WO2007074627A1 - フライアッシュ中の未燃カーボン除去方法 - Google Patents
フライアッシュ中の未燃カーボン除去方法 Download PDFInfo
- Publication number
- WO2007074627A1 WO2007074627A1 PCT/JP2006/324643 JP2006324643W WO2007074627A1 WO 2007074627 A1 WO2007074627 A1 WO 2007074627A1 JP 2006324643 W JP2006324643 W JP 2006324643W WO 2007074627 A1 WO2007074627 A1 WO 2007074627A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fly ash
- unburned carbon
- slurry
- carbon
- unburned
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 96
- 239000010881 fly ash Substances 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000002002 slurry Substances 0.000 claims abstract description 82
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 29
- 238000005188 flotation Methods 0.000 claims abstract description 26
- 238000010008 shearing Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000004088 foaming agent Substances 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims description 22
- 239000002516 radical scavenger Substances 0.000 claims description 19
- 239000000446 fuel Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract 1
- 241000628997 Flos Species 0.000 description 15
- 239000003921 oil Substances 0.000 description 10
- 239000002956 ash Substances 0.000 description 9
- 238000012986 modification Methods 0.000 description 9
- 230000004048 modification Effects 0.000 description 9
- WVYWICLMDOOCFB-UHFFFAOYSA-N 4-methyl-2-pentanol Chemical compound CC(C)CC(C)O WVYWICLMDOOCFB-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000003350 kerosene Substances 0.000 description 6
- 238000005192 partition Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 230000009495 transient activation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/16—Flotation machines with impellers; Subaeration machines
- B03D1/22—Flotation machines with impellers; Subaeration machines with external blowers
-
- 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
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/08—Subsequent treatment of concentrated product
- B03D1/085—Subsequent treatment of concentrated product of the feed, e.g. conditioning, de-sliming
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1406—Flotation machines with special arrangement of a plurality of flotation cells, e.g. positioning a flotation cell inside another
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/1462—Discharge mechanisms for the froth
-
- 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
Definitions
- the present invention relates to a method for removing unburned carbon in fly ash, and more specifically, a method for removing unburned carbon in fly ash that efficiently removes fly ash force unburned carbon generated in a coal-fired thermal power plant. About.
- Fly ash (FA) generated at a coal-fired thermal power plant is used as a raw material for cement and artificial lightweight aggregates, or as an admixture for concrete.
- fly ash with little unburned carbon is used as admixture for concrete, etc., and fly ash with a lot of unburned carbon is used as a cement raw material or landfilled as industrial waste. It had been.
- Part of the oil is also collected by the high-speed shear mixer on the surface of the activated ash that is contained in the ash and only adheres to the surface of the unburned carbon. It adheres when stirring. For this reason, there exists a problem that the required addition amount of the oil which is a collection agent increases.
- the present invention has been made to solve such a problem, and an object of the present invention is to apply unaffected carbon in fly ash by applying a flotation method by surface lipophilicity (surface modification).
- surface lipophilicity surface modification
- the present invention is configured as follows.
- the invention according to claim 1 is a method for removing unburned carbon contained in fly ash as a raw material, and adding a slurry to the fly ash to form a slurry, and a slurry fly ash. Sheared by a stirring blade rotating at high speed, Therefore, the step of imparting lipophilicity by generating active energy on the surface of the unburned carbon, and the unburnt carbon made lipophilic by adding a scavenger and a foaming agent to the slurry containing the oleophilic unburned carbon.
- These are a process of attaching a scavenger to the air and attaching a non-burning carbon with a scavenger attached to the air bubbles, and a method for removing unburned carbon in the fly ash.
- the invention according to claim 2 is characterized in that the fly ash concentration in the slurry is 5 to 40 wt% when water is added to the fly ash to form a slurry. This is a method for removing unburned carbon.
- the invention according to claim 3 is characterized in that a stirring power of 10 to LOOKw / m 3 per unit slurry amount of slurry is applied to apply shear force to the slurry fly ash. 2.
- the invention according to claim 4 is characterized in that the slurry residence time is 0.1 to 10 minutes when the shearing force is applied to the slurry fly ash. This is a method for removing unburned carbon from fly ash.
- the addition amount of the collection agent is 0 to 3.
- water is added to fly ash to form a slurry, and then, for example, a shearing force is applied to the fly ash that has been slurried using a high-speed shear mixer or the like, so that it is contained in the fly ash.
- transient active energy surface energy
- the surface becomes more lipophilic (hydrophobic).
- fly ash generated in a coal-fired thermal power plant is combustion ash generated by burning pulverized coal at a high temperature (eg, 1200 to 1500 ° C), and is therefore included in the ash.
- the surface of the unburned carbon is in an acidified state and loses its original lipophilicity.
- the scavenger is attached to the unburned carbon activated by surface modification and the surface of which is made oleophilic. Since the agent is not attached, the additive (use amount) of the collection agent (oil) can be reduced as compared with the conventional method. Moreover, since there is no adhesion of the scavenger to the fly ash surface, the recovery rate of fly ash is increased, and the amount of unburned carbon in the recovered fly ash is reduced.
- FIG. 1 is a system configuration diagram for carrying out a method for removing unburned carbon in fly ash according to the present invention.
- FIG. 2 is a configuration diagram of an apparatus for carrying out the method for removing unburned carbon in fly ash according to the present invention.
- FIG. 3 is a side view including a partial cross section of the high-speed shear mixer.
- FIG. 4 is a cross-sectional view of an example of a flotation machine.
- FIG. 5 is a plan view of an example of a flotation machine.
- FIG. 6 is a cross-sectional view of an example of a stirrer.
- FIG. 7 (a) State diagram during slurry, (b) State diagram during surface modification, (c) State diagram during addition of scavenger, (d) State diagram during flotation.
- the system is mainly composed of a slurry preparation tank 1 in which water b is added to fly ash a, which is a raw material, and a surface reformer (for example, high-speed shearing) that performs surface modification of the slurry fly ash.
- a surface reformer for example, high-speed shearing
- Mixer 10 the adjustment tank 30 for adding the collection agent e and the foaming agent f to the slurry after the surface modification, and the slurry after the addition of the collection agent and the foaming agent are stirred and not mixed with bubbles.
- It consists of a flotation machine 40 that flotates fuel carbon.
- the slurry preparation tank 1 is provided for generating slurry d with fly ash a and water b, and internally includes stirring blades 2 for stirring slurry d. Yes.
- a front stage of the slurry preparation tank 1 is provided with a fly ash tank and a water supply facility (not shown), and a pump 3 for supplying the slurry d to the high-speed shear mixer 10 which is a surface reforming apparatus is provided at the subsequent stage. have.
- the high-speed shear mixer 10 is provided to modify the surface of unburned carbon by applying a shearing force (abrasion force) to the slurry fly ash.
- the high-speed shear mixer 10 includes a cylindrical horizontal main body 11, a plurality of annular partition walls 13 that divide the main body 11 into a plurality of chambers 12 in the axial direction, and a main body 11. It has a rotating shaft 14 penetrating, a disk 15 provided on the rotating shaft 14, and a plurality of stirring blades 16 provided radially on both sides of the disk 15, and rotates via a motor 17 and a speed reducer 18. The shaft 14 and the stirring blade 16 are rotated.
- the adjustment tank 30 adds a small amount of a trapping agent e such as kerosene, light oil, and heavy oil and a foaming agent f such as MIBC (methyl isobutyl carbinol) to the slurry from the high-speed shear mixer 10.
- a stirring blade 31 for low-speed stirring is provided inside.
- a pump 32 for supplying the slurry d to the flotation machine 40 is disposed downstream of the adjustment tank 30.
- the flotation machine 40 causes unburned carbon to adhere to the generated bubbles and floats up to separate the unburned carbon c and the ash a 'from which the unburned carbon has been removed.
- the flotation machine 40 has a structure as shown in FIGS. 4 to 6, but may have another structure (for example, column flotation).
- the flotation machine 40 has a plurality of rooms 43 partitioned by a partition wall 42 in a rectangular tank 41, and each room 43 is provided with a stirrer 44.
- This stirrer 44 is a vertical rotation
- An outer tube 47 is provided outside the shaft 45.
- the outer pipe 47 has an air introduction pipe 48 at the upper part and a hood 49 for covering the stirring blades 46 at the lower part.
- the flotation machine 40 has a floss discharge path 50 on both sides of the tank 41.
- the floss discharge path 50 has an inclined bottom 51 and a floss collecting path 52 connected to both floss discharge paths 50 on the valley side.
- the flotation machine 40 is provided with a floss feeder 54 on the upper side of a side wall (also referred to as a weir) 53 having a floss discharge path 50.
- the floss feeder 54 includes a rotating shaft 56 that is rotated by a motor 55 and a plurality of water wheels 57 that are provided on the rotating shaft 56.
- the flotation machine 40 has a slurry inlet 58 on the upstream end face, a tail outlet 59 on the downstream end face, and a floss outlet 60 on the floss collecting path 52. Yes.
- Each partition wall 42 has a communication port 61.
- fly ash a is supplied to the slurry preparation tank 1 and mixed with water b to form slurry d.
- the fly ash concentration in the slurry is adjusted in the range of 5 to 40 wt%, preferably 15 to 25 wt%. If the fly ash concentration in the slurry is less than 5 wt%, the fly ash content is too small, and it is not profitable when industrialized. On the other hand, if it exceeds 4 Owt%, the slurry concentration increases and hinders subsequent processes.
- the slurry d in the slurry preparation tank 1 is supplied to the high-speed shear mixer 10 by the pump 3, and the shearing force is applied by the high-speed shear mixer 10.
- the application of the shearing force can be performed using the high-speed shearing mixer 10 shown in FIG.
- the slurry d supplied from the inlet 19 of the high-speed shear mixer 10 is activated by applying a shearing force by the stirring blade 16 rotating at high speed in each room 12 partitioned by the partition wall 13. At that time, the annular partition wall 13 can prevent the slurry d from being short-passed and can surely apply a shearing force to the slurry.
- the activated slurry d applied with shearing force is discharged from the outlet 20 and supplied to the adjusting tank 30.
- the shearing force is applied to the fly ash slurry to activate it. This is because the surface of unburned carbon is modified to improve the flotation floatability. This will be described with reference to FIGS. 7 (a) to 7 (d).
- the slurry d containing fly ash is merely in a state where fly ash a and unburned carbon c are individually mixed in water, as shown in FIG. 7 (a).
- transient activation energy surface energy
- g is formed, and the surface becomes more lipophilic (hydrophobic).
- the surface of fly ash a becomes more hydrophilic and adapts to water.
- the residence time of the slurry in the high-speed shear mixer 10 is 0.1 to: L0 minutes, preferably 0.5 to 5 minutes. If the slurry residence time is less than 0.1 minute, the surface modification of the unburned carbon is insufficient, and if it exceeds 10 minutes, there are problems such as increased equipment cost and running cost of the surface reformer. .
- the slurry d 'activated by applying shear force by the high-speed shear mixer 10 is supplied to the adjustment tank 30, and in the adjustment tank 30, the collecting agent is used for the slurry d' after the surface modification.
- e eg kerosene, light oil, heavy oil
- foaming agent f eg MIBC (methyl isobutyl carbinol)
- the addition amount of the collection agent is 0 to 3. Owt%, preferably 0.05 to 1. Owt% with respect to fly ash.
- the amount of foaming agent added is 20-5, OOOppm, preferably 100-1000ppm.
- the addition amount of the foaming agent is less than 20 ppm, the addition amount of the foaming agent is insufficient, and it is difficult to sufficiently generate bubbles. Conversely, if the amount of foaming agent added exceeds 5, OOOppm, some fly ash is adsorbed by the bubbles, which reduces the recovery rate of fly ash.
- the slurry d "stirred and adjusted in the adjustment tank 30 is supplied to the flotation machine 40 by the pump 32.
- the slurry d ⁇ supplied to the flotation machine 40 is stirred by the stirrer 44.
- the stirrer 44 rotates, the air h is sucked from the air introduction pipe 48, and bubbles n are generated.At that time, there is a case where air is forcibly blown in.
- an air introduction pipe is provided and a blower or the like is provided.
- bubbles n are generated, unburned carbon c adheres to the surface of the bubbles n via the trapping agent e and floats with the bubbles n, as shown in Fig. 7 (d).
- the unburned carbon c that has floated together with the bubbles n is blown out of the tank by the floss blower 54 provided at the upper end of the side wall (weir) 53 and flows down into the floss discharge passage 50.
- the floss (unburned carbon) i in the floss discharge path 50 flows along the inclined bottom 51, and is discharged to the outside through the floss collecting path 52.
- the tail (fly ash) j remaining in the tank 41 is discharged out of the machine through the take-out port 59 together with water.
- the surface of the unburned carbon is modified by the shearing force by the high-speed shear mixer.
- the surface of the unburned carbon is removed by the shearing force using a device such as an ejector.
- a device such as an ejector.
- any device may be used as long as it can modify the surface of the unburned carbon by applying a shearing force to the slurry-like unburned force.
- the fly ash recovery rate was 76. It was 5 wt%.
- the amount of unburned carbon in the recovered fly ash was 1. lwt%, resulting in insufficient scavenger.
- the present invention can be used, for example, for efficiently removing unburned carbon from fly ash generated in a coal-fired thermal power plant.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biotechnology (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/087,069 US7703610B2 (en) | 2005-12-26 | 2006-12-11 | Method for removal of unburned carbon contained in fly ash |
DK06834398.7T DK1970135T3 (da) | 2005-12-26 | 2006-12-11 | Fremgangsmåde til fjernelse af uforbrændt carbon i flyveaske |
ES06834398T ES2425230T3 (es) | 2005-12-26 | 2006-12-11 | Método para retirar el carbón sin quemar contenido en la ceniza volante |
EP06834398.7A EP1970135B1 (en) | 2005-12-26 | 2006-12-11 | Method for removal of unburned carbon contained fly ash |
CN2006800492052A CN101346193B (zh) | 2005-12-26 | 2006-12-11 | 飞灰中的未燃烧碳除去方法 |
KR1020087016208A KR101269456B1 (ko) | 2005-12-26 | 2008-07-03 | 플라이 애시 중의 미연 카번 제거방법 |
HK09104384.7A HK1126160A1 (en) | 2005-12-26 | 2009-05-13 | Method for removal of unburned carbon contained fly ash |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-373020 | 2005-12-26 | ||
JP2005373020A JP4917309B2 (ja) | 2005-12-26 | 2005-12-26 | フライアッシュ中の未燃カーボン除去方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2007074627A1 true WO2007074627A1 (ja) | 2007-07-05 |
WO2007074627A8 WO2007074627A8 (ja) | 2008-05-29 |
Family
ID=38217848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/324643 WO2007074627A1 (ja) | 2005-12-26 | 2006-12-11 | フライアッシュ中の未燃カーボン除去方法 |
Country Status (10)
Country | Link |
---|---|
US (1) | US7703610B2 (ja) |
EP (1) | EP1970135B1 (ja) |
JP (1) | JP4917309B2 (ja) |
KR (1) | KR101269456B1 (ja) |
CN (1) | CN101346193B (ja) |
DK (1) | DK1970135T3 (ja) |
ES (1) | ES2425230T3 (ja) |
HK (1) | HK1126160A1 (ja) |
TW (1) | TWI362966B (ja) |
WO (1) | WO2007074627A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010004942A1 (ja) * | 2008-07-08 | 2010-01-14 | 三井造船株式会社 | フライアッシュ中の未燃カーボンの分離方式 |
JP2010023018A (ja) * | 2008-06-18 | 2010-02-04 | Shingijutsu Kenzai Kk | スラリー化した石炭灰前処理方法およびスラリー化した石炭灰前処理装置並びに石炭灰処理方法および石炭灰処理設備 |
US20110036271A1 (en) * | 2008-03-31 | 2011-02-17 | Taiheiyo Cement Corporation | Method of controlling chemical in wet decarburinozation of fly ash |
JP2014087755A (ja) * | 2012-10-31 | 2014-05-15 | Taiheiyo Cement Corp | 建設材料の製造装置及び製造方法 |
Families Citing this family (8)
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JP4960629B2 (ja) * | 2005-12-22 | 2012-06-27 | 三井造船株式会社 | フライアッシュ中の未燃カーボンの除去方法 |
JP4802305B2 (ja) | 2009-07-17 | 2011-10-26 | 独立行政法人科学技術振興機構 | 浮遊分離装置及び方法並びにその利用製品の製造方法 |
US9074767B2 (en) * | 2010-02-11 | 2015-07-07 | Alstom Technology Ltd | Rotary bottom ash regeneration system |
JP6089198B1 (ja) * | 2016-07-22 | 2017-03-08 | 株式会社リュウクス | フライアッシュの加熱焼成装置及び焼成方法 |
CN107309239A (zh) * | 2017-05-18 | 2017-11-03 | 潍坊鑫山环保重工科技有限公司 | 一种煤化工气化炉炉渣的煤灰分离方法 |
JP2019042624A (ja) * | 2017-08-30 | 2019-03-22 | 太平洋セメント株式会社 | 石炭灰処理・物流方法 |
JP6737414B2 (ja) * | 2018-02-06 | 2020-08-12 | 日本製鉄株式会社 | 炭素含有粉、分離方法、及び炭素含有粉の利用方法 |
JP7372829B2 (ja) * | 2019-12-18 | 2023-11-01 | 株式会社トクヤマ | 改質フライアッシュの製造方法 |
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DK146216C (da) * | 1981-02-16 | 1984-02-20 | Oeresund Kryolit | Fremgangsmaade til fraskillelse af kulpartikler fra flyveaske ved flotation |
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-
2005
- 2005-12-26 JP JP2005373020A patent/JP4917309B2/ja not_active Expired - Fee Related
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2006
- 2006-12-11 EP EP06834398.7A patent/EP1970135B1/en not_active Not-in-force
- 2006-12-11 ES ES06834398T patent/ES2425230T3/es active Active
- 2006-12-11 US US12/087,069 patent/US7703610B2/en not_active Expired - Fee Related
- 2006-12-11 DK DK06834398.7T patent/DK1970135T3/da active
- 2006-12-11 WO PCT/JP2006/324643 patent/WO2007074627A1/ja active Application Filing
- 2006-12-11 CN CN2006800492052A patent/CN101346193B/zh not_active Expired - Fee Related
- 2006-12-25 TW TW095148738A patent/TWI362966B/zh not_active IP Right Cessation
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2008
- 2008-07-03 KR KR1020087016208A patent/KR101269456B1/ko not_active IP Right Cessation
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- 2009-05-13 HK HK09104384.7A patent/HK1126160A1/xx not_active IP Right Cessation
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JPS5489902A (en) * | 1977-12-23 | 1979-07-17 | American Cyanamid Co | Floth floatation of coal |
JPS58104652A (ja) * | 1981-12-15 | 1983-06-22 | Mitsubishi Heavy Ind Ltd | 石炭凝集浮揚物の分離方法 |
JPS59127660A (ja) * | 1983-01-07 | 1984-07-23 | Kawasaki Heavy Ind Ltd | 石炭灰、低品位炭の処理方法 |
JPH0538468A (ja) * | 1991-08-07 | 1993-02-19 | Onoda Cement Co Ltd | 石炭灰の処理方法 |
JPH0857351A (ja) * | 1994-08-18 | 1996-03-05 | Chichibu Onoda Cement Corp | 石炭灰の処理方法 |
JP2003266057A (ja) * | 2003-01-24 | 2003-09-24 | Taiheiyo Cement Corp | 石炭灰の処理方法 |
Non-Patent Citations (1)
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110036271A1 (en) * | 2008-03-31 | 2011-02-17 | Taiheiyo Cement Corporation | Method of controlling chemical in wet decarburinozation of fly ash |
US8454745B2 (en) * | 2008-03-31 | 2013-06-04 | Taiheiyo Cement Corporation | Method of controlling chemical in wet decarburinozation of fly ash |
JP2010023018A (ja) * | 2008-06-18 | 2010-02-04 | Shingijutsu Kenzai Kk | スラリー化した石炭灰前処理方法およびスラリー化した石炭灰前処理装置並びに石炭灰処理方法および石炭灰処理設備 |
WO2010004942A1 (ja) * | 2008-07-08 | 2010-01-14 | 三井造船株式会社 | フライアッシュ中の未燃カーボンの分離方式 |
JP2010017619A (ja) * | 2008-07-08 | 2010-01-28 | Mitsui Eng & Shipbuild Co Ltd | フライアッシュ中の未燃カーボンの分離方法 |
JP2014087755A (ja) * | 2012-10-31 | 2014-05-15 | Taiheiyo Cement Corp | 建設材料の製造装置及び製造方法 |
Also Published As
Publication number | Publication date |
---|---|
TW200732041A (en) | 2007-09-01 |
JP2007167825A (ja) | 2007-07-05 |
US7703610B2 (en) | 2010-04-27 |
EP1970135B1 (en) | 2013-07-17 |
DK1970135T3 (da) | 2013-08-26 |
TWI362966B (en) | 2012-05-01 |
CN101346193B (zh) | 2012-07-11 |
JP4917309B2 (ja) | 2012-04-18 |
US20090008302A1 (en) | 2009-01-08 |
HK1126160A1 (en) | 2009-08-28 |
KR20080087110A (ko) | 2008-09-30 |
ES2425230T3 (es) | 2013-10-14 |
WO2007074627A8 (ja) | 2008-05-29 |
EP1970135A1 (en) | 2008-09-17 |
EP1970135A4 (en) | 2012-01-18 |
CN101346193A (zh) | 2009-01-14 |
KR101269456B1 (ko) | 2013-05-30 |
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