SU182703A1 - METHOD FOR OBTAINING SILK METAL BICARBONATES - Google Patents
METHOD FOR OBTAINING SILK METAL BICARBONATESInfo
- Publication number
- SU182703A1 SU182703A1 SU1016572A SU1016572A SU182703A1 SU 182703 A1 SU182703 A1 SU 182703A1 SU 1016572 A SU1016572 A SU 1016572A SU 1016572 A SU1016572 A SU 1016572A SU 182703 A1 SU182703 A1 SU 182703A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- metal bicarbonates
- obtaining silk
- silk metal
- carbonization
- carbon dioxide
- Prior art date
Links
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 title description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 238000003763 carbonization Methods 0.000 description 6
- 235000015320 potassium carbonate Nutrition 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 5
- 239000001569 carbon dioxide Substances 0.000 description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 4
- 229940072033 potash Drugs 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 2
- 230000005712 crystallization Effects 0.000 description 2
- 239000001184 potassium carbonate Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- -1 alkali metal bicarbonates Chemical class 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
Description
Известно получение бикарбонатов поблочных металлов путем карбонизации чистой газообразной углекислотой растворов соды или поташа при атмосферном давлении и нагревании до температуры 60-65° С дл раствора соды и 40-50°С дл раствора поташа. Врем карбонизации раствора соды 6-8 час, врем карбонизации раствора поташа 13-14 час. Степень использовани сырь остаетс низкой, продолжительность процесса высокой, не отпадает необходимость отдельной стадии кристаллизации в аппарате-кристаллизаторе.It is known to produce block metal bicarbonates by carbonizing with pure gaseous carbon dioxide soda solutions or potash at atmospheric pressure and heating to a temperature of 60-65 ° C for soda solution and 40-50 ° C for potash solution. The carbonization time of the soda solution is 6-8 hours, the carbonization time of the potash solution is 13-14 hours. The degree of use of raw materials remains low, the duration of the process is high, there is no need for a separate stage of crystallization in the apparatus-crystallizer.
С целью устрапени указанных недостатков предлагаетс вести процесс карбонизации ПОД давлением около 5 ати и температуре на первой стадии - около 50°С и 20--25° С - на второй . Одновременно с карбонизацией процсходит кристаллизаци готового продукта. Врем обработки растворов соды 1 час, врем обработки растворов поташа 2 час.In order to eliminate these drawbacks, it is proposed to carry out the process of carbonization under a BP of about 5 MPa and a temperature in the first stage - about 50 ° C and 20-25 ° C - on the second. Simultaneously with carbonization, crystallization of the finished product proceeds. The processing time of soda solutions is 1 hour, the processing time of potash solutions is 2 hours.
Степень использовани углекислоты составл ет 95%.The degree of utilization of carbon dioxide is 95%.
Пример. В реактор емкостью 2 л помещают 1,5 л водного раствора углекислого кали с содержанием КгСОз 41,02%. Газообразную углекислоту непрерывно подают через барботалсную трубку нод вращающуюс мешалку . Расход углекислоты дозируют регул тором образом, чтобы давление в реакторе было посто нным и равным 5,0±0,2 ати. Температуру в реакторе 1 час поддерживают в пределах 50±0,5°С (с помощью термостата ), а затем еще 1 час плавно снижают до 20° С. Выход продзкта, счита на прореагировавший углекислый калий, 98,06%.Example. In a reactor with a capacity of 2 liters is placed 1.5 liters of an aqueous solution of potassium carbonate with a content of CgSO3 of 41.02%. The gaseous carbon dioxide is continuously fed through a rotating barotall tube and the rotating mixer. Carbon dioxide consumption is metered by the regulator so that the pressure in the reactor is constant and equal to 5.0 ± 0.2 atm. The temperature in the reactor is maintained for 1 hour within 50 ± 0.5 ° C (using a thermostat), and then gradually reduced for another 1 hour to 20 ° C. The output of the product, calculated for the reacted potassium carbonate, is 98.06%.
Предмет изобретени Subject invention
Способ получени бикарбонатов щелочных металлов при нагревании путем карбонизации чистой газообразной углекислотой концентрированных водных растворов средних углекислых солей щелочных металлов, отличающийс тем, что, с целью интенсификации процесса, карбонизацию провод т под давлением около 5 ати и двухстадийном температурном режиме , нерВа стади - около 50° С, втора - около 20-25°С.The method of producing alkali metal bicarbonates when heated by carbonization with pure carbon dioxide gas with pure carbonated alkali metal carbonate salts, characterized in that, in order to intensify the process, carbonization is carried out under a pressure of about 5 MPa and a two-stage temperature, the stainless stage is about 50 ° C, the second - about 20-25 ° C.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU182703A1 true SU182703A1 (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2511388C1 (en) * | 2012-08-23 | 2014-04-10 | Общество с ограниченной ответственностью "Ростхим" | Method of obtaining sodium hydrocarbonate, containing stable isotope 13c |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2511388C1 (en) * | 2012-08-23 | 2014-04-10 | Общество с ограниченной ответственностью "Ростхим" | Method of obtaining sodium hydrocarbonate, containing stable isotope 13c |
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