KR0165583B1 - Apparatus and method for disolving ingot in hydrochloric acid or sulfuric acid solution by electrolysis - Google Patents
Apparatus and method for disolving ingot in hydrochloric acid or sulfuric acid solution by electrolysis Download PDFInfo
- Publication number
- KR0165583B1 KR0165583B1 KR1019950025177A KR19950025177A KR0165583B1 KR 0165583 B1 KR0165583 B1 KR 0165583B1 KR 1019950025177 A KR1019950025177 A KR 1019950025177A KR 19950025177 A KR19950025177 A KR 19950025177A KR 0165583 B1 KR0165583 B1 KR 0165583B1
- Authority
- KR
- South Korea
- Prior art keywords
- ingot
- acid solution
- sulfuric acid
- hydrochloric acid
- electrolysis
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
본 발명은 주괴의 용해방법에 관한 것으로, 18% 염산 용액 또는 25% 황산용액중에서 선택된 전해질용액에 주괴(4)를 담은 애노우드(6)에 전류 또는 전압을 인가하여 상기 주괴(4)로 부터 금속이온을 생성시키고, 생성된 금속이온이 캐쏘드(12)로 이동하는 것을 방지하기 위하여 이온선택성투과막(16)으로 캐쏘드 반응조(14)와 애노우드 반응조(10)를 분리시킴으로써 주괴(4)로 금속이온을 전기분해법을 이용하여 용해하게 된 것이다.The present invention relates to a method for dissolving ingots, from which the current is applied to an anode (6) containing an ingot (4) in an electrolyte solution selected from an 18% hydrochloric acid solution or a 25% sulfuric acid solution. The ingot (4) is separated by separating the cathode reactor 14 and the anode reactor 10 with an ion-selective permeable membrane 16 to generate metal ions and prevent the generated metal ions from moving to the cathode 12. ) To dissolve the metal ions using electrolysis.
Description
제1도는 본 발명에 따른 전기분해법을 이용한 염산 또는 황산 용액중 주괴용해장치의 단면도이다.1 is a cross-sectional view of the ingot dissolving apparatus in hydrochloric or sulfuric acid solution using the electrolysis method according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
2 : 주괴용해장치 4 : 주괴2: ingot melting device 4: ingot
6 : 애노우드 8 : 전해질 용액6: anode wood 8: electrolyte solution
10 : 애노우드 반응조 12 : 캐쏘드10: anode reactor 12: cathode
14 : 캐쏘드 16 : 이온선택성투과막14 cathode 16: ion selective permeable membrane
18 : 교반기18: stirrer
본 발명은 주괴의 용해방법에 관한 것으로, 특히 주괴를 침출하여 금속이온 형태로 염산 또는 황산 용액 중에서 전기분해법으로 주괴를 용해시키는 방법에 관한 것이다.The present invention relates to a method for dissolving ingot, and more particularly, to a method of dissolving ingot and dissolving the ingot by electrolysis in hydrochloric acid or sulfuric acid solution in the form of metal ion.
일반적으로 주괴는 철족 등의 금속덩어리로 주로 합금을 제조하는 데 많이 사용되고 있는 바, 니켈의 경우 도금용액을 제조하기 위한 염화니켈, 황산니켈 등의 니켈염 제조와 촉매제인 니켈분말, 니켈 산화물 제조에 사용되고, 코발트 주괴 역시 염화코발트, 황산코발트, 수산화코발트 등의 코발트염 또는 합금코발트 제조에 사용되고 있다.Ingots are generally used in the manufacture of alloys mainly from metal masses such as iron groups, and in the case of nickel, nickel salts such as nickel chloride and nickel sulfate for preparing plating solutions, nickel powder and nickel oxide as catalysts are prepared. Cobalt ingots are also used for the production of cobalt salts or cobalt alloys such as cobalt chloride, cobalt sulfate, and cobalt hydroxide.
이러한 금속주괴로 부터 상기 여러가지 화합물 또는 분말을 얻기 위하여, 금속주괴에 염산 또는 황산용액을 가하여 이온형태로 용해시키는 방법을 이용하는 데, 니켈 또는 코발트와 같은 금속은 질산에 잘 용해되지만, 염산이난 황산 등에는 주괴상태로는 비표면적이 작아서 잘 용해되지 않거나 또는 용해하는 데 상당한 시간이 소요된다.In order to obtain various compounds or powders from these metal ingots, hydrochloric acid or sulfuric acid solution is added to the metal ingot to dissolve in ionic form.Metals such as nickel or cobalt are well dissolved in nitric acid, The back surface has a small specific surface area in the state of ingot, so it hardly dissolves or takes considerable time to dissolve.
따라서 종래에는 이러한 금속들을 단시간 내에 염산 또는 황산용액에 용해시키기 위하여 1.5 - 2.5기압, 150 - 250℃의 온도 등 가혹조건하의 특수용기인 자동가압장치를 이용하여 용해하였다.Therefore, in order to dissolve these metals in a solution of hydrochloric acid or sulfuric acid in a short time, it was dissolved using an automatic pressure device, which is a special container under severe conditions such as 1.5-2.5 atm, 150-250 ℃.
이에 본 발명은 전기분해방법으로 대기압 상온 조건하에서 비용을 적게 들이면서 용이하게 금속주괴를 염산 또는 황산 용액에 용해시킬 수 있는 방법을 제공하는 데 그 목적이 있다.Accordingly, an object of the present invention is to provide a method for easily dissolving a metal ingot in hydrochloric acid or sulfuric acid solution at low pressure under atmospheric pressure at room temperature.
상기와 같은 목적을 달성하기 위한 본 발명은, 용해하고자 하는 주괴를 담은 애노우드에 정전류 또는 정전압을 인가하여 주괴를 금속이온의 형태로 염산 또는 황산용액에 용해시키되, 상기 금속이온이 캐쏘드로 이동하는 것을 방지하기 위하여 이온선택성 투과막으로 캐쏘드 반응조와 애노우드 반응조를 분리시킴으로써 전기분해에 의한 염산 또는 황산용액 중에 주괴를 용해하기 위한 방법이다. 여기서 주괴는 철족금속인 니켈 또는 코발트 등이고, 전해질 용액인 염산용액이나 황산용액은 그 농도에 크게 상관은 없지만 바람직하기로는 염산용액일 경우 18%정도이고, 황산용액은 25%정도가 적당하다.The present invention for achieving the above object, by applying a constant current or constant voltage to the anode containing the ingot to be dissolved in the ingot in the form of metal ions in hydrochloric acid or sulfuric acid solution, the metal ion is moved to the cathode It is a method for dissolving the ingot in hydrochloric acid or sulfuric acid solution by electrolysis by separating the cathode reaction tank and the anode reaction tank with an ion-selective permeable membrane in order to prevent that. Here, the ingot is nickel or cobalt, which is an iron group metal, and the hydrochloric acid solution or sulfuric acid solution, which is an electrolyte solution, is not significantly related to its concentration. Preferably, the hydrochloric acid solution is about 18%.
일반적으로 전기 분해반응을 발생시키는 방법에는 두 전극에 전류를 흘려주는 방법과 전압을 걸어주는 방법이 있는 데, 본 발명에서는 5.3A정전류방법과, 4V 정전압방법을 두 전극에 인가하면 된다.Generally, a method of generating an electrolysis reaction includes a method of applying a current to two electrodes and a method of applying a voltage. In the present invention, the 5.3A constant current method and the 4V constant voltage method may be applied to the two electrodes.
제1도를 참조하여 본 발명에 사용되는 장치를 상세히 설명하면 다음과 같다.The apparatus used in the present invention will be described in detail with reference to FIG. 1 as follows.
전기분해에 의한 주괴용해장치(2)는 용해하고자 하는 주괴(4)를 담고 있는 애노우드(6)와 염산 또는 황산 용액인 전해질 용액(8)으로 이루어진 애노우드 반응조(10); 캐쏘드(12)와 상기 전해질 용액(8)과 동일한 전해질용액으로 이루어진 캐쏘드 반응조(14); 및 상기 애노우드 반응조(10)와 상기 캐쏘드 반응조(14)를 분리시키는 이온선택성투과막(16)으로 이루어져 있다.The ingot dissolving apparatus 2 by electrolysis comprises: an anode reactor 10 comprising an anode 6 containing an ingot 4 to be dissolved and an electrolyte solution 8 that is a hydrochloric or sulfuric acid solution; A cathode reaction tank (14) consisting of a cathode (12) and the same electrolyte solution as the electrolyte solution (8); And an ion selective permeation membrane 16 separating the anode reactor 10 and the cathode reactor 14.
상기 주괴용해장치(2)는 각 반응조의 반응을 촉진시키기 위한 목적으로 교반기(18)를 추가로 포함할 수도 있다.The ingot dissolving apparatus 2 may further include a stirrer 18 for the purpose of promoting the reaction of each reactor.
상기 반응조의 전극은 전해질 용액에 불활성이어야 하고 또한 전기분해시에도 불활성이어야 한다. 산화반응이 일어나는 애노우드(6)의 재료로는 흑연, 백금, 티타늄(Ti)합금 등이 가능한 데 그 중에서도 표면적이 큰 흑연이 바람직하고, 캐쏘드(12)의 재료로는 백금전극이 바람직하며, 또한 백금전극의 형태는 금속주괴를 담을 수 있는 망형태가 적합하다.The electrode of the reactor should be inert to the electrolyte solution and also inactive during electrolysis. Graphite, platinum, titanium (Ti) alloy, etc. may be used as the material of the anode 6 in which the oxidation reaction occurs. Among them, graphite having a large surface area is preferable, and a platinum electrode is preferable as the material of the cathode 12. In addition, the form of the platinum electrode is preferably a network form that can contain a metal ingot.
상기 이온선택성투과막(16)은 니켈이온 또는 코발트이온이 투과시키지 못하고 그 외 염소이온 또는 황산이온과 수소이온은 투과가능한 선택성 막이다. 만약 니켈이온 또는 코발트이온이 이 막을 투과한다면, 이들 온도는 캐쏘드(12)에서 환원되어 다시 금속으로 석출되기 때문에 본 발명의 목적을 달성할 수 없게 된다.The ion selective permeable membrane 16 is a selective membrane that is not permeable to nickel ions or cobalt ions, and other chlorine ions, sulfate ions, and hydrogen ions are permeable. If nickel ions or cobalt ions penetrate this membrane, these temperatures are reduced in the cathode 12 and precipitated back into the metal, making it impossible to achieve the object of the present invention.
이상에서 설명한 바와 같이 장치로 대기압 상온조건하에서 전기분해방법으로 염산 또는 황산용액에 금속주괴를 용해시킬 수 있게 된다.As described above, it is possible to dissolve the metal ingot in hydrochloric acid or sulfuric acid solution by electrolysis method under atmospheric pressure at room temperature.
이하, 본 발명에 따른 전기분해에 의한 주괴용해 방법을 하기 실시예로 상세히 설명한다.Hereinafter, the ingot dissolution method by electrolysis according to the present invention will be described in detail by the following examples.
[실시예]EXAMPLE
캐쏘드 반응조(14)와 애노우드 반응조(10) 사이에 이온선택성투과막(16)이 설치되어 있는 아크릴 또는 폴리에틸렌 용기(300 X 150 X 210㎣)에 전해질용액(8)으로 18% 염산용액 또는 25%황산용액 395㎖를 붓고 흑연판(110 X 70 X 5 ㎣)으로 된 캐쏘드(12)와 표면적이 42.5㎠인 백금망 형태의 애노우드(6)를 설치하였다. 이때, 용액의 온도는 23℃로 측정되었다.18% hydrochloric acid solution as an electrolyte solution (8) in an acrylic or polyethylene container (300 X 150 X 210㎣) having an ion-selective permeable membrane (16) between the cathode reactor (14) and the anode reactor (10). 395 ml of 25% sulfuric acid solution was poured and a cathode 12 of a graphite plate (110 × 70 × 5 mm 3) and a platinum network type anode 6 having a surface area of 42.5 cm 2 were installed. At this time, the temperature of the solution was measured at 23 ℃.
상기 백금망 애노우드(6)에 코발트 주괴(4) 59g을 담아 애노우드 반응조(10)에 넣고 두 전극에 정전압 4V를 걸어 전기분해반응을 개시하고, 교반기(18)로 캐쏘드 반응조(14)의 전해질 용액(8) 또는 두 반응조의 전해질 용액(8)을 60RPM의 속도로 회전시켰다.59 g of cobalt ingot (4) is contained in the platinum network anode (6), placed in an anode reactor (10), and electrostatic reaction is initiated by applying a constant voltage of 4 V to both electrodes, and the cathode reactor (14) is used with an agitator (18). The electrolyte solution 8 or the two electrolyte bath solutions 8 were rotated at a speed of 60 RPM.
반응시작후 1시간 경과후 전원을 끊고 주괴(4)를 담고 있던 애노우드(6)를 애노우드 반응조(10) 밖으로 꺼내어 무게감소량을 측정하고, 다시 애노우드 반응조(10)에 놓고 정전압을 걸어 계소게 전기분해시켰다. 매 1시간간격으로 반응을 정지시키고 주괴의 감소량을 기록하였다.After 1 hour after the start of the reaction, the power was turned off and the anode (6) containing the ingot (4) was taken out of the anode wood reactor (10) to measure the weight loss. So electrolysis. The reaction was stopped every 1 hour and the decrease in ingot was recorded.
비교예는 실시예와 동일한 조건으로 산 용액 395㎖를 60℃로 가열유지된 용기(300 X 150 X 210㎣)에 넣고, 실시예과 유사한 형상의 코발트 주괴 59g을 백금망에 담아 용액에 넣고 실시예와 같이 60RPM 속도로 교반시키면서 용해시켰다. 매 1시간 간격으로 용기 밖으로 꺼내어 주괴의 감소량을 기록한 결과를 표1에 나타내었다.In Comparative Example, 395 ml of an acid solution was placed in a vessel (300 × 150 × 210㎣) heated at 60 ° C. under the same conditions as in Example, and 59g of cobalt ingot having a shape similar to that of Example was placed in a platinum network and put in a solution. It was dissolved while stirring at a rate of 60 RPM. Table 1 shows the result of recording the reduction amount of the ingot taken out of the container every 1 hour.
하기 표1에는 시간이 경과함에 따른 실시예와 비교예의 주괴무게감소량이 나타나 있는 데, 하기 표1에서와 같이 반응시간이 길어질수록 실시예와 비교예의 주괴무게감소량의 차이가 많아짐을 알 수 있다.Table 1 below shows the reduced weight of the ingots of the Examples and Comparative Examples as time passes, and as the reaction time increases as shown in Table 1, it can be seen that the difference between the reduced weights of the Examples and Comparative Examples increases.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950025177A KR0165583B1 (en) | 1995-08-16 | 1995-08-16 | Apparatus and method for disolving ingot in hydrochloric acid or sulfuric acid solution by electrolysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950025177A KR0165583B1 (en) | 1995-08-16 | 1995-08-16 | Apparatus and method for disolving ingot in hydrochloric acid or sulfuric acid solution by electrolysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970011022A KR970011022A (en) | 1997-03-27 |
| KR0165583B1 true KR0165583B1 (en) | 1999-01-15 |
Family
ID=19423581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950025177A KR0165583B1 (en) | 1995-08-16 | 1995-08-16 | Apparatus and method for disolving ingot in hydrochloric acid or sulfuric acid solution by electrolysis |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR0165583B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101300328B1 (en) * | 2011-11-14 | 2013-08-28 | 울산대학교 산학협력단 | Grenade for fire fighting |
-
1995
- 1995-08-16 KR KR1019950025177A patent/KR0165583B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR970011022A (en) | 1997-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Burke et al. | The oxygen electrode. Part 8.—Oxygen evolution at ruthenium dioxide anodes | |
| JPH01237497A (en) | Refining of used nuclear fuel containing uranium and plutonium | |
| US3236756A (en) | Electrolysis with precious metalcoated titanium anode | |
| US5785833A (en) | Process for removing iron from tin-plating electrolytes | |
| RU2153538C2 (en) | Method of preparing metal hydroxides or hydroxooxides by diaphragm analysis | |
| WO2005045101A2 (en) | Process for electrolytic production of aluminum | |
| US4312721A (en) | Electrolytic oxidation process | |
| Gillesberg et al. | Niobium plating processes in alkali chloride melts | |
| US3573100A (en) | Reconstitution of electrodes | |
| KR0165583B1 (en) | Apparatus and method for disolving ingot in hydrochloric acid or sulfuric acid solution by electrolysis | |
| US3400056A (en) | Electrolytic process for preparing electrochemically active cadmium | |
| RU2423557C2 (en) | Procedure for production of high and nano dispersed powder of metals or alloys | |
| JP2003515752A (en) | Actinide manufacturing | |
| JPH0579737B2 (en) | ||
| CN107587169A (en) | Ti in one kind regulation fused electrolyte2+And Ti3+The method of ratio | |
| Kisza et al. | Kinetics and Mechanism of the Magnesium Electrode Reaction in Molten MgCl2‐NaCl Binary Mixtures | |
| US6569311B2 (en) | Continuous electrochemical process for preparation of zinc powder | |
| US6569310B2 (en) | Electrochemical process for preparation of zinc powder | |
| Hurlen et al. | Kinetics of the Fe (Hg)/Fe (II) electrode in aqueous acetate solution | |
| CN114016083B (en) | Method for regenerating alkali metal reducing agent in process of preparing metal by alkali metal thermal reduction of metal oxide | |
| RU2000105358A (en) | METHOD FOR GOLD EXTRACTION FROM GOLD-CONTAINING POLYMETALLIC MATERIALS | |
| JPS6296634A (en) | Surface activated amorphous alloy for electrode for solution electrolysis and activation treatment thereof | |
| US2986502A (en) | Purification of titanium | |
| US20030106806A1 (en) | Electrochemical process for preparation of zinc metal | |
| SU533677A1 (en) | Alloys by Electrolysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20050913 Year of fee payment: 8 |
|
| LAPS | Lapse due to unpaid annual fee |