JPS6334228B2 - - Google Patents
Info
- Publication number
- JPS6334228B2 JPS6334228B2 JP3698785A JP3698785A JPS6334228B2 JP S6334228 B2 JPS6334228 B2 JP S6334228B2 JP 3698785 A JP3698785 A JP 3698785A JP 3698785 A JP3698785 A JP 3698785A JP S6334228 B2 JPS6334228 B2 JP S6334228B2
- Authority
- JP
- Japan
- Prior art keywords
- silver
- coral sand
- hydrogen peroxide
- carbonate
- purifying agent
- 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
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 21
- ZXSQEZNORDWBGZ-UHFFFAOYSA-N 1,3-dihydropyrrolo[2,3-b]pyridin-2-one Chemical compound C1=CN=C2NC(=O)CC2=C1 ZXSQEZNORDWBGZ-UHFFFAOYSA-N 0.000 claims description 20
- 235000014653 Carica parviflora Nutrition 0.000 claims description 20
- 241000243321 Cnidaria Species 0.000 claims description 20
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 20
- 239000004576 sand Substances 0.000 claims description 20
- 229910052709 silver Inorganic materials 0.000 claims description 20
- 239000004332 silver Substances 0.000 claims description 20
- LKZMBDSASOBTPN-UHFFFAOYSA-L silver carbonate Substances [Ag].[O-]C([O-])=O LKZMBDSASOBTPN-UHFFFAOYSA-L 0.000 claims description 20
- 229910001958 silver carbonate Inorganic materials 0.000 claims description 20
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 20
- 230000001954 sterilising effect Effects 0.000 claims description 13
- 239000012629 purifying agent Substances 0.000 claims description 12
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 101710134784 Agnoprotein Proteins 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- PLKATZNSTYDYJW-UHFFFAOYSA-N azane silver Chemical compound N.[Ag] PLKATZNSTYDYJW-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007867 post-reaction treatment Methods 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Filtering Materials (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Chemically Coating (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は滅菌用浄化剤の製造方法、特にはサン
ゴ砂表面に銀を被覆することによつて飲料水用
材として有用とされる滅菌用浄化剤の製造方法に
関するものである。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a method for producing a sterilizing purifying agent, and in particular a sterilizing purifying agent which is useful as a material for drinking water by coating the surface of coral sand with silver. The present invention relates to a method for producing the agent.
（従来の技術）
活性炭、軽石、サンゴ砂などのような基材の表
面に銀を付着させたものが水処理用殺菌剤とされ
ることはすでによく知られているところである。(Prior Art) It is already well known that silver adhered to the surface of a base material such as activated carbon, pumice, coral sand, etc. can be used as a disinfectant for water treatment.
しかし、この製造方法については硝酸銀をアン
モニア水に溶解して銀アンモニア錯塩を作り、こ
れに基体を浸漬してからこの液にホルマリン、グ
ルコースなどの還元液を添加し、この反応によつ
て銀を基体上に析出させる、いわゆる銀鏡反応法
によつて作ることが汎用されているために、これ
には操作が複雑で各種の試薬が必要とされるほ
か、この場合には有機排水の処理も考慮すること
が必要とされるという不利がある。 However, this manufacturing method involves dissolving silver nitrate in aqueous ammonia to create a silver ammonia complex salt, immersing the substrate in this, adding a reducing solution such as formalin or glucose to this solution, and converting silver through this reaction. Since it is commonly produced by the so-called silver mirror reaction method, in which it is deposited on a substrate, this method is complicated and requires various reagents, and in this case, treatment of organic wastewater must also be considered. It has the disadvantage of being required to do so.
（発明の構成）
本発明はこのような不利を解決した滅菌用浄化
剤の製造方法に関するものであり、これはサンゴ
砂に硝酸銀溶液を添加してこれを表面が炭酸銀で
覆われたものとしたのち、これに過酸化水素水を
注加して炭酸銀を銀に還元し、表面に銀を付着さ
せたサンゴ砂を得ることを特徴とするものであ
る。(Structure of the Invention) The present invention relates to a method for producing a sterilizing purifying agent that solves the above-mentioned disadvantages, and this involves adding a silver nitrate solution to coral sand so that the surface is coated with silver carbonate. After that, hydrogen peroxide solution is added to this to reduce the silver carbonate to silver, thereby obtaining coral sand with silver attached to the surface.
すなわち、本発明者は基材として天然に産出す
るサンゴ砂を使用して安価に滅菌用浄化剤を製造
する方法について種々検討した結果、このサンゴ
砂が炭酸カルシウムを主材とするものであること
からこれに硝酸銀を作用させればその表面が炭酸
銀で被覆されたものになること、この炭酸銀を銀
に還元させるためにはこれに過酸化水素を添加す
れば炭酸銀が容易に還元されて銀が析出されるの
で、これによれば極めて容易に目的とする滅菌用
浄化剤を得ることができることを見出すと共に、
この場合には反応残渣もないという工業的な有利
性が与えられることを確認して本発明を完成させ
た。 That is, as a result of various studies on the method of manufacturing a sterilizing purifying agent at low cost using naturally occurring coral sand as a base material, the present inventor found that this coral sand is mainly composed of calcium carbonate. Therefore, if silver nitrate is applied to this, the surface will be coated with silver carbonate, and in order to reduce this silver carbonate to silver, hydrogen peroxide can be added to it, and the silver carbonate will be easily reduced. They discovered that since silver is precipitated using this method, it is possible to obtain the desired sterilizing purifying agent very easily.
The present invention was completed after confirming that this case provides an industrial advantage in that there is no reaction residue.
以下に本発明を工程順に詳述する。 The present invention will be explained in detail below in order of steps.
本発明の方法はまずサンゴ石を硝酸銀と反応さ
せるのであるが、これはサンゴ砂を容器中に採取
したのちこれに硝酸銀溶液をサンゴ砂の表面が覆
われるように注加すればよい。この反応はサンゴ
砂が炭酸カルシウムを主剤とするものであること
から常温で容易に進行して硝酸銀は炭酸銀となつ
てサンゴ砂の表面を被覆するようになるが、反応
を促進させるためには時々撹拌することがよい。
なお、こゝに添加される硝酸銀は２〜15％の溶液
とすればよいが、この添加量は滅菌用浄化剤とし
てのサンゴ砂に銀を被覆したものの銀の最適量が
サンゴ砂に対して0.15〜１％とされることから、
この銀量に対応する炭酸銀を析出する量とすれば
よく、したがつてこれはサンゴ砂100重量部に対
し、15％溶液として60〜70mlの範囲とすればよ
い。 In the method of the present invention, corallite is first reacted with silver nitrate, and this can be done by collecting coral sand in a container and then pouring a silver nitrate solution into it so that the surface of the coral sand is covered. This reaction progresses easily at room temperature because coral sand is mainly composed of calcium carbonate, and the silver nitrate turns into silver carbonate and coats the surface of the coral sand. However, in order to accelerate the reaction, It is best to stir occasionally.
The silver nitrate added here may be a 2 to 15% solution, but this amount is determined based on the optimal amount of silver for coral sand coated with silver as a sterilization purifying agent. Since it is said to be 0.15 to 1%,
The amount of silver carbonate that corresponds to this amount of silver may be precipitated, and therefore, this amount may be in the range of 60 to 70 ml as a 15% solution per 100 parts by weight of coral sand.
このようにして得られた炭酸銀で被覆されたサ
ンゴ砂はついで過酸化水素による還元でこの炭酸
銀を銀とするのであるが、これは固体状の炭酸銀
粒子に過酸化水素水を注加すればよい。しかし、
この炭酸銀に過酸化水素水を急激に注加すると過
酸化水素の分解ガスによつて発泡が生じて反応液
が飛散するし、この反応が発熱反応であることか
ら過酸化水素水は徐々に少量宛添加して温度も40
℃以下に保つようにすることがよい。なお、過酸
化水素の添加量はそれが少量にすぎると銀の回収
率が低下するので、これは炭酸銀１ｇに対し10％
過酸化水素水として100ml以上好ましくは180ml以
上とすることがよく、これによれば銀を90％以上
の回収率で得ることができるという有利性が与え
られる。 The coral sand coated with silver carbonate obtained in this way is then reduced with hydrogen peroxide to convert the silver carbonate into silver, which is done by pouring hydrogen peroxide solution onto solid silver carbonate particles. do it. but,
When hydrogen peroxide is rapidly added to this silver carbonate, the decomposed gas of hydrogen peroxide causes foaming and the reaction liquid is scattered.Since this reaction is an exothermic reaction, the hydrogen peroxide is gradually added to the silver carbonate. Add a small amount and set the temperature to 40
It is best to keep it below ℃. Note that if the amount of hydrogen peroxide added is too small, the recovery rate of silver will decrease, so this should be 10% per gram of silver carbonate.
The amount of hydrogen peroxide solution is preferably 100 ml or more, preferably 180 ml or more, and this gives the advantage that silver can be obtained with a recovery rate of 90% or more.
この反応によつて炭酸銀が還元されて銀で被覆
したサンゴ砂が得られるが、このものは過酸化水
素水の分解による発泡が終わつた時点で過し、
水洗してから200〜300℃で１〜２時間乾燥すれば
目的とする滅菌用浄化剤として取得される。 Through this reaction, silver carbonate is reduced and coral sand coated with silver is obtained, but this is filtered once the foaming due to the decomposition of the hydrogen peroxide solution has finished.
After washing with water and drying at 200 to 300°C for 1 to 2 hours, the desired sterilizing purifying agent can be obtained.
これを要するに、本発明の方法は炭酸カルシウ
ムを主材とするサンゴ砂に硝酸銀溶液を注加して
その表面を炭酸銀で被覆したものとしたのち、こ
れに過酸化水素水を注加して炭酸銀を銀に還元さ
せて銀を被覆したサンゴ砂を滅菌用浄化剤として
取得するものであるが、これによればこの反応が
CaCo3＋AgNO3→（Ag）2CO3＋Ca（NO3）2、
（Ag）2CO3＋H2O2→Ag＋H2O＋O2↑＋CO2↑と
いうクリーンな反応で進行して反応残渣が発生せ
ず、したがつて反応後の処理も全く不要であるこ
とから、工業的に極めて容易に安全に、かつ安価
に目的とする滅菌用浄化剤を得ることができると
いう有利性が与えられる。 In short, the method of the present invention involves pouring a silver nitrate solution into coral sand mainly composed of calcium carbonate to coat the surface with silver carbonate, and then adding hydrogen peroxide solution to this. Silver carbonate is reduced to silver to obtain silver-coated coral sand as a sterilizing purifying agent, but this reaction
CaCo 3 +AgNO 3 →(Ag) 2 CO 3 +Ca(NO 3 ) 2 ,
(Ag) 2 CO 3 ＋H 2 O 2 →Ag＋H 2 O＋O 2 ↑＋CO 2 ↑ The reaction proceeds in a clean manner, and no reaction residue is generated.Therefore, there is no need for post-reaction treatment, making it an industrial choice. The advantage is that the desired sterilizing purifying agent can be obtained extremely easily, safely, and at low cost.
つぎに本発明方法の実施例をあげる。 Next, examples of the method of the present invention will be given.
実施例
コーラルサンド（サンゴ砂）50ｇをビーカーに
装入し、これに15％の硝酸銀溶液30mlを試料の表
面が覆われるまで加えて24時間放置し、この間２
回の撹拌を行ない、ついでこれをブフナーロート
で吸引過して水分を除去し分析したところ、こ
れは約１ｇの炭酸銀で被覆されていた。Example: 50g of coral sand was placed in a beaker, 30ml of 15% silver nitrate solution was added until the surface of the sample was covered, and the mixture was left for 24 hours.
The mixture was stirred several times and then filtered through a Buchner funnel to remove moisture, and analyzed. It was found to be coated with about 1 g of silver carbonate.
つぎにこの炭酸銀で被覆されたコーラルサンド
に10％濃度の過酸化水素水を240ml徐々に注加し、
発泡の止まつたところで過し、500mlの水で水
洗してから200℃で１時間乾燥させて水の滅菌用
浄化剤を作つた。 Next, 240ml of 10% hydrogen peroxide solution was gradually poured into the coral sand coated with silver carbonate.
After the foaming stopped, it was washed with 500 ml of water and dried at 200°C for 1 hour to prepare a water sterilization purifier.
つぎにこのものをビーカーに取り、水を加えて
撹拌したが水は透明で銀の剥離はなく、この50ｇ
を１の水に24時間浸漬したものはAg+濃度が
100ppb前後で、一般細菌の滅菌作用の最適の数
値を示した。なお、これは飲料水用材としたと
ころ、この浄化剤を通過した水のNO2 -＋NO3 -
の含有値は水質基準の10ppmの1/10の1ppmであ
つた。 Next, I put this in a beaker, added water and stirred it, but the water was clear and there was no peeling of silver.
1. Soaked in water for 24 hours, the Ag + concentration is
Around 100 ppb showed the optimum value for sterilizing effect on general bacteria. In addition, when this was used as a material for drinking water, NO 2 - + NO 3 - of the water that passed through this purifying agent
The content value was 1 ppm, which is 1/10 of the water quality standard of 10 ppm.
Claims (1)
面が炭酸銀で覆われたものとしたのち、これに過
酸化水素水を注加して炭酸銀を銀に還元し、表面
に銀を付着させたサンゴ砂を得ることを特徴とす
る滅菌用浄化剤の製造方法。 ２ 過酸化水素水が35％濃度の過酸化水素水を水
で３倍に希釈したものである特許請求の範囲第１
項記載の滅菌用浄化剤の製造方法。[Claims] 1. Adding a silver nitrate solution to coral sand so that the surface is covered with silver carbonate, and then adding hydrogen peroxide solution to reduce the silver carbonate to silver. A method for producing a sterilizing purifying agent, which comprises obtaining coral sand with silver attached to its surface. 2. Claim 1, in which the hydrogen peroxide solution is a 35% hydrogen peroxide solution diluted three times with water.
A method for producing a sterilizing purifying agent as described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60036987A JPS61195935A (en) | 1985-02-26 | 1985-02-26 | Manufacture of reduced silver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60036987A JPS61195935A (en) | 1985-02-26 | 1985-02-26 | Manufacture of reduced silver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61195935A JPS61195935A (en) | 1986-08-30 |
| JPS6334228B2 true JPS6334228B2 (en) | 1988-07-08 |
Family
ID=12485097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60036987A Granted JPS61195935A (en) | 1985-02-26 | 1985-02-26 | Manufacture of reduced silver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61195935A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0268948U (en) * | 1988-11-15 | 1990-05-24 | ||
| JPH0268949U (en) * | 1988-11-15 | 1990-05-24 | ||
| JPH0516338Y2 (en) * | 1989-03-28 | 1993-04-28 | ||
| WO2004040035A1 (en) * | 2002-11-01 | 2004-05-13 | Advance Company, Ltd. | Method for forming thin silver mirror film, and method for forming coating film comprising thin silver mirror film |
| EP1735123A2 (en) * | 2004-04-01 | 2006-12-27 | Tokusen U.S.A., Inc. | Synthesis of nanosized metal particles |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4649666B2 (en) * | 2006-07-11 | 2011-03-16 | 独立行政法人産業技術総合研究所 | Electroless gold plating solution |
| CN105396547B (en) * | 2015-12-16 | 2018-01-30 | 哈尔滨工业大学 | A kind of preparation method of flower-shaped silver carbonate microballoon |
| JP7240020B1 (en) * | 2021-10-14 | 2023-03-15 | 有限会社ニシノテクノス | Method for producing silver-impregnated calcium carbonate-containing particles |
-
1985
- 1985-02-26 JP JP60036987A patent/JPS61195935A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0268948U (en) * | 1988-11-15 | 1990-05-24 | ||
| JPH0268949U (en) * | 1988-11-15 | 1990-05-24 | ||
| JPH0516338Y2 (en) * | 1989-03-28 | 1993-04-28 | ||
| WO2004040035A1 (en) * | 2002-11-01 | 2004-05-13 | Advance Company, Ltd. | Method for forming thin silver mirror film, and method for forming coating film comprising thin silver mirror film |
| EP1735123A2 (en) * | 2004-04-01 | 2006-12-27 | Tokusen U.S.A., Inc. | Synthesis of nanosized metal particles |
| EP1735123A4 (en) * | 2004-04-01 | 2009-07-01 | Tokusen U S A Inc | Synthesis of nanosized metal particles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61195935A (en) | 1986-08-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |