US625479A - Berger - Google Patents
Berger Download PDFInfo
- Publication number
- US625479A US625479A US625479DA US625479A US 625479 A US625479 A US 625479A US 625479D A US625479D A US 625479DA US 625479 A US625479 A US 625479A
- Authority
- US
- United States
- Prior art keywords
- acetylene gas
- acid
- solution
- chromic
- parts
- 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
- KRVSOGSZCMJSLX-UHFFFAOYSA-L Chromic acid Chemical compound O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 36
- HSFWRNGVRCDJHI-UHFFFAOYSA-N acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 20
- 239000000243 solution Substances 0.000 description 20
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 4
- 230000001590 oxidative Effects 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- KIEOKOFEPABQKJ-UHFFFAOYSA-N Sodium dichromate Chemical compound [Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KIEOKOFEPABQKJ-UHFFFAOYSA-N 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- 239000002535 acidifier Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/64—Heavy metals or compounds thereof, e.g. mercury
Definitions
- This invention relates to a process of 'purifying acetylene gas.
- chromic acid oxidizes acetylene gas to acetic acid; but according to my experiments an aqueous or acetic solution of chromic acid which was obtained from chromic acid itself or from acidified chromates or bichromates acts upon the impure acetylene gas as the same is, for instance, obtained from carbid in such a manner that only the impu1'itiesas, for instance, sulfid of hydrogen and phosphoreted hydrogen-are oxidized.
- the impure acetylene gas is also deprived of the alkaline components-as, for instance, ammonia and basic polymerized compounds. According to the present invention this property of the chromic-acid solution is utilized for purifying acetylene gas in a simple and cheap manner.
- the invention is carried out in such a manner that the acetylene gas to be purified is passed or conducted through suitable washing apparatus in which is present the oxidation liquid either as such or absorbed by pumice-stone or any other suitable material.
- the degree of concentration of the chromicacid solution may vary within wide limits. Good results have been obtained from the following solutions: first, a solution containing twenty-five parts sodium bichromate and one hundred parts ten-per-cent. sulfuric acid; second, a solution containing thirty parts chromic acid, ninety-five parts water, and five parts sulfuric acid; third, a solution containing fifty parts chromic acid, fifty parts water, and one hundred parts glacial or crystallizable acetic acid. Such solutions are utilized in suitable cleansing or washing apparatus. The degree of concentration as against the above statements may be varied at pleasure Without the result undergoing any change of moment.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Gas Separation By Absorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
UNITED STATES PATENT OFFIcE.
FRITZ ULLHANN, OF FUERTH, GERMANY, ASSIGNOR TO ARON LANDS- BERGER, OF BERLIN, GERMANY.
PROCESS OF PURIFYING ACETYLENE GAS.
SPECIFICATION forming part of Letters Patent No. 625,4?9, dated May 23, 1899.
Application filed October 17, 1898. Serial No. 693,778. (No specimens) To all whom it may concern.-
Be it known that I, FRITZ ULLMANN, chemist, a subject of the Emperor of Germany, and a resident of No. 42 Marktstrasse, Fuerth, Bavaria, in the Empire of Germany, have invented a certain new and useful Improved Process of Purifying Acetylene Gas, of which the following is an exact, full, and clear description.
This invention relates to a process of 'purifying acetylene gas. According to the statements of literature chromic acid oxidizes acetylene gas to acetic acid; but according to my experiments an aqueous or acetic solution of chromic acid which was obtained from chromic acid itself or from acidified chromates or bichromates acts upon the impure acetylene gas as the same is, for instance, obtained from carbid in such a manner that only the impu1'itiesas, for instance, sulfid of hydrogen and phosphoreted hydrogen-are oxidized. Since the action takes effect in an acidic solution, the impure acetylene gas is also deprived of the alkaline components-as, for instance, ammonia and basic polymerized compounds. According to the present invention this property of the chromic-acid solution is utilized for purifying acetylene gas in a simple and cheap manner.
The invention is carried out in such a manner that the acetylene gas to be purified is passed or conducted through suitable washing apparatus in which is present the oxidation liquid either as such or absorbed by pumice-stone or any other suitable material.
The degree of concentration of the chromicacid solution may vary within wide limits. Good results have been obtained from the following solutions: first, a solution containing twenty-five parts sodium bichromate and one hundred parts ten-per-cent. sulfuric acid; second, a solution containing thirty parts chromic acid, ninety-five parts water, and five parts sulfuric acid; third, a solution containing fifty parts chromic acid, fifty parts water, and one hundred parts glacial or crystallizable acetic acid. Such solutions are utilized in suitable cleansing or washing apparatus. The degree of concentration as against the above statements may be varied at pleasure Without the result undergoing any change of moment.
Having now particularly described and ascertained-the nature of the said invention, I declare that what I claim, and Wish to secure by Letters Patent, is-
The herein-described process of purifying acetylene gas consisting in treating impure acetylene gas with oxidizing chromic compounds in which the chrome is present as an acidifier, for instance, with chromic acid or aqueous or acidified chromic-acid solution or acidified biohromate solution for the purpose of oxidizing the impurities of the acetylene.
In witness whereof I have hereunto set my hand in presence of two witnesses.
FRITZ ULLMANN.
Witnesses:
BENJ. H. RIDGELY, E. F. BARRY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US625479A true US625479A (en) | 1899-05-23 |
Family
ID=2694082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US625479D Expired - Lifetime US625479A (en) | Berger |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US625479A (en) |
-
0
- US US625479D patent/US625479A/en not_active Expired - Lifetime
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