JP3122737B2 - Manufacturing method of alumina cement - Google Patents
Manufacturing method of alumina cementInfo
- Publication number
- JP3122737B2 JP3122737B2 JP04348243A JP34824392A JP3122737B2 JP 3122737 B2 JP3122737 B2 JP 3122737B2 JP 04348243 A JP04348243 A JP 04348243A JP 34824392 A JP34824392 A JP 34824392A JP 3122737 B2 JP3122737 B2 JP 3122737B2
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- alumina cement
- limestone
- cao
- manufacturing
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/32—Aluminous cements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アルミサッシのような
アルミニウムまたはアルミニウム合金製品の表面処理の
際に生成するアルミニウム化合物を原料としたアルミナ
セメントの製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing alumina cement from an aluminum compound produced during the surface treatment of an aluminum or aluminum alloy product such as an aluminum sash.
【０００２】[0002]
【従来の技術】アルミナセメントは、アルミナと石灰を
含む原料を適当に混合して、溶融または焼結するまで焼
成した後、これを微粉砕して得られるものである。2. Description of the Related Art Alumina cement is obtained by appropriately mixing a raw material containing alumina and lime, firing it until it is melted or sintered, and then pulverizing it.
【０００３】アルミナセメントは通常のポルトランドセ
メントと異なり、その組成はカルシウムアルミネートか
らなり、Ａｌ2Ｏ3・ＣａＯが主成分である。[0003] Alumina cement differs from ordinary Portland cement in the composition of calcium aluminate, and is mainly composed of Al 2 O 3 · CaO.
【０００４】したがって、従来はアルミナ質原料として
高品位のＡｌ2Ｏ3成分の含有率が高いボーキサイトある
いは紅土等が用いられ、石灰を含む成分としては石灰石
あるいは石炭灰、製鉄スラグ等が用いられている。Accordingly, conventionally, bauxite or red clay having a high content of a high-grade Al 2 O 3 component has been used as an alumina-based material, and limestone, coal ash, iron-made slag, etc. have been used as components containing lime. I have.
【０００５】しかし、上記ボーキサイトは価格が高いの
が問題であった。[0005] However, the above-mentioned bauxite has a problem that the price is high.
【０００６】一方、アルミニウムまたはアルミニウム合
金の表面加工時にはスラッジあるいは結晶状態で水酸化
アルミニウムまたはその他のアルミニウム化合物が副生
する。これらは従来より資源のリサイクル化に対して未
解決材料であった。On the other hand, during surface processing of aluminum or an aluminum alloy, aluminum hydroxide or other aluminum compounds are by-produced in a sludge or crystalline state. These have been unresolved materials for resource recycling.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、価格の高い
ボーキサイト等の替りにアルミニウムまたはアルミニウ
ム合金製品例えばアルミサッシの表面処理の際に生成す
るアルミニウム化合物を利用して原価の安いアルミナセ
メントの製造方法を提供しようとするものである。SUMMARY OF THE INVENTION The present invention is directed to the production of low-cost alumina cement by utilizing aluminum or aluminum alloy products, for example, aluminum compounds produced during the surface treatment of aluminum sashes, in place of expensive bauxite and the like. It seeks to provide a way.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
の本発明の構成は、アルミニウムまたはアルミニウム合
金製品の表面処理の際に生成するアルミニウム化合物と
石灰石とを原料とし、アルミニウム化合物と石灰石の量
をＡｌ2Ｏ3とＣａＯ基準に換算して、モル比でＡｌ
2Ｏ3：ＣａＯが０．５：１〜１：０．５の範囲になるよ
うに混合し、１５００〜１６００℃で溶融してカルシウ
ムアルミネートを生成させ、これを微粉砕してアルミナ
セメントとするアルミナセメントの製造方法である。In order to solve the above-mentioned problems, the structure of the present invention uses an aluminum compound and limestone produced during the surface treatment of an aluminum or aluminum alloy product as raw materials, and the amount of the aluminum compound and limestone is reduced. Is converted to Al 2 O 3 and CaO standards, and the molar ratio of Al
2 O 3 : CaO is mixed in a range of 0.5: 1 to 1: 0.5, melted at 1500 to 1600 ° C. to produce calcium aluminate, and finely pulverized to obtain alumina cement. This is a method for producing alumina cement.
【０００９】アルミニウムまたはアルミニウム合金の表
面処理の際に生成するアルミニウム化合物とは主にゲル
状のアルミスラッジ、結晶状の水酸化アルミニウム及び
硫酸アルミニウム等である。The aluminum compounds formed during the surface treatment of aluminum or aluminum alloy are mainly gelled aluminum sludge, crystalline aluminum hydroxide and aluminum sulfate.
【００１０】アルミナセメントの原料としてこれ等の生
成物を利用するにはまず、原材料の組成分析を行い、Ａ
ｌ成分の含有率を把握する必要がある。In order to utilize these products as a raw material for alumina cement, first, the composition of the raw materials is analyzed, and A
It is necessary to know the content of the l component.
【００１１】本発明はこのように処理したアルミニウム
化合物と石灰石とを、それぞれＡｌ2Ｏ3：ＣａＯに換算
し、モル比でＡｌ2Ｏ3：ＣａＯが０．５：１〜１：０．
５の範囲になるように混合し、電気炉等で１５００〜１
６００℃で溶融してカルシウムアルミネートを生成さ
せ、型に流し込み、冷却する。According to the present invention, the thus treated aluminum compound and limestone are respectively converted into Al 2 O 3 : CaO, and the molar ratio of Al 2 O 3 : CaO is 0.5: 1 to 1: 0.
5 and mixed in an electric furnace or the like.
Melt at 600 ° C. to form calcium aluminate, pour into mold and cool.
【００１２】このカルシウムアルミネートを微粉砕し、
粒径約３μｍの微粒子からなるアルミナセメントとす
る。特にＣａＯ成分として石炭灰や高炉スラグを用いる
とＣＯ2に関する地球環境対策となりうる。This calcium aluminate is finely pulverized,
An alumina cement composed of fine particles having a particle size of about 3 μm is used. In particular, if coal ash or blast furnace slag is used as a CaO component, it can be a global environmental measure for CO 2 .
【００１３】[0013]
【作用】このようにして得られたアルミナセメントを水
と混合することによりポルトランドセメントの１／３の
時間で水和反応を起こし、水硬性物質、たとえば２Ｃａ
Ｏ・Ａｌ2Ｏ3・８Ｈ2Ｏが生成し、強固に結合した硬化
体が得られる。By mixing the alumina cement thus obtained with water, a hydration reaction takes place in 1/3 of the time of Portland cement, and a hydraulic substance such as 2Ca
O · Al 2 O 3 · 8H 2 O is produced, tightly bound cured product is obtained.
【００１４】このアルミナセメントの硬化体は通常のポ
ルトランドセメントよりも化学的抵抗性が高く、また、
耐熱温度も高い。The cured product of this alumina cement has higher chemical resistance than ordinary Portland cement, and
High heat resistance temperature.
【００１５】以下、実施例によって本発明を具体的に説
明する。Hereinafter, the present invention will be described in detail with reference to examples.
【００１６】[0016]
【実施例】アルミサッシをアルマイト処理、着色及び塗
装する表面処理工程で生成する水酸化アルミニウムと石
灰石をＡｌ2Ｏ3とＣａＯのモル比で１：１に混合し、電
気炉で１５５０℃で溶融してカルシウムアルミネートと
し、これをルツボ型に流し込んで常温まで冷却した。EXAMPLE Anodized aluminum sash, aluminum hydroxide and limestone produced in the surface treatment process of coloring and painting were mixed at a molar ratio of Al 2 O 3 and CaO of 1: 1 and melted at 1550 ° C. in an electric furnace. Then, calcium aluminate was poured into a crucible mold and cooled to room temperature.
【００１７】これをクラッシャーで２４０メッシュ程度
に粗粉砕し、更にボールミルで粒径約３μｍに微粉砕し
て、アルミナセメントとした。This was roughly pulverized to about 240 mesh with a crusher, and further finely pulverized to a particle size of about 3 μm with a ball mill to obtain alumina cement.
【００１８】このアルミナセメントに水を重量比で５０
％加え、よく混練し、テストピースの型で１日硬化させ
た。Water is added to this alumina cement in a weight ratio of 50.
%, Kneaded well, and cured in a test piece mold for one day.
【００１９】これを通常のポルトランドセメントで作製
したテストピースと比較のため、圧縮強度の試験をした
結果は下記表１のとおりであった。For comparison with a test piece made of ordinary Portland cement, the result of a compression strength test was as shown in Table 1 below.
【００２０】[0020]
【表１】 [Table 1]
【００２１】[0021]
【発明の効果】以上説明したように、本発明の方法によ
れば従来利用されていなかった副生アルミニウム化合物
を利用でき、かつそれを原料として製造したアルミナセ
メント成形物はポルトランドセメント成形物に比較して
約２倍の強度を有している。As described above, according to the method of the present invention, a by-product aluminum compound which has not been conventionally used can be used, and an alumina cement molded product produced from the compound can be compared with a Portland cement molded product. About twice the strength.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭49−107023（ＪＰ，Ａ) 特開 昭52−47820（ＪＰ，Ａ) 特開 昭56−78461（ＪＰ，Ａ) 特開 昭50−67320（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C04B 7/32 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-49-107023 (JP, A) JP-A-52-47820 (JP, A) JP-A-56-78461 (JP, A) JP-A 50-78461 67320 (JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) C04B 7/32
Claims (1)
品の表面処理の際に生成するアルミニウム化合物と石灰
石とを原料とし、アルミニウム化合物と石灰石の量をＡ
ｌ 2 Ｏ 3 とＣａＯ基準に換算して、モル比でＡｌ 2 Ｏ 3 ：Ｃ
ａＯが０．５：１〜１：０．５の範囲になるように混合
し、１５００〜１６００℃で溶融してカルシウムアルミ
ネートを生成させ、これを微粉砕してアルミナセメント
とすることを特徴とするアルミナセメントの製造方法。1. An aluminum or aluminum alloy product produced by surface treatment of aluminum compound and limestone as raw materials, and the amounts of aluminum compound and limestone are defined as A
Al 2 O 3 : C in terms of molar ratio in terms of l 2 O 3 and CaO
Mixing so that aO is in the range of 0.5: 1 to 1: 0.5
And melt at 1500-1600 ° C
To produce aluminate and pulverize it into alumina cement.
A method for producing alumina cement, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04348243A JP3122737B2 (en) | 1992-12-28 | 1992-12-28 | Manufacturing method of alumina cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04348243A JP3122737B2 (en) | 1992-12-28 | 1992-12-28 | Manufacturing method of alumina cement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06191907A JPH06191907A (en) | 1994-07-12 |
| JP3122737B2 true JP3122737B2 (en) | 2001-01-09 |
Family
ID=18395714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04348243A Expired - Fee Related JP3122737B2 (en) | 1992-12-28 | 1992-12-28 | Manufacturing method of alumina cement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3122737B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4680549B2 (en) * | 2004-08-19 | 2011-05-11 | 三菱マテリアル株式会社 | Hydraulic alumina composition for hydrous soil neutral solidifying material, method for producing the same, neutral solidifying material for hydrous soil, method for preventing heavy metal elution, and dehydration solidification method for highly hydrous soil |
| JP4690729B2 (en) * | 2005-01-14 | 2011-06-01 | 三菱マテリアル株式会社 | Hydraulic alumina composition for hydrous soil neutral solidifying material, method for producing the same, neutral solidifying material for hydrous soil, method for preventing heavy metal elution, and dehydration solidification method for highly hydrous soil |
| JP4837936B2 (en) * | 2005-04-20 | 2011-12-14 | 宇部興産株式会社 | Low alkali solidification material for hydrous soil and solidification treatment method |
-
1992
- 1992-12-28 JP JP04348243A patent/JP3122737B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06191907A (en) | 1994-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |