US87132A - Improved amalgamated plate for collecting gold and silver - Google Patents
Improved amalgamated plate for collecting gold and silver Download PDFInfo
- Publication number
- US87132A US87132A US87132DA US87132A US 87132 A US87132 A US 87132A US 87132D A US87132D A US 87132DA US 87132 A US87132 A US 87132A
- Authority
- US
- United States
- Prior art keywords
- silver
- amalgamated
- improved
- collecting
- collecting gold
- 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
- 229910052709 silver Inorganic materials 0.000 title description 6
- 239000004332 silver Substances 0.000 title description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title description 4
- 229910052737 gold Inorganic materials 0.000 title description 4
- 239000010931 gold Substances 0.000 title description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 8
- 239000010970 precious metal Substances 0.000 description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 8
- 229910052725 zinc Inorganic materials 0.000 description 8
- 239000011701 zinc Substances 0.000 description 8
- 229910000497 Amalgam Inorganic materials 0.000 description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 6
- 229910052753 mercury Inorganic materials 0.000 description 6
- 229940037003 alum Drugs 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 102000004405 Collectins Human genes 0.000 description 2
- 108090000909 Collectins Proteins 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003245 working Effects 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/10—Obtaining noble metals by amalgamating
Definitions
- the object of our invention is to provide a substitute for the amalgamated copper plates now used for 'collecting the precious metals, and one that will be equally,
- Copper plates have heretofore been used for producing' an amalgamated surface for collecting precious metals, and while their cost is great, their destructibility renders them a heavy item of expense to miners.
- the hydrochloric acid may be added to the zincamalgam, instead of first cleaning the iron with it, if desired, and will serve, perhaps, quite as good a purpose; but it need only be used when the surface of the iron is rusty, or covered with any foreign substance, or the metal may first be covered with zinc, and the mer- Gilly afterward applied with alum.
- Zinc amalgam for coating metal surfaces; substituting the same for amalgamated'copper, for collecting precious metals, substantially as described.
Description
MELVILLE ATTWOOD AND-JOHN ROACH, OF SAN FRANCISCO,
. CALIFORNIA.
Letters Patent No. 87,132, dated February 23, 1869.
IMPROVED AMALG-AMATHD PLATE FOR. COLLECTIN GOLD AND SILVER The Schedule referred to in these Letters Patent and making part of the lane.
To all whomit may concern provements without further invention or experiment.
The object of our invention is to provide a substitute for the amalgamated copper plates now used for 'collecting the precious metals, and one that will be equally,
if not more effective, and can be produced at a much less expense.
Mining operations being generally done upon a great scale, and profit being the 'sole object. cheap materials and effective workings are points always sought to be gained.
Copper plates have heretofore been used for producing' an amalgamated surface for collecting precious metals, and while their cost is great, their destructibility renders them a heavy item of expense to miners.
Now, we propose to substitute, in place of copper, the cheaper metal, iron, and to give it an amalgamated surface, that will have a greater aflinity for gold and silver than the copper-amalgamated surface; and, to do this, we first clean the surface of the iron, if old and rusty, with dilute hydrochloric acid, and then coat it thorou gbl y with zinc-amalgam, to which we add a small portion of dry, powdered alum.
' This forms a complete amalgamated surface, which will attract and retain any metal having an aifinity for mercury, superior to the common copper-amalgamated surfaces.
The hydrochloric acid may be added to the zincamalgam, instead of first cleaning the iron with it, if desired, and will serve, perhaps, quite as good a purpose; but it need only be used when the surface of the iron is rusty, or covered with any foreign substance, or the metal may first be covered with zinc, and the mer- Gilly afterward applied with alum.
By this means, we are enabled to give' an amalga mated surface, that will be recognized at once as being a great improvement in collecting the precious metals, the combination of the zinc and mercury forming an amalgam having strong retentive powers, and capable of performing better services than the copper-amalg amated plates, while the cost will be much less.
' Having thus described our invention,
What we claim, and desire to secure by Letters Patent, is-
1. Zinc amalgam for coating metal surfaces; substituting the same for amalgamated'copper, for collecting precious metals, substantially as described.
2. The application of mercury to metals covered with zinc, substantially as and 'for the purposes herein described. Y V
In witness whereof, we have hereunto set our hands and seals.
MELVILLE ATTWOOD. [L. s.]
Witnesses: JOHN ROAOH. [1,. s.]
J. L. Boonn, E.- '1. SAWYER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US87132A true US87132A (en) | 1869-02-23 |
Family
ID=2156617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US87132D Expired - Lifetime US87132A (en) | Improved amalgamated plate for collecting gold and silver |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US87132A (en) |
-
0
- US US87132D patent/US87132A/en not_active Expired - Lifetime
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