WO2009028636A1 - 砒酸鉄粉末 - Google Patents
砒酸鉄粉末 Download PDFInfo
- Publication number
- WO2009028636A1 WO2009028636A1 PCT/JP2008/065474 JP2008065474W WO2009028636A1 WO 2009028636 A1 WO2009028636 A1 WO 2009028636A1 JP 2008065474 W JP2008065474 W JP 2008065474W WO 2009028636 A1 WO2009028636 A1 WO 2009028636A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- arsenic
- powder
- iron
- solution
- iron arsenate
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G28/00—Compounds of arsenic
- C01G28/02—Arsenates; Arsenites
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/14—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/77—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by unit-cell parameters, atom positions or structure diagrams
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/103—Arsenic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
Definitions
- the present invention relates to iron arsenate powder, and in particular, high purity and high purity such as an arsenic-containing solution obtained by treating an arsenic-containing substance containing various elements other than arsenic, such as non-ferrous iron-making ironmaking intermediates.
- the present invention relates to an iron arsenate powder produced from an arsenic-containing solution containing a concentration of arsenic. Background technology
- At least one of the iron (II) solution and the iron (III) solution is added to the arsenic-containing solution and reacted to produce S corodite (F e A s 0 4 ⁇ 2 ⁇ 2 ⁇ ).
- the scootite containing the non-ferrous metal component containing copper is recovered by solid-liquid separation, and water is added to the obtained scorodite containing the non-ferrous metal component containing copper to repulp the copper contained in the scorodite.
- a nonferrous metal component contained is dissolved in a liquid and separated from scorodite (see, for example, JP 2000-219920 A).
- arsenic is leached from the ash containing arsenic with an acid solution, and an acidic aqueous solution containing iron ion is mixed into the leachate to precipitate amorphous iron arsenate (F e A s O 4 ), and then mixed.
- a method has been proposed in which amorphous iron arsenate is crystallized by heating the liquid, and the mixed liquid is filtered to remove the crystallized iron arsenate (see, for example, JP 2005-161123). .
- Japanese Examined Patent Publication No. 61-24329 discloses a method for collecting an arsenic-containing solution. A method is proposed, but no method is proposed to fix the recovered arsenic-containing solution to a stable, non-eluting substance.
- conventional iron and arsenic compounds produced by the methods of JP-A-11-277075, JP-A-2000-219920 and JP-A-2005-5-1612 It is desired to produce a more stable and non-eluting iron and arsenic compound.
- the method disclosed in Japanese Patent Laid-Open No. 2005-166 1 23 has a problem that it takes a very long time because amorphous iron arsenate is crystallized after amorphous iron arsenate is precipitated. is there. Disclosure of the invention
- an object of the present invention is to provide an iron arsenate powder produced from an arsenic-containing solution and having a very low arsenic elution concentration.
- the iron arsenate powder is preferably an iron arsenate dihydrate powder.
- iron arsenate powder having a very low arsenic elution concentration can be produced from an arsenic-containing solution.
- FIG. 1 is a process chart schematically showing a method for producing an iron arsenate powder according to an embodiment of the present invention.
- such an iron arsenate powder adds divalent iron ions to an arsenic-containing solution so that the arsenic mono-to-iron ratio (F e / A s) is 1 or more. It can be obtained by adding an oxidizer and raising the temperature to 70 ° C or higher with stirring and then separating the solid and liquid to wash the solid.
- the As concentration in the arsenic-containing solution is low, the particles tend not to coarsen during the growth process from the precipitation of the Fe and As compounds, so the As concentration is preferably l O gZL or more. More preferably, it is 20 gZL or more. Further, the pH of the arsenic-containing solution is preferably 2 or less.
- the divalent Fe source it is preferable to use soluble Fe 4 0 7 H 2 O.
- the molar ratio of arsenic to iron (F eZAs) in the solution is preferably 1 or more, and more preferably about 1.0 to 1.5.
- any oxidizing agent capable of oxidizing Fe 2+ can be used, and oxygen gas may be used.
- oxygen gas may be used.
- air may be used, but since the oxidation ability is slightly reduced, a catalyst such as Cu may be used to improve the oxidation ability when using air.
- reaction temperature is 50 ° C or higher, the compound of Fe and As can be precipitated, but in order to reduce the elution concentration of As, it is preferable to set it to 70 ° C or higher. More preferably, it is about ⁇ 95 ° C.
- an arsenic concentration (pentavalent arsenic ion concentration) 500 gZL arsenic solution (a reagent manufactured by Wako Pure Chemical Industries, Ltd.) was diluted with pure water to prepare an arsenic concentration 10 gZL arsenic solution.
- ferrous sulfate heptahydrate (F e S0 4. 7 ⁇ 2 ⁇ ) ( manufactured by Wako Pure Chemical Industries, Ltd. reagent) Diluted with pure water to prepare an iron concentration (divalent iron ion concentration) 1 1. 18 g / L ferrous sulfate solution.
- the prepared arsenic solution and ferrous sulfate solution were mixed to prepare 0.7 L of a mixed solution having a molar ratio of iron to arsenic (F eZ'A s) of 1.5.
- the two-stage turbine disk and 4 baffle plates were placed in a 2 L glass beaker.
- the mixed liquid is heated to maintain the liquid temperature at 95 ° C, and oxygen gas with a purity of 99% is supplied at a flow rate of 4.0 LZ.
- the mixture was blown into the mixture and reacted at atmospheric pressure for 3 hours while maintaining the temperature, stirring conditions and oxygen gas flow rate.
- the temperature of the mixed slurry containing the precipitate obtained by this reaction was lowered to 70 ° C., and the solid content was collected by filtration.
- the powder thus obtained was measured for powder X-ray diffraction, moisture content, average particle size and specific surface area.
- the obtained powder was orthorhombic scorodite-type iron arsenate crystals with a moisture content of 12%, an average particle size of 20.41 ⁇ m, and a specific surface area of 0. It was 25m 2 Zg (BET 1 point method).
- the particle size distribution was measured using a laser diffraction particle size distribution measuring device (LA-500 manufactured by Horiba, Ltd.), and the median diameter was defined as the average particle size.
- LA-500 laser diffraction particle size distribution measuring device
- the median diameter was defined as the average particle size.
- powder X-ray diffraction measurement a sealed X-ray tube using a copper target is used as a radiation source, a diverging beam concentrating optical system diffractometer is used, and diffraction X-rays from the sample are graphed counter monochromator. The monochromatic color was used to count the CuK characteristic lines.
- the lattice constant of the obtained powder was determined by the Pawley method (-. S.
- the crystal structure of iron arsenate is orthorhombic and is expressed by lattice constants a, b, and c (unit: 11 m).
- the accuracy of the measured lattice constants a, b, and c is ⁇ 0. 000 1 nm, which is sufficient to evaluate the lattice constant of iron arsenate.
- the amount of arsenic dissolved in the aqueous solution from the obtained iron arsenate powder is an important factor in evaluating the stability of the iron arsenate powder, and was obtained based on the Environmental Agency Notification No.13 method. After mixing iron arsenate powder and pH 6 water at a mass ratio of 1:10, stirring for 6 hours with a centrifugal machine, arsenic in the liquid filtered through a 0.45 ⁇ m pore size filter was used.
- the dissolution rate of arsenic was evaluated by a dissolution test that analyzes the amount of In the evaluation of the elution amount, the elution amount is small when the elution amount of arsenic from the iron arsenate powder is 0.3 mgZL or less, and the elution amount is large when the elution amount is 0.3 mg / L or more. It was judged.
- the amount of arsenic from the iron arsenate powder was small.
- Example 2 a mixed solution of an arsenic solution having an arsenic concentration of 20 g / L and an iron concentration of 22.36 gZL of ferrous sulfate was used.
- Example 3 an arsenic solution having an arsenic concentration of 30 gZL was used.
- Example 4 a mixture of ferrous sulfate solution with an iron concentration of 33.55 g / L was used.
- Example 4 an arsenic solution with an arsenic concentration of 50 g ZL and sulfuric acid with an iron concentration of 55.9 1 g / L Lattice constants and characteristics of the powder obtained by the same method as in Example 1 were examined in the same manner as in Example 1 except that a mixed solution in which an iron solution was mixed was used.
- the amount of arsenic eluted from the iron arsenate powder was small.
- the powder obtained by the same method as in Example 1 was examined for the lattice constant and characteristics in the same manner as in Example 1 except that the reaction time was changed to 7 hours.
- Example 2 The powder obtained by the same method as in Example 1 except that 4 L of the same mixed solution as in Example 1 was prepared and placed in a 5 L glass beaker. And the characteristics were investigated.
- Example 1 Instead of the ferrous sulfate solution in Example 1, use iron concentration (trivalent iron ion concentration) 53. 7 7 g / L of polyiron solution, and use a sealed container instead of a glass beaker.
- the body was examined for lattice constant and characteristics in the same manner as in Example 1.
- Arsenic concentration (trivalent arsenic ion concentration) 4 7. 97 g / L arsenic solution was used in place of the arsenic solution in Example 1, and iron concentration (3 in place of the ferrous sulfate solution in Example 1) using the value of iron ion concentration) poly iron solution of 53. 77 g / L, using a sealed container in place of the glass beaker, oxygen gas as ⁇ 2 partial pressure becomes 0. 3 MP a
- the powder was obtained by the same method as in Example 1 except that the reaction was carried out at 1 75 ° C for 5 hours using an auto-turve, and the lattice constant and characteristics were examined in the same manner as in Example 1. It was.
- the amount of arsenic eluted from the iron arsenate powder was large.
- the lattice constants a, b, and c are out of the above ranges, the arsenic elution amount is large, so that it is not suitable for stable storage.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Compounds Of Iron (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Saccharide Compounds (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Description
Claims
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/672,693 US8075868B2 (en) | 2007-08-24 | 2008-08-22 | Iron arsenate powder |
| CA2696325A CA2696325C (en) | 2007-08-24 | 2008-08-22 | Iron arsenate powder |
| AT08792799T ATE551297T1 (de) | 2007-08-24 | 2008-08-22 | Eisen(iii)-arsenat-pulver |
| PL08792799T PL2192089T3 (pl) | 2007-08-24 | 2008-08-22 | Sproszkowany arsenian 9 (v) żelaza (iii) |
| KR1020107003907A KR101375033B1 (ko) | 2007-08-24 | 2008-08-22 | 비산철 분말 |
| EP08792799A EP2192089B1 (en) | 2007-08-24 | 2008-08-22 | Ferric arsenate powder |
| AU2008292349A AU2008292349B2 (en) | 2007-08-24 | 2008-08-22 | Ferric arsenate powder |
| ES08792799T ES2384593T3 (es) | 2007-08-24 | 2008-08-22 | Polvo de arseniato férrico |
| CN2008801047811A CN101952204B (zh) | 2007-08-24 | 2008-08-22 | 砷酸铁粉末 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007218855A JP5107637B2 (ja) | 2007-08-24 | 2007-08-24 | 砒酸鉄粉末 |
| JP2007-218855 | 2007-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009028636A1 true WO2009028636A1 (ja) | 2009-03-05 |
Family
ID=40387349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2008/065474 Ceased WO2009028636A1 (ja) | 2007-08-24 | 2008-08-22 | 砒酸鉄粉末 |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US8075868B2 (ja) |
| EP (1) | EP2192089B1 (ja) |
| JP (1) | JP5107637B2 (ja) |
| KR (1) | KR101375033B1 (ja) |
| CN (1) | CN101952204B (ja) |
| AT (1) | ATE551297T1 (ja) |
| AU (1) | AU2008292349B2 (ja) |
| CA (1) | CA2696325C (ja) |
| ES (1) | ES2384593T3 (ja) |
| PL (1) | PL2192089T3 (ja) |
| WO (1) | WO2009028636A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009079237A (ja) * | 2007-09-25 | 2009-04-16 | Nikko Kinzoku Kk | スコロダイトの製造方法及びスコロダイト合成後液のリサイクル方法 |
| CN110981026A (zh) * | 2019-12-25 | 2020-04-10 | 昆明理工大学 | 一种有色冶炼含砷污酸无害化处置的方法 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4620100B2 (ja) * | 2007-10-23 | 2011-01-26 | Jx日鉱日石金属株式会社 | スコロダイトの製造方法及び洗浄方法 |
| JP2010202443A (ja) * | 2009-03-03 | 2010-09-16 | Dowa Metals & Mining Co Ltd | 砒酸鉄粉末およびその製造方法 |
| AU2010248410A1 (en) * | 2009-05-13 | 2011-11-03 | Dowa Metals & Mining Co., Ltd. | Scorodite-type iron-arsenic compound particles, production method, and arsenic-containing solid |
| JP5232806B2 (ja) * | 2010-01-25 | 2013-07-10 | Jx日鉱日石金属株式会社 | スコロダイトの製造方法及び洗浄方法 |
| CN102674526B (zh) * | 2012-05-14 | 2013-11-27 | 中南大学 | 一种从含砷溶液中沉砷稳砷的方法 |
| JP6102590B2 (ja) * | 2013-07-10 | 2017-03-29 | 住友金属鉱山株式会社 | スコロダイトの製造方法 |
| US20160215178A1 (en) | 2013-11-05 | 2016-07-28 | Mitsubishi Plastics, Inc. | Adhesive composition |
| KR102826561B1 (ko) | 2018-12-14 | 2025-06-30 | 미쯔비시 케미컬 주식회사 | 점착제 수지 조성물, 점착제 수지 경화물, 점착 시트 및 화상 표시 장치 적층체 |
| CN110980899A (zh) * | 2019-12-09 | 2020-04-10 | 昆明理工大学 | 一种FeS2/Fe复合材料稳定砷酸铁的方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53123368A (en) * | 1977-04-02 | 1978-10-27 | Dowa Mining Co | Removal of arsenic |
| JPS6124329A (ja) | 1984-06-18 | 1986-02-03 | モノリシツク・メモリーズ・インク | 検査及び検証回路を含むプログラム式アレー論理回路 |
| JPH11277075A (ja) | 1998-03-31 | 1999-10-12 | Dowa Mining Co Ltd | 硫酸鉄溶液中に存在する砒素の除去及び固定方法 |
| JP2000219920A (ja) | 1999-01-29 | 2000-08-08 | Dowa Mining Co Ltd | 砒素含有溶液からの砒素の除去および固定方法 |
| JP2005161123A (ja) | 2003-11-28 | 2005-06-23 | Mitsui Mining & Smelting Co Ltd | 煙灰からの砒素除去方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1376153A (en) * | 1919-12-11 | 1921-04-26 | Moore William | Insecticide |
| JPS54160590A (en) | 1978-06-09 | 1979-12-19 | Sumitomo Metal Mining Co | Method of separating and recovering arsenic from refining intermediate in state of sulfide containing arsenic |
| SU1662938A1 (ru) * | 1989-06-26 | 1991-07-15 | Тбилисский Государственный Университет | Способ получени арсената железа (III) |
| SU1730039A1 (ru) * | 1990-05-21 | 1992-04-30 | Тбилисский Государственный Университет Им.И.Джавахишвили | Способ получени арсената железа (III) |
| US7314604B1 (en) * | 1999-09-30 | 2008-01-01 | Billiton Intellectual Property, B.V. | Stable ferric arsenate precipitation from acid copper solutions whilst minimising copper losses |
| FI119438B (fi) * | 2005-05-03 | 2008-11-14 | Outokumpu Oy | Menetelmä arvometallien ja arseenin talteenottamiseksi liuoksesta |
-
2007
- 2007-08-24 JP JP2007218855A patent/JP5107637B2/ja active Active
-
2008
- 2008-08-22 CN CN2008801047811A patent/CN101952204B/zh active Active
- 2008-08-22 EP EP08792799A patent/EP2192089B1/en active Active
- 2008-08-22 PL PL08792799T patent/PL2192089T3/pl unknown
- 2008-08-22 AU AU2008292349A patent/AU2008292349B2/en active Active
- 2008-08-22 WO PCT/JP2008/065474 patent/WO2009028636A1/ja not_active Ceased
- 2008-08-22 KR KR1020107003907A patent/KR101375033B1/ko active Active
- 2008-08-22 ES ES08792799T patent/ES2384593T3/es active Active
- 2008-08-22 US US12/672,693 patent/US8075868B2/en active Active
- 2008-08-22 AT AT08792799T patent/ATE551297T1/de active
- 2008-08-22 CA CA2696325A patent/CA2696325C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53123368A (en) * | 1977-04-02 | 1978-10-27 | Dowa Mining Co | Removal of arsenic |
| JPS6124329A (ja) | 1984-06-18 | 1986-02-03 | モノリシツク・メモリーズ・インク | 検査及び検証回路を含むプログラム式アレー論理回路 |
| JPH11277075A (ja) | 1998-03-31 | 1999-10-12 | Dowa Mining Co Ltd | 硫酸鉄溶液中に存在する砒素の除去及び固定方法 |
| JP2000219920A (ja) | 1999-01-29 | 2000-08-08 | Dowa Mining Co Ltd | 砒素含有溶液からの砒素の除去および固定方法 |
| JP2005161123A (ja) | 2003-11-28 | 2005-06-23 | Mitsui Mining & Smelting Co Ltd | 煙灰からの砒素除去方法 |
Non-Patent Citations (2)
| Title |
|---|
| G. S. PAWLEY: "Unit-Cell Refinement From Powder Diffraction Scans", J. APPL. CRYST., vol. 14, 1996, pages 357 - 361 |
| R. W. CHEARY; A. COELHO: "A Fundamental Parameters Approach to X-ray Line-Profile Fitting", J. APPL. CRYST., vol. 25, 1998, pages 109 - 121 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009079237A (ja) * | 2007-09-25 | 2009-04-16 | Nikko Kinzoku Kk | スコロダイトの製造方法及びスコロダイト合成後液のリサイクル方法 |
| CN110981026A (zh) * | 2019-12-25 | 2020-04-10 | 昆明理工大学 | 一种有色冶炼含砷污酸无害化处置的方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE551297T1 (de) | 2012-04-15 |
| AU2008292349B2 (en) | 2013-02-21 |
| EP2192089A1 (en) | 2010-06-02 |
| KR101375033B1 (ko) | 2014-03-14 |
| JP2009051689A (ja) | 2009-03-12 |
| EP2192089A4 (en) | 2011-02-09 |
| AU2008292349A1 (en) | 2009-03-05 |
| EP2192089B1 (en) | 2012-03-28 |
| ES2384593T3 (es) | 2012-07-09 |
| JP5107637B2 (ja) | 2012-12-26 |
| CA2696325A1 (en) | 2009-03-05 |
| US8075868B2 (en) | 2011-12-13 |
| PL2192089T3 (pl) | 2012-07-31 |
| CN101952204A (zh) | 2011-01-19 |
| US20110027167A1 (en) | 2011-02-03 |
| CA2696325C (en) | 2013-07-09 |
| KR20100044229A (ko) | 2010-04-29 |
| CN101952204B (zh) | 2012-10-17 |
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