JPS6047208B2 - Method for producing silver peroxide - Google Patents
Method for producing silver peroxideInfo
- Publication number
- JPS6047208B2 JPS6047208B2 JP53050915A JP5091578A JPS6047208B2 JP S6047208 B2 JPS6047208 B2 JP S6047208B2 JP 53050915 A JP53050915 A JP 53050915A JP 5091578 A JP5091578 A JP 5091578A JP S6047208 B2 JPS6047208 B2 JP S6047208B2
- Authority
- JP
- Japan
- Prior art keywords
- silver
- peroxide
- silver peroxide
- producing silver
- producing
- 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
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Catalysts (AREA)
Description
【発明の詳細な説明】
本発明は、電池、特にカメラの露出計、腕時計、その他
小型電気機器等に広く用いられている一次電池に使用す
る過酸化銀の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing silver peroxide for use in batteries, particularly primary batteries that are widely used in camera light meters, wristwatches, and other small electrical appliances.
従来、過酸化銀は、アルカリ媒体中で純銀や銀化合物例
えは硝酸銀等の粉末を陽極酸化又は酸化剤により酸化し
て得る化学的方法や、純銀の粉末を酸化性雰囲気中でオ
ゾンや放電により酸化して得る物理的方法で製造されて
いた。Conventionally, silver peroxide has been obtained by chemical methods such as anodic oxidation or oxidation of powdered silver compounds such as silver nitrate in an alkaline medium or by oxidizing pure silver powder in an oxidizing atmosphere with ozone or electrical discharge. It was produced by a physical method of oxidation.
然し乍ら、これら従来の製造方法により得た過酸化銀は
、電気化学的安定性が不十分で、高い自己放電性を有し
、分解ガス発生量が多い為、長時間の使用が要求される
一次電池に使用するには不適当であつた。However, silver peroxide obtained by these conventional production methods has insufficient electrochemical stability, has high self-discharge properties, and generates a large amount of decomposed gas, so it is difficult to use as a primary material that requires long-term use. It was unsuitable for use in batteries.
本発明は、上記欠点を解消すべくなされたものであり、
自己放電性が低く、分解ガス発生量の少ない過酸化銀の
製造方法を提供せんとするものである。The present invention has been made to solve the above-mentioned drawbacks,
It is an object of the present invention to provide a method for producing silver peroxide that has low self-discharge properties and generates a small amount of decomposed gas.
本発明の過酸化銀の製造方法は、銀−０．００１〜１．
０ｗ／ ０アルミニウム合金の粉末を化学的方法又は物
理的方法により酸化して過酸化銀を得ることを特徴とす
るものてある。The method for producing silver peroxide of the present invention includes silver-0.001 to 1.
It is characterized in that silver peroxide is obtained by oxidizing 0w/0 aluminum alloy powder by a chemical method or a physical method.
本発明の過酸化銀の製造方法に於いて、その素材に銀−
アルミニウム合金を使用する理由は、純銀が酸化される
際にアルミニウムが同時に酸化され、触媒作用を有する
からでありまた銀−アルミニウム合金のアルミニウムの
添加量を０．００１〜１．０Ｗ／ ０としたのは、０．
００１ｗ／０未満ではアルミナの触媒作用が見られす、
１．０ｗ／ ０を超えると、分解ガス発生量が多くなり
、０．００１〜１．０ｗ／ｏの範囲内てはアルミナの触
媒作用により熱力学的安定性の高い過酸化銀を得ること
ができ、自己分解ガス発生量が少ないからである。In the method for producing silver peroxide of the present invention, silver-
The reason for using an aluminum alloy is that when pure silver is oxidized, aluminum is oxidized at the same time and has a catalytic effect, and the amount of aluminum added to the silver-aluminum alloy was set to 0.001 to 1.0 W/0. is 0.
At less than 001w/0, the catalytic action of alumina is seen.
If it exceeds 1.0 w/o, the amount of cracked gas generated increases, and within the range of 0.001 to 1.0 w/o, it is difficult to obtain silver peroxide with high thermodynamic stability due to the catalytic action of alumina. This is because the amount of self-decomposition gas generated is small.
以下本発明による過酸化銀の製造方法の効果を明瞭なら
しめる為にその具体的な実施例と従来例について説明す
る。In order to clarify the effects of the method for producing silver peroxide according to the present invention, specific examples and conventional examples will be described below.
実施例 １
４００メッシュよりも細い銀−０．０８ｗ／ ０アルミ
ニウム合金の粉末を、銀重量て４０ｇ用いて水酸化ナト
リウム１００ｙの液１１中（液温８５＊Ｃ）に添加した
。Example 1 Silver-0.08w/0 aluminum alloy powder finer than 400 mesh was added to 100y of sodium hydroxide in liquid 11 (liquid temperature 85*C) using 40g of silver.
次に過酸化カリウム１４０ｇを徐々に加え８フ時間攪拌
しながら熟成し、然る後その生成物をろ過し、乾燥して
過酸化銀を得たところ増加重量は５．９ｇであつた。実
施例 ２２００メッシュよりも細い銀−Ｏ、００５Ｗ／
０アルミ５ニウム合金の粉末を、銀重量で１００ｙ１
０−１ｗｒｍＨｇ酸素ガス雰囲気中に入れ、オゾン発生
装置によりオゾンを送り込んて酸化して、過酸化銀を得
たところ、増加重量は１４．８ダであつた。Next, 140 g of potassium peroxide was gradually added and the mixture was aged with stirring for 8 hours, after which the product was filtered and dried to obtain silver peroxide, which had an increased weight of 5.9 g. Example Silver-O thinner than 2200 mesh, 005W/
0 aluminum 5 nium alloy powder, silver weight 100y1
When placed in a 0-1 wrmHg oxygen gas atmosphere and oxidized by feeding ozone with an ozone generator, silver peroxide was obtained, and the weight increase was 14.8 Da.
従来例１
４００メッシュよりも細い純銀の粉末４０ｆを実施例１
と同様にして過酸化銀を得たところ、増加重量は５．９
ｙであつた。Conventional Example 1 Example 1 Pure silver powder 40f finer than 400 mesh
When silver peroxide was obtained in the same manner as above, the weight increase was 5.9
It was y.
従来例２
２００メッシュよりも細い純銀の粉末１００ｙを実施例
２と同様にして過酸化銀を得たところ、増加重量は１４
．８ｙであつた。Conventional Example 2 When silver peroxide was obtained using 100y of pure silver powder finer than 200 mesh in the same manner as in Example 2, the increased weight was 14
．． It was 8y.
然してかようにして得られた実施例１、２従来例１、２
の各過酸化銀の粉末を夫々１ｙづつ取り出し、５０ｃｃ
の４０％ＫＯＨ溶液を満たしたガラス容器中に封入し、
６０℃に保つて５時間分解ガス発生量を測定したところ
、図のグラフに示すような結果を得た。Examples 1 and 2 thus obtained Conventional Examples 1 and 2
Take out 1 y of each silver peroxide powder and add 50 cc.
sealed in a glass container filled with 40% KOH solution,
When the amount of decomposed gas generated was measured for 5 hours while maintaining the temperature at 60°C, the results shown in the graph of the figure were obtained.
図のグラフで明らかなように実施例１、２（図中Ａ，ｂ
）の過酸化銀は、従来例１、２（図中Ｃ，ｄ）の過酸化
銀よりも分解ガス発生量の少いことが判る。As is clear from the graph in the figure, Examples 1 and 2 (A, b in the figure)
) shows that the amount of decomposed gas generated is smaller than that of conventional examples 1 and 2 (C and d in the figure).
以上詳記した通り本発明によれば、分解ガスの発生量が
少く自己放電性が低くて電気化学的に安定した過酸化銀
を製造できるという優れた効果が有る。As detailed above, according to the present invention, there is an excellent effect that silver peroxide can be produced which is electrochemically stable due to a small amount of decomposition gas generated and low self-discharge property.
図は本発明の製造方法の実施例によつて得た過酸化銀と
、従来の製造方法によつて得た過酸化銀のガス発生量を
示すグラフである。The figure is a graph showing the gas generation amount of silver peroxide obtained by an example of the production method of the present invention and silver peroxide obtained by a conventional production method.
Claims (1)
．００１〜１．０ｗ／０アルミニウム合金の粉末を化学
的方法又は物理的方法により酸化して過酸化銀を得るこ
とを特徴とする過酸化銀の製造方法。1 In producing silver peroxide for primary batteries, silver-0
．． A method for producing silver peroxide, which comprises obtaining silver peroxide by oxidizing powder of 001 to 1.0 w/0 aluminum alloy by a chemical method or a physical method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53050915A JPS6047208B2 (en) | 1978-04-28 | 1978-04-28 | Method for producing silver peroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53050915A JPS6047208B2 (en) | 1978-04-28 | 1978-04-28 | Method for producing silver peroxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54142196A JPS54142196A (en) | 1979-11-06 |
| JPS6047208B2 true JPS6047208B2 (en) | 1985-10-21 |
Family
ID=12872070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53050915A Expired JPS6047208B2 (en) | 1978-04-28 | 1978-04-28 | Method for producing silver peroxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047208B2 (en) |
-
1978
- 1978-04-28 JP JP53050915A patent/JPS6047208B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54142196A (en) | 1979-11-06 |
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