JPS6345121A - Precipitation of silver sulfide with sodium hydrosulfide nahs and precipitation of the same with ammonium sulfide (nh4)2s - Google Patents
Precipitation of silver sulfide with sodium hydrosulfide nahs and precipitation of the same with ammonium sulfide (nh4)2sInfo
- Publication number
- JPS6345121A JPS6345121A JP19014386A JP19014386A JPS6345121A JP S6345121 A JPS6345121 A JP S6345121A JP 19014386 A JP19014386 A JP 19014386A JP 19014386 A JP19014386 A JP 19014386A JP S6345121 A JPS6345121 A JP S6345121A
- Authority
- JP
- Japan
- Prior art keywords
- precipitation
- sulfide
- silver
- precipitate
- nahs
- 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
- 229910052946 acanthite Inorganic materials 0.000 title claims abstract description 8
- HYHCSLBZRBJJCH-UHFFFAOYSA-M sodium hydrosulfide Chemical compound [Na+].[SH-] HYHCSLBZRBJJCH-UHFFFAOYSA-M 0.000 title claims abstract 4
- XUARKZBEFFVFRG-UHFFFAOYSA-N silver sulfide Chemical compound [S-2].[Ag+].[Ag+] XUARKZBEFFVFRG-UHFFFAOYSA-N 0.000 title claims description 5
- 229940056910 silver sulfide Drugs 0.000 title claims description 5
- UYJXRRSPUVSSMN-UHFFFAOYSA-P ammonium sulfide Chemical compound [NH4+].[NH4+].[S-2] UYJXRRSPUVSSMN-UHFFFAOYSA-P 0.000 title claims 2
- 238000001556 precipitation Methods 0.000 title description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002244 precipitate Substances 0.000 claims abstract description 16
- 239000000243 solution Substances 0.000 claims abstract description 16
- 229910052709 silver Inorganic materials 0.000 claims abstract description 14
- 239000004332 silver Substances 0.000 claims abstract description 14
- 239000007864 aqueous solution Substances 0.000 claims abstract description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 12
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- FSJWWSXPIWGYKC-UHFFFAOYSA-M silver;silver;sulfanide Chemical compound [SH-].[Ag].[Ag+] FSJWWSXPIWGYKC-UHFFFAOYSA-M 0.000 abstract description 3
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910002699 Ag–S Inorganic materials 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000967 suction filtration Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分だ
銀を含む溶成から銀を硫化銀として回収する分野
（ｏ）従来の技術
銀を含む溶液に硫化水素Ｈ，Ｓ又は硫化ナトリウムＮａ
ｚＳ水溶液を反応させて硫化銀沈殿Ａ ｇ、Ｓとして銀
を回収している。Detailed Description of the Invention (a) Field of recovering silver as silver sulfide from a melting process containing silver for industrial use (o) Conventional technology Hydrogen sulfide H, S or sodium sulfide Na is added to a solution containing silver.
Silver is recovered as silver sulfide precipitate Ag,S by reacting the zS aqueous solution.
（ハ）発明が解決しようとする間運点
従来のＨユＳを用いる方法では悪臭を有する有毒なＨ，
Ｓガスの漏えいと吸入を５止するここは困難であり、し
かもガス発生器の取扱いが頒雑である。(c) The problem to be solved by the invention is that the conventional method using H
It is difficult to stop the leakage and inhalation of S gas, and the handling of the gas generator is complicated.
又、従来のＮ ａｓｓを用いる方法では潮解性の強いＮ
ａ２Ｓ・９ ＨｉＯの取扱いが不便でなお且つ生成した
ＡＸ□Ｓが沈殿するのに長時間を要するうえに沈殿の粗
大化と速やかな沈降を計るために加熱すると突沸を招き
危険である。従来の技術に関する文献として 山本大二
部著 増訂 化学実験事典 第８刷 講談社発行 のＰ
、３１８に記載がある。In addition, in the conventional method using Nass, highly deliquescent N
a2S.9 HiO is inconvenient to handle, it takes a long time for the produced AX□S to precipitate, and heating in order to coarsen the precipitate and speed up the precipitation may lead to bumping, which is dangerous. As a reference on conventional technology, P. of Encyclopedia of Chemical Experiments, 8th edition, published by Kodansha, written by Daiichi Yamamoto.
, 318.
（ニ）問題点を解決するための手段
上記問題を解決するために、銀を含む溶液を酢酸酸性の
状態を保ちながら固形フレーク状のＮａＨ５もしくはＮ
ａＨ５水溶液を加えて反応させるか、又は銀を含む溶液
に（ＮＨ４）、Ｓを加えて反応させて、ＡｇユＳ沈殿を
速かに生成沈降させる。(d) Means for solving the problem In order to solve the above problem, a silver-containing solution was prepared into solid flakes of NaH5 or N while maintaining an acidic state of acetic acid.
An aH5 aqueous solution is added to cause a reaction, or a silver-containing solution (NH4) is reacted by adding S to rapidly form an Ag-S precipitate.
（ホ）作用
銀を含む溶液は酢酸酸性の状嬰でＮａＮ３と反応してＡ
ｇユＳ粗大沈殿を速かに生成し沈降する。酸性の保持は
５Ｎ−ＣＨ，Ｃ０ＯＨの添加によって行う。又、銀を含
む溶液は（Ｎ１４゜）ユＳと反応してＡ ｇ、ｓ ｆｆ
ｌ大沈殿を速か：こ生成し沈降する。(e) A solution containing functional silver reacts with NaN3 in an acidic state of acetic acid.
A coarse precipitate is quickly formed and settled. Acidity is maintained by adding 5N-CH, COOH. Also, a solution containing silver (N14°) reacts with S to form A g, s ff
A large precipitate is formed quickly and settles.
（へ）実施例
銀を含む溶液として写真定着廃液を用いて、これにＮａ
Ｎ３もしくはＮａＨ５２１ｋ′ｆ８液を加えていくと直
にＡ ｇｉＳ黒色沈殿を生成して沈降していく。溶液の
酸性度は次第に低下していくので６８−ＣＨ３ＣＯＯＨ
の添加により酸性度を保持する。又、銀を含む溶液とし
て写真定着廃液を用いて、これに（ｓＨ＋）１５を加え
ていくと直にＡｇユＳ黒色沈殿を生成して沈降していく
。いずれの方法においても上澄み液に試薬を加えてもＡ
ｇユＳ沈殿を新たに生成しなくなるまで続ける。沈殿が
完了したら後は常法通りブフナー漏斗で吸引ろ過・純水
洗浄・乾燥してＡ ｇ２Ｓ沈殿を得る。(f) Example Using photographic fixing waste solution as a solution containing silver, Na
When N3 or NaH521k'f8 solution is added, AgiS black precipitate is immediately formed and sedimented. As the acidity of the solution gradually decreases, 68-CH3COOH
The acidity is maintained by adding . Furthermore, when a photographic fixing waste solution is used as a silver-containing solution and (sH+)15 is added thereto, a AgU-S black precipitate is immediately formed and the solution settles. In either method, even if reagents are added to the supernatant, A
Continue until no new gyuS precipitate is generated. After the precipitation is completed, the A g2S precipitate is obtained by suction filtration using a Buchner funnel, washing with pure water, and drying in the usual manner.
（ト）発明の効果
従来の方法ではＡ ｇ２Ｓ沈殿の沈降に時間を要したが
、本伝ではいずれも速かに粗大沈殿を生成して沈降する
。又、ＮａＮ３はフレーク状の固体で扱い易＜ 、（Ｎ
）！＋）、Ｓは液体なのでこれまた扱い易く操作が簡
単である。(G) Effects of the Invention In the conventional method, it took time for the Ag2S precipitate to settle, but in the present invention, coarse precipitates are quickly formed and settled. In addition, NaN3 is a flake-like solid that is easy to handle < , (N
)! +), S is a liquid, so it is easy to handle and operate.
Claims (1)
ＮａＨＳ又はその水溶液を加えて反応させることにより
硫化銀Ａｇ＿２Ｓ沈殿を生成させる方法。 ２ 銀を含む溶液に硫化アンモニウム（ＮＨ＿４）＿２
Ｓを加えて反応させることにより硫化銀Ａｇ＿２Ｓ沈殿
を生成させる方法。[Scope of Claims] 1. A method of producing silver sulfide Ag_2S precipitate by adding sodium hydrogen sulfide (NaHS) or its aqueous solution to a solution containing silver in an acidic state of acetic acid and causing a reaction. 2 Ammonium sulfide (NH_4)_2 in a solution containing silver
A method of producing silver sulfide Ag_2S precipitate by adding S and causing a reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19014386A JPS6345121A (en) | 1986-08-12 | 1986-08-12 | Precipitation of silver sulfide with sodium hydrosulfide nahs and precipitation of the same with ammonium sulfide (nh4)2s |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19014386A JPS6345121A (en) | 1986-08-12 | 1986-08-12 | Precipitation of silver sulfide with sodium hydrosulfide nahs and precipitation of the same with ammonium sulfide (nh4)2s |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6345121A true JPS6345121A (en) | 1988-02-26 |
Family
ID=16253117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19014386A Pending JPS6345121A (en) | 1986-08-12 | 1986-08-12 | Precipitation of silver sulfide with sodium hydrosulfide nahs and precipitation of the same with ammonium sulfide (nh4)2s |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6345121A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5162106A (en) * | 1989-10-12 | 1992-11-10 | The Governors Of The University Of Alberta | Photographic fixer regeneration |
| CN1036029C (en) * | 1989-10-12 | 1997-10-01 | 艾伯塔大学董事会 | Silver recovery from spent photograghic solution |
| CN102718248A (en) * | 2012-06-13 | 2012-10-10 | 吉林大学 | Method for preparing silver sulfide nanocrystalline with near infrared fluorescence using one-step aqueous phase process |
-
1986
- 1986-08-12 JP JP19014386A patent/JPS6345121A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5162106A (en) * | 1989-10-12 | 1992-11-10 | The Governors Of The University Of Alberta | Photographic fixer regeneration |
| CN1036029C (en) * | 1989-10-12 | 1997-10-01 | 艾伯塔大学董事会 | Silver recovery from spent photograghic solution |
| CN102718248A (en) * | 2012-06-13 | 2012-10-10 | 吉林大学 | Method for preparing silver sulfide nanocrystalline with near infrared fluorescence using one-step aqueous phase process |
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