US508124A - Henri desire turgard - Google Patents
Henri desire turgard Download PDFInfo
- Publication number
- US508124A US508124A US508124DA US508124A US 508124 A US508124 A US 508124A US 508124D A US508124D A US 508124DA US 508124 A US508124 A US 508124A
- Authority
- US
- United States
- Prior art keywords
- turgard
- henri
- desire
- cellulose
- denitration
- 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
- 239000000020 Nitrocellulose Substances 0.000 description 7
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 229920001220 nitrocellulos Polymers 0.000 description 7
- 229940079938 nitrocellulose Drugs 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 229920002160 Celluloid Polymers 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920002955 Art silk Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- ZGSDJMADBJCNPN-UHFFFAOYSA-N [S-][NH3+] Chemical compound [S-][NH3+] ZGSDJMADBJCNPN-UHFFFAOYSA-N 0.000 description 1
- -1 celluloid Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
- C08K5/523—Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
Definitions
- My invention relates to a process for the denitration of nitro-cellulose and its oom- Dounds such as celluloid, xyloidine and the like.
- the threads of artificial silk obtained from nitrocellulose require to undergo the same treatment in order to prevent their too-readyinflam'rnability.
- Hitherto the denitration of nitro-cellulose has been effected by the employment of hydro-sulphate of ammonia or ammonium sulphide or other alkaline hydro-sulphates, but the filaments are liable to be stained by the deposit ,of sulphur consequent on the easy decomposition of these matters.
- My invention consists in aprocess whereby the same object is attained by the addition to hydro-sulphate of ammonia of any metallic sulphide, sulphide of silver for example, soluble in hydro-sulphate of ammonia whereby the objections above indicated are avoided.
- My invention may be carried out in practice in the following manner: With an apparatus for providing sulphureted hydrogen I combine washing bottles and cause the gas to enter a bottle containing a nitrate of silver solution and then through one or more bottles filled with ammonia in order to intercept the gas not used.
- the sulphureted hydrogen converts the nitrate of silver into sulphide of silver which is collected by means of a filter.
- the sil-' ver sulphide is dissolved in hydrosulphate of ammonia in the proportion of about two grams per liter.
- This solution when diluted in water is used for effecting the denitration of threads or slabs of nitrated cellulose or their compounds by immersion, care being taken that the temperature does not exceed about 20 centigrade. If by this treatment the denitrated matters acquire an objectionable brown tint they may be bleached or whitened by means of any suitable decolorizing agent, such as oxygenated water for example.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
NITED STATES PATENT OFFICE.
HENRI DEsIRE TURGARD, OF NANTERRE, FRANCE.
PROCESS OF DENITRATION 0F NlTRO-CELLULOSE AND ITS COMPOUNDS.
$PEGIFIGATION forming part of Letters Patent No. 508,124, dated November 7, 1893.
Application filed July 29,1893. Serial No. 481.863. (No specimens.) Patented in France January 18, 1392, No. 218,759.
To all whom it may concern.-
Be it knowntliat LHENRIDESIRE TURGARD, of the city of Nanterre, near Paris, France, have invented a certain new and useful Process for the Denitration of Nitro-Cellulose and its Compounds, (for which I have obtained Letters Patent in France for fifteen years, dated January 13, 1892, No. 218,759,) of which the following is a full, clear, and exact description.
My invention relates to a process for the denitration of nitro-cellulose and its oom- Dounds such as celluloid, xyloidine and the like.
For many uses Ditto-cellulose, and its compounds, require to be denitrated in order to render them less explosive and deprive them of their characteristic inflammable properties. For instance, the threads of nitrated cellulose employed in the manufacture of filaments for incandescent electric lamps necessarily require to be denitrated before being carbonized. Similarly the threads of artificial silk obtained from nitrocellulose require to undergo the same treatment in order to prevent their too-readyinflam'rnability. Hitherto the denitration of nitro-cellulose has been effected by the employment of hydro-sulphate of ammonia or ammonium sulphide or other alkaline hydro-sulphates, but the filaments are liable to be stained by the deposit ,of sulphur consequent on the easy decomposition of these matters.
My invention consists in aprocess whereby the same object is attained by the addition to hydro-sulphate of ammonia of any metallic sulphide, sulphide of silver for example, soluble in hydro-sulphate of ammonia whereby the objections above indicated are avoided.
My invention may be carried out in practice in the following manner: With an apparatus for providing sulphureted hydrogen I combine washing bottles and cause the gas to enter a bottle containing a nitrate of silver solution and then through one or more bottles filled with ammonia in order to intercept the gas not used. The sulphureted hydrogen converts the nitrate of silver into sulphide of silver which is collected by means of a filter.
To prepare the denitrating solution, the sil-' ver sulphide is dissolved in hydrosulphate of ammonia in the proportion of about two grams per liter. This solution when diluted in water is used for effecting the denitration of threads or slabs of nitrated cellulose or their compounds by immersion, care being taken that the temperature does not exceed about 20 centigrade. If by this treatment the denitrated matters acquire an objectionable brown tint they may be bleached or whitened by means of any suitable decolorizing agent, such as oxygenated water for example.
It is to be understood that the mode of preparation hereinbefore indicated may be varied without departing from the invention which resides in the process of denitration of nitro-cellulose and its compounds by means of a solution of any metallic sulphide soluble in hydrosulphate of ammonia.
The hereindescribed process for denitrating nitro-cellulose and its compounds such as celluloid, xyloidine and the like which consists in immersing the said material in a solution of hydro-sulphate of ammonia and a metallic sulphide, substantially as specified.
The foregoing specification of my process for the denitration of nitro-cellulose and its compounds signed by me this 5th dayof July, 1893.
HENRI DESIRE TURGARD.
Witnesses:
RoBT. M. HOOPER, ALBERT MOREAU.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US508124A true US508124A (en) | 1893-11-07 |
Family
ID=2576954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US508124D Expired - Lifetime US508124A (en) | Henri desire turgard |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US508124A (en) |
-
0
- US US508124D patent/US508124A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US508124A (en) | Henri desire turgard | |
| US500697A (en) | George webb | |
| US1942346A (en) | Process for the manufacture of cellulose solutions | |
| US658632A (en) | Process of making cuprammonium solutions. | |
| US868636A (en) | Nitro-starch explosive. | |
| US2718463A (en) | Sensitized magnesium powder and method of producing same | |
| US936177A (en) | Manufacture of incandescent gas-mantles. | |
| DE2346673A1 (en) | METHOD OF REMOVING MERCURY FROM GAS TROEMS | |
| US264987A (en) | Plastic compound from soluble cellulose | |
| US908754A (en) | Process for the production of cellulose solutions. | |
| US1157253A (en) | Process for the manufacture of ammonia from its elements. | |
| US1318339A (en) | Johahstes koeseit | |
| US966283A (en) | Incandescent gas-mantle and art of making same. | |
| US1279329A (en) | Manufacture of cellulose compounds. | |
| US987333A (en) | Manufacture of incandescent mantles. | |
| US172995A (en) | Improvement in the manufacture of soluble gun-cotton and products therefrom | |
| US1110481A (en) | Process of obtaining nitrates and nitrites from nitrate-nitrite mixtures. | |
| US2288106A (en) | Viscose spinning solution | |
| US2439147A (en) | Process for the manufacture of colloidal sulphur | |
| US930570A (en) | Igniting composition for matches. | |
| DE682905C (en) | Process for the production of 1,1-dichloroethane | |
| US420445A (en) | Soluble nitro-cellulose and process of manufacture | |
| US7816A (en) | Improvement in vulcanizing india-rubber | |
| US1092408A (en) | Process of making a composition for use in matches. | |
| DE801569C (en) | Process for the separation of hydrocyanic acid and hydrogen sulfide |