07-26 | 2025-05-06 | Form Energy, Inc. | Low cost metal electrodes |
| AU2023215418A1 (en) * | 2022-02-07 | 2024-08-15 | Form Energy, Inc. | Processes for purifying iron-bearing materials |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1489830A (en) * | 1922-10-17 | 1924-04-08 | Illingworth Carbonization Co | Manufacture of electrodes |
| BE370594A (enExample) * | 1929-11-23 | |||
| US3279935A (en) * | 1963-06-11 | 1966-10-18 | Ashland Oil Refining Company | Oxidation of carbon black |
| US3393978A (en) * | 1965-04-02 | 1968-07-23 | Carbon Company | Deashing of carbonaceous material |
| US3501272A (en) * | 1966-02-28 | 1970-03-17 | Standard Oil Co | Carbon purification process |
-
1976
- 1976-02-23 US US05/660,704 patent/US4083940A/en not_active Expired - Lifetime
- 1976-11-05 CA CA265,057A patent/CA1081150A/en not_active Expired
-
1977
- 1977-02-01 FR FR7702735A patent/FR2343060A1/fr active Granted
- 1977-02-02 GB GB4248/77A patent/GB1568453A/en not_active Expired
- 1977-02-14 DE DE2706536A patent/DE2706536C3/de not_active Expired
- 1977-02-18 PL PL1977196094A patent/PL115877B1/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2343060B1 (enExample) | 1980-02-01 |
| DE2706536A1 (de) | 1977-08-25 |
| PL115877B1 (en) | 1981-05-30 |
| DE2706536B2 (de) | 1980-05-14 |
| FR2343060A1 (fr) | 1977-09-30 |
| GB1568453A (en) | 1980-05-29 |
| DE2706536C3 (de) | 1981-01-22 |
| US4083940A (en) | 1978-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |