JPS5830922B2 - Method for producing amalgamated zinc powder - Google Patents
Method for producing amalgamated zinc powderInfo
- Publication number
- JPS5830922B2 JPS5830922B2 JP54037564A JP3756479A JPS5830922B2 JP S5830922 B2 JPS5830922 B2 JP S5830922B2 JP 54037564 A JP54037564 A JP 54037564A JP 3756479 A JP3756479 A JP 3756479A JP S5830922 B2 JPS5830922 B2 JP S5830922B2
- Authority
- JP
- Japan
- Prior art keywords
- zinc powder
- zinc
- mercury
- powder
- amalgamated
- 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
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims description 66
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 20
- 229910052753 mercury Inorganic materials 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 239000011787 zinc oxide Substances 0.000 claims description 16
- 239000011701 zinc Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- 229910052725 zinc Inorganic materials 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 239000003153 chemical reaction reagent Substances 0.000 claims description 6
- 238000000053 physical method Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 238000005267 amalgamation Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 15
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 229910021511 zinc hydroxide Inorganic materials 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- UGZADUVQMDAIAO-UHFFFAOYSA-L zinc hydroxide Chemical compound [OH-].[OH-].[Zn+2] UGZADUVQMDAIAO-UHFFFAOYSA-L 0.000 description 1
- 229940007718 zinc hydroxide Drugs 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- IPCXNCATNBAPKW-UHFFFAOYSA-N zinc;hydrate Chemical compound O.[Zn] IPCXNCATNBAPKW-UHFFFAOYSA-N 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
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
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
【発明の詳細な説明】
本発明はアルカリマンガン電池、水銀電池、ニッケル亜
鉛電池などのアルカリ電池の両極活物質として用いるア
マルガム化亜鉛粉末の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing amalgamated zinc powder used as a bipolar active material in alkaline batteries such as alkaline manganese batteries, mercury batteries, and nickel-zinc batteries.
亜鉛はかなり活性な金属であり、亜鉛粉末の製造工程中
又はその貯蔵中に空気酸化を受けて亜鉛粉末表面に酸化
亜鉛の被膜を形成する。Zinc is a fairly active metal and undergoes air oxidation during the zinc powder manufacturing process or during its storage to form a coating of zinc oxide on the zinc powder surface.
この被膜は水銀と亜鉛との円滑な反応を妨害するため亜
鉛粉末に水銀を作用させる前に従来は、アルカリ金属水
酸化物水溶液、塩酸、塩化アンモニウムなどの水溶液を
使用して該被膜を化学的方法で除去していた。This coating interferes with the smooth reaction between mercury and zinc, so conventionally, before mercury is applied to zinc powder, the coating is chemically removed using an aqueous solution such as an aqueous alkali metal hydroxide solution, hydrochloric acid, or ammonium chloride. It was removed using a method.
しかし、これらの方法では高価な試薬を多量に使用し、
また従来上として使用してきたアルカリ金属水酸化物水
溶液及び塩酸は劇薬に相当し該試薬の多量の取扱しには
相当な注意を要する他、作業環境上も好１しくなく、し
かも酸化亜鉛の被膜を除去する際に亜鉛自体が溶出して
その損失が多くなり、更にこれが原因となって廃水処理
（中和、硫化物等による処理）の際に水酸化亜鉛及び硫
化亜鉛を主成分とする多量の汚泥が生じ、この処理に経
済的負担がかかるなど、多くの欠点があった。However, these methods use large amounts of expensive reagents and
Furthermore, the alkali metal hydroxide aqueous solution and hydrochloric acid that have been used in the past are equivalent to powerful chemicals, and considerable care is required when handling large amounts of these reagents.They are also unfavorable in terms of the working environment, and are coated with zinc oxide. When removing zinc, the zinc itself is leached out, resulting in a large loss.This also causes large amounts of zinc hydroxide and zinc sulfide to be removed during wastewater treatment (neutralization, treatment with sulfides, etc.). There were many disadvantages, such as the production of sludge, which placed an economic burden on the process.
本発明は従来知られているこのようなアマルガム化亜鉛
粉末の製造方法の欠点を改良する目的でなされたもので
あって、亜鉛粉末を反応釜に投入し、水を入れた後比較
的長時間激しく攪拌すると、反応釜と亜鉛粉末、攪拌羽
根と亜鉛粉末、更に亜鉛粉末相互間の衝突、摩擦、更に
振動等の物理的作用によって、亜鉛粉末表面の酸化亜鉛
の被膜が破壊、除去されしかもこの除去された酸化亜鉛
が水によってかき上げられて水中に分散し、このため金
属亜鉛が露出して亜鉛粉末と反応釜、亜鉛粉末相互間の
摩擦等が更に大となり、この結果亜鉛粉末表面の酸化亜
鉛がほぼ完全に除去され水銀と亜鉛粉末とが効果的に反
応するのを利用するものである。The present invention was made for the purpose of improving the drawbacks of the conventionally known methods for producing amalgamated zinc powder. When vigorously stirred, the zinc oxide film on the surface of the zinc powder is destroyed and removed due to physical effects such as collisions between the reaction pot and the zinc powder, the stirring blade and the zinc powder, and between the zinc powders, friction, and vibration. The removed zinc oxide is stirred up by water and dispersed in the water, which exposes the metal zinc and further increases the friction between the zinc powder, the reaction pot, and the zinc powder, which results in oxidation of the surface of the zinc powder. This method takes advantage of the fact that zinc is almost completely removed and mercury and zinc powder react effectively.
即ち、任意の温度の水に亜鉛粉末を投入して比較的長時
間激しく攪拌し、亜鉛粉末表面上の酸化亜鉛を物理的に
除去した後、反応温度を５０〜１１５℃に維持し攪拌を
継続しつつ水銀を徐々に添加し、亜鉛と水銀とを反応さ
せてアマルガム化亜鉛粉末を製造するものである。That is, zinc powder is added to water at an arbitrary temperature and stirred vigorously for a relatively long period of time to physically remove zinc oxide on the surface of the zinc powder, and then the reaction temperature is maintained at 50 to 115°C and stirring is continued. While adding mercury gradually, zinc and mercury are reacted to produce amalgamated zinc powder.
この目的は任意の温度の水に亜鉛粉末を投入し。For this purpose, add zinc powder to water at any temperature.
攪拌と洗浄とを少なくとも１回繰り返して亜鉛粉末表面
の酸化亜鉛をあらかじめ除去した後反応温度を５０〜１
１５℃に維持し水銀を投入することによっても達成しう
る。After stirring and washing were repeated at least once to remove zinc oxide on the surface of the zinc powder, the reaction temperature was increased to 50 to 100 ml.
This can also be achieved by maintaining the temperature at 15°C and adding mercury.
この場合洗浄効率がよくなり一層好ましい方法といえる
。In this case, the cleaning efficiency is improved and it can be said to be a more preferable method.
反応温度が５０℃より低いと水銀添加の際に直径０．５
〜２．５Ｃｒｎの塊りができ均一なアマルガム化亜鉛粉
末ができず、一方１１５℃以上の温度では亜鉛粉末と水
とが
ｚｎ＋２Ｈ２０＋０２→Ｚｎ（ＯＨ）２＋Ｈ２Ｏ２２Ｈ
Ｏ→２Ｈ２０＋０２
２
のように反応する他物−なアマルガム化亜鉛粉末が得ら
れないため好寸しくない。If the reaction temperature is lower than 50℃, the diameter of 0.5
~2.5Crn lumps are formed and uniform amalgamated zinc powder cannot be obtained. On the other hand, at temperatures above 115°C, zinc powder and water become Zn+2H20+02→Zn(OH)2+H2O22H.
This method is not suitable because it is not possible to obtain amalgamated zinc powder that reacts like O→2H20+02 2 .
尚本発明ｒ／７ｃ訃いて水とは、純粋物たる水の他、界
面活性剤等の洗浄剤を含むものもいい、また加熱した際
に亜鉛と作用せず、また悪臭、刺激臭等により作業環境
が汚染されることがない程度の５重量係未満の酸化亜鉛
溶解性の試薬の添加を何ら妨げるものではなく、本発明
者の研究結果によると、この範囲は蟻酸、酢酸等の有機
酸、アルカリ金属水酸化物及び塩化アンモニウムの夫々
の水溶液では５重量係未満、アンモニア水の場合は１重
量係以下、鉱酸の場合で０．５重量係以下であり、この
濃度にかいては該試薬の効果としては主として亜鉛粉末
表面の酸化亜鉛をほぐしてその除去を促進することが認
められた。In the present invention, R/7C water is not only pure water, but also includes water that contains detergents such as surfactants, does not interact with zinc when heated, and does not have a bad or irritating odor. This does not in any way prevent the addition of zinc oxide soluble reagents with a concentration of less than 5% by weight without contaminating the working environment, and according to the research results of the present inventors, this range is limited to organic acids such as formic acid and acetic acid. In the case of aqueous solutions of alkali metal hydroxide and ammonium chloride, it is less than 5 parts by weight, in the case of aqueous ammonia it is less than 1 part by weight, and in the case of mineral acids it is less than 0.5 parts by weight. The effect of the reagent was mainly to loosen the zinc oxide on the surface of the zinc powder and promote its removal.
勿論、本発明の目的を逸脱しない範囲でこれらの試薬を
適当に混合して使用することも可能である。Of course, it is also possible to use a suitable mixture of these reagents without departing from the purpose of the present invention.
次に本発明の実施例を示す。Next, examples of the present invention will be shown.
実施例 １
反応釜に水４０ｋｑと４８〜１５０メツシユの亜鉛粉末
２５ｋｇを投入し、２５分間激しく攪拌した約５０℃１
で昇温し２に９の水銀を徐々に適下し、更に２５分間攪
拌する。Example 1 40 kq of water and 25 kg of zinc powder of 48 to 150 mesh were put into a reaction vessel and stirred vigorously for 25 minutes at about 50°C1.
The temperature was raised at 200° C., and the mercury in Steps 2 and 9 was gradually added, and the mixture was further stirred for 25 minutes.
亜鉛粉末中に水銀が偏在するのを防止するため細穴から
水銀を適下する。In order to prevent mercury from being unevenly distributed in the zinc powder, mercury is applied through a small hole.
アマルガム化後４回水洗し脱水した後真空乾燥を行いア
マルガム化亜鉛粉末２６．４６に９を得た。After amalgamation, the product was washed with water four times, dehydrated, and then vacuum dried to obtain an amalgamated zinc powder of 26.46 to 9.
実施例 ２
耐圧性の反応釜に水４０＠と４８〜１５０メツシユの亜
鉛粉末２５ｋｑを投入し、２５分間攪拌した後１１５℃
寸で昇温し水銀２に９を高圧チッ素ガスを用いて噴霧状
態で投入する。Example 2 40 @ of water and 25 kq of zinc powder of 48 to 150 mesh were put into a pressure-resistant reaction vessel, stirred for 25 minutes, and then heated to 115°C.
The temperature was raised to about 100 ml, and 2 to 9 parts of mercury were added in a spray state using high-pressure nitrogen gas.
水洗、乾燥は実施例１と同様の方法で行いアマルガム化
亜鉛粉末２６．５３ｋｑを得た。Washing with water and drying were performed in the same manner as in Example 1 to obtain 26.53 kq of amalgamated zinc powder.
実施例 ３
反応釜に水４０ｋｑと４８〜１５０メツシユの亜鉛粉末
２５ｋｑを投入し５分間攪拌しこの水を放流する。Example 3 40 kq of water and 25 kq of 48-150 mesh zinc powder were put into a reaction vessel, stirred for 5 minutes, and the water was discharged.
次に新鮮な水４０に９を投入して５分間攪拌し放流した
後更に新鮮な水を加え約ｓｏ’ｃｔで昇温し実施例１と
同様の方法で水銀を投入して反応させた後、水洗、脱水
乾燥を行いアマルガム化亜鉛粉末２６．３９にりを得た
。Next, 9 was added to fresh water 40, stirred for 5 minutes, and then discharged. Then, fresh water was added, the temperature was raised to about so'ct, and mercury was added in the same manner as in Example 1 to cause a reaction. , washing with water, dehydration and drying to obtain amalgamated zinc powder of 26.39 g.
水銀投入前に２回洗浄を繰り返すのは亜鉛粉末表面の酸
化亜鉛をあらかじめ除去するためであり、２回以上洗浄
を繰り返しても何ら問題はない。The reason for repeating the cleaning twice before adding mercury is to remove zinc oxide on the surface of the zinc powder in advance, and there is no problem even if the cleaning is repeated two or more times.
実施例 ４
４重量係の水酸化カリウム水溶液４０ｋｑを７５’Ｃ［
昇温した後亜鉛粉末２５ｈを投入し１５分間攪拌した後
攪拌を継続しつつ水銀２ｈを細穴から徐々に滴下し、更
に２５分間攪拌する。Example 4 40 kq of potassium hydroxide aqueous solution by weight was heated to 75'C [
After raising the temperature, 25 h of zinc powder was added and stirred for 15 minutes, and then 2 h of mercury was gradually dropped through the small holes while stirring was continued, and the mixture was further stirred for 25 minutes.
その後１０回水洗した後脱水し真空乾燥をしてアマルガ
ム化亜鉛粉末２６．４８に９を得た。Thereafter, it was washed with water 10 times, dehydrated, and dried in vacuum to obtain an amalgamated zinc powder of 26.48 to 9.
本実施例には記載しなかったが亜鉛粉末を投入した反応
釜に任意の温度に加熱した水を投入して攪拌し該亜鉛粉
末表面の酸化亜鉛を物理的方法により除去した後反応温
度を５０〜１１５℃に維持して水銀を除々に投入して反
応させても良好な結果が得られた。Although not described in this example, water heated to an arbitrary temperature was added to the reaction pot containing the zinc powder, stirred, and the zinc oxide on the surface of the zinc powder was removed by a physical method. Good results were obtained even when the temperature was maintained at ~115°C and mercury was gradually added to the reaction mixture.
又、水にドデシルベンゼンスルホン酸ソーダなどの界面
活性剤などを少量加えることにより酸化亜鉛を除去する
ための時間を短縮することができた。Furthermore, by adding a small amount of a surfactant such as sodium dodecylbenzenesulfonate to water, the time required to remove zinc oxide could be shortened.
一方、反応温度を４５℃で行ったところ直径０．５〜２
．５ Ｃｒｎ程度の塊りができ均一なアマルガム化亜鉛
粉末が得られなかった。On the other hand, when the reaction temperature was 45℃, the diameter was 0.5~2.
．． Agglomerates of about 5 Crn were formed and uniform amalgamated zinc powder could not be obtained.
本発明で得られたアマルガム化亜鉛粉末と現行品とを比
較するため１０重重量の水酸化カリウム水溶液４０ｋｑ
を７５℃に昇温した後亜鉛粉末２５に７を投入し５分間
攪拌した後攪拌を継続しつつ水銀２ｈを細穴から除々に
適下し、更［２５分間攪拌する。In order to compare the amalgamated zinc powder obtained in the present invention with the current product, 40 kq of a 10 weight potassium hydroxide aqueous solution was prepared.
After raising the temperature to 75° C., 7 was added to the zinc powder 25 and stirred for 5 minutes. While stirring was continued, 2 h of mercury was gradually dropped through the small hole, and the mixture was further stirred for 25 minutes.
その後水酸化カリウムを完全に除去するために１８回水
洗した後脱水し真空乾燥をしてアマルガム化亜鉛粉末２
５．９７ｋｑを得た。After that, in order to completely remove potassium hydroxide, it was washed with water 18 times, dehydrated, and vacuum dried to form amalgamated zinc powder 2.
5.97 kq was obtained.
本発明で得たアマルガム化亜鉛粉末と現行品（水酸化カ
リウム使用）との収率及び３５係の水酸化カリウム水溶
液中に４５℃で３力月浸漬した場合のガス発生量の結果
を下表に示す。The table below shows the yield of the amalgamated zinc powder obtained according to the present invention and the current product (using potassium hydroxide), and the results of gas generation when immersed in a 35% potassium hydroxide aqueous solution at 45°C for 3 months. Shown below.
本発明によるとアマルガム化亜鉛粉末の製造コストが下
がり、アマルガム化亜鉛粉末の収率、作業性及び作業環
境が夫々向上した他、水の使用量が激減し、更に廃水処
理の際に生ずる汚泥の量が１／３〜１／６に減少した。According to the present invention, the production cost of amalgamated zinc powder has been reduced, the yield of amalgamated zinc powder, workability, and working environment have been improved, and the amount of water used has been drastically reduced, and the sludge generated during wastewater treatment has been reduced. The amount decreased by 1/3 to 1/6.
Claims (1)
回攪拌と洗浄とを繰り返して亜鉛粉末表面に形成された
酸化亜鉛の被膜を物理的方法により除去した後、反応温
度を５０−１１５℃に維持し攪拌を継続しつつ水銀を徐
々に添加して亜鉛粉末と水銀とを反応させることを特徴
とするアマルガム化亜鉛粉末の製造方法。 ２ 酸化亜鉛を除去するための物理的方法が、反応釜と
亜鉛粉末、攪拌羽根と亜鉛粉末、及び亜鉛粉末相互間の
衝突、摩擦、振動等である特許請求の範囲第１項記載の
アマルガム化亜鉛粉末の製造方法。 ３５重量係未満の酸化亜鉛溶解性の試薬を含む水溶液に
亜鉛粉末を投入して攪拌し、亜鉛粉末表面に形成された
酸化亜鉛を物理的方法により除去した後、反応温度を５
０〜１１５℃に維持し攪拌を継続しつつ水銀を徐々に添
加して亜鉛粉末と水銀とを反応させることを特徴とする
アマルガム化亜鉛粉末の製造方法。 ４ 酸化亜鉛を除去するための物理的方法が、反応釜と
亜鉛粉末、攪拌羽根と亜鉛粉末、及び亜鉛粉末相互間の
衝突、摩擦、振動等である特許請求の範囲第３項記載の
アマルガム化亜鉛粉末の製造方法。[Claims] 1. Adding zinc powder to water and stirring, or at least 1.
After repeating stirring and washing to physically remove the zinc oxide film formed on the surface of the zinc powder, mercury was gradually added while maintaining the reaction temperature at 50-115°C and continuing stirring. A method for producing amalgamated zinc powder, which comprises reacting zinc powder and mercury. 2. Amalgamation according to claim 1, wherein the physical method for removing zinc oxide is collision, friction, vibration, etc. between a reaction pot and zinc powder, a stirring blade and zinc powder, and between zinc powders. Method for manufacturing zinc powder. Zinc powder was added to an aqueous solution containing a zinc oxide soluble reagent of less than 35% by weight, stirred, and the zinc oxide formed on the surface of the zinc powder was removed by a physical method, and the reaction temperature was increased to 5% by weight.
A method for producing amalgamated zinc powder, which comprises gradually adding mercury while maintaining the temperature at 0 to 115°C and continuing stirring to cause the zinc powder and mercury to react. 4. Amalgamation according to claim 3, wherein the physical method for removing zinc oxide is collision, friction, vibration, etc. between a reaction pot and zinc powder, a stirring blade and zinc powder, and between zinc powders. Method for manufacturing zinc powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54037564A JPS5830922B2 (en) | 1979-03-28 | 1979-03-28 | Method for producing amalgamated zinc powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54037564A JPS5830922B2 (en) | 1979-03-28 | 1979-03-28 | Method for producing amalgamated zinc powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55128553A JPS55128553A (en) | 1980-10-04 |
| JPS5830922B2 true JPS5830922B2 (en) | 1983-07-02 |
Family
ID=12501012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54037564A Expired JPS5830922B2 (en) | 1979-03-28 | 1979-03-28 | Method for producing amalgamated zinc powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5830922B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5925168A (en) * | 1982-08-04 | 1984-02-09 | Fuji Elelctrochem Co Ltd | Enclosed alkaline battery |
| JPS60100368A (en) * | 1983-11-02 | 1985-06-04 | Toshiba Battery Co Ltd | Production method of zinc amalgam powder for alkaline cell |
| CN1069247C (en) * | 1992-05-07 | 2001-08-08 | 郭春兰 | Amalgamation for prodn. of zinc amalgam powder |
-
1979
- 1979-03-28 JP JP54037564A patent/JPS5830922B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55128553A (en) | 1980-10-04 |
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