US1851219A - Method of electrodeposition of zinc - Google Patents
Method of electrodeposition of zinc Download PDFInfo
- Publication number
- US1851219A US1851219A US302444A US30244428A US1851219A US 1851219 A US1851219 A US 1851219A US 302444 A US302444 A US 302444A US 30244428 A US30244428 A US 30244428A US 1851219 A US1851219 A US 1851219A
- Authority
- US
- United States
- Prior art keywords
- zinc
- lead
- metal
- electrodeposition
- electro
- 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 - Lifetime
Links
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title description 18
- 229910052725 zinc Inorganic materials 0.000 title description 17
- 239000011701 zinc Substances 0.000 title description 17
- 238000000034 method Methods 0.000 title description 8
- 238000004070 electrodeposition Methods 0.000 title description 4
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 5
- 235000012239 silicon dioxide Nutrition 0.000 description 5
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 229910000978 Pb alloy Inorganic materials 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 229920001817 Agar Polymers 0.000 description 2
- 229920000084 Gum arabic Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000978776 Senegalia senegal Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000000205 acacia gum Substances 0.000 description 2
- 235000010489 acacia gum Nutrition 0.000 description 2
- 239000008272 agar Substances 0.000 description 2
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 235000009529 zinc sulphate Nutrition 0.000 description 1
- 239000011686 zinc sulphate Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
Definitions
- I employ an anode consisting mainly of lead alloyed with it a certain propor- 29 tion of a metal or metals standing belowlead in the electro-chemical scale, such as silver, arsenic, bismuth, etc. I further add to the solution a small proportion of an inorganic colloid such as silicic acid.
- electrolyte the addition of a similar quantity of gum arabic, or of one quarter the amount of agar, is beneficial.
- the electrolysls is preferably conducted under conditions descrlbed in prior patents of the present applicant, namely, in, the presence of a large proportion of acid and at a high current density. Other conditions of electrolysis may, however, be employed.
- the zinc deposited un-. so der the above conditions carries only about one-tenth as much lead as does electrolytic zinc made in the usual way.
- the deposited metal both in the form. of cathode and after melting, is remarkably ductile and 6a malleable and may be put through severe mechanical operations such as drawin ⁇ spinrung, and stamping, to an extent to w ich it is impossible to subject ordinary zinc with success.
- the metal obtained is also of special value in the plating of thin zinc deposits on other metals as, for example, in the roduction of galvanized iron and steel. wing to the high purity of the metal, the resistance to corrosion is greater and'the adhesion of the zinc to the underlying metal is much stronger than when made by the ordinary method.
- the method of producing zinc deposits of great purityv and ductility which consists in using an anode composed of an alloy of lead with a small proportion of a metal electro-negative to lead, and carrying out the electrolysis in the presence of silicic acid.
- the method of producing zinc deposits of great purity and ductility which consists in using an anodecomposed of an alloy of lead with a small proportion of metal electro-negative to lead andcarrying out the clectrolysis in the presence of silicic acid and gum. arabic.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
- Electroplating Methods And Accessories (AREA)
Description
Patented Mar. 29, 1932 ,umranzys'rn UBLYN o.- rmron. communes-nae. rnansvm, son'm AFRICA METHOD OF ELEGTRODEPOSITION 01 ZINC Ho pavin This invention relates to an improved -method of electrodeposition of zinc and has 5 ri tyand high for its purpose of a new type,
of pure lead and to add to the solution a a greater or ter of the deposit.
lue to improve the charac- The zinc metal so ob tained,'however, is always contaminated to less degree with lead derived small amount of from the anode and the deposited metal is but having brittle and relatively difficult to work mechanically. According to the present invention, I employ an anode consisting mainly of lead alloyed with it a certain propor- 29 tion of a metal or metals standing belowlead in the electro-chemical scale, such as silver, arsenic, bismuth, etc. I further add to the solution a small proportion of an inorganic colloid such as silicic acid. It is frequently desirable to couple with the inorganic colloid the addition of an organic colloid not as gum -arabic precipitated by zinc sulphate solution, such or agar jelly. Under these conditions the zinc deposit obtained is much purer than by the ordinary method and at the same time the deposits are of exceptionally good quality, being very smooth, malleable, and ductile. It has been found possible to produce, directly from the cathode deposits, zinc foil-only one-sixteen thousandthsof an inch in thickness, and the metal may be rolled out indefinitely without annealing.
In carryingthis invention into ploy an anode "consisting mainly of lead but containing a small percentage, say 1%, of silver, bismuth, or arsenic. Other metals or combinations of metals electro-negative 'to lead may be employed although my preference is for. those mentioned, in the order named. To the electrolyte I add a solution of silicic acid orsodium silicate in the proportion of about one to five pounds of soluble silica per ton of zinc deposited. To insure a smooth deposit, and more especiallyif impurities are likely to effect, I embe present in the Application filed August 27, 1928. Serial No. 302,444.
electrolyte, the addition of a similar quantity of gum arabic, or of one quarter the amount of agar, is beneficial. The electrolysls is preferably conducted under conditions descrlbed in prior patents of the present applicant, namely, in, the presence of a large proportion of acid and at a high current density. Other conditions of electrolysis may, however, be employed.
It will be found that the zinc deposited un-. so der the above conditions carries only about one-tenth as much lead as does electrolytic zinc made in the usual way. Moreover the deposited metal, both in the form. of cathode and after melting, is remarkably ductile and 6a malleable and may be put through severe mechanical operations such as drawin \spinrung, and stamping, to an extent to w ich it is impossible to subject ordinary zinc with success. 3e
It will be found further, that under the above conditions the power required for electrolysis is substantially reduced as compared with ordinary practice, because not only is the current efiiciency exceptionally high, but the terminal voltage is lower than when using the ordinary conditions.
The metal obtained is also of special value in the plating of thin zinc deposits on other metals as, for example, in the roduction of galvanized iron and steel. wing to the high purity of the metal, the resistance to corrosion is greater and'the adhesion of the zinc to the underlying metal is much stronger than when made by the ordinary method.
Having thus described my invention, what I claim and desire to secure by Letters Patcut is:
1. In the ele'ctro-deposition of zinc, the method of producing zinc deposits of great purityv and ductility which consists in using an anode composed of an alloy of lead with a small proportion of a metal electro-negative to lead, and carrying out the electrolysis in the presence of silicic acid.
2. In the electro-deposition of zinc, the method of producing zinc deposits of great purity and ductility which consists in usin an anode composed of an alloy of lead an silver, and carrying out the electrolysis in the presence of silicic acid.
3. In the electro-deposition of zinc, the method of producing zinc deposits of great purity and ductility which consists in using an anodecomposed of an alloy of lead with a small proportion of metal electro-negative to lead andcarrying out the clectrolysis in the presence of silicic acid and gum. arabic.
URLYN C, TAINTON.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US302444A US1851219A (en) | 1928-08-27 | 1928-08-27 | Method of electrodeposition of zinc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US302444A US1851219A (en) | 1928-08-27 | 1928-08-27 | Method of electrodeposition of zinc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1851219A true US1851219A (en) | 1932-03-29 |
Family
ID=23167757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US302444A Expired - Lifetime US1851219A (en) | 1928-08-27 | 1928-08-27 | Method of electrodeposition of zinc |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1851219A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3755112A (en) * | 1972-02-01 | 1973-08-28 | Capital Wire And Cable Co | Electrowinning of copper |
| US3856637A (en) * | 1973-07-09 | 1974-12-24 | Lea Ronaf Inc | Methods of electroplating zinc and cyanide free or low cyanide zinc plating baths therefor |
| US4038170A (en) * | 1976-03-01 | 1977-07-26 | Rhees Raymond C | Anode containing lead dioxide deposit and process of production |
| US4181777A (en) * | 1978-09-07 | 1980-01-01 | Diamond Shamrock Technologies S.A. | Rechargeable zinc halogen battery |
| US20230257890A1 (en) * | 2020-10-15 | 2023-08-17 | SkyNano LLC | Systems and methods for manufacturing carbon black |
-
1928
- 1928-08-27 US US302444A patent/US1851219A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3755112A (en) * | 1972-02-01 | 1973-08-28 | Capital Wire And Cable Co | Electrowinning of copper |
| US3856637A (en) * | 1973-07-09 | 1974-12-24 | Lea Ronaf Inc | Methods of electroplating zinc and cyanide free or low cyanide zinc plating baths therefor |
| US4038170A (en) * | 1976-03-01 | 1977-07-26 | Rhees Raymond C | Anode containing lead dioxide deposit and process of production |
| US4181777A (en) * | 1978-09-07 | 1980-01-01 | Diamond Shamrock Technologies S.A. | Rechargeable zinc halogen battery |
| US20230257890A1 (en) * | 2020-10-15 | 2023-08-17 | SkyNano LLC | Systems and methods for manufacturing carbon black |
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