WO2005077557A1 - 飛灰の前処理方法 - Google Patents
飛灰の前処理方法 Download PDFInfo
- Publication number
- WO2005077557A1 WO2005077557A1 PCT/JP2004/011081 JP2004011081W WO2005077557A1 WO 2005077557 A1 WO2005077557 A1 WO 2005077557A1 JP 2004011081 W JP2004011081 W JP 2004011081W WO 2005077557 A1 WO2005077557 A1 WO 2005077557A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fly ash
- particle size
- pulverized
- ball
- measured
- Prior art date
Links
- 239000010881 fly ash Substances 0.000 title claims abstract description 125
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000002245 particle Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000009826 distribution Methods 0.000 claims description 18
- 238000000227 grinding Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 13
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 12
- 229910052725 zinc Inorganic materials 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 229910052793 cadmium Inorganic materials 0.000 claims description 9
- 238000002203 pretreatment Methods 0.000 claims description 9
- 229910052745 lead Inorganic materials 0.000 claims description 8
- 229910052731 fluorine Inorganic materials 0.000 claims description 7
- 229910052785 arsenic Inorganic materials 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 6
- 229910052711 selenium Inorganic materials 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 238000011282 treatment Methods 0.000 abstract description 32
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 26
- 238000010298 pulverizing process Methods 0.000 abstract description 23
- 239000007788 liquid Substances 0.000 abstract description 19
- 238000010828 elution Methods 0.000 abstract description 10
- 230000005764 inhibitory process Effects 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 description 21
- 239000002002 slurry Substances 0.000 description 18
- 239000002253 acid Substances 0.000 description 15
- 238000000926 separation method Methods 0.000 description 14
- 239000011701 zinc Substances 0.000 description 11
- 239000003513 alkali Substances 0.000 description 10
- 239000002956 ash Substances 0.000 description 10
- 239000011133 lead Substances 0.000 description 10
- 239000010949 copper Substances 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 8
- 239000012153 distilled water Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000004056 waste incineration Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 238000010303 mechanochemical reaction Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000001238 wet grinding Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000000975 co-precipitation Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/04—General arrangement of separating plant, e.g. flow sheets specially adapted for furnace residues, smeltings, or foundry slags
Definitions
- the present invention is intended for fly ash collected from combustion exhaust gas at the time of incineration of municipal waste or the like, or fly ash collected from exhaust gas generated at the time of melting ash or dust during incineration. It relates to the processing method performed.
- Waste discharged from general establishments and households is referred to as “municipal waste” or “general waste”. These are collected at municipal waste incineration facilities, industrial waste incineration plants, etc. and disposed of by incineration. It is. At that time, incineration ash and fly ash generated from the incinerator are subjected to intermediate treatment such as chemical treatment, melting treatment, cement kiln treatment, etc., and deposited at the final disposal site. In addition, fly ash contains a large amount of heavy metals such as Zn, Pb, Cu, and Cd as well as CI, Na, and Ca, and fly ash has been effectively reused as a resource. I have.
- JP-A-7-109533 discloses that fly ash is suspended in water in a tank, and acid or alkali is added to the suspension to adjust the pH to an appropriate value in an alkaline range.
- a method of precipitating heavy metals in ash as hydroxide and recovering the precipitate is disclosed.
- the present applicant also discloses the following method for recovering heavy metals and the like from fly ash by a wet treatment method. That is, Japanese Patent Application Laid-Open No. 8-117724 discloses a method in which fly ash slurried is adjusted to PH3 or less to separate lead, and then neutralized to separate zinc and copper.
- JP-A-8-141539 discloses a method of neutralizing sludge fly ash, adjusting the pH to 3 or less to separate lead, and then neutralizing again to separate zinc and copper. It has been disclosed.
- Japanese Patent Application Laid-Open No. 2001-113242 discloses a method in which a fly ash slurried with a mineral acid is neutralized and separated into a heavy metal-containing precipitate and a salt-containing filtrate.
- JP-A-2001-348627 discloses that fly ash is leached with alkali. After that, a method is disclosed in which the alkali-insoluble residue is leached with a mineral acid, followed by alkali neutralization to recover heavy metal-containing products.
- Japanese Patent Application Laid-Open No. 2003-164829 discloses a method of separating a heavy metal-containing product by adding a mineral acid after alkali-leaching a washed ash of fly ash.
- Patent document 1 JP-A-7-109533
- Patent Document 2 JP-A-8-117724
- Patent Document 3 Japanese Patent Application Laid-Open No. 8-141539
- Patent Document 4 JP 2001-113242 A
- Patent Document 5 Japanese Patent Application Laid-Open No. 2001-348627
- Patent Document 6 JP-A-2003-164829
- fly ash when fly ash is treated, the fly ash is first washed with water and then treated with an aqueous solution of an alkali or an acid, or the fly ash is wet-treated from the beginning with an aqueous solution of an alkali or an acid. That power S is done.
- wet treatment with an aqueous solution of alkali, acid, or the like the problems and deviations when heavy metals and other components contained in fly ash elute into the washing water and aqueous solution. Occurs.
- An object of the present invention is to reduce the cost of drainage treatment and the treatment required by preventing the elution of heavy metals and the like from fly ash, and to reduce the loss of heavy metals and the like in fly ash and reduce the amount of resources. To make it available as
- fly ash is pulverized in advance when wet-treating fly ash. And a method for pretreating fly ash.
- the particle size of the crushed fly ash can be reduced to a specific surface area of 10 m 2 / g or more, and the volume conversion frequency of 1 micron diameter measured by a laser particle size distribution analyzer to 0.01% or more. It is desirable that the frequency of volume conversion of 10 micron diameter or less measured by laser or particle size distribution analyzer be 90% or more.
- the specific surface area is 10 m 2 Zg or more
- the volume conversion frequency of 1 micron diameter measured by a laser type particle size distribution analyzer is 0.01% or more, or a laser type particle size distribution analyzer.
- the crushed fly ash is characterized by being crushed to a volume conversion frequency of 10 micron diameter or less as measured by the above to any of 90% or more.
- fly ash is crushed in advance using a ball mill, an attritor, or a vibration mill.
- the ball mill may be provided with any of steel balls, zirconia balls, and alumina balls as grinding media, and the ball diameter may be 11 to 500 mm.
- Water may be added before the fly ash is ground.
- the fly ash contains, for example, at least one of Zn, Pb, Cu, Cd, Hg, Cr, As, B, Se, and F.
- FIG. 1 is a process flow diagram of a fly ash pretreatment method according to an embodiment of the present invention, showing an embodiment in which pulverization is performed by a wet method.
- FIG. 2 is a processing flowchart of a fly ash pretreatment method according to an embodiment of the present invention, showing an embodiment in which pulverization is performed by a dry method.
- FIG. 3 is a graph showing the results of laser diffraction particle size distribution measurement of each residue No. 1-4 in Example 1.
- FIG. 4 is a graph showing an X-ray diffraction result of each residue No. 1-4 in Example 1.
- FIG. 5 is a graph showing the results of a laser diffraction particle size distribution measurement of each residue No. 1-4 in Example 2.
- FIG. 6 is a graph showing the X-ray diffraction results of Residue Nos. 1-4 in Example 2.
- FIG. 1 and 2 are process flow diagrams of a fly ash pretreatment method that are both applied to the embodiment of the present invention.
- FIG. 1 shows an embodiment in which pulverization is performed by a wet method
- Fly ash to be treated in the present invention is collected by exhaust gas power from a combustion furnace, an incinerator, a melting furnace, or the like, and is normally collected by a bag filter or an electric dust collector installed in the exhaust gas path. Is done. Most typically, fly ash is collected from flue gas from general waste incineration facilities and municipal waste incineration facilities, etc., and ash (including the fly ash) is collected from flue gas when it is converted to slag in an ash melting furnace. Although fly ash is treated in the present invention, exhaust gas dusts similar thereto can also be treated. Fly ash contains at least one of Zn, Pb, Cu, Cd, Hg, Cr, As, B, Se, and F as a heavy metal and other components.
- fly ash when wet processing such fly ash, the fly ash is crushed in advance.
- the pulverization method may be either dry or wet.
- fly ash is ripened before the pulverization. That is, water is first added to the fly ash, and the fly ash is slurried by stirring.
- fly ash is pulverized. It is a well-known fact that the efficiency of pulverization is better when the fly ash is slurried and pulverized in a wet method than in the case of dry pulverization. Although this is classic, it is clear from Bond's grinding theory and the like. Also, as described later, fly ash is washed with water as wet treatment after pulverization. Thus, even if the water is washed and slurried to form a slurry and then wet pulverization is performed, the adverse effect on the subsequent wet method is particularly significant. No ,.
- the slurry concentration expressed by weight% of fly ash in the slurry is more than 0% and 60% or less from the viewpoint of grinding efficiency.
- the slurry concentration is 30-50%.
- fly ash For crushing fly ash, for example, a ball mill is used.
- fly ash may be pulverized using a medium stirring mill other than a ball mill such as a roller mill or an attritor.
- a ball mill In the case of a ball mill, there is a concern that the ball may be worn out.
- a pulverizer using attrition such as a mill. Considering the composition of the fly ash, economics, etc., it is good to select a suitable crusher for each.
- the ball diameter is, for example, 1 to 500 mm.
- the crushing time required for crushing the fly ash is preferably 30 min or more.
- the particle size of the pulverized fly ash is 10m 2 Zg or more in specific surface area
- the volume conversion frequency of 1 micron diameter measured by a laser type particle size distribution measuring device is 0.01% or more, or a set of lasers. It is desirable to pulverize fly ash until the frequency of volume conversion of 10 micron diameter or less measured by a particle size distribution analyzer satisfies one of the following conditions.
- the pH of the slurry after pulverizing the fly ash is preferably about 10.5-11.1. Then, as described later, when the fly ash is pulverized and washed with water as wet treatment, elution of heavy metals can be effectively suppressed. If the pH of the slurry becomes higher than 11.0 after the fly ash is pulverized, the amount of heavy metals such as Pb eluted increases when the fly ash is washed with water after the pulverization, as described later. In addition, the pulverization time for suppressing the elution of heavy metals is prolonged.
- the pH of the slurry after the fly ash is pulverized is about 10.5 to 11.0, the pH of the slurry may be out of the range during repulp.
- the pH of the slurry becomes more than 10.5 after pulverizing the fly ash, even if it is weakly alkaline (about pH 7-9) during repulping. It is also preferable to control the pH of the slurry without using chemicals more than necessary, such as by mixing multiple types of fly ash.
- the temperature of the slurry during the grinding it is preferable to maintain the temperature of the slurry during the grinding at 10 to 90 ° C. It is preferable that the temperature of the slurry is high. However, if the slurry is crushed, the temperature of the slurry increases due to friction or the like.
- the fly ash particle size is 10 m 2 Zg or more in specific surface area, and the volume conversion frequency of 1 micron diameter measured by a laser type particle size distribution analyzer is 0.01% or more, or
- water is added to the pulverized fly ash (slurry), and the wet ash is added.
- the treatment removes alkali components such as Na and K and acid components such as C1 from fly ash. In other words, sufficient water is added to the crushed fly ash (slurry), repulped again by stirring and storage, and alkaline components such as Na and K and acid components such as C1 are leached from the fly ash.
- fly ash is pulverized in advance, so that Zn, Pb, Cu, Cd, Hg, Cr, As, Elution of components such as B, Se, and F into the liquid can be suppressed. This is due to the fact that when fly ash is pulverized, ore components such as Al, Si, S, and P contained in the fly ash cause a mechanochemical reaction due to stress and change the crystal morphology. It is thought that.
- Solid-liquid separation After removing alkali and acid components from the fly ash by wet treatment, solid-liquid separation is performed. Solid-liquid separation can be performed using a filter press, centrifuge, screw decanter, or the like. The equipment for solid-liquid separation may be determined as appropriate, taking into account the cost, dehydration and cleaning properties. If a long time is required for solid-liquid separation, components such as Zn, Pb, Cu, Cd, Hg, Cr, As, B, Se, and F contained in fly ash may elute into the liquid. However, it was found that by crushing the fly ash in advance, even if a long time was required for solid-liquid separation, the elution of these components into the liquid could be suppressed.
- the residue separated from the wastewater by the solid-liquid separation is appropriately subjected to a wet treatment such as leaching of mineral acid and neutralization, and then reused as a raw material for refining heavy metals, for example.
- a wet treatment such as leaching of mineral acid and neutralization
- the residue that is reused as a raw material for refining heavy metals is enriched with heavy metals and the like, and becomes, for example, a raw material of sufficient quality to be supplied to the wet zinc production process.
- the wastewater separated from the residue by the solid-liquid separation is substantially free of heavy metals and the like. Therefore, the processing cost can be reduced.
- various treatments such as acid, alkali treatment, coprecipitation treatment, and sulfurization treatment were required to treat heavy metals and the like eluted in wastewater, and a considerable amount of chemicals were used. According to this, such treatment is unnecessary or significantly reduced, and the cost of chemicals is extremely low.
- the first pulverization is performed without adding water. Crush the ash.
- the dry method is selected as the pulverizing method, it is advantageous in that the re-pulper tank for turning the fly ash into a slurry can be omitted.
- the reduction in grinding efficiency compared to the wet grinding method requires a longer grinding time and a lower throughput.
- a ball mill in the case of performing the dry pulverization as described above, a ball mill, a roller mill, another medium stirring mill, an attritor, or the like can be appropriately used as a pulverizer.
- a ball mill it is preferable to use a ceramic ball such as a steel ball, a zirconia ball, or an alumina ball as a grinding medium, and the ball diameter is, for example, 11 to 500 mm.
- the crushing time required for crushing the fly ash is preferably 30 min or more. Its to the particle size of the fly ash, a specific surface area in 10 m 2 / g or more, in terms of volume frequency of 1 micron diameter measured by a laser type particle size distribution measuring apparatus 0.01% or more, or a laser particle size distribution analyzer
- the fly ash is pulverized until the volume conversion frequency of 10 ⁇ m or less measured by the above method is 90% or more
- water is added to the pulverized fly ash, and the wet ash is added to remove the salt from the fly ash. Is removed. In other words, sufficient water is added to the ground fly ash, and repulping is performed by stirring and storage, and salts (alkaline components such as Na and K and acid components such as C1) are leached from the fly ash.
- Fly ash was pulverized by adjusting the strength so that the amplitude became 8 mm, and adjusting the inverter by using an inverter so that the number of revolutions became 1720 rpm.
- the grinding time is 30 minutes.
- the ground fly ash and steel balls were placed on a sieve net, and the fly ash attached to the balls was washed away using distilled water and collected. Distilled water was further added so that the total amount of water became 5000 g, and the mixture was stirred for 60 minutes. After stirring, solid-liquid separation was performed, and the filtrate was analyzed. The analysis results of this filtrate are shown in Table 2, No. 2.
- the treatment was performed in the same manner as in No. 2 except that the grinding time was changed to 4 hours, and the filtrate was analyzed.
- the analysis results of this filtrate are shown in Table 2, No. 3.
- the filtrate was analyzed in the same manner as in No. 2 except that the grinding media was zirconia balls (ZR) with a diameter of 3 mm.
- the analysis results of this filtrate are shown in Table 2, No. 4.
- the filtrate of No. 24, which is an example of the present invention, was compared with the filtrate of the comparative example (No. 1) in terms of Cu, Pb, Zn, Cd, Mn, As, Hg, Cr, B, and F. And the amount of Se eluted was low.
- B fly ash with the composition shown in Table 1 was treated.
- 5000 g of distilled water was added to 500 g of fly ash B, and the mixture was stirred for 60 minutes. After stirring, solid-liquid separation was performed, and the filtrate was analyzed. The analysis results of this filtrate are shown in No. 1 of Table 4.
- 500 g of B fly ash was put into a 3 liter container, and 7 kg of steel balls (SB) having a diameter of 6 mm and 750 g of distilled water were put as grinding media in this container. The fly ash was pulverized for 30 minutes at a rotation speed of 1720 rpm.
- the present invention is used for the pretreatment of fly ash collected from flue gas generated during incineration of municipal solid waste and the like or flue gas generated during melting processing of ash and dust during incineration. it can.
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Crushing And Grinding (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004040364A JP4665095B2 (ja) | 2004-02-17 | 2004-02-17 | 飛灰の前処理方法 |
JP2004-040364 | 2004-02-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005077557A1 true WO2005077557A1 (ja) | 2005-08-25 |
Family
ID=34857881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/011081 WO2005077557A1 (ja) | 2004-02-17 | 2004-08-03 | 飛灰の前処理方法 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP4665095B2 (ja) |
WO (1) | WO2005077557A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108083755A (zh) * | 2017-12-18 | 2018-05-29 | 启迪桑德环境资源股份有限公司 | 利用生活垃圾焚烧飞灰制造人居用建材的方法 |
CN108558291A (zh) * | 2018-05-29 | 2018-09-21 | 陈道华 | 一种利用生活垃圾焚烧飞灰制造建材的方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7156630B2 (ja) * | 2018-05-18 | 2022-10-19 | 株式会社大林組 | フライアッシュまたはクリンカアッシュの少なくとも一方に含まれている重金属類の溶出を抑制する方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09241017A (ja) * | 1996-03-07 | 1997-09-16 | Harima Ceramic Co Ltd | 抗菌性セラミックスの製造方法 |
JPH10202220A (ja) * | 1997-01-20 | 1998-08-04 | Nippon Cement Co Ltd | 廃棄物の処理方法 |
JP2002011366A (ja) * | 2000-06-29 | 2002-01-15 | Kurita Water Ind Ltd | 灰の粉砕方法及び灰の固化成形体 |
JP2002336813A (ja) * | 2001-05-11 | 2002-11-26 | Electric Power Dev Co Ltd | 多機能性フライアッシュ及びその製造方法 |
JP2003144949A (ja) * | 2001-11-14 | 2003-05-20 | Kenjiro Makino | 超微粉砕された天然物の製法および超微粉砕された天然物を含む組成物 |
JP2003190909A (ja) * | 2001-12-25 | 2003-07-08 | Mitsubishi Heavy Ind Ltd | 難分解性物質の処理方法及びその装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08117626A (ja) * | 1994-10-21 | 1996-05-14 | Sekisui Chem Co Ltd | フライアッシュ粉粒体の製造方法およびこのフライアッシュ粉粒体を用いた硬化性無機質組成物 |
JP2003190908A (ja) * | 2001-12-25 | 2003-07-08 | Mitsubishi Heavy Ind Ltd | 光触媒を用いた難分解性物質の処理装置 |
-
2004
- 2004-02-17 JP JP2004040364A patent/JP4665095B2/ja not_active Expired - Fee Related
- 2004-08-03 WO PCT/JP2004/011081 patent/WO2005077557A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09241017A (ja) * | 1996-03-07 | 1997-09-16 | Harima Ceramic Co Ltd | 抗菌性セラミックスの製造方法 |
JPH10202220A (ja) * | 1997-01-20 | 1998-08-04 | Nippon Cement Co Ltd | 廃棄物の処理方法 |
JP2002011366A (ja) * | 2000-06-29 | 2002-01-15 | Kurita Water Ind Ltd | 灰の粉砕方法及び灰の固化成形体 |
JP2002336813A (ja) * | 2001-05-11 | 2002-11-26 | Electric Power Dev Co Ltd | 多機能性フライアッシュ及びその製造方法 |
JP2003144949A (ja) * | 2001-11-14 | 2003-05-20 | Kenjiro Makino | 超微粉砕された天然物の製法および超微粉砕された天然物を含む組成物 |
JP2003190909A (ja) * | 2001-12-25 | 2003-07-08 | Mitsubishi Heavy Ind Ltd | 難分解性物質の処理方法及びその装置 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108083755A (zh) * | 2017-12-18 | 2018-05-29 | 启迪桑德环境资源股份有限公司 | 利用生活垃圾焚烧飞灰制造人居用建材的方法 |
CN108083755B (zh) * | 2017-12-18 | 2020-11-06 | 启迪桑德环境资源股份有限公司 | 利用生活垃圾焚烧飞灰制造人居用建材的方法 |
CN108558291A (zh) * | 2018-05-29 | 2018-09-21 | 陈道华 | 一种利用生活垃圾焚烧飞灰制造建材的方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2005230623A (ja) | 2005-09-02 |
JP4665095B2 (ja) | 2011-04-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2248975C (en) | A process for the production titanium concentrate having a chemical composition similar to ilmenite from highly impure anatase ores | |
WO2006035630A1 (ja) | セメントキルン燃焼ガス抽気ダストの処理システム及び処理方法 | |
CN109455738A (zh) | 一种利用垃圾飞灰制备高品质工业盐的工艺 | |
CA1183808A (en) | Wet-classifying method for recovery of carbon and iron-bearing particles | |
JP2011157568A (ja) | 亜鉛めっき廃液の資源化方法 | |
JP5761544B1 (ja) | 塩素含有灰の脱塩処理方法および脱塩処理装置 | |
JP6436390B2 (ja) | 焼却灰の処理方法および処理装置 | |
Lv et al. | Upgrading of raw vanadium titanomagnetite concentrate | |
JP2011173031A (ja) | 石膏が付着したボード原紙の処理法 | |
WO2005077557A1 (ja) | 飛灰の前処理方法 | |
CA2161831A1 (en) | Process for the recovery of metallic iron from slags and other residues | |
Filio et al. | Grinding of EP Dust and its effect on solubility of metal compounds in water | |
WO2015105472A1 (ru) | Способ комплексной переработки шламов металлургических и горно-обогатительных предприятий | |
RU2407814C2 (ru) | Способ экстрагирования металла из минеральной руды, содержащей упорную руду в безрудной породе, и установка для осуществления указанного способа | |
JP5832184B2 (ja) | 高炉発生物中の湿ダストの再活用方法 | |
JP7503014B2 (ja) | アルカリ金属含有物の処理方法、アルカリ金属含有物の処理システム | |
JP5832183B2 (ja) | 高炉発生物中の湿ダストの再活用方法 | |
JPS63151609A (ja) | 製鉄ダストから高品位の黒鉛を回収、精製する方法 | |
JP2009191305A (ja) | 還元炉から発生する二次ダストの鉄分および亜鉛分の有効利用方法 | |
JP4277108B2 (ja) | 飛灰からの重金属回収方法 | |
CN112301235A (zh) | 一种卧式回转反应机及利用含钒钢渣处理钛白废酸的方法 | |
RU2415187C1 (ru) | Способ извлечения латуни, оксида цинка и оксида меди из шлака латунного литейного производства | |
JP4907284B2 (ja) | 鉄系廃棄物原料の処理方法 | |
JP2018118235A (ja) | 焼却灰の重金属回収方法及び焼却灰の重金属回収処理システム | |
JP2005213527A (ja) | 亜鉛水酸化物の脱塩素方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |