DE19939382A1 - Removing metallic mercury from hot pyrolysis gases produced from waste materials comprises adding metal sulfides to gases, mixing and removing solid reaction products on fine dust filters - Google Patents
Removing metallic mercury from hot pyrolysis gases produced from waste materials comprises adding metal sulfides to gases, mixing and removing solid reaction products on fine dust filtersInfo
- Publication number
- DE19939382A1 DE19939382A1 DE1999139382 DE19939382A DE19939382A1 DE 19939382 A1 DE19939382 A1 DE 19939382A1 DE 1999139382 DE1999139382 DE 1999139382 DE 19939382 A DE19939382 A DE 19939382A DE 19939382 A1 DE19939382 A1 DE 19939382A1
- Authority
- DE
- Germany
- Prior art keywords
- sulfide
- metal sulfides
- mercury
- metallic mercury
- sulfur
- 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.)
- Ceased
Links
- 229910052976 metal sulfide Inorganic materials 0.000 title claims abstract description 16
- 239000007789 gas Substances 0.000 title claims abstract description 15
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 15
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229940008718 metallic mercury Drugs 0.000 title claims abstract description 9
- 239000007787 solid Substances 0.000 title claims abstract description 5
- 239000007795 chemical reaction product Substances 0.000 title claims abstract description 4
- 239000000428 dust Substances 0.000 title claims abstract description 4
- 239000002699 waste material Substances 0.000 title claims abstract description 4
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 3
- QXKXDIKCIPXUPL-UHFFFAOYSA-N sulfanylidenemercury Chemical compound [Hg]=S QXKXDIKCIPXUPL-UHFFFAOYSA-N 0.000 claims abstract 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 11
- 229910052717 sulfur Inorganic materials 0.000 claims description 11
- 239000011593 sulfur Substances 0.000 claims description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000571 coke Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 claims description 4
- KAEAMHPPLLJBKF-UHFFFAOYSA-N iron(3+) sulfide Chemical compound [S-2].[S-2].[S-2].[Fe+3].[Fe+3] KAEAMHPPLLJBKF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 4
- -1 CaS Chemical compound 0.000 claims description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- 239000000969 carrier Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical class [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 2
- 229910021536 Zeolite Inorganic materials 0.000 claims description 2
- 239000005083 Zinc sulfide Substances 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 239000011449 brick Substances 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000000292 calcium oxide Substances 0.000 claims description 2
- 235000012255 calcium oxide Nutrition 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- 239000010459 dolomite Substances 0.000 claims description 2
- 229910000514 dolomite Inorganic materials 0.000 claims description 2
- 229910052949 galena Inorganic materials 0.000 claims description 2
- 229910052981 lead sulfide Inorganic materials 0.000 claims description 2
- 229940056932 lead sulfide Drugs 0.000 claims description 2
- 229910052950 sphalerite Inorganic materials 0.000 claims description 2
- 239000010457 zeolite Substances 0.000 claims description 2
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims 2
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 claims 1
- 235000017557 sodium bicarbonate Nutrition 0.000 claims 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- 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 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052955 covellite Inorganic materials 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/64—Heavy metals or compounds thereof, e.g. mercury
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/003—Arrangements of devices for treating smoke or fumes for supplying chemicals to fumes, e.g. using injection devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/60—Heavy metals or heavy metal compounds
- B01D2257/602—Mercury or mercury compounds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/60—Heavy metals; Compounds thereof
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Gas Separation By Absorption (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Abscheidung von me tallischem Quecksilber aus heißen Prolysegasen von Abfallstoffen.The invention relates to a method and an apparatus for separating me metallic mercury from hot waste gases from waste materials.
Nach der Lehre der Hauptanmeldung P 199 36 930.5 werden zur Abscheidung von metallischem Quecksilber dem Pyrolysegas Schwefel, Schwefel-abgebende Stoffe, mit Schwefel beaufschlagte Aktivkohlen oder Herdofenkokse oder Schwefel auf an organischen Trägern zugesetzt und die entstehenden festen Reaktionsprodukte an Feinstaubfiltern abgeschieden.According to the teaching of the main application P 199 36 930.5 for the separation of metallic mercury the pyrolysis gas sulfur, sulfur-releasing substances, activated carbon or hearth furnace coke or sulfur on added organic carriers and the resulting solid reaction products Fine dust filters separated.
Bei Zusatz von Schwefel in jeglicher Form in das heiße Pyrolysegas kann dieser anteilig auch mit Bestandteilen des Pyrolysegases reagieren. Damit entsteht ein Mehrverbrauch an Schwefel.If sulfur is added to the hot pyrolysis gas in any form, it can partly react with components of the pyrolysis gas. This creates a Increased consumption of sulfur.
In Weiterbildung des Gegenstandes der Hauptanmeldung wird deshalb erfindungs gemäß vorgeschlagen, anstelle Schwefel Metallsulfide einzusetzen.In further training of the subject of the main application is therefore fiction proposed to use metal sulfides instead of sulfur.
Es wurde gefunden, daß bei Verwendung von Metallsulfiden die Reaktionen mit den Inhaltsstoffen des Pyrolysegases unterbleiben.It has been found that when using metal sulfides the reactions with the ingredients of the pyrolysis gas.
Als Metallsulfide werden bevorzugt Kupfersulfid, CuS, Zinksulfid, ZnS, Bleisulfid, PbS, Eisen(II)-Sulfid, FeS, Eisen(III)-Sulfid, Fe2S3, Kupferkies Cu2SxFe2S3, und/oder Buntkupfererz, 3Cu2SxFe2S3, eingesetzt. Preferred metal sulfides are copper sulfide, CuS, zinc sulfide, ZnS, lead sulfide, PbS, iron (II) sulfide, FeS, iron (III) sulfide, Fe2S3, copper gravel Cu2SxFe2S3, and / or colored copper ore, 3Cu2SxFe2S3.
Die festen Metallsulfide werden als Pulver eingesetzt. Geeignet sind Korngrößen von 1 bis 200 µm, vorzugsweise von 1 bis 100 µm, insbesondere < 50 µm. Es kön nen jedoch auch Granulate verwendet werden oder Kombinationen von Metallsulfi den mit anorganischen Trägern, zu denen in diesem Falle auch die Aktivkohlen und Herdofenkokse gerechnet werden.The solid metal sulfides are used as powders. Grain sizes are suitable from 1 to 200 µm, preferably from 1 to 100 µm, in particular <50 µm. It can However, granules or combinations of metal sulfi can also be used with inorganic carriers, to which in this case also the activated carbons and Hearth furnace coke can be expected.
Entsprechend der Hauptanmeldung werden in einer vorteilhaften Ausführung der Erfindung Gemische aus Metallsulfiden und basischen Stoffen verwendet. Zu die sen zählen Calciumhydroxid, Branntkalk, Calciumcarbonat, Soda, Natriumhydro gencarbonat, Dolomit und/oder Natriumhydroxid. Diese Gemische sind bevorzugt Pulvergemische. Es lassen sich jedoch auch Suspensionen der basischen Stoffe und der Metallsulfide verwenden, insbesondere im Falle von Calciumhydroxid und Natriumhydroxid.According to the main application, the Invention mixtures of metal sulfides and basic substances used. To the Sen count calcium hydroxide, quicklime, calcium carbonate, soda, sodium hydro gene carbonate, dolomite and / or sodium hydroxide. These mixtures are preferred Powder mixtures. However, suspensions of the basic substances can also be used and the metal sulfides, especially in the case of calcium hydroxide and Sodium hydroxide.
Die Metallsulfide können in einem weiten Temperaturbereich eingesetzt werden. Entscheidend ist, daß der Taupunkt des Pyrolysegases nicht unterschritten wird. Geeignete Temperaturbereiche reichen von 200 bis 550°C, vorzugsweise von 350 bis 550°C. Ein besonders bevorzugter Bereich reicht von 450 bis 550°C, dem Tem peraturbereich des aus der Pyrolysevorrichtung kommenden Gases.The metal sulfides can be used in a wide temperature range. It is crucial that the dew point of the pyrolysis gas is not fallen below. Suitable temperature ranges are from 200 to 550 ° C, preferably from 350 up to 550 ° C. A particularly preferred range is from 450 to 550 ° C, the tem temperature range of the gas coming from the pyrolysis device.
Zu den Metallsulfid-Mengen ist festzustellen, daß sich diese nach der gewünschten Abscheidung von Quecksilber richten. Mehrfachstöchiometrische Mengen können bei den benötigten absolut geringen Mengen ohne Probleme eingesetzt werden.Regarding the amounts of metal sulfide, it should be noted that these vary according to the desired Straighten mercury separation. Multiple stoichiometric amounts can can be used with the absolutely small quantities required without any problems.
Im Rahmen der Erfindung liegt es auch die Metallsulfide in Kombination mit den in der Hauptanmmeldung aufgeführten Stoffe einzusetzen. Dies betrifft Gemische mit Schwefel, Schwefel auf anorganischen Trägern, Schwefel-abgebenden Substan zen, mit Schwefel dotierte Aktivkohlen, Herdofenkokse, Zeolithe, Bentonite, Trasse, Ziegelmehl und/oder Aluminiumoxide.In the context of the invention, it is also the metal sulfides in combination with the in substances listed in the main application. This affects mixtures with Sulfur, sulfur on inorganic supports, sulfur-releasing substance zen, sulfur-doped activated carbon, hearth furnace coke, zeolite, bentonite, route, Brick flour and / or aluminum oxides.
Mit den Metallsulfiden kann metallisches Quecksilber einfach und mit hohen Ab scheidegraden aus Pyrolysegasen abgeschieden werden.With the metal sulfides, metallic mercury can be easily and with high ab degrees of separation can be separated from pyrolysis gases.
Claims (7)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1999136930 DE19936930A1 (en) | 1999-08-19 | 1999-08-05 | Mercury removed from incinerated waste by combination with sulfur and filtration above dew point temperature of pyrolysis gases |
| DE1999139382 DE19939382A1 (en) | 1999-08-05 | 1999-08-19 | Removing metallic mercury from hot pyrolysis gases produced from waste materials comprises adding metal sulfides to gases, mixing and removing solid reaction products on fine dust filters |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1999136930 DE19936930A1 (en) | 1999-08-19 | 1999-08-05 | Mercury removed from incinerated waste by combination with sulfur and filtration above dew point temperature of pyrolysis gases |
| DE1999139382 DE19939382A1 (en) | 1999-08-05 | 1999-08-19 | Removing metallic mercury from hot pyrolysis gases produced from waste materials comprises adding metal sulfides to gases, mixing and removing solid reaction products on fine dust filters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19939382A1 true DE19939382A1 (en) | 2001-04-19 |
Family
ID=26054500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1999139382 Ceased DE19939382A1 (en) | 1999-08-05 | 1999-08-19 | Removing metallic mercury from hot pyrolysis gases produced from waste materials comprises adding metal sulfides to gases, mixing and removing solid reaction products on fine dust filters |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19939382A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005107927A2 (en) | 2004-04-29 | 2005-11-17 | Solucorp Industries, Ltd. | Air pollution control |
| WO2010002444A3 (en) * | 2008-07-03 | 2010-09-02 | Corning Incorporated | Sorbent comprising activated carbon particles, sulfur and metal catalyst |
| CN106268625A (en) * | 2016-09-30 | 2017-01-04 | 南京信息工程大学 | Oxalic acid modification is given up brick, composite based on this useless brick and the method by its adsorbed water body heavy metal |
| CN106311280A (en) * | 2016-08-31 | 2017-01-11 | 西安向阳航天材料股份有限公司 | Copper sulfide containing mercury removal agent and preparation method thereof |
| CN115400725A (en) * | 2022-08-18 | 2022-11-29 | 中南大学 | A kind of porous clay-based modified biochar composite material and its preparation method and application |
| CN119236640A (en) * | 2024-08-29 | 2025-01-03 | 江苏省环境工程技术有限公司 | A high-temperature demercuration agent for metal copper sulfide, preparation method and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4764219A (en) * | 1986-10-27 | 1988-08-16 | Mobil Oil Corporation | Clean up and passivation of mercury in gas liquefaction plants |
| US5110480A (en) * | 1990-07-05 | 1992-05-05 | Mobil Oil Corporation | On-line rejuvenation of spent absorbents |
| US5190908A (en) * | 1991-06-24 | 1993-03-02 | Mobil Oil Corporation | Racked bed for removal of residual mercury from gaseous hydrocarbons |
| US5350728A (en) * | 1990-10-30 | 1994-09-27 | Institut Francais Du Petrole And Europeene De Retraitment De Catalyseurs (Eurecat) | Method of preparing a solid mass for mercury recovery |
| WO1994022563A1 (en) * | 1993-04-06 | 1994-10-13 | Shell Oil Company | Volatile metals capture from gazeous streams |
| EP0496563B1 (en) * | 1991-01-22 | 1996-08-28 | Mobil Oil Corporation | Simultaneous removal of residual impurities and moisture from a gas |
| DE19745191A1 (en) * | 1997-10-13 | 1999-04-15 | Ftu Gmbh Forschung Und Tech En | Material for purifying gas to remove mercury and other pollutants |
-
1999
- 1999-08-19 DE DE1999139382 patent/DE19939382A1/en not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4764219A (en) * | 1986-10-27 | 1988-08-16 | Mobil Oil Corporation | Clean up and passivation of mercury in gas liquefaction plants |
| US5110480A (en) * | 1990-07-05 | 1992-05-05 | Mobil Oil Corporation | On-line rejuvenation of spent absorbents |
| US5350728A (en) * | 1990-10-30 | 1994-09-27 | Institut Francais Du Petrole And Europeene De Retraitment De Catalyseurs (Eurecat) | Method of preparing a solid mass for mercury recovery |
| EP0496563B1 (en) * | 1991-01-22 | 1996-08-28 | Mobil Oil Corporation | Simultaneous removal of residual impurities and moisture from a gas |
| US5190908A (en) * | 1991-06-24 | 1993-03-02 | Mobil Oil Corporation | Racked bed for removal of residual mercury from gaseous hydrocarbons |
| WO1994022563A1 (en) * | 1993-04-06 | 1994-10-13 | Shell Oil Company | Volatile metals capture from gazeous streams |
| DE19745191A1 (en) * | 1997-10-13 | 1999-04-15 | Ftu Gmbh Forschung Und Tech En | Material for purifying gas to remove mercury and other pollutants |
Non-Patent Citations (2)
| Title |
|---|
| Derwent Abstracts: Ref. 1188W/07 zu JP 75001-477 * |
| Ref. 87-268022/38 zu JP 62186-925-A * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005107927A2 (en) | 2004-04-29 | 2005-11-17 | Solucorp Industries, Ltd. | Air pollution control |
| EP1755771A4 (en) * | 2004-04-29 | 2007-12-26 | Solucorp Ind Ltd | Air pollution control |
| WO2010002444A3 (en) * | 2008-07-03 | 2010-09-02 | Corning Incorporated | Sorbent comprising activated carbon particles, sulfur and metal catalyst |
| US8691722B2 (en) | 2008-07-03 | 2014-04-08 | Corning Incorporated | Sorbent comprising activated carbon particles, sulfur and metal catalyst |
| CN106311280A (en) * | 2016-08-31 | 2017-01-11 | 西安向阳航天材料股份有限公司 | Copper sulfide containing mercury removal agent and preparation method thereof |
| CN106268625A (en) * | 2016-09-30 | 2017-01-04 | 南京信息工程大学 | Oxalic acid modification is given up brick, composite based on this useless brick and the method by its adsorbed water body heavy metal |
| CN106268625B (en) * | 2016-09-30 | 2018-09-25 | 南京信息工程大学 | The useless brick of oxalic acid modification, the composite material for the brick that given up based on this and the method with its adsorbed water body heavy metal |
| CN115400725A (en) * | 2022-08-18 | 2022-11-29 | 中南大学 | A kind of porous clay-based modified biochar composite material and its preparation method and application |
| CN119236640A (en) * | 2024-08-29 | 2025-01-03 | 江苏省环境工程技术有限公司 | A high-temperature demercuration agent for metal copper sulfide, preparation method and application thereof |
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