US190550A - Chaeles a - Google Patents
Chaeles a Download PDFInfo
- Publication number
- US190550A US190550A US190550DA US190550A US 190550 A US190550 A US 190550A US 190550D A US190550D A US 190550DA US 190550 A US190550 A US 190550A
- Authority
- US
- United States
- Prior art keywords
- tin
- scrap
- solution
- boiler
- tank
- 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
- 229910052718 tin Inorganic materials 0.000 description 22
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 238000000034 method Methods 0.000 description 16
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 241000288140 Gruiformes Species 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 8
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 8
- 235000002639 sodium chloride Nutrition 0.000 description 8
- 239000011780 sodium chloride Substances 0.000 description 8
- 239000003518 caustics Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- VWDWKYIASSYTQR-UHFFFAOYSA-N Sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 235000011118 potassium hydroxide Nutrition 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 229940071182 stannate Drugs 0.000 description 4
- 125000005402 stannate group Chemical group 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 241000124872 Grus grus Species 0.000 description 2
- 241000220010 Rhode Species 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N Sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N Tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- AXZWODMDQAVCJE-UHFFFAOYSA-L Tin(II) chloride Chemical compound [Cl-].[Cl-].[Sn+2] AXZWODMDQAVCJE-UHFFFAOYSA-L 0.000 description 2
- 230000001464 adherent Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000010908 decantation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 235000015320 potassium carbonate Nutrition 0.000 description 2
- 239000003638 reducing agent Substances 0.000 description 2
- 239000005028 tinplate Substances 0.000 description 2
Images
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
- C22B25/00—Obtaining tin
- C22B25/06—Obtaining tin from scrap, especially tin scrap
Definitions
- Our invention consists in providing an effective and economical process for the utilization of waste tinners scrap, old tin, or other tinned metallic surfaces, whereby the tin is recovered, either as a valuable salt of that metal, or in the metallic form, and the iron or other metal is left as a scrap at once available for reworking, and thereby that which is now a cumbersome Waste is rendered a valuable source of industry and revenue.
- Our process consists in subjecting the scrap or tinned material to be operated upon, having previously been sprinkled or treated with common salt or other-chloride and nitrate of soda or other nitrate, to immersion in a hot or boiling solution of caustic soda of potash, and then washing the same in water, by which process the tin is removed, and the scrap left free for use in any manner, or for any purpose to which the material is adapted, and the tin which has been removed by the immersion and washings is recovered by evaporation of the liquids holding it in solution, or by Super charging the caustic solution with the stannic salt.
- the loaded basket being elevated by the crane A is then swung round, and, by lowering, submerged in the hot or boiling solution of caustic soda or potash in the iron boiler D, which may hold in solution a further proportion of the chloride and hitrate used, the heat of which solution is maintained by a fire beneath the boiler, or in any other and ordinary way.
- the oxygen of the nitrate combines with the tin to form stannic acid, and this, in turn, combining with the alkali present forms a stannate of that base, which, entering into solution, leaves the before-plated metal tin free, the chloride present assisting in the reaction.
- the loss by evaporation from the boiler D is supplied by the wash-water in the tank G, this, in turn, being supplied by -the wash-water in the tank B, to which fresh water is supplied, as required.
- the caustic solution is sufficiently charged with the tin-salt it is allowed to deposit the impure crystals, which, being removed and drained, are redissolved in water in the iron tank E.
- This solution in the iron tank E after filtration or decantation is again concentrated in the evaporating pan F, the crystals of stannate being removed from time to time, drained, and dried; or the impure crystals obtained in the boiler D may be mixed with fine charcoal, or other reducing agent, and subjected to the requisite heat for the reduction of the tin to the metallic form.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
-c. A. CATLIN & e. F. WILSON. PROCESS or UTILIZING III SCRAP. No. 190,550. I Patented May 8,1877.
. IIHIIIIIIII {3% du /Q. 1.
'FETERS. FHDTO-LITHOGRAFHER. WASHINGTON. n C.
QHARLES A. GATLIN AND GEORGE F. WILSON, OF PROVIDENCE, R. I.
IMPROVEMENT IN PROCESSES OF UTILIZING TIN SCRAP.
Specification forming part of Letters Patent No. 190,550, dated May 8, 1877; application filed To all whom it may concern Be it known that we, CHARLES A. OATLIN and GEORGE F. WILSON, of Providence, in the county of Providence, in the State of Rhode Island, have invented a new and useful Improvement in Process of Utilizing Tin Scrap, or other tinned metallic surfaces; and we do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.
Our invention consists in providing an effective and economical process for the utilization of waste tinners scrap, old tin, or other tinned metallic surfaces, whereby the tin is recovered, either as a valuable salt of that metal, or in the metallic form, and the iron or other metal is left as a scrap at once available for reworking, and thereby that which is now a cumbersome Waste is rendered a valuable source of industry and revenue.
Our process consists in subjecting the scrap or tinned material to be operated upon, having previously been sprinkled or treated with common salt or other-chloride and nitrate of soda or other nitrate, to immersion in a hot or boiling solution of caustic soda of potash, and then washing the same in water, by which process the tin is removed, and the scrap left free for use in any manner, or for any purpose to which the material is adapted, and the tin which has been removed by the immersion and washings is recovered by evaporation of the liquids holding it in solution, or by Super charging the caustic solution with the stannic salt.
The apparatus which we have found most convenient in practice we describeas follows:
We erect in any suitable building or locality a common crane, A, and place in the sweep of that crane, in any convenient order, a boiler, D, and two tanks, B and G. We place in any convenient position, but not necessarily in the sweep of the crane, an evaporating-pan, F, and an additional tank, E. From the crane we suspend a wire basket, or any suitable vessel to contain the scrap to be treated, so
perforated as to admit of the ready entrance of the liquid when submerged in, and its ready, escape when withdrawn from, the boiler D, in which boiler we put a sufiicient quan- June 7, 1876.
tity of the solution of caustic soda or potash to allow of a complete submersion therein of the basket and its contents. We then fill the basket G with the material to be treated, sprinkling in during the filling the requisite quantity of common salt or other chloride and nitrate of soda or other nitrate, using these dry, not in solution, either previously mixed or shaken in together in the proportion of from three to live pounds each to every hundred pounds of scrap, the requisite quantity depending upon the thickness of the tin plate to be removed. The loaded basket being elevated by the crane A is then swung round, and, by lowering, submerged in the hot or boiling solution of caustic soda or potash in the iron boiler D, which may hold in solution a further proportion of the chloride and hitrate used, the heat of which solution is maintained by a fire beneath the boiler, or in any other and ordinary way. In the ensuing reaction the oxygen of the nitrate combines with the tin to form stannic acid, and this, in turn, combining with the alkali present forms a stannate of that base, which, entering into solution, leaves the before-plated metal tin free, the chloride present assisting in the reaction. A further and more complex reaction takes place, by which copious fumes of ammonia are evolved, which may be utilized by proper appliances. When the reaction is complete the basket containing the now tin-freed scrap is withdrawn from the boiler, and suspended above it long enough to drain. It is then swung over the tank 0 containing water, in which it is washed by submerging and Withdrawing several times, and in like manner the washing completed in the water of the tank B. The con tents of the basket being now discharged, it is again filled with fresh scrap, in the manner already described, and the process repeated. The loss by evaporation from the boiler D is supplied by the wash-water in the tank G, this, in turn, being supplied by -the wash-water in the tank B, to which fresh water is supplied, as required. When the caustic solution is sufficiently charged with the tin-salt it is allowed to deposit the impure crystals, which, being removed and drained, are redissolved in water in the iron tank E. This solution in the iron tank E after filtration or decantation is again concentrated in the evaporating pan F, the crystals of stannate being removed from time to time, drained, and dried; or the impure crystals obtained in the boiler D may be mixed with fine charcoal, or other reducing agent, and subjected to the requisite heat for the reduction of the tin to the metallic form.
What we claim as our invention, and desire to secure by Letters'Patent, is
The process of utilizing tinned scrap or of separating adherent tin from other metals, which consists in sprinkling the scrap with dry chloride of sodium or potassium and nitrate of sodium or potassium, and then immersing it in a caustic alkaline solution until the tin is entirely dissolved, whereby the two metals previously united are separated from each other, and can afterward be used in the arts, substantially as herein set forth.
CHAS. A. OATLIN. GEO.-F. WILSON. Witnesses:
H. J. BLOSSFORI), HENRY PITMAN.
Publications (1)
Publication Number | Publication Date |
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US190550A true US190550A (en) | 1877-05-08 |
Family
ID=2259957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US190550D Expired - Lifetime US190550A (en) | Chaeles a |
Country Status (1)
Country | Link |
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US (1) | US190550A (en) |
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- US US190550D patent/US190550A/en not_active Expired - Lifetime
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