JPS6082626A - Method for reducing copper oxide powder - Google Patents
Method for reducing copper oxide powderInfo
- Publication number
- JPS6082626A JPS6082626A JP19032683A JP19032683A JPS6082626A JP S6082626 A JPS6082626 A JP S6082626A JP 19032683 A JP19032683 A JP 19032683A JP 19032683 A JP19032683 A JP 19032683A JP S6082626 A JPS6082626 A JP S6082626A
- Authority
- JP
- Japan
- Prior art keywords
- copper oxide
- oxide powder
- powder
- reduced
- furnace
- 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
Abstract
Description
【発明の詳細な説明】
本発明は酸化銅粉を還元する方法の改良に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for reducing copper oxide powder.
従来酸化銅粉は乾燥された後再溶解せしめ溶湯状態にお
いてこれを還元し、なるべく酸化成分の低い酸化銅にし
だ後、純銅と混合してアノードに使用しているものであ
る。然しなからこの方法では乾燥工程、溶解工程及び還
元工程の如く複雑な処理によるものであると共に美大な
エネルギーを必要とするため、コストが高くなるもので
あった。Conventionally, copper oxide powder is dried, then remelted and reduced in the molten state to form copper oxide with as low an oxidizing component as possible, which is then mixed with pure copper and used for an anode. However, this method requires complicated processing such as drying, dissolving, and reducing steps, and requires a large amount of energy, resulting in high costs.
なお上記の酸化鋼は銅製品の製造工程により発生するも
のであるが、この酸化銅を上記の如く処理する工程は銅
製品の製造工程と一負して連続することなく別工場又は
別工程により行われているものであった。The above-mentioned oxidized steel is generated during the manufacturing process of copper products, but the process of treating this copper oxide as described above is not continuous with the manufacturing process of copper products, but is carried out in a separate factory or in a separate process. It was something that was being done.
本発明はかかる現状に鑑み鋭意イｊｔ究を行った結果銅
化銅粉を低エネルギーにて容易に還元せしめ、これを後
工程に供給可能にした酸化銅粉の還元方法を見出したも
のである。即ち本発明方法は酸化銅粉供給口から欧化銅
粉を投入しガスバーナー噴出口からブタン、プロ・ぐン
佑のガスと空気との混合ガスフレームを１負出せしめて
、該酸化銅粉に吹付け１２００℃以上にて該酸化銅粉を
還元処理しこれを冷却せしめるものでろる。The present invention has been made in view of the current situation, and as a result of intensive research, we have discovered a method for reducing copper oxide powder that allows copper oxide powder to be easily reduced with low energy and can be supplied to subsequent processes. . That is, in the method of the present invention, copper oxide powder is introduced from the copper oxide powder supply port, a mixed gas flame of butane, pro-gunsuke gas, and air is discharged from the gas burner outlet, and the copper oxide powder is blown onto the copper oxide powder. The copper oxide powder is reduced at a temperature of 1200° C. or higher and then cooled.
本発明方法において、酸化銅粉の品質については特に限
定するものではなく、酸化銅粉中の酸素量が多い場合例
えば１５％程度のものはタフピッチ銅に還元し難く、酸
素量が少いもの例えば３０００ ｐｐｍのものはほとん
どタフどノチ銅に近く還元されるものである。なお酸化
銅粉の粒度については細粉化することによシ還元効率は
向上する。In the method of the present invention, there are no particular limitations on the quality of the copper oxide powder; if the copper oxide powder has a large amount of oxygen, for example around 15%, it will be difficult to reduce it to tough pitch copper, and if the copper oxide powder has a small amount of oxygen, for example 3000 ppm is almost reduced to tough copper. Regarding the particle size of the copper oxide powder, the reduction efficiency can be improved by making it finer.
又本発明方法における混合ガスフレームについてガス体
と空気との比率を一様に限定することが出来ないもので
ある。その理由は上記の如く酸化銅粉の品質に著しく影
響するものであり、酸素量が多い酸化銅粉の場合にはガ
ス量を多量に混合し、酸素拙の少い酸化銅粉の場合には
ガス量を少量混合すればよい。喪は、空気−燃料混合比
率が１．０５〜１２５程度のフレームを選定する事が好
ましい。空燃比が１２５以上の場合には危険性を伴うと
共に該ガスが十分に燃焼していないことを示すものであ
る。Furthermore, in the mixed gas flame in the method of the present invention, it is not possible to uniformly limit the ratio of gas to air. The reason for this is that, as mentioned above, it significantly affects the quality of copper oxide powder; in the case of copper oxide powder with a high oxygen content, a large amount of gas is mixed, and in the case of copper oxide powder with a low oxygen content, It is sufficient to mix a small amount of gas. It is preferable to select a frame with an air-fuel mixture ratio of about 1.05 to 125. If the air-fuel ratio is 125 or more, it is dangerous and indicates that the gas is not sufficiently combusted.
又還元処理後の冷却において空冷或はガス冷却による以
外に冷却水又はインゾロぎルアルコール中に入れて冷却
するとその効果が向上する。In addition, in cooling after the reduction treatment, the effect is improved if the material is cooled by placing it in cooling water or inzologyl alcohol instead of by air cooling or gas cooling.
次に本発明の実施例について説明する。Next, examples of the present invention will be described.
実施例（１）
図面に示す如く酸化銅粉還元炉１に設けた酸化銅粉供給
口２よシ酸化銅粉３（酸化景３０００ｐｐｌｎ、平均粒
子径２．５ ｉｎ ）を１２０ ｇ／ｒｎｉｎにて投入
し、一方ｆスバーナ噴出口４からブタンがス１１：空気
１との比率による混合ガスフレーム５を４６０ Ａ／ｍ
ｉｎの条件にて噴出せしめて該酸化銅粉に吹付けた。な
お酸化銅粉はフレームの前方に約３０（７７１離間せし
めて投入した。Example (1) As shown in the drawing, copper oxide powder 3 (oxide powder 3000 ppl, average particle diameter 2.5 inches) was fed at 120 g/rnin through a copper oxide powder supply port 2 provided in a copper oxide powder reduction furnace 1. On the other hand, from the f burner outlet 4, a mixed gas flame 5 with a ratio of 11 parts smoke to 1 part air was heated at 460 A/m.
The copper oxide powder was sprayed onto the copper oxide powder by ejecting it under the conditions of 100°C. The copper oxide powder was placed in front of the frame at a distance of about 30 (771 mm).
而して酸化銅粉はフレーム、酸化鋼ガイド６を通りバー
ナーフレームにより還元されつつ酸化銅出口よりフレー
ム圧力と自重によって吐出サレ、吐出ロアに設けたイソ
プロピルアルコール槽８内に落下し冷却された。なお燃
焼排ガスは排出口９より排出され、排ガス中の水素を測
定したところ１．５％であった。The copper oxide powder passed through the frame and the oxidized steel guide 6, was reduced by the burner frame, and fell from the copper oxide outlet under the flame pressure and its own weight into the isopropyl alcohol tank 8 provided at the discharge sag and the discharge lower, and was cooled. The combustion exhaust gas was discharged from the exhaust port 9, and the hydrogen content in the exhaust gas was measured to be 1.5%.
斯くして得た酸化銅粉の酸素量を測定した結果は５００
ｐｐｍであり、著しく酸素量が減少していることが認
められた。The result of measuring the amount of oxygen in the copper oxide powder thus obtained was 500.
ppm, and it was recognized that the amount of oxygen was significantly reduced.
て −１−５１絖責Ｈ計１テ１ト。-1-51 1 test, 1 test.
←う −。←U −.
以上詳述した如く本発明方法によれば簡単な工程により
且つ低エイルギーによって酸化銅粉を還元することが出
来ると共に連続的に後工程の操業を実施せしめる等顕著
な効果を有する。As described in detail above, the method of the present invention has remarkable effects such as being able to reduce copper oxide powder through simple steps and with low energy consumption, and allowing subsequent operations to be carried out continuously.
図面は本発明の酸化銅粉の還元方法を実施するための概
略脱明図である。
１・・・酸化銅粉還元炉、２・・酸化銅粉供給口、３・
・・酸化銅粉、４ ・ガスバーナー噴出口、５・・・混
合ガスフレーム、６・・・酸化銅ガイド、７・・・吐出
［」、８・・冷却槽、９・・排ガス口。The drawing is a schematic diagram for carrying out the method for reducing copper oxide powder of the present invention. 1...Copper oxide powder reduction furnace, 2...Copper oxide powder supply port, 3.
...Copper oxide powder, 4.Gas burner outlet, 5.Mixed gas flame, 6.Copper oxide guide, 7.Discharge['', 8.Cooling tank, 9.Exhaust gas port.
Claims (1)
ナ噴出口よシブタン、プロ７４７等０１７体と空気との
混合ガスフレームを噴出せしめて、該酸化銅粉に吹付け
これを加熱して該酸化銅粉を還元処理した後、冷却せし
めることを特徴とする酸化銅粉の還元方法。Copper oxide powder is introduced from the copper oxide powder supply port, and a mixed gas flame of Shibutane, Pro 747, etc. A method for reducing copper oxide powder, which comprises reducing the copper oxide powder and then cooling the powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19032683A JPS6082626A (en) | 1983-10-12 | 1983-10-12 | Method for reducing copper oxide powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19032683A JPS6082626A (en) | 1983-10-12 | 1983-10-12 | Method for reducing copper oxide powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6082626A true JPS6082626A (en) | 1985-05-10 |
Family
ID=16256317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19032683A Pending JPS6082626A (en) | 1983-10-12 | 1983-10-12 | Method for reducing copper oxide powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6082626A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI449673B (en) * | 2011-08-24 | 2014-08-21 | Subtron Technology Co Ltd | Method of forming copper-containing oxide |
| JP2016125066A (en) * | 2014-12-26 | 2016-07-11 | 大陽日酸株式会社 | Production method of fine metal particle |
-
1983
- 1983-10-12 JP JP19032683A patent/JPS6082626A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI449673B (en) * | 2011-08-24 | 2014-08-21 | Subtron Technology Co Ltd | Method of forming copper-containing oxide |
| JP2016125066A (en) * | 2014-12-26 | 2016-07-11 | 大陽日酸株式会社 | Production method of fine metal particle |
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