JPS63291678A - Treatment of aluminum dross - Google Patents
Treatment of aluminum drossInfo
- Publication number
- JPS63291678A JPS63291678A JP62123649A JP12364987A JPS63291678A JP S63291678 A JPS63291678 A JP S63291678A JP 62123649 A JP62123649 A JP 62123649A JP 12364987 A JP12364987 A JP 12364987A JP S63291678 A JPS63291678 A JP S63291678A
- Authority
- JP
- Japan
- Prior art keywords
- aluminium
- dross
- aluminum
- aluminum dross
- mixture
- 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.)
- Pending
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 11
- 235000015170 shellfish Nutrition 0.000 claims description 10
- 238000010304 firing Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 abstract description 5
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 abstract description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 3
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 3
- 239000004021 humic acid Substances 0.000 abstract description 3
- 239000002440 industrial waste Substances 0.000 abstract description 3
- 239000004571 lime Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000007670 refining Methods 0.000 abstract description 3
- 239000004927 clay Substances 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 abstract 6
- 150000007524 organic acids Chemical class 0.000 abstract 1
- 235000005985 organic acids Nutrition 0.000 abstract 1
- CAVCGVPGBKGDTG-UHFFFAOYSA-N alumanylidynemethyl(alumanylidynemethylalumanylidenemethylidene)alumane Chemical compound [Al]#C[Al]=C=[Al]C#[Al] CAVCGVPGBKGDTG-UHFFFAOYSA-N 0.000 description 4
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241001474374 Blennius Species 0.000 description 1
- 241000255789 Bombyx mori Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 101100460719 Mus musculus Noto gene Proteins 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 101100187345 Xenopus laevis noto gene Proteins 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、新規なアルミドロスの処理方法に関するもの
である。さらに詳しくは、アルミニウム精錬工程などか
ら生成する産業廃棄物であるアルミドロスに、天然に産
出する貝化石を混合し、これを熱処理してアルミドロス
を無害化する方法に関するものである。これにより処理
の困難なアルミドロスを無害化し、貝化石の新しい用途
を開拓するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a novel method for treating aluminum dross. More specifically, the present invention relates to a method in which naturally occurring shell fossils are mixed with aluminum dross, which is an industrial waste generated from aluminum refining processes, and the mixture is heat-treated to render the aluminum dross harmless. This will render aluminum dross, which is difficult to process, harmless and open up new uses for shellfish fossils.
アルミドロスはまたアルミ残灰とも呼ばれ、アルミニウ
ム精錬の際またはアルミニウム合金の熔解などの際に酸
化物として生成するものである。Aluminum dross is also called aluminum residual ash, and is produced as an oxide during aluminum refining or melting of aluminum alloy.
このアルミドロスは、なお金属アルミニウムを相当量た
とえば１０重置火程度含有するほか、窒化アルミニウム
や炭化アルミニウムなどもかなりの量例えば、５〜２０
重景％含有している。このアルミドロスは、その中のア
ルミニウム成分を回収するために再度熔解処理されるが
、アルミニウムの回収にも限界があり、最後には産業廃
棄物として捨てられる。しかしながら、このアルミドロ
スの中の窒化アルミニウムや炭化アルミニウムなどは水
と反応すると有害なアンモニアや炭化水素を発生するの
で、簡単に廃棄する訳にもいかず、非常に処理の厄介な
ものである。This aluminum dross still contains a considerable amount of metallic aluminum, for example, about 10 times a day, and also a considerable amount of aluminum nitride and aluminum carbide, for example, 5 to 20 times.
Contains % heavy weight. This aluminum dross is melted again to recover the aluminum component within it, but there is a limit to the recovery of aluminum, and in the end it is discarded as industrial waste. However, aluminum nitride and aluminum carbide in this aluminum dross generate harmful ammonia and hydrocarbons when they react with water, so they cannot be easily disposed of and are extremely difficult to dispose of.
このようなアルミドロスの利用方法として、これまで種
々の提案がなされている０例えば、特公昭２３−３４９
号、特公昭２６−１１２４号、特公昭５Ｂ−５７０’１
号、特開昭５１−１２４１１７号、特開昭５２−１５２
９２８号、特開昭５６−７８４６１号は、アルミドロス
に石灰石やドロマイトを加えてアルミナセメントを製造
する方法を提案している、また特開昭４７−３４５１７
号、特開昭４８−６４１０６号は、アルミドロスの力゛
ス放出性に着目して、発泡もしくは多孔質のコンクリー
トとすることを開示している。Various proposals have been made to date on how to use aluminum dross. For example,
No., Special Publication No. 26-1124, Special Publication No. 5B-570'1
No., JP-A-51-124117, JP-A-52-152
No. 928, JP-A No. 56-78461 proposes a method for producing alumina cement by adding limestone or dolomite to aluminum dross, and JP-A No. 47-34517
No. 48-64106 discloses the use of aluminum dross to form foamed or porous concrete by paying attention to the force release properties of aluminum dross.
しかしながら、いずれも大量に生成するアルミドロスの
完全有効利用にはほど遠く、低コストで無害化して埋め
立て地等に廃棄できるようにすることが一番望ましいこ
とである。しかしこの点について未だ成功した例はない
。However, these methods are far from fully effective utilization of aluminum dross, which is produced in large quantities, and it is most desirable to make it harmless at low cost so that it can be disposed of in a landfill or the like. However, there have been no successful cases in this regard.
本発明者らは、この点につき鋭意研究を進めた結果、天
然に産出する貝化石を利用することによって、簡単に低
コストでアルミドロスを無害化し得ることを発見した。As a result of intensive research on this point, the present inventors discovered that aluminum dross can be rendered harmless easily and at low cost by using naturally occurring shellfish fossils.
貝化石は、我が国では能登半島近傍の富山、石川地方に
多く産出するもので、千数百万年前の第３紀中新世期頃
の亜熱帯気象期に海中に棲息した魚貝類、原生微生物、
海草などの動植物の遺骸やその破片が堆積、化石化した
ものと考えられており、カルシウム、シリカなどの無機
質の他、フミン酸などの有機質成分も含有している。貝
化石の利用も、これまで種々提案されており、土壌改良
剤の他例えば、特開昭５２−７３７８号および５２−１
４０４８４号はこれを熱処理して結晶水を放出させて、
排水浄化のための吸着剤とし、特開昭６１−５２８７１
号はへ゛インタ゛−とともに焼結して消臭剤とすること
を提案している。Fossil shells are found in abundance in the Toyama and Ishikawa regions near the Noto Peninsula in Japan, and are fossils of fish, shellfish, and protozoan microorganisms that lived in the sea during the subtropical climate period around the Miocene period of the Tertiary period, several million years ago. ,
It is believed that the remains of seaweed and other animals and plants and their fragments have been deposited and fossilized, and it contains inorganic substances such as calcium and silica, as well as organic components such as humic acid. Various uses of shellfish fossils have been proposed so far, and in addition to soil improvement agents, for example, JP-A-52-7378 and JP-A-52-1
No. 40484 heat-treated this to release crystal water,
As an adsorbent for wastewater purification, JP-A-61-52871
No. 2 proposes that it be sintered together with integer to make a deodorant.
しかしながら、いずれの公知技術も、アルミドロスと貝
化石とを組み合わせて利用することを開示したものはな
い。However, none of the known techniques discloses the use of aluminum dross and shell fossils in combination.
本発明は、従来その処理に困っていたアルミドロスと、
産出量はありながら有効な利用があまりなされていなか
った貝化石とを組み合わせて使用し、アルミドロスを無
害化し、産業公害を解消すると同時に、残土などと一緒
に埋め立てなどに利用できるようにしようとするもので
ある。The present invention solves aluminum dross, which has conventionally been difficult to process.
By combining fossil shells, which have been produced in large quantities but have not been used effectively, we aim to render aluminum dross harmless, eliminate industrial pollution, and at the same time make it possible to use it in landfills together with leftover soil. It is something to do.
すなわち本発明は、アルミドロス１００重量部に対し貝
化石 １０〜２００重量部を混合し、温度５００〜１３
００”Ｃで焼成することを特徴とするアルミドロスの処
理方法を提供しようとするものである。That is, in the present invention, 10 to 200 parts by weight of shellfish fossils are mixed with 100 parts by weight of aluminum dross, and the mixture is heated at a temperature of 500 to 13%.
The present invention aims to provide a method for processing aluminum dross, which is characterized by firing at 00''C.
本発明は、このように構成したので、アルミドロス中の
窒化アルミニウムや炭化アルミニウム等が貝化石と反応
しあるいは吸着されて無害化されるのである。Since the present invention is configured in this manner, aluminum nitride, aluminum carbide, etc. in the aluminum dross reacts with or is adsorbed to the shellfish fossil, and is rendered harmless.
貝化石がどのようなメカニス゛ムでアルミドロスを無害
化するかについては正確には判っていない。It is not known exactly what mechanism fossil shells use to render alumidross harmless.
しかしながら、貝化石はその生成の由来がらして成分中
にＣａ、Ｓｉ、Ｆｅ等の無機物の他にフミン酸等の有機
物も含有しているところから、これらが焼成時の熱によ
りアルミドロス中の窒化アルミニウムや炭化アルミニウ
ムと反応し、これらを分解するかまたは不活性なものに
するものと考えられている。However, due to the origin of their formation, fossil shells contain inorganic substances such as Ca, Si, and Fe, as well as organic substances such as humic acid. It is thought to react with aluminum nitride and aluminum carbide, decomposing them or rendering them inert.
アルミドロスに対する貝化石の混合割合は、アルミドロ
ス中の有害成分を無害化できる菫であればよいが、好ま
しくはアルミドロス１００型皿部に対して貝化石１０〜
２００重量部、より好ましくは１５〜７０、さらに好ま
しくは２０〜５０重量部の範囲である。The mixing ratio of shellfish fossils to aluminum dross may be any violet that can render harmful components in aluminum dross harmless, but preferably 10 to 10 shell fossils to aluminum dross 100 type dish part.
The amount is in the range of 200 parts by weight, more preferably 15 to 70 parts by weight, even more preferably 20 to 50 parts by weight.
焼成温度は、比較的低温で処理できるのが本発明の特徴
であるが、当然時間との関係ででも変わってくる０通常
は５００〜１３００”Ｃ１好ましくは５５０〜１２００
℃、より好ましくは６００〜１０００℃、さらに好まし
くは６５０〜９００”Ｃの範囲である。The firing temperature is a feature of the present invention that it can be processed at a relatively low temperature, but it naturally changes depending on the time.Normally 500-1300"C1 Preferably 550-1200"
℃, more preferably in the range of 600 to 1000''C, and still more preferably in the range of 650 to 900''C.
焼成装置は、通常のキルン例えば、生石灰焼成用のロー
タリーキルンでもよいし、電気炉を用いてもよい。The firing device may be a normal kiln, such as a rotary kiln for firing quicklime, or an electric furnace.
アルミドロスおよび貝化石は、適当な大きさに粉砕して
、あらがしめ混合しあるいは混合しないで焼成キルンに
投入してもよい、この場合、必要に応じて他の成分例え
ば、石灰、粘土等を配合してもよい
本発明の内容をさらに詳細に説明するために、以下に実
施例を示す、実施例における部は、特記しない限り蚕で
重量部である。Aluminum dross and shellfish fossils may be crushed into appropriate sizes, roughened, and mixed or fed into a firing kiln without being mixed. In this case, other ingredients such as lime, clay, etc. may be added as necessary. In order to explain in more detail the contents of the present invention, which may be blended, Examples are shown below. Unless otherwise specified, parts in the Examples are parts by weight based on silkworms.
焼−或」Ｊυ
アルミドロス １００ 部
貝化石 ３０ 部
以上の原材料の総量的３０００ｋｇを、焼成炉に約１０
００ ｋｇ／時間の割合で装入し、重油を燃料として、
炉内温度約８５０℃で４時間焼成した。A total of 3,000 kg of raw materials, including 100 parts of aluminum dross and 30 parts of shellfish fossils, were put into a firing furnace for about 10 parts.
Charged at a rate of 00 kg/hour, using heavy oil as fuel,
It was fired for 4 hours at a furnace temperature of about 850°C.
ここに使用した焼成炉は、石灰焼成用の中型ロータリー
キルンであり、能力２００Ｔ／日、内径的２．４川、長
さ約４２ｍ、回転数１．２〜１．３７分のものであった
。The kiln used here was a medium-sized rotary kiln for calcining lime, with a capacity of 200 T/day, an inner diameter of 2.4 mm, a length of about 42 m, and a rotation speed of 1.2 to 1.37 minutes.
Ｌ４に１
焼成物の一部を採り、粒径的２〜３ｗｚの大きさに粉砕
して試料とする。Take a part of the fired product to L4 and crush it to a particle size of 2 to 3 wz to use as a sample.
容積的１０１の鉄製の容器に５１の水を入れ、これに試
料的ＩＡＩ？を投入し、沸騰するまで加熱し、約２時間
沸騰を続ける。Pour 51 of water into an iron container with a volume of 101, and add sample IAI? Pour in the water, heat until it boils, and continue boiling for about 2 hours.
この間、容器から発生する蒸気からは、なんら不快臭は
感じられなかった。During this time, no unpleasant odor was detected from the steam generated from the container.
［発明の効果］
アルミニウム精練の際やアルミニウム合金の熔解などの
際に生成し、従来その処理に困っていたアルミドロスを
、本発明方法により簡単な焼成により無害化することが
できるので、アルミニウム精練工業およびアルミニウム
加工工業にとって有利であるばかりでなく、土地造成の
資源としても有用な材料を提供することができる。[Effects of the Invention] The method of the present invention makes it possible to render harmless aluminum dross, which is generated during aluminum smelting or melting of aluminum alloys and has been difficult to dispose of, by simple firing. It can provide materials that are not only advantageous for industry and aluminum processing industry, but also useful as a resource for land reclamation.
Claims (1)
で焼成することを特徴とするアルミドロスの処理方法。[Claims] 10 to 200 parts by weight of shellfish fossils are mixed with 100 parts by weight of aluminum dross, and the temperature is 500 to 1300°C.
A method for processing aluminum dross, which is characterized by firing the aluminum dross.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62123649A JPS63291678A (en) | 1987-05-22 | 1987-05-22 | Treatment of aluminum dross |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62123649A JPS63291678A (en) | 1987-05-22 | 1987-05-22 | Treatment of aluminum dross |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63291678A true JPS63291678A (en) | 1988-11-29 |
Family
ID=14865826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62123649A Pending JPS63291678A (en) | 1987-05-22 | 1987-05-22 | Treatment of aluminum dross |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63291678A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995008516A1 (en) * | 1993-09-23 | 1995-03-30 | Alcan International Limited | Process for the preparation of calcium aluminates from aluminum dross residues |
-
1987
- 1987-05-22 JP JP62123649A patent/JPS63291678A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995008516A1 (en) * | 1993-09-23 | 1995-03-30 | Alcan International Limited | Process for the preparation of calcium aluminates from aluminum dross residues |
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