JPH0274518A - Cyanoaurate bulk substance - Google Patents
Cyanoaurate bulk substanceInfo
- Publication number
- JPH0274518A JPH0274518A JP1917588A JP1917588A JPH0274518A JP H0274518 A JPH0274518 A JP H0274518A JP 1917588 A JP1917588 A JP 1917588A JP 1917588 A JP1917588 A JP 1917588A JP H0274518 A JPH0274518 A JP H0274518A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- cyanide
- gold
- cyanoaurate
- granular
- 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
- 239000000126 substance Substances 0.000 title abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 59
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 11
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 7
- MXZVHYUSLJAVOE-UHFFFAOYSA-N gold(3+);tricyanide Chemical compound [Au+3].N#[C-].N#[C-].N#[C-] MXZVHYUSLJAVOE-UHFFFAOYSA-N 0.000 claims description 29
- 239000008187 granular material Substances 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 15
- WOFVPNPAVMKHCX-UHFFFAOYSA-N N#C[Au](C#N)C#N Chemical class N#C[Au](C#N)C#N WOFVPNPAVMKHCX-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- -1 alkali metal salts Chemical class 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- XTFKWYDMKGAZKK-UHFFFAOYSA-N potassium;gold(1+);dicyanide Chemical compound [K+].[Au+].N#[C-].N#[C-] XTFKWYDMKGAZKK-UHFFFAOYSA-N 0.000 description 2
- NRTDAKURTMLAFN-UHFFFAOYSA-N potassium;gold(3+);tetracyanide Chemical compound [K+].[Au+3].N#[C-].N#[C-].N#[C-].N#[C-] NRTDAKURTMLAFN-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910001020 Au alloy Inorganic materials 0.000 description 1
- FPTCEDCRWQHZSE-UHFFFAOYSA-N C(#N)[Au](C#N)(C#N)C#N.[K] Chemical compound C(#N)[Au](C#N)(C#N)C#N.[K] FPTCEDCRWQHZSE-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003353 gold alloy Substances 0.000 description 1
- KPQDSKZQRXHKHY-UHFFFAOYSA-N gold potassium Chemical compound [K].[Au] KPQDSKZQRXHKHY-UHFFFAOYSA-N 0.000 description 1
- PANJMBIFGCKWBY-UHFFFAOYSA-N iron tricyanide Chemical compound N#C[Fe](C#N)C#N PANJMBIFGCKWBY-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- SDKPSXWGRWWLKR-UHFFFAOYSA-M sodium;9,10-dioxoanthracene-1-sulfonate Chemical compound [Na+].O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2S(=O)(=O)[O-] SDKPSXWGRWWLKR-UHFFFAOYSA-M 0.000 description 1
- VMDSWYDTKFSTQH-UHFFFAOYSA-N sodium;gold(1+);dicyanide Chemical compound [Na+].[Au+].N#[C-].N#[C-] VMDSWYDTKFSTQH-UHFFFAOYSA-N 0.000 description 1
- 159000000008 strontium salts Chemical class 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はシアン化金塩粉粒体に関するものである。[Detailed description of the invention] (Industrial application field) The present invention relates to cyanide gold salt powder.
（従来の技術とその問題点）
シアン化金塩は、金メツキ液、金合金メツキ液などの全
供給用薬品を主な用途とし、装飾品や耐腐食性材料、電
子および電気業界など広く用いられており、工業的に重
要な薬品である。(Conventional technology and its problems) Gold cyanide salts are mainly used as chemicals for supplying gold plating liquid, gold alloy plating liquid, etc., and are widely used in decorative items, corrosion-resistant materials, and the electronic and electrical industries. It is an industrially important chemical.
金メツキ液に用いられるシアン化金塩は、アルカリ金属
塩がほとんどで、これはアルカリ金属のシアン化金塩と
して、
シアン化第−金ナトリウム ＮａＡｕ （ＣＮ） ｔ
シアン化第二金ナトリウム ＮａＡｕ （ＣＮ）
４シアン化第−金カリウム ＫＡｕ （ＣＮ）
ｚシアン化第二金カリウム ＫＡｕ （ＣＮ）
４が一般的であるが、この他にもアンモニウム塩、リチ
ウム塩、ストロンチウム塩などがある。またカルシウム
塩、マグネシウム塩などのアルカリ土類金属を用いるこ
ともある。Most of the cyanide gold salts used in gold plating solutions are alkali metal salts, and these are sodium gold cyanide (NaAu (CN) t).
Sodium ferric cyanide NaAu (CN)
Potassium gold tetracyanide KAu (CN)
z Potassium gold cyanide KAu (CN)
4 is common, but there are other salts such as ammonium salts, lithium salts, and strontium salts. Also, alkaline earth metals such as calcium salts and magnesium salts may be used.
これらシアン化金塩粉末を得る方法としては、シアン化
金塩を含む溶液から結晶化させたのち固液分離や乾燥の
工程を経て得る方法が一般的である。しかしシアン化金
塩粉末を、シアン化金塩を含む溶液から結晶化させて得
ると、シアン化金塩粉末が針状になり、得られたシアン
化金塩粉末がその後の固液分離や乾燥などの操作で砕け
てさらに微細な針状の粉末となる。A common method for obtaining these cyanide gold salt powders is to crystallize from a solution containing cyanide gold salts and then undergo solid-liquid separation and drying steps. However, when cyanide gold salt powder is obtained by crystallizing it from a solution containing cyanide gold salt, the cyanide gold salt powder becomes acicular, and the obtained cyanide gold salt powder cannot be used for subsequent solid-liquid separation or drying. It is broken down into finer needle-like powder.
こうして得られた第２図ａに示す如くシアン化金塩の微
細な針状粉末は、メツキ液などに溶は易い反面、使用時
に飛び散りやすく、シアン化金塩が毒物であることなど
から、取り扱いや安全の上で問題がある。また表面積が
大きく吸湿し易く、固まり易いといった保存の上での問
題点がある。The fine acicular powder of cyanide gold salt obtained in this way, as shown in Figure 2a, is easily dissolved in plating liquid etc., but on the other hand, it easily scatters during use, and since gold cyanide salt is a poisonous substance, it must be handled carefully. There are safety issues. In addition, it has problems in storage, such as its large surface area, which makes it easy to absorb moisture and harden easily.
さらに粉末が針状であると粒子の縦方向に対する回転の
自由度が小さくなり、また第２図すに示す如く針状粉末
同士が絡み合うので粉末としての流動性に影響を及ぼし
、シアン化金塩を自動的に充填する装置においては、ホ
ッパ内で詰まったり、充填量を微調整するパーツフィー
ダーにうまくかからなかったりする製造したシアン化金
塩粉末を充填する際の問題点がある。Furthermore, if the powder is acicular, the degree of freedom of rotation of the particle in the vertical direction will be reduced, and as shown in Figure 2, the acicular powder will become entangled with each other, which will affect the fluidity of the powder. In devices that automatically fill powder, there are problems when filling the manufactured gold salt cyanide powder, such as clogging in the hopper or difficulty in feeding the parts feeder that finely adjusts the filling amount.
（発明の目的）
本発明はこのような問題点に鑑みなされたもので、シア
ン化金塩が飛び散りにくく安全に取り扱うことができ、
保存においても吸湿しにくく、かつ流動性においての問
題をも解決するシアン化金塩粉粒体を提供せんとするも
のである。(Purpose of the Invention) The present invention was made in view of the above problems, and it is possible to handle the cyanide gold salt safely without scattering.
It is an object of the present invention to provide a cyanide gold salt powder that is resistant to moisture absorption during storage and also solves the problem of fluidity.
（問題点を解決するための手段）
本発明のシアン化金塩粉粒体は、アルカリ金属のシアン
化金塩粉粒体の少なくとも一部が顆粒状であることを特
徴とするものである。(Means for Solving the Problems) The cyanide gold salt powder of the present invention is characterized in that at least a portion of the alkali metal cyanide gold salt powder is in the form of granules.
（作用）
以下本発明の作用についてのべる。第２図ａ、ｂは、針
状粉末同志が集まった形状を模式的に表したものである
。第１図ａ、ｂは顆粒状粉末同志が集まった状態を模式
的に表したものである。(Function) The function of the present invention will be described below. Figures 2a and 2b schematically represent the shape of needle-like powders gathered together. Figures 1a and 1b schematically represent a state in which granular powders are gathered together.
針状粉末とは、シアン化金塩を結晶化させる際に縦方向
に結晶が成長したものを指し、シアン化金塩を結晶化さ
せ針状粉末となったものおよび、得られたシアン化金塩
粉末がその後の固液分離や乾燥などの操作で砕けてさら
に微細な粉末となったものをいう。Acicular powder refers to crystals grown in the vertical direction when gold cyanide salt is crystallized. Salt powder is broken down into finer powder by subsequent operations such as solid-liquid separation and drying.
また本発明でいう顆粒状粉粒体とは、シアン化金塩の粉
末を凝集や成形などにより顆粒状の粉末又は粒体に加工
したものをさす。Furthermore, the term "granular powder" as used in the present invention refers to a product obtained by processing cyanide gold salt powder into granular powder or granules by agglomeration, molding, or the like.
針状結晶粉末は第２図ａに示す形状をしており、横方向
（図示：イの方向）への自由度は大きいが、縦方向（図
示８口の方向）への自由度は極めて小さく、転がりが悪
い。また第２図すに示すように、集まった状態では、粉
末同志がからみあうので粉末としての流動性が悪い。The acicular crystal powder has the shape shown in Figure 2 a, and has a large degree of freedom in the horizontal direction (direction A shown in the figure), but a very small degree of freedom in the vertical direction (direction 8 shown in the figure). , poor rolling. Moreover, as shown in FIG. 2, when the powders are gathered together, they become entangled with each other, so the fluidity of the powders is poor.
本発明によるアルカリ金属のシアン化金塩粉末は、第１
図ａに示すように顆粒状粉末であるので、横方向（図示
：イの方向）、縦方向（図示８口の方向）への自由度が
大きく、転がりが良い。また第１図すに示すように、集
まった状態では、粉末同志がからみあうことが少ないの
で粉末としての流動性も針状粉末に比べて非常に良くな
る。The alkali metal cyanide gold salt powder according to the present invention is
As shown in Figure a, since it is a granular powder, it has a large degree of freedom in the lateral direction (in the direction of A in the figure) and in the vertical direction (in the direction of the 8 openings in the figure), and rolls well. Furthermore, as shown in FIG. 1, in the aggregated state, the powders are less likely to become entangled with each other, so the fluidity of the powder is much better than that of acicular powder.
またシアン化金塩粉末の表面積が大きいと容器からシア
ン化金塩粉末を空ける場合に、空ける場所の空気の流れ
の影響などを受けやすく、シアン化金塩粉末が飛び散り
易い。本発明による顆粒状粉粒体は、アルカリ金属のシ
アン化金塩粒子を凝集や成形などにより加工したもので
あるので、粒径も大きくこうした影響を受けることがで
ない。Furthermore, if the surface area of the cyanide gold salt powder is large, when the cyanide gold salt powder is emptied from the container, it is easily affected by the air flow in the area where it is emptied, and the cyanide gold salt powder is likely to scatter. Since the granular powder according to the present invention is obtained by processing alkali metal cyanide gold salt particles by agglomeration, molding, etc., the particle size is large and it is not affected by such effects.
アルカリ金属のシアン化金塩の粉末又は粉粒体中に含ま
れる顆粒状の粉末又は粉粒体の割合が、重量に対し３０
％を超えると流動性が向上する。従ってアルカリ金属の
シアン化金塩の粉末又は粉粒体中に含まれる顆粒状の粉
末又は粉粒体の割合は、重量に対し３０％以上あること
が望ましく、さらに望ましくは５０％以上である。これ
は、顆粒状の粉末又は粒体の割合が高くなれば高くなる
ほど流動性がよくなることと飛散の程度が低減するから
で、アルカリ金属のシアン化金塩の粉末又は粒体中の全
粉末又は粉粒体を顆粒状とすると非常によい。The ratio of the granular powder or granular material contained in the powder or granular material of alkali metal gold cyanide salt to the weight is 30
%, the fluidity improves. Therefore, the proportion of granular powder or granular material contained in the powder or granular material of alkali metal gold cyanide salt is desirably 30% or more, and more preferably 50% or more based on the weight. This is because the higher the proportion of granular powder or granules, the better the fluidity and the lower the degree of scattering. It is very good to make the powder into granules.
また顆粒状粉粒体の粒径は、１００μｍ以上あることが
望ましく、これは１００μｍ以下であるとシアン化金塩
粉粒体を容器から空ける際に飛散がおこりやすいという
理由による。逆に粒径が大きくなると使用の際に溶けが
悪くなることあるが、シアン化金塩は水に対する溶解度
が高く、また粉粒体を顆粒状に加工しであるので数閣の
粒径になっても水によく溶けるので、本発明品を大粒径
とするのに支障はない。Further, it is desirable that the particle size of the granular powder is 100 μm or more, because if it is less than 100 μm, the cyanide gold salt powder tends to scatter when it is emptied from the container. On the other hand, if the particle size becomes large, it may become difficult to dissolve during use, but cyanide gold salt has a high solubility in water, and since the powder is processed into granules, the particle size is only a few degrees. Since it is well soluble in water, there is no problem in making the product of the present invention large in particle size.
シアン化金塩の粉粒体は、アルカリ金属のシアン化金塩
を含む溶液からアルカリ金属のシアン化金塩を結晶化さ
せることにより得ることができるが、温度勾配や濃度勾
配の方向に結晶成長し、シアン化金塩粉粒体が針状にな
りやすく、また結晶を成長させる条件次第ではブロック
状の不規則な顆粒状粉粒体となることもある。Powdered gold cyanide salt can be obtained by crystallizing an alkali metal gold cyanide salt from a solution containing the alkali metal cyanide gold salt, but the crystals grow in the direction of the temperature gradient or concentration gradient. However, cyanide gold salt powder particles tend to become needle-like, and depending on the conditions for growing crystals, they may become block-shaped irregular granule-like powder particles.
（実施例１）
含水したシアン化金カリウムの針状粉末（１０〜７５μ
ｍ）２０００ｇをマルメライザーにて加工したのち、乾
燥して粒径０．５〜１ ｕｓの顆粒状粉末１６２５ｇを
得た。得られた粉末は非常に流動性がよく、１００μｍ
以下の小粒径のものがないので、飛び敗ることがなく取
り扱いに優れたものであった。(Example 1) Water-containing gold potassium cyanide acicular powder (10-75μ
m) 2000 g was processed in a marmerizer and then dried to obtain 1625 g of granular powder with a particle size of 0.5 to 1 us. The obtained powder has very good fluidity and has a diameter of 100 μm.
Since there were no particles with a smaller particle size, they did not fly apart and were easy to handle.
（従来例１）
シアン化金カリウムの針状粉末は重量比で７４μｍ以下
： １３．８％、７５〜１４９μｍ ： ３５．４％、
１５０〜２１０μｍ ： ３３．３％、２１１〜５９０
μｍ ： １７．４％、５９０μｍ以上：０．１％含ま
れており、８６．２％が７５μｍ以上の粉末であったが
流動性が悪＜、７４μｍ以下の小粒径のものが１３．８
％含まれていたので、飛び散るなど、取り扱いが悪かっ
た。(Conventional Example 1) Acicular powder of potassium gold cyanide has a weight ratio of 74 μm or less: 13.8%, 75 to 149 μm: 35.4%,
150-210 μm: 33.3%, 211-590
μm: 17.4%, 590 μm or more: 0.1%, 86.2% was powder with a diameter of 75 μm or more, but the fluidity was poor, 13.8% with a small particle size of 74 μm or less
%, so it was handled poorly, causing it to splatter.
（実施例２）
スラリー状にしたシアン化金カリウム粉末を押しだし機
で直径１＋＋ｕ＋＋の柱状に加工し、これを乾燥器に入
れ乾燥した後１〜３ ｍｍの長さに折り、顆粒状のシア
ン化金カリウム粒体を得た。得られた顆粒体は非常に流
動性がよく、１００μｍ以下の小粒径のものがないので
、飛び散ることがなく取り扱いに優れたものであった。(Example 2) A slurry of gold-potassium cyanide powder was processed into a columnar shape with a diameter of 1++u++ using an extruder, and after drying it in a dryer, it was folded into a length of 1 to 3 mm to produce granular cyanide. Gold potassium granules were obtained. The obtained granules had very good fluidity and did not have small particle diameters of 100 μm or less, so they did not scatter and were easy to handle.
（発明の効果）
本発明によるシアン化金塩粉粒体は、従来のものに比べ
て極めて流動性が良いという特徴をそなえており、毒物
としてのシアン化金塩の取り扱いや、使いやすさ、さら
にはシアン化金塩を製造するうえでの効果大なるものと
いえる。(Effects of the Invention) The cyanide gold salt powder according to the present invention has extremely good fluidity compared to conventional ones, and it is easy to handle gold cyanide salt as a poison, ease of use, Furthermore, it can be said that it is highly effective in producing cyanide gold salt.
またシアン化金塩の粉粒体が大粒径であるにもかかわら
ず、顆粒状であるため従来のものと同様に水によく溶け
るとともに、吸湿しても固まりにくいといった別の効果
もあり、産業への貢献大なるものである。In addition, despite the large particle size of cyanide gold salt powder, it is granular, so it dissolves well in water like conventional products, and it also has other effects such as not clumping even when it absorbs moisture. This is a great contribution to industry.
第１図ａは本発明の顆粒状のシアン化金塩粉末を示す模
式図、第１図すは同ａ図の集まった状態を示す模式図、
第２図ａは従来の針状のシアン化金塩粉末を示す模式図
、第２図すは同ａ図の集まった状態を示す模式図である
。
第７図（ｂ）
第 ２図（ｂ）FIG. 1a is a schematic diagram showing the granular cyanide gold salt powder of the present invention, FIG. 1A is a schematic diagram showing the assembled state of FIG.
FIG. 2A is a schematic diagram showing a conventional acicular gold cyanide salt powder, and FIG. 2A is a schematic diagram showing the assembled state of FIG. 2A. Figure 7 (b) Figure 2 (b)
Claims (1)
顆粒状であることを特徴とするシアン化金塩粉粒体。1. A cyanide gold salt powder, wherein at least a portion of the alkali metal cyanide gold salt powder is in the form of granules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1917588A JPH0274518A (en) | 1988-01-29 | 1988-01-29 | Cyanoaurate bulk substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1917588A JPH0274518A (en) | 1988-01-29 | 1988-01-29 | Cyanoaurate bulk substance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0274518A true JPH0274518A (en) | 1990-03-14 |
Family
ID=11992012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1917588A Pending JPH0274518A (en) | 1988-01-29 | 1988-01-29 | Cyanoaurate bulk substance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0274518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003522712A (en) * | 2000-02-16 | 2003-07-29 | デグサ アクチエンゲゼルシャフト | Method for producing molded body of inorganic cyanide and product obtained by the method |
-
1988
- 1988-01-29 JP JP1917588A patent/JPH0274518A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003522712A (en) * | 2000-02-16 | 2003-07-29 | デグサ アクチエンゲゼルシャフト | Method for producing molded body of inorganic cyanide and product obtained by the method |
| JP4843174B2 (en) * | 2000-02-16 | 2011-12-21 | エボニック デグサ ゲーエムベーハー | Method for producing molded body of inorganic cyanide and product obtained by the method |
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