SU106780A1 - The method of purification of acetic acid from formic - Google Patents
The method of purification of acetic acid from formicInfo
- Publication number
- SU106780A1 SU106780A1 SU454952A SU454952A SU106780A1 SU 106780 A1 SU106780 A1 SU 106780A1 SU 454952 A SU454952 A SU 454952A SU 454952 A SU454952 A SU 454952A SU 106780 A1 SU106780 A1 SU 106780A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acetic acid
- purification
- formic
- acid
- formic acid
- Prior art date
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- Catalysts (AREA)
Description
Получаема окислением ацета.1Ь-. дегида синтетическа уксусна кислота содержит примесь му )авьино11 кислоты (0,5-1,0%).В некоторых случа х эта примесь вл егс вредной, в св зи с чем получаема сыра синтетическа уксусна кнс.юта подвергаетс очисчке от муравьиной кислоты. Известен способ очистки уксусной кислоты каталитическим разложением муравьиной кислоты на се №бр ном катализа юре.The resulting oxidation of aceta.1b-. The dehydrated synthetic acetic acid contains impurity of avionic acid (0.5-1.0%). In some cases, this impurity is harmful, which is why the synthetic acetic acid produced cheese is cleared from formic acid. A known method for the purification of acetic acid by the catalytic decomposition of formic acid in sulfur is unbranched.
Обычный способ очистки уксусной кислоты от муравьиной кислоты заключаетс в обработке сырой кислоты нерманганаюм кали . Однако этот сиособ соир жен со значительными потер ми уксусной кислоты, составл юними 4- 5Уо от количества.A common method of purifying acetic acid from formic acid is to treat the crude acid Nermanganium Potassium. However, this siozob soobrazhen with significant losses of acetic acid, amounted to 4-5% of the amount.
Насто щее изобретение дает возможность избежать этих иотерь и одновременно уиростить ироцесс очистки. Сун1,ность изобретени соclOHi в том, ч1о очистка уксусной кис.юты от муравьино кислоты производитьс иутем каталитического разложени последней, ,.| емого пропусканием иаров сырой кислоти при температуреThe present invention makes it possible to avoid these and losing, and at the same time to wash out the purification process. According to the invention, co-ClOHi, in that the purification of acetic acid from formic acid by acetic acid is carried out by catalytic decomposition of the latter,,. transmission of crude acid at temperature
200-250 над н келевым катализатором . Содержание муравьино кислоты Hoc.ie такой обработки снижаетс до 0,ri04-0,u5/o. Примен ем1 п .1евый катализатор можно roTOBirrb, например, с.ледуlonuiM образом: очищенную пемзу ироиитывают водным раство|зо-м азотнокис.1010 никел . После вынаривани воды и удалени окислов азота с помощью прокаливани полученную окись никел восстанавл1 вают в контактной) трубке пронусканием водорода прп температуре оО,)- 310°.200-250 over a Calcium catalyst. The content of formic acid Hoc.ie of such treatment is reduced to 0, ri04-0, u5 / o. Using a catalyst can be roTOBirrb, for example, in the following way: the purified pumice stone is washed with an aqueous solution of nitrogen and nickel nickel. After extracting water and removing nitrogen oxides by calcining, the resulting nickel oxide is reduced in the contact tube by passing hydrogen at a temperature oO,) - 310 °.
Пример 1. Пары yKCycnoii кис.юты, сод..ержаще1 0,32,,, муравьиной кислоты, пропускаюте при 230° со скоростью 60 г час через 5 г никел , осажденного на 15 г немзы. Содержание муравьиHOii КИС.ЮТЫ иосле контактировани составл ет 0,.Example 1. Couples yKCycnoii acidic, sod .. more commonly 1, 0.32 ,, formic acid, passed at 230 ° at a speed of 60 g per hour after 5 g of nickel deposited on 15 g of Nemza. The content of the anodes of the CID UTA and after contacting is 0 ,.
П р и м е р 2. Пары уксусной кислоты с содержанием 0,5/о муравьиной кислоты пропускаютс при той же температуре через тот же катализатор со скоростью 20 2,час. (Содержание муравьино кислоты после контактировани состав. (J,004-/t.PRI mme R 2. A pair of acetic acid with a content of 0.5 / o formic acid is passed at the same temperature through the same catalyst at a rate of 20 2, an hour. (The content of formic acid after contacting the composition. (J, 004- / t.
,М 106780- о M 106780- about
Предмет изобретени Subject invention
Способ очистки уксусной кисло-с целью упрощени и удешевлеты от муравьиной посредством ка-ни процесса, пары уксусной киталитического разложени послед-слоты пропускают над нике.тевымThe method of purification with acetic acid in order to simplify and reduce the price of formic acid by means of a process, a pair of acetic acid catalytic decomposition of the last-slots is passed over the nickel.
ней, отличающийс тем, что,катализатором.characterized in that catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU454952A SU106780A1 (en) | 1956-01-06 | 1956-01-06 | The method of purification of acetic acid from formic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU454952A SU106780A1 (en) | 1956-01-06 | 1956-01-06 | The method of purification of acetic acid from formic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU106780A1 true SU106780A1 (en) | 1956-11-30 |
Family
ID=48380039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU454952A SU106780A1 (en) | 1956-01-06 | 1956-01-06 | The method of purification of acetic acid from formic |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU106780A1 (en) |
-
1956
- 1956-01-06 SU SU454952A patent/SU106780A1/en active
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