GB919872A - A method for recovery of selenium from a selenium or its compounds-enriched solution - Google Patents
A method for recovery of selenium from a selenium or its compounds-enriched solutionInfo
- Publication number
- GB919872A GB919872A GB3587160A GB3587160A GB919872A GB 919872 A GB919872 A GB 919872A GB 3587160 A GB3587160 A GB 3587160A GB 3587160 A GB3587160 A GB 3587160A GB 919872 A GB919872 A GB 919872A
- Authority
- GB
- United Kingdom
- Prior art keywords
- selenium
- oxide
- water
- gas
- acrylonitrile
- 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
Links
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 title abstract 10
- 229910052711 selenium Inorganic materials 0.000 title abstract 10
- 239000011669 selenium Substances 0.000 title abstract 10
- 238000000034 method Methods 0.000 title abstract 4
- 150000001875 compounds Chemical class 0.000 title abstract 3
- 238000011084 recovery Methods 0.000 title 1
- JPJALAQPGMAKDF-UHFFFAOYSA-N selenium dioxide Chemical compound O=[Se]=O JPJALAQPGMAKDF-UHFFFAOYSA-N 0.000 abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 5
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 4
- 239000007789 gas Substances 0.000 abstract 4
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 3
- 229910052760 oxygen Inorganic materials 0.000 abstract 3
- 239000001301 oxygen Substances 0.000 abstract 3
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 2
- 229960004643 cupric oxide Drugs 0.000 abstract 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract 2
- 150000004706 metal oxides Chemical class 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 230000003647 oxidation Effects 0.000 abstract 2
- 238000007254 oxidation reaction Methods 0.000 abstract 2
- 239000005751 Copper oxide Substances 0.000 abstract 1
- 239000005909 Kieselgur Substances 0.000 abstract 1
- -1 air or oxygen Chemical compound 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 229910000431 copper oxide Inorganic materials 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 abstract 1
- 229910000480 nickel oxide Inorganic materials 0.000 abstract 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 abstract 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 abstract 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 abstract 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 abstract 1
- 239000012495 reaction gas Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B19/00—Selenium; Tellurium; Compounds thereof
- C01B19/004—Oxides; Hydroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Selenium dioxide is produced from water containing free or combined selenium by introducing the water in atomized form into a gas comprising free oxygen, e.g. air or oxygen, in the presence of a metal oxide oxidation catalyst, preferably cupric oxide, ferric oxide, or nickel oxide, at a temperature of 500 DEG -700 DEG C. The oxide may be deposited on a carrier, e.g. silica or diatomaceous earth. The water containing the free or combined selenium may be obtained by contacting the reaction gas from a process for the production of, for example, acrolein or acrylonitrile from propylene, in the presence of selenium, with water at pH 7-9 and a temperature not exceeding 50 DEG C., and the selenium dioxide produced may also be used in such a process.ALSO:Acrylonitrile is prepared by contacting a propylene-air mixture at 310 DEG C. with metallic selenium which vaporizes, and a mixture of the resulting selenium-containing gas and ammonia is fed firstly over copper oxide at 400 DEG C. and secondly over molybdenum oxide. The product gas containing acrylonitrile is scrubbed with water which dissolves all selenium and compounds thereof present, and the solution so obtained is atomized into a gas comprising free oxygen in the presence of a metal oxide oxidation catalyst at a temperature of 500-700 DEG C. All selenium and compounds thereof present are converted to selenium dioxide which is used subsequently instead of selenium in the process for producing acrylonitrile.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3729960 | 1960-09-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB919872A true GB919872A (en) | 1963-02-27 |
Family
ID=12493809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3587160A Expired GB919872A (en) | 1960-09-08 | 1960-10-19 | A method for recovery of selenium from a selenium or its compounds-enriched solution |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE598196A (en) |
| GB (1) | GB919872A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112173450A (en) * | 2020-09-04 | 2021-01-05 | 广东长信精密设备有限公司 | Recycling equipment for industrial selenium-depleted material |
| CN112390232A (en) * | 2020-11-27 | 2021-02-23 | 广东先导稀贵金属材料有限公司 | Method for recovering zinc selenite |
-
1960
- 1960-10-19 GB GB3587160A patent/GB919872A/en not_active Expired
- 1960-12-14 BE BE598196A patent/BE598196A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112173450A (en) * | 2020-09-04 | 2021-01-05 | 广东长信精密设备有限公司 | Recycling equipment for industrial selenium-depleted material |
| CN112390232A (en) * | 2020-11-27 | 2021-02-23 | 广东先导稀贵金属材料有限公司 | Method for recovering zinc selenite |
Also Published As
| Publication number | Publication date |
|---|---|
| BE598196A (en) | 1961-03-31 |
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