JPH0361516B2 - - Google Patents
Info
- Publication number
- JPH0361516B2 JPH0361516B2 JP1346182A JP1346182A JPH0361516B2 JP H0361516 B2 JPH0361516 B2 JP H0361516B2 JP 1346182 A JP1346182 A JP 1346182A JP 1346182 A JP1346182 A JP 1346182A JP H0361516 B2 JPH0361516 B2 JP H0361516B2
- Authority
- JP
- Japan
- Prior art keywords
- ferrous
- mine water
- coexists
- ferric
- ferrite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 229910001448 ferrous ion Inorganic materials 0.000 claims description 10
- 229910000859 α-Fe Inorganic materials 0.000 claims description 10
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 239000012298 atmosphere Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 239000002244 precipitate Substances 0.000 description 11
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 229910001447 ferric ion Inorganic materials 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 238000009775 high-speed stirring Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Removal Of Specific Substances (AREA)
Description
【発明の詳細な説明】
本発明は、Siが共存する第一鉄イオン含有坑水
の処理方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for treating ferrous ion-containing mine water in which Si coexists.
従来、第一鉄イオン含有坑水は第一鉄イオンを
第二鉄イオンに酸化後アルカリを加えて水酸化物
を生成して除去する方法がよく知られている。 Conventionally, a well-known method for removing ferrous ion-containing mine water is to oxidize ferrous ions to ferric ions and then add alkali to generate hydroxides.
他方、第一鉄と第二鉄を１：２の比率で共存す
る液にアルカリを添加して混合しフエライトを生
成する方法が知られている。しかしながら該方法
では液中にSiが共存するとフエライトの生成が阻
害され又は不可能になる。すなわちSiO2を
30ppm〜100ppm程度含有する第一鉄イオン含有
坑水からフエライトを生成することは難かしく、
通常Siが共存する第一鉄イオン含有坑水は第一鉄
イオンを第二鉄イオンに酸化後、アルカリを添加
して水酸化第二鉄を生成して処理される。この方
法によつて坑水を処理して多量生成される沈澱物
は埋立て投棄されるが、将来にわたつて多量に発
生する膨大な沈澱物量に対拠しうる埋立て地の選
定には困難をきたしており、沈澱物の有効利用が
早急に望まれている。 On the other hand, a method is known in which ferrite is produced by adding an alkali to a liquid containing ferrous iron and ferric iron at a ratio of 1:2 and mixing the mixture. However, in this method, if Si coexists in the liquid, the production of ferrite is inhibited or becomes impossible. i.e. SiO 2
It is difficult to produce ferrite from mine water containing ferrous ions, which contains about 30ppm to 100ppm.
Normally, mine water containing ferrous ions in which Si coexists is treated by oxidizing the ferrous ions to ferric ions, and then adding an alkali to produce ferric hydroxide. A large amount of precipitate generated by treating mine water using this method is disposed of in a landfill, but it is difficult to select a landfill site that can handle the enormous amount of precipitate that will be generated in the future. Therefore, effective utilization of the precipitate is urgently desired.
本発明の目的はこれら問題点を解決し、Siが共
存する第一鉄イオン含有坑水から有効利用可能な
フエライトを常温で生成する方法を提供すること
にある。 An object of the present invention is to solve these problems and provide a method for producing ferrite that can be effectively used at room temperature from mine water containing ferrous ions in which Si coexists.
即ち本発明による方法は、Siが共存する第一鉄
イオン含有坑水の処理に際し、先ず該坑水に、PH
５以下で酸素や空気を吹き込んだり、酸化性雰囲
気下で高速撹拌することによつて生成した第二鉄
含有沈澱物に、第一鉄と第二鉄の組成比が、Fe
（）／Fe（）＝1.5〜3.0になるように第一鉄含
有液及びアルカリ剤を加えてPH6.5以上で混合し、
該液を非酸化性雰囲気中に静置又は非酸化性雰囲
気中で撹拌して黒色の強磁性沈澱物（フエライ
ト）を生成することを特徴とする。 That is, in the method according to the present invention, when treating mine water containing ferrous ions in which Si coexists, the mine water is first treated with PH.
5 or less by blowing oxygen or air into the ferric iron-containing precipitate produced by high-speed stirring in an oxidizing atmosphere, the composition ratio of ferrous and ferric iron is
Add ferrous iron-containing liquid and alkaline agent so that () / Fe () = 1.5 to 3.0 and mix at pH 6.5 or higher,
The method is characterized in that the liquid is left standing in a non-oxidizing atmosphere or stirred in a non-oxidizing atmosphere to produce a black ferromagnetic precipitate (ferrite).
本発明の実施によつて生成されるフエライトは
電波吸収材料、磁性流体用原料などの微粒子磁性
粉末としての再利用が可能であり、廃棄物の有効
利用には誠に好ましいクローズドサイクルをもた
らす。 The ferrite produced by carrying out the present invention can be reused as particulate magnetic powder for radio wave absorbing materials, raw materials for magnetic fluids, etc., resulting in a closed cycle that is very favorable for the effective use of waste.
本発明の方法では、第二鉄含有沈澱物をPH５以
下で回収するがPH５を越えた第二鉄含有沈澱物は
坑水中のSiを高濃度吸着しており、フエライト生
成を阻害又は不可能にする。 In the method of the present invention, ferric-containing precipitates are collected at a pH of 5 or less, but ferric-containing precipitates with a pH of over 5 adsorb Si in mine water at high concentrations, inhibiting or making ferrite production impossible. do.
また、第二鉄含有沈澱物と第一鉄含有液は第一
鉄と第二鉄の組成比がFe（）／Fe（）＝1.5〜
3.0になるように混合しなければフエライトを生
成することはできない。 In addition, in the ferric-containing precipitate and the ferrous-containing liquid, the composition ratio of ferrous and ferric iron is Fe()/Fe()=1.5~
Ferrite cannot be produced unless it is mixed to a value of 3.0.
また本発明な方法に従つてフエライトを生成す
るためには、混合液のPHを6.5以上に調整しなけ
ればならない。 Furthermore, in order to produce ferrite according to the method of the present invention, the pH of the mixed solution must be adjusted to 6.5 or higher.
以下実施例により、本発明をさらに詳細に説明
する。 The present invention will be explained in more detail with reference to Examples below.
実施例
全Fe510ppm、Fe2+400ppm、Al100ppm、
SiO251ppmを含有する坑水を本発明の方法に従
つて以下のように処理した。すなわち坑水２に
CaCO3を添加してPH3.7を保持しながら酸素ガス
を吹き込んで溶存Fe2+を酸化し、該液を過し
て第二鉄の黄土色沈澱を得た。液は全
Fe2ppm、Al95ppm、SiO250ppmを含有してい
た。Example Total Fe 510ppm, Fe 2+ 400ppm, Al 100ppm,
Mine water containing 51 ppm SiO 2 was treated according to the method of the invention as follows. In other words, to mine water 2
CaCO 3 was added and dissolved Fe 2+ was oxidized by blowing oxygen gas while maintaining the pH at 3.7, and the solution was filtered to obtain an ocher-colored precipitate of ferric iron. The liquid is all
It contained 2ppm of Fe, 95ppm of Al, and 50ppm of SiO 2 .
次に該沈澱に2500ppmの硫酸第一鉄溶液200ml
を添加し、Ca（OH）2を加えてPH8.0で混合した。
液中の鉄の組成比はFe（）／Fe（）＝２であつ
た。次に該液を窒素雰囲気中に静置した。静置２
日後、沈澱物は黒色で強い磁性を示した。 Next, add 200ml of 2500ppm ferrous sulfate solution to the precipitate.
was added, Ca(OH) 2 was added and mixed at pH 8.0.
The composition ratio of iron in the liquid was Fe()/Fe()=2. Next, the solution was left standing in a nitrogen atmosphere. Stand still 2
After a few days, the precipitate was black and highly magnetic.
なお本発明において用いるアルカリは実施例に
示した炭酸カルシユウム、水酸化カルシユウム以
外に水酸化ナトリウム、水酸化カリウム等のアル
カリを用いても本発明の効果は変らない。 Note that the effects of the present invention will not change even if the alkali used in the present invention is other than the calcium carbonate and calcium hydroxide shown in the Examples, such as sodium hydroxide and potassium hydroxide.
Claims (1)
坑水の処理に際し、該坑水をPH５以下で酸化して
生成する第二鉄含有沈澱物に、第一鉄と第二鉄の
組成比がFe（）／Fe（）＝1.5〜3.0になるよう
に第一鉄含有液を添加し、アルカリを加えてPH
6.5以上で混合し、該液を非酸化性雰囲気中で静
置又は撹拌してフエライトを生成することを特徴
とするSiが共存する第一鉄イオン含有坑水の処理
方法。1 When treating mine water containing ferrous ions in which silicon (Si) coexists, the composition ratio of ferrous and ferric iron is Add ferrous iron-containing liquid so that Fe()/Fe()=1.5 to 3.0, add alkali and pH
A method for treating ferrous ion-containing mine water in which Si coexists, the method comprising mixing at a temperature of 6.5 or higher and leaving the solution standing or stirring in a non-oxidizing atmosphere to produce ferrite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1346182A JPS58131192A (en) | 1982-01-29 | 1982-01-29 | Treatment of ferrous ion-containing mine water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1346182A JPS58131192A (en) | 1982-01-29 | 1982-01-29 | Treatment of ferrous ion-containing mine water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58131192A JPS58131192A (en) | 1983-08-04 |
| JPH0361516B2 true JPH0361516B2 (en) | 1991-09-20 |
Family
ID=11833779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1346182A Granted JPS58131192A (en) | 1982-01-29 | 1982-01-29 | Treatment of ferrous ion-containing mine water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58131192A (en) |
-
1982
- 1982-01-29 JP JP1346182A patent/JPS58131192A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58131192A (en) | 1983-08-04 |
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