SU1248955A1 - Method of removing calcium and magnesium from potassium chloride - Google Patents
Method of removing calcium and magnesium from potassium chloride Download PDFInfo
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- SU1248955A1 SU1248955A1 SU843771858A SU3771858A SU1248955A1 SU 1248955 A1 SU1248955 A1 SU 1248955A1 SU 843771858 A SU843771858 A SU 843771858A SU 3771858 A SU3771858 A SU 3771858A SU 1248955 A1 SU1248955 A1 SU 1248955A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- potassium chloride
- magnesium
- removing calcium
- stirring
- solution
- Prior art date
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Description
Изобретение относитс к химической технологии , в частности к технологии очистки раствора хлорида кали от кальци и магни , используемого дл электролиза при получении хлора и гидроксида кали .The invention relates to chemical technology, in particular to the technology of purifying a solution of potassium chloride from calcium and magnesium, used for electrolysis in the preparation of chlorine and potassium hydroxide.
Цель изобретени - повышение скорости отсто и упрощение процесса.The purpose of the invention is to increase the speed of settling and simplify the process.
Способ осуществл ют следующим образом .The method is carried out as follows.
Очищаемый раствор хлорида кали после введени растворов карбоната кали , гидроокиси кали и коагул нта подвергают перемешиванию в течение 20-40 мин и при температуре 60-80°С, отстаиванию и фильтрации .The purified solution of potassium chloride after the introduction of solutions of potassium carbonate, potassium hydroxide and coagulant is subjected to stirring for 20-40 minutes and at a temperature of 60-80 ° C, settling and filtration.
В раствор хлорида кали , содержащий, г/л: КС - 350, ионы кальци 0,18; ионы магни 0,06, добавл ют раствор карбоната и гидроокиси кали , а также коагул нта из расчета 3 мг/л ПАА и 50 мг/л высокомолекул рных алифатических аминов. ПосIn a solution of potassium chloride, containing, g / l: KS - 350, calcium ions 0.18; magnesium ions is 0.06; a solution of carbonate and potassium hydroxide is added, as well as coagulant at the rate of 3 mg / l PAA and 50 mg / l high aliphatic amines. Pos
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ВНИИПИ Заказ 4189/21 Тираж 450 Подписное Филиал ППП «Патент, г. Ужгород, ул. Проектна , 4VNIIPI Order 4189/21 Circulation 450 Subsidiary Subsidiary "Patent, Uzhgorod, st. Project, 4
ле перемешивани в течение 20-40 мин в диапазоне температур 60-80°С образуетс осадок, скорость осаждени которого и количество примесей после осаждени в зависимости от конкретных условий приведено в таблице.After stirring for 20-40 minutes in the temperature range of 60-80 ° C, a precipitate is formed, the sedimentation rate of which and the amount of impurities after deposition, depending on the specific conditions, are given in the table.
Снижение температуры менее 60°С и времени перемешивани менее 20 мин снижает скорость осаждени . Увеличение температуры свыше 80°С и времени перемешивани более 40 мин нецелесообразно, так как улучшение показателей не наблюдаетс . Использование данного способа позвол ет достигать высоких степеней очистки при однократном осветлении фильтрацией, чем достигаетс упрощение процесса.Lowering the temperature to less than 60 ° C and mixing time to less than 20 minutes reduces the deposition rate. An increase in temperature above 80 ° C and a stirring time of more than 40 minutes is impractical, since no improvement is observed. Using this method allows to achieve high degrees of purification with a single clarification by filtration, thus achieving a simplified process.
Как следует из данных таблицы, использование предлагаемого способа увеличивает скорость отсто в 1,5 раза и упрощает процесс путем исключени одной стадии фильтрации .As follows from the table, the use of the proposed method increases the speed of sludge by 1.5 times and simplifies the process by eliminating one filtration stage.
3,1 6,4 7,8 3,9 4,7 8,9 9,6 4,8 4,8 9,5 9.5 4,8 4,6 9,53.1 6.4 7.8 3.9 4.7 8.9 9.6 4.8 4.8 9.5 9.5 4.8 4.6 9.5
9,29.2
7,2 7,2 9,2 8,4 7,0 6,47.2 7.2 9.2 8.4 7.0 6.4
7,9 8,0 6,4 6,0 8,1 8,4 6,17.9 8.0 6.4 6.0 8.1 8.4 6.1
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843771858A SU1248955A1 (en) | 1984-07-26 | 1984-07-26 | Method of removing calcium and magnesium from potassium chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843771858A SU1248955A1 (en) | 1984-07-26 | 1984-07-26 | Method of removing calcium and magnesium from potassium chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1248955A1 true SU1248955A1 (en) | 1986-08-07 |
Family
ID=21131169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU843771858A SU1248955A1 (en) | 1984-07-26 | 1984-07-26 | Method of removing calcium and magnesium from potassium chloride |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1248955A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477599A (en) * | 2015-08-28 | 2017-03-08 | 熊知平 | The environment-protective process method of halogenated alkali metal salt fine purifying |
-
1984
- 1984-07-26 SU SU843771858A patent/SU1248955A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Фурман А. А. и Шрайбман С. С. Приготовление и очистка рассола. -Л.: Хими , 1966 , с. 162. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106477599A (en) * | 2015-08-28 | 2017-03-08 | 熊知平 | The environment-protective process method of halogenated alkali metal salt fine purifying |
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