JPH046229A - Method for dissolving metal - Google Patents
Method for dissolving metalInfo
- Publication number
- JPH046229A JPH046229A JP2108225A JP10822590A JPH046229A JP H046229 A JPH046229 A JP H046229A JP 2108225 A JP2108225 A JP 2108225A JP 10822590 A JP10822590 A JP 10822590A JP H046229 A JPH046229 A JP H046229A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- cationic surfactant
- solvent
- org
- mentioned
- 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.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 44
- 239000002184 metal Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims description 17
- 239000003093 cationic surfactant Substances 0.000 claims abstract description 17
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 14
- 150000002367 halogens Chemical class 0.000 claims abstract description 11
- 150000001450 anions Chemical class 0.000 claims abstract description 4
- -1 halogen ion Chemical class 0.000 claims abstract 3
- 150000002739 metals Chemical class 0.000 claims description 15
- 239000003960 organic solvent Substances 0.000 claims description 14
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 9
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 abstract description 6
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052794 bromium Inorganic materials 0.000 abstract description 6
- 239000002904 solvent Substances 0.000 abstract description 5
- QARVLSVVCXYDNA-UHFFFAOYSA-N bromobenzene Chemical compound BrC1=CC=CC=C1 QARVLSVVCXYDNA-UHFFFAOYSA-N 0.000 abstract description 4
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 abstract description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052801 chlorine Inorganic materials 0.000 abstract description 3
- 239000000460 chlorine Substances 0.000 abstract description 3
- 229910052740 iodine Inorganic materials 0.000 abstract description 3
- 239000011630 iodine Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract 3
- 125000001453 quaternary ammonium group Chemical group 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 9
- 229910052737 gold Inorganic materials 0.000 description 9
- 239000010931 gold Substances 0.000 description 9
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 150000008282 halocarbons Chemical class 0.000 description 5
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- QAQSNXHKHKONNS-UHFFFAOYSA-N 1-ethyl-2-hydroxy-4-methyl-6-oxopyridine-3-carboxamide Chemical compound CCN1C(O)=C(C(N)=O)C(C)=CC1=O QAQSNXHKHKONNS-UHFFFAOYSA-N 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 150000002430 hydrocarbons Chemical group 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 150000007522 mineralic acids Chemical class 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- IAQQDIGGISSSQO-UHFFFAOYSA-N 2-(4-fluorophenyl)piperidine Chemical compound C1=CC(F)=CC=C1C1NCCCC1 IAQQDIGGISSSQO-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- XKBGEWXEAPTVCK-UHFFFAOYSA-M methyltrioctylammonium chloride Chemical compound [Cl-].CCCCCCCC[N+](C)(CCCCCCCC)CCCCCCCC XKBGEWXEAPTVCK-UHFFFAOYSA-M 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- KQVYBYSUVFRMGE-UHFFFAOYSA-M 1-hexadecylpyridin-1-ium;iodide Chemical compound [I-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 KQVYBYSUVFRMGE-UHFFFAOYSA-M 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000005210 alkyl ammonium group Chemical group 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229940027983 antiseptic and disinfectant quaternary ammonium compound Drugs 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229940006460 bromide ion Drugs 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229960001927 cetylpyridinium chloride Drugs 0.000 description 1
- YMKDRGPMQRFJGP-UHFFFAOYSA-M cetylpyridinium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 YMKDRGPMQRFJGP-UHFFFAOYSA-M 0.000 description 1
- 229940060038 chlorine Drugs 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- VICYBMUVWHJEFT-UHFFFAOYSA-N dodecyltrimethylammonium ion Chemical compound CCCCCCCCCCCC[N+](C)(C)C VICYBMUVWHJEFT-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-M iodide Chemical compound [I-] XMBWDFGMSWQBCA-UHFFFAOYSA-M 0.000 description 1
- 229940006461 iodide ion Drugs 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 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
- 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、金属の溶解方法に間するものであり、詳しく
は、陽イオン性界面活性剤、ハロゲン単体及び有機溶媒
に接触させることを特徴とする金属の溶解方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for dissolving metals, specifically, the method is characterized by contacting a metal with a cationic surfactant, an elemental halogen, and an organic solvent. It relates to a method of melting metals.
従来の技術
金属を液体中に溶解することは、金属を含有する混合物
から金属を抽出、回収するために不可欠の工程であり、
産業上極めて重要である。この目的のため、従来は、金
属を塩酸などの無機酸の水溶液に溶解する方法がとられ
ていた。Conventional Technology Dissolving metals in liquids is an essential process for extracting and recovering metals from metal-containing mixtures.
It is of great industrial importance. For this purpose, a conventional method has been to dissolve the metal in an aqueous solution of an inorganic acid such as hydrochloric acid.
また最近、陽イオン性界面活性剤の存在下に、ハロゲン
化炭化水素に接触させることにより、金属を溶解させる
方法が見出されている（特開平１２９４８３０号公報）
。Recently, a method has been discovered for dissolving metals by bringing them into contact with halogenated hydrocarbons in the presence of a cationic surfactant (Japanese Unexamined Patent Publication No. 1294830).
.
発明が解決しようとする課題
従来の無機酸を用いる金属の溶解方法では、強酸性の水
溶液を扱うため、作業が危険となるうえ、多量の排水が
生じ、この排水の処理に多大の経費がかかる６ また、
陽イオン性界面活性剤の存在下にハロゲン化炭化水素に
接触させる方法は、溶媒がハロゲン化炭化水素に限られ
る上、その臭気や毒性が強いため作業に困難を伴うなど
の問題点があった。Problems to be Solved by the Invention Conventional methods for dissolving metals using inorganic acids involve working with strongly acidic aqueous solutions, which makes the work dangerous and generates a large amount of wastewater, which requires a great deal of expense to dispose of. 6 Also,
The method of contacting halogenated hydrocarbons in the presence of a cationic surfactant has problems, such as the solvent being limited to halogenated hydrocarbons and its odor and strong toxicity making it difficult to work. .
課題を解決するための手段
本発明者は、こうした従来の方法の課題を解決するため
、無機酸を用いず、ハロゲン化炭化水素以外の有機溶媒
も用い得る金属の溶解方法を求めて種々検討した結果、
多くの金属が、陽イオン性界面活性剤の存在下に、ハロ
ゲン単体及び有機溶媒に接触させることにより溶解する
現象を見いだし、本発明に到達した。Means for Solving the Problems In order to solve the problems of the conventional methods, the present inventor conducted various studies in search of a method for dissolving metals that does not use inorganic acids and can also use organic solvents other than halogenated hydrocarbons. result,
The present invention was achieved by discovering a phenomenon in which many metals dissolve when brought into contact with a simple halogen and an organic solvent in the presence of a cationic surfactant.
すなわち、本発明は、陽イオン性界面活性剤、ハロゲン
単体及び有機溶媒に接触させることを特徴とする金属の
溶解方法を提供するものである。That is, the present invention provides a method for dissolving a metal, which is characterized by bringing the metal into contact with a cationic surfactant, an elemental halogen, and an organic solvent.
本発明方法においては、陽イオン性界面活性剤、ハロゲ
ン単体及び有機溶媒に金属を接触させることにより金属
を溶解しやすい化合物に変換する。In the method of the present invention, metals are brought into contact with a cationic surfactant, a simple halogen, and an organic solvent to convert the metals into easily soluble compounds.
すなわち、目的の金属に対し、ハロゲン単体からハロゲ
ン原子が与えら・れることによって金属ハロゲン化物が
生成し、これが陽イオン性界面活性剤の働きでポリへロ
ゲノ金属陰イオン鉗体と長鎖アルキルアンモニウム陽イ
オンとのイオン対に変換されることにより有機溶媒に溶
解するわけである。In other words, a metal halide is generated by adding a halogen atom from a single halogen to the target metal, and this is combined with a polyherogenometallic anion forceps and a long-chain alkyl ammonium by the action of a cationic surfactant. It dissolves in organic solvents by being converted into ion pairs with cations.
金属の溶解に要する時間は、目的とする金属、用いる陽
イオン性界面活性剤、ハロゲンの種類及び濃度、有機溶
媒の種類などにより異る。また、処理温度は有機溶媒の
沸点以下の範囲で選ばれるが、処理温度が高いほど金属
の溶解が促進される。The time required to dissolve the metal varies depending on the target metal, the cationic surfactant used, the type and concentration of halogen, the type of organic solvent, etc. Further, the treatment temperature is selected within a range below the boiling point of the organic solvent, and the higher the treatment temperature, the more the dissolution of the metal is promoted.
金属の溶解の終点は、仕込んだ金属が見えなくなること
でＮ認できる。The end point of metal melting can be recognized by the fact that the charged metal is no longer visible.
本発明方法において用いられる陽イオン性界面活性剤と
しては、一般式が、
［Ｒ，Ｎ” Ｒ３］ ・χ−
Ｒ。The cationic surfactant used in the method of the present invention has the general formula: [R,N''R3] .chi.-R.
（式中、Ｒ２、Ｒ２、Ｒ３及びＲ４の少なくとも一つは
炭素数８〜１８の炭化水素基であって、残りはメチル基
またはエチル基であり、かつ、その中の複数個が互いに
結合して環を形成していてもよい。(In the formula, at least one of R2, R2, R3 and R4 is a hydrocarbon group having 8 to 18 carbon atoms, and the rest are methyl groups or ethyl groups, and a plurality of them are bonded to each other. may form a ring.
Ｘ−は塩素イオン、臭素イオンまたはヨウ素イオン）で
表わされる第四級アンモニウム化合物が適し、たとえば
、臭化ｎ−オクチルトリメチルアンモニウム、臭化ｎ−
ドデシルトリメチルアンモニウム、塩化ｎ−ステアリル
トリメチルアンモニウム、臭化セチルピリジニウム、塩
化トリオクチルメチルアンモニウムなどが用いられる。Suitable are quaternary ammonium compounds represented by X- (chlorine, bromide or iodide ion), such as n-octyltrimethylammonium bromide, n-bromide
Dodecyltrimethylammonium, n-stearyltrimethylammonium chloride, cetylpyridinium bromide, trioctylmethylammonium chloride, etc. are used.
陽イオン性界面活性剤は、溶解すべき金属に対して等モ
ル以上、ハロゲン単体は、溶解すべき金属に対して ０
．５倍モル量以上使用しなければならない、陽イオン性
界面活性剤は、全てが有機溶媒に溶解している必要はな
く、一部は懸濁状態で存在していてもよく、この場合は
、金属が溶解するに従って、陽イオン性界面活性剤も徐
々に溶解する。The cationic surfactant should be used in an amount equal to or more than the mole of the metal to be dissolved, and the halogen should be in an amount of 0 or more relative to the metal to be dissolved.
．． The cationic surfactant, which must be used in an amount of 5 times the molar amount or more, does not need to be completely dissolved in the organic solvent, and some of it may be present in a suspended state; in this case, As the metal dissolves, the cationic surfactant also gradually dissolves.
本発明方法で、ハロゲン単体としては、塩素、臭素及び
ヨウ素の単体が用いられる。In the method of the present invention, chlorine, bromine, and iodine are used as the halogens.
本発明方法で用いられる有機溶媒としては、液状の炭化
水素類、アルコール類、エステル類、エーテル類、ニト
リル類、ニトロ化炭化水素類、ハロゲン化炭化水素類が
適し、例えば、ベンゼン、トルエン、メタノール、酢酸
エチル、ジオキサン、アセトニトリル、ニトロベンゼン
、ブロムベンゼンなどが用いられる。Suitable organic solvents used in the method of the present invention include liquid hydrocarbons, alcohols, esters, ethers, nitriles, nitrated hydrocarbons, and halogenated hydrocarbons, such as benzene, toluene, and methanol. , ethyl acetate, dioxane, acetonitrile, nitrobenzene, brombenzene, etc. are used.
本発明方法により溶解される金属は、典型金属及び遷移
金属の両方にわたり、たとえば、バナジウム、クロム、
マンガン、鉄、コバルト、二・メチル、銅、亜鉛、ゲル
マニウム、セレン、ジルコニウム、パラジウム、銀、イ
ンジウム、アンチモン、白金、金、水銀、鉛などである
。The metals melted by the method of the present invention include both typical metals and transition metals, such as vanadium, chromium,
These include manganese, iron, cobalt, dimethyl, copper, zinc, germanium, selenium, zirconium, palladium, silver, indium, antimony, platinum, gold, mercury, and lead.
次に、実施例により、本発明の詳細な説明する。Next, the present invention will be explained in detail with reference to Examples.
実施例１〜１５
ベンゼン１０ｇに、臭化セチルピリジニウム１ｍｍｏ
Ｉ及び臭素Ｑ 、 ５ ｍｍｏＩを加え、さらに表１に
示す金属の粉末Ｑ 、 ２ｇ−ａｔｏｍを加えてかくは
んしながら、液温７９℃で還流加熱した。ここで、金属
の粉末が残存していない場合には溶解率１００％とし、
金属残金がある場合には、この残金を傾しやにより溶液
から分離し、メタノールで洗浄し乾燥した後秤量した。Examples 1 to 15 1 mmo of cetylpyridinium bromide to 10 g of benzene
I and 5 mmol of bromine Q were added thereto, and 2 g-atom of the metal powder Q shown in Table 1 was added, and the mixture was heated under reflux at a liquid temperature of 79° C. while stirring. Here, if no metal powder remains, the dissolution rate is assumed to be 100%,
If there was any metal residue, this residue was separated from the solution using a decant, washed with methanol, dried, and then weighed.
こうして得た金属残金量と仕込量との差から金属の溶解
率を求めた。結果は表１の通りである。The dissolution rate of the metal was determined from the difference between the amount of remaining metal obtained in this manner and the amount charged. The results are shown in Table 1.
表１
実施例
金属
加熱時間仙ｒ）
バナジウム
クロム
マンガン
鉄
コバルト
ニッケル
鋼
亜鉛
ゲルマニウム
セレン
ジルコニウム
パラジウム
銀
インジウム
アンチモン
水銀
鉛
０．５
０．５
０．５
０．２
０．５
０．５
溶解率（％）
実施例１８〜２０
表２に示す有機溶媒Ｌｏｇに、ヨウ化セチルピリジニウ
ム１ｍｍｏｌ及びヨウ素 ０ 、５ ｍａ＋ｏｌを加え
て溶解し、さらに０．２ｍｍφの線状の金０ 、２ ｇ
−ａｔｏｍを加えて還流加熱したところ、いずれの場合
も、線状の金はすべて溶解した。Table 1 Examples of metal heating time Examples 18-20 1 mmol of cetylpyridinium iodide and 0,5 ma+ol of iodine were added and dissolved in the organic solvent Log shown in Table 2, and further 0,2 g of linear gold with a diameter of 0.2 mm was added.
-atom was added and heated under reflux, all the linear gold was dissolved in both cases.
表２
実施例 有機溶媒 温度（”Ｃ） 加熱時間（ｈｒ
）１８ アセトニトリル ８０ ２１９ 酢酸エ
チル ７７０．５
２０ ジオキサン １０１ ０．５実施例２１
ベンゼンＬｏｇに、臭素０ 、５ ｍｍｏｌ及び塩化ト
リオクチルメチルアンモニウムｌ ＠ｍｏｌを加えて溶
解し、さらに白金粉末０ 、２ ｇ−ａｔｏｍを加えて
、７９°Ｃで２４時間還流加熱したところ、白金粉末の
３０％が溶解した。Table 2 Examples Organic solvent Temperature ("C) Heating time (hr
)18 Acetonitrile 80 219 Ethyl acetate 770.5 20 Dioxane 101 0.5 Example 21 0.5 mmol of bromine and 1@mol of trioctylmethylammonium chloride are added and dissolved in benzene Log, and further 0.2 g of platinum powder is added. -atom was added and heated under reflux at 79°C for 24 hours, and 30% of the platinum powder was dissolved.
実施例２２
ニトロベンゼンＬｏｇに、臭素 ０ 、５ ｍｍｏｌ及
び臭化ｎ−オクチルトリメチルアンモニウム１ｍｍｏｌ
を加えて溶解し、さらに０．２ｍｎφの線状の金０ 、
２ ｇ−ａｔｏｍを加えて、１００°Ｃで１時間加熱し
たところ、線状の金はすべて溶解した。Example 22 Nitrobenzene Log contains 0,5 mmol of bromine and 1 mmol of n-octyltrimethylammonium bromide.
Add and dissolve, and further add 0.2 mmφ linear gold 0,
When 2 g-atom was added and heated at 100°C for 1 hour, all the linear gold was dissolved.
実施例２３
ブロムベンゼン１０ｇに、臭素０ 、５ ■ｏｌ及び臭
化セチルピリジニウムｌｔａ＋ｏｌを加えて溶解し、さ
らに０．２ｍｍφの線状の金Ｑ 、 ２ ｇ−ｔｔｏｍ
を加えて、８０℃で１時間加熱したところ、線状の金は
すべて溶解した。Example 23 To 10 g of bromobenzene, 0.5 mol of bromine and lta+ol of cetylpyridinium bromide were added and dissolved, and then a 0.2 mmφ linear gold Q. 2 g-ttom was added.
was added and heated at 80° C. for 1 hour, and all the linear gold was dissolved.
実施例２４
トルエン１０ｇに塩化セチルピリジニウム１ａ＋ａｏｌ
を加えて溶解し、塩素ガス約１００ｍ１の共存下に、さ
らに０．２ｍｍφの線状の金０ 、２ ｇ−ａｔｏｍを
加えて、１００°Ｃで５時間加熱したところ、線状の金
はすべて溶解した。Example 24 Cetylpyridinium chloride 1a + aol in 10g of toluene
0.2 g-atom of linear gold with a diameter of 0.2 mm was added in the coexistence of approximately 100 ml of chlorine gas, and heated at 100°C for 5 hours. All of the linear gold disappeared. Dissolved.
発明の効果
本発明に係る金属の溶解方法は、実施例に示した通り、
操作が簡単であるうえ、数多くの金属に対して適用でき
、使用する陽イオン性界面活性剤、ハロゲン単体及び有
機溶媒はいずれも安価なものである。従って、本方法に
よれば、経済的に金属の溶解ができる。Effects of the Invention The metal melting method according to the present invention is as shown in the examples.
It is easy to operate, can be applied to many metals, and the cationic surfactant, simple halogen, and organic solvent used are all inexpensive. Therefore, according to this method, metals can be melted economically.
Claims (1)
る陽イオン性界面活性剤、（Ｂ）ハロゲン単体及び（Ｃ
）有機溶媒に接触させることを特徴とする金属の溶解方
法。(1) metal, (A) a cationic surfactant whose counter anion is a halogen ion, (B) an elemental halogen, and (C
) A method for dissolving metals characterized by contacting them with an organic solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2108225A JPH0694577B2 (en) | 1990-04-24 | 1990-04-24 | Metal melting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2108225A JPH0694577B2 (en) | 1990-04-24 | 1990-04-24 | Metal melting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH046229A true JPH046229A (en) | 1992-01-10 |
| JPH0694577B2 JPH0694577B2 (en) | 1994-11-24 |
Family
ID=14479225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2108225A Expired - Lifetime JPH0694577B2 (en) | 1990-04-24 | 1990-04-24 | Metal melting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0694577B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994025633A1 (en) * | 1993-04-27 | 1994-11-10 | Japan As Represented By Director General Of Agency Of Industrial Science And Technology | Method of dissolving and recovering metal |
| JPH073351A (en) * | 1993-06-18 | 1995-01-06 | Agency Of Ind Science & Technol | Gold refining method |
| JPH09118654A (en) * | 1995-10-25 | 1997-05-06 | Agency Of Ind Science & Technol | Production of metal complex |
-
1990
- 1990-04-24 JP JP2108225A patent/JPH0694577B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994025633A1 (en) * | 1993-04-27 | 1994-11-10 | Japan As Represented By Director General Of Agency Of Industrial Science And Technology | Method of dissolving and recovering metal |
| JPH073351A (en) * | 1993-06-18 | 1995-01-06 | Agency Of Ind Science & Technol | Gold refining method |
| JPH09118654A (en) * | 1995-10-25 | 1997-05-06 | Agency Of Ind Science & Technol | Production of metal complex |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0694577B2 (en) | 1994-11-24 |
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