SU47288A1 - The method of preparation of catalytically active molybdenum dioxide - Google Patents
The method of preparation of catalytically active molybdenum dioxideInfo
- Publication number
- SU47288A1 SU47288A1 SU182010A SU182010A SU47288A1 SU 47288 A1 SU47288 A1 SU 47288A1 SU 182010 A SU182010 A SU 182010A SU 182010 A SU182010 A SU 182010A SU 47288 A1 SU47288 A1 SU 47288A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- preparation
- catalytically active
- molybdenum dioxide
- alcohol
- active molybdenum
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 3
- QXYJCZRRLLQGCR-UHFFFAOYSA-N dioxomolybdenum Chemical compound O=[Mo]=O QXYJCZRRLLQGCR-UHFFFAOYSA-N 0.000 title 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 235000010755 mineral Nutrition 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 125000001188 haloalkyl group Chemical group 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 238000001577 simple distillation Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Одним из способов получени диэтилмета-амидофенола вл етс введение в амино-группу метаниловой кислоты двух алкильнЬ1Х групп, выделение мета-диалкилметаниловой кислоты в виде натровой или калиевой соли и сплавление ее со щелочами. При этом согласно данным „Фирц-Давида (Kunstliche Organische Farbstoff, стр. 273, изд. 1926 г.) реакцию алкилировани провод т действием галоидоалки.ча в спирту в присутствии водного раствора едкого натра и соды.One of the methods for producing diethylmeta-amidophenol is to introduce into the amino group of methanilic acid two alkyl groups, the isolation of meta-dialkylmethanilic acid in the form of the sodium or potassium salt and its fusion with alkalis. In this case, according to the data of Firz-David (Kunstliche Organische Farbstoff, p. 273, ed. 1926), the alkylation reaction is carried out by the action of haloalkyl.ch in alcohol in the presence of an aqueous solution of caustic soda and soda.
Опыты показывают, что если добавл ть к спиртовой смеси 30 - 35%-й раствор едкого натра, обычно примен емый при реакци х алкилирозани (Фирц-Давид „Производство органических красок, стр. 145, изд. 1923 г.), то после фильтровани реакционной массы получаетс раствор, содержащий такие значительные количества минеральных солей, что отделить от них этилметаниловую кислоту простыми приемами кристаллизации с хорошим выходом не удаетс , продукт же сам по себе, полученный простой отгонкой спирта и воды, лвл етс непригодным дл плавки.Experiments show that if 30-35% sodium hydroxide solution, usually used in alkyl-nitrose reactions (Firz-David "Production of organic paints, p. 145, ed. 1923), is added to an alcohol mixture, after filtering the reaction mass produces a solution containing such significant amounts of mineral salts that ethylmethanilic acid cannot be separated from them by simple crystallisation techniques with good yield, and the product itself, obtained by simple distillation of alcohol and water, is unsuitable for melting.
Таким образом, главным затруднением этой реакции вл етс получение диэтилметаниловой кислоты, практически свободной от минеральных солей. Минеральные соли, в дальней-щем, при плавке вызывают снижение выхода и образование осмолов.Thus, the main difficulty in this reaction is the production of diethylmethanilic acid, which is practically free of mineral salts. Mineral salts, further, when smelting, cause a decrease in yield and the formation of osmols.
Другим затруднением вл етс прнмесь моно-алкилпроизводного, которое вызывает отклонение в оттенке красителей , получаемых из диалкил-мета-амидофенола , в сторону желтого.Another difficulty is the mixture of a mono-alkyl derivative, which causes a deviation in shade of the dyes obtained from dialkyl-meta-amidophenol towards yellow.
Дл получени практически свободной от минеральных солей диэтилметаниловой кислоты, содержащей моноалкил производного не более 1,5-3,0% и сразу после фильтровани и отгонки спирта пригодной дл щелочной плaвkи, авторы предлагают производить загрузку реактивов в автоклав без применени воды или ограничив ее количество таким образом, чтобы в результате смещени реактивов, при учете воды, образующейс в результате нейтрализации метаниловой кислоты, получить спирт с концентрацией не менее 80%.To obtain diethylmethanilic acid, which is practically free from mineral salts, containing a monoalkyl derivative of not more than 1.5-3.0% and immediately after filtering and distilling the alcohol suitable for alkaline plating, the authors propose to load reagents into an autoclave without using water or limiting its amount to Thus, as a result of the displacement of the reagents, taking into account the water formed as a result of the neutralization of methanilic acid, to obtain an alcohol with a concentration of at least 80%.
Концентраци едкой щелочи должна быть таким образом выбрана в соответствии с количеством и крепостью спирта.The concentration of caustic alkali must therefore be selected in accordance with the amount and strength of the alcohol.
В случае применени более разбавленных растворов щелочи перед фильтрованием необходимо добавить высчитанное количество спирта. При расчете конечной концентрации спирта должна быть также учтена вода, образующа с в результате реакции.In case of using more dilute alkali solutions, it is necessary to add the calculated amount of alcohol before filtering. In calculating the final alcohol concentration, the water resulting from the reaction must also be taken into account.
Опыты показывают, что весь едкий натр может быть заменен эквивалентным количеством соды, давление, однако, в этом случае, вследствие образовани больших количеств углекислоты, значиExperiments show that all caustic soda can be replaced by an equivalent amount of soda, the pressure, however, in this case, due to the formation of large amounts of carbon dioxide, means
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU182010A SU47288A1 (en) | 1935-12-10 | 1935-12-10 | The method of preparation of catalytically active molybdenum dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU182010A SU47288A1 (en) | 1935-12-10 | 1935-12-10 | The method of preparation of catalytically active molybdenum dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU47288A1 true SU47288A1 (en) | 1936-06-30 |
Family
ID=48360469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU182010A SU47288A1 (en) | 1935-12-10 | 1935-12-10 | The method of preparation of catalytically active molybdenum dioxide |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU47288A1 (en) |
-
1935
- 1935-12-10 SU SU182010A patent/SU47288A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1311377A (en) | Process for producing alkali metal phosphate solutions | |
| US1999614A (en) | New process of preparing aminoalkylsulphonic acids | |
| SU47288A1 (en) | The method of preparation of catalytically active molybdenum dioxide | |
| SU48288A1 (en) | Method for producing diethylmethanilic acid | |
| Walter et al. | The reduction of cyanides | |
| US2671800A (en) | Process of preparing bisulfite addition products of malonaldehyde | |
| US1999955A (en) | Production of resorcinol and mixtures thereof with phenol | |
| US1968300A (en) | Method of manufacturing aromatic carboxylic acids | |
| Brooks et al. | The preparation of benzoyl hydrogen peroxide | |
| US1573738A (en) | Preparation of organic derivatives of tin | |
| US2077133A (en) | Production of sulphonic acids and the salts thereof | |
| US1974821A (en) | Octoic acid derivatives of phenols | |
| SU38152A1 (en) | Method for preparing 8-hydroxyquinolysis | |
| US1907444A (en) | N-hydroxyethyl derivatives of nuclear substitution products of 4-amino-1-hydroxybenzene | |
| US2041593A (en) | Process of hydrolyzing chlor alkyl phenols | |
| US1789071A (en) | Manufacture of phenolic compounds | |
| US2740808A (en) | Methane sulphonic acids and production thereof | |
| US2204504A (en) | Manufacture of zinc hyposulphite | |
| US1607618A (en) | Manufacture of phenolic compounds | |
| US2306351A (en) | Gamme-acetyl-gamme-isopropenyl pimelic acid and method for its preparation | |
| US1970374A (en) | alpha-methylol-alpha-ethyl-butyraldehyde and process of preparing same | |
| GB416007A (en) | Improvements in or relating to the manufacture of cyanhydrins | |
| US1979033A (en) | Process for the manufacture of nsulphoethyl compounds of arylamino sulphonic acids | |
| SU1051057A1 (en) | Method for purifying p-cresol | |
| GB316444A (en) | Improvements in and relating to the production of salts of aromatic hydroxyaldehydes |