US89438A - Improved process of hardening- talc, steatite - Google Patents
Improved process of hardening- talc, steatite Download PDFInfo
- Publication number
- US89438A US89438A US89438DA US89438A US 89438 A US89438 A US 89438A US 89438D A US89438D A US 89438DA US 89438 A US89438 A US 89438A
- Authority
- US
- United States
- Prior art keywords
- talc
- salt
- steatite
- hardening
- improved process
- 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
- 239000000454 talc Substances 0.000 title description 14
- 229910052623 talc Inorganic materials 0.000 title description 14
- KNXVOGGZOFOROK-UHFFFAOYSA-N trimagnesium;dioxido(oxo)silane;hydroxy-oxido-oxosilane Chemical compound [Mg+2].[Mg+2].[Mg+2].O[Si]([O-])=O.O[Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O KNXVOGGZOFOROK-UHFFFAOYSA-N 0.000 title description 10
- 238000000034 method Methods 0.000 title description 8
- 239000011780 sodium chloride Substances 0.000 description 26
- 235000002639 sodium chloride Nutrition 0.000 description 26
- 150000003839 salts Chemical class 0.000 description 24
- 229940037003 alum Drugs 0.000 description 14
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 6
- 239000000395 magnesium oxide Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 235000015450 Tilia cordata Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
Definitions
- My invention is designedto effect the same purpose, and it consists in the following processes, viz:
- the salt, or the salt and alum may be first fused in the crucible, or the talc, &c., and the salt, or the salt and alum may be placed together in the crucible, or the tale, 850., may be first heated and the salt, or the salt and alum may then be placed in the crucible.
- the degree of heat applied to the tale, 850., whether salt, or salt and alum, is, or is not used prior to the immersion in the acid-bath, should be considerable but not up to a white heat.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
tater. 1 ggmm (Bf JAMESF. SELL, OF CAMBRIDGE, ASSIGNOR TO CHARLES HOUGH- TON, TRUSTEE, OF ROXBURY, MASSACHUSETTS.
Letters Patent No. 89,438, dated April 27, 1869.
IMPROVED PROCESS OI HARDENING- TALC, STEATITE, 81c.
The Schedule referred to in these Letters Patent and making part of the lime.
To all whom it may concern Be it known that I, JAMES F. SELL, of Cambridge,
in the county of Middlesex, and State of Massachusetts, have invented Improvements in the Treatment of Talc, Steatite, &c., to harden them; and I do hereby declare that the following'is a description of my invention, sufficient to enable those skilled in the art to practise it. Letters Patent of the United States, No. 71,919, were granted December 10, 1867, for the invention, by Henry Julius Smith, of a method of hardening talc, steatite, and other equivalent materials by heating them in a closed vessel, and in contact with carbon.
My invention is designedto effect the same purpose, and it consists in the following processes, viz:
- First, in heating in a crucible talc, steatite, silicate of aluminum, silicate of magnesia, or silicate of aluminum and magnesia, or articles formed therefrom, in contact with common salt, (chloride of sodium,) either alone or combined with alum, sulphate of aluminum, and then removing the tale, 8tc., or the articles formed therefrom, while hot and immersing them in a bath of sulphuric acid. 7
Second, in heating the said materials, or either of them, or articles formed therefrom, in a crucible, and then removing and immersing them while hot in a bath of sulphuric, nitric, muriatic, or other acid. After re moval from the said bath, the mat-erial,whethe'r treated by the first or second process, is washed with water, or with water containing an alkali to remove any adhering scale of the salt, or of the salt and alum, and any traces of the acid. 4
The salt, or the salt and alum, may be first fused in the crucible, or the talc, &c., and the salt, or the salt and alum may be placed together in the crucible, or the tale, 850., may be first heated and the salt, or the salt and alum may then be placed in the crucible.
The degree of heat applied to the tale, 850., whether salt, or salt and alum, is, or is not used prior to the immersion in the acid-bath, should be considerable but not up to a white heat.
' I claim the treatment of talc, or equivalent matter, or articles formed therefrom, by first beating them, with or without contact of salt, or salt and alum, and then immersing the tale or its equivalent while hot, in a sulphuric or other acid bath, substantially as described. I
JAMES F. SELL. Witnesses:
FRANCIS GOULD, 0. WARREN BROWN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US89438A true US89438A (en) | 1869-04-27 |
Family
ID=2158919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US89438D Expired - Lifetime US89438A (en) | Improved process of hardening- talc, steatite |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US89438A (en) |
-
0
- US US89438D patent/US89438A/en not_active Expired - Lifetime
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