SU166670A1 - METHOD OF OBTAINING CARBON ACIDS - Google Patents
METHOD OF OBTAINING CARBON ACIDSInfo
- Publication number
- SU166670A1 SU166670A1 SU873720A SU873720A SU166670A1 SU 166670 A1 SU166670 A1 SU 166670A1 SU 873720 A SU873720 A SU 873720A SU 873720 A SU873720 A SU 873720A SU 166670 A1 SU166670 A1 SU 166670A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- catalyst
- butane
- obtaining carbon
- carbon acids
- parts
- Prior art date
Links
- 150000001721 carbon Chemical class 0.000 title 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 15
- 239000003054 catalyst Substances 0.000 description 11
- 239000001273 butane Substances 0.000 description 8
- IJDNQMDRQITEOD-UHFFFAOYSA-N butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium(0) Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 3
- GNTDGMZSJNCJKK-UHFFFAOYSA-N Vanadium(V) oxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- UXJVWJGDHIZPLD-UHFFFAOYSA-O Ammonium vanadate Chemical compound [NH4+].O=[V-](=O)=O UXJVWJGDHIZPLD-UHFFFAOYSA-O 0.000 description 1
- VWBLQUSTSLXQON-UHFFFAOYSA-O [NH4+].[V+5] Chemical compound [NH4+].[V+5] VWBLQUSTSLXQON-UHFFFAOYSA-O 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- GRUMUEUJTSXQOI-UHFFFAOYSA-N vanadium dioxide Chemical compound O=[V]=O GRUMUEUJTSXQOI-UHFFFAOYSA-N 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
Description
Известен способ получени карбоновых кислот путем парофазного окислени предельнь1х углеводородов при температуре от 200 до 500°С в присутствии п тиокиси ванади . Степень окислени при этом не превышает 7% на исходный продукт.A known method of producing carboxylic acids by vapor-phase oxidation of saturated hydrocarbons at a temperature of 200 to 500 ° C in the presence of vanadium pentoxide. The degree of oxidation does not exceed 7% of the initial product.
С целью увеличени степени окислени и выхода готового продукта, предложен снособ получени карбоновых кислот путем парофазного окисленн предельных углеводородов прн 200-500°С с четырехокисью ванади в качестве катализатора.In order to increase the degree of oxidation and yield of the finished product, a method for obtaining carboxylic acids by vapor-phase oxidized saturated hydrocarbons of 200-500 ° C with vanadium tetroxide as a catalyst has been proposed.
Пример 1. Исходный газ - бутан, к которому примешивают 1 -1,5 объема воздуха (40 частей бутана, 12 частей кислорода и 48 частей азота по объему), пропускают над катализатором при температуре 325°С. Катализатор изготовл ют повторной нропиткой гранулированной пемзы насыщенным раствором ванадата аммони . После высушивани катализатора разлагают ванадий аммони нагреванием при 500°С. Восстановлением катализатора водородом при 400 -500°С в течение 3 час получают катализатор, содержащий 35-40% окиси четырехвалентного ванади . Выход щий из реактора газ содержит уксусную кислоту 3 е на 100 л исходной смеси или 7,5 г на 100 л исходного бутана. В один прием окисл етс 3,8-4% бутана. Выход щий газ содержит, кроме уксусной кислоты, СОа и СО. Количество уксусной кислоты составл ет 37-38% от продуктов окислени .Example 1. The source gas - butane, which is mixed with 1 -1.5 volumes of air (40 parts of butane, 12 parts of oxygen and 48 parts of nitrogen by volume), is passed over the catalyst at a temperature of 325 ° C. The catalyst is made by repeated impregnation of granulated pumice with a saturated solution of ammonium vanadate. After drying the catalyst, ammonium vanadium is decomposed by heating at 500 ° C. By reducing the catalyst with hydrogen at 400-500 ° C for 3 hours, a catalyst is obtained containing 35-40% of tetravalent vanadium oxide. The gas leaving the reactor contains acetic acid 3 e per 100 liters of the initial mixture or 7.5 g per 100 liters of original butane. At one time, 3.8-4% of butane is oxidized. The effluent gas contains, in addition to acetic acid, COa and CO. The amount of acetic acid is 37-38% of the oxidation products.
П р и м е р 2. Катализатор готов т таблетированием чистой п тиокиси ванади с последующим восстановлением катализатора водородом при 400-500°С. Через полученный катализатор пропускают газ, содержащий 20 частей бутана , 20 частей кислорода и 60 частей азота, нри температуре 270-280°С. Врем контакта 15 сек. В один прием окисл етс 12-13% бутана , причем 36-40% бутана окисл етс в уксусную кислоту (24-26 г уксусной кислоты на 100 л бутана).EXAMPLE 2 The catalyst is prepared by tabletting pure vanadium pentoxide with subsequent reduction of the catalyst with hydrogen at 400-500 ° C. A gas containing 20 parts of butane, 20 parts of oxygen and 60 parts of nitrogen is passed through the resulting catalyst at a temperature of 270-280 ° C. Contact time 15 sec. At one time, 12–13% of butane is oxidized, with 36–40% of butane being oxidized to acetic acid (24–26 g of acetic acid per 100 liters of butane).
Предмет изобретени Subject invention
Способ получени карбоновых кислот путем парофазного окислени предельных углеводородов при температуре 200-500°С в присутствии ванадиевого катализатора, отличающийс тем, что, с целью увеличени степени окислени и выхода готового нродукта, в качестве катализатора используют четырехокись ванади .A method of producing carboxylic acids by vapor-phase oxidation of saturated hydrocarbons at a temperature of 200-500 ° C in the presence of a vanadium catalyst, characterized in that, in order to increase the degree of oxidation and yield of finished product, vanadium tetroxide is used as a catalyst.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU166670A1 true SU166670A1 (en) |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3997602A (en) * | 1974-11-25 | 1976-12-14 | Celanese Corporation | Production of acetic acid using a vanadium tetroxide/non-porous silica co-catalyst composition |
| EP0002481A1 (en) * | 1977-12-12 | 1979-06-27 | Celanese Corporation | A process for preparing acetic acid by the vapor phase oxidation of lower aliphatic hydrocarbons |
| US4200764A (en) * | 1977-12-12 | 1980-04-29 | Celanese Corporation | Oxidation of aliphatic hydrocarbons with high strength hydrocarbon oxidation catalyst |
| US4328365A (en) * | 1979-08-10 | 1982-05-04 | Celanese Corporation | Hydrocarbon oxidation via carbon monoxide reduced catalyst |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3997602A (en) * | 1974-11-25 | 1976-12-14 | Celanese Corporation | Production of acetic acid using a vanadium tetroxide/non-porous silica co-catalyst composition |
| EP0002481A1 (en) * | 1977-12-12 | 1979-06-27 | Celanese Corporation | A process for preparing acetic acid by the vapor phase oxidation of lower aliphatic hydrocarbons |
| US4195188A (en) * | 1977-12-12 | 1980-03-25 | Celanese Corporation | Steam assisted hydrocarbon oxidation process |
| US4200764A (en) * | 1977-12-12 | 1980-04-29 | Celanese Corporation | Oxidation of aliphatic hydrocarbons with high strength hydrocarbon oxidation catalyst |
| US4328365A (en) * | 1979-08-10 | 1982-05-04 | Celanese Corporation | Hydrocarbon oxidation via carbon monoxide reduced catalyst |
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