SU1540858A1 - Method of regeneration of carbonyl cationite from calcium to sodium form - Google Patents
Method of regeneration of carbonyl cationite from calcium to sodium form Download PDFInfo
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- SU1540858A1 SU1540858A1 SU884365937A SU4365937A SU1540858A1 SU 1540858 A1 SU1540858 A1 SU 1540858A1 SU 884365937 A SU884365937 A SU 884365937A SU 4365937 A SU4365937 A SU 4365937A SU 1540858 A1 SU1540858 A1 SU 1540858A1
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- sodium
- calcium
- solution
- regeneration
- sodium carbonate
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Abstract
Изобретение относитс к области ионного обмена и позвол ет снизить расход карбоната натри при регенерации катионита. Сущность изобретени заключаетс в том, что катионит КБ=4 в кальций-натриевой форме обрабатывают к колонне водно-этанольным раствором сульфата натри с концентрацией 2Н и содержанием этанола 4 об.%. Вытекающий раствор собирают в емкость, в которой выпадает осадок сульфата кальци . После отделени осадка в раствор добавл ют карбонат натри и после фильтрации используют повторно дл регенерации. 1 табл.The invention relates to the field of ion exchange and reduces the consumption of sodium carbonate during the regeneration of the cation exchanger. The essence of the invention is that the cation exchanger KB = 4 in the calcium-sodium form is treated to the column with an aqueous-ethanolic solution of sodium sulfate with a concentration of 2H and an ethanol content of 4% by volume. The effluent is collected in a container in which a calcium sulphate precipitate forms. After separating the precipitate, sodium carbonate is added to the solution and, after filtration, is reused for regeneration. 1 tab.
Description
Изобретение относитс к ионно-об- менной технологии и может найти применение в процессах ум гчени воды, мембранной технологии производства щелочи, ионно-обменных процессах, св занных с выделением кальци из минерализованных вод и др.The invention relates to ion-exchange technology and can be used in water softening processes, membrane alkali production technology, ion-exchange processes associated with the release of calcium from saline water, etc.
Целью способа вл етс снижение расхода карбоната натри на процесс регенерации.The purpose of the method is to reduce the consumption of sodium carbonate in the regeneration process.
Пример. Порцию катионита КБ-4 в смешанной кальций-натриевой форме объемом 51 мл и общей емкостью 128 мг-экв с долей кальци помещают в колонку диаметром 1,1 см. Обработку провод т водноэтанольным раствором сульфата натри с концентрацией этанола 4 об.%, сульфата натри 2 н. Растйор пропускают со скоростью 50 мл/мин Вытекающий раствор собирают в мерный стакан, в котором выпадает осадок сульфата кальци . ОбъемExample. A portion of the CB-4 cation exchanger in a mixed calcium-sodium form with a volume of 51 ml and a total capacity of 128 mEq with a proportion of calcium is placed in a column with a diameter of 1.1 cm. The treatment is carried out with an aqueous solution of sodium sulfate with a concentration of ethanol of 4% by volume sodium sulfate 2 n. The solution is passed at a rate of 50 ml / min. The resulting solution is collected in a beaker, in which a precipitate of calcium sulfate precipitates. Volume
пропускаемого раствора 1500 мл. Степень регенерации ионита 96%. После- выпадени осадка раствор фильтруют, анализируют концентрацию кальци и добавл ют насыщенный раствор карбоната натри в эквивалентном количестве. В стакане выпадает осадок карбоната кальци . Его отфильтровывают, и раствор используют дл следующих регенераций .skipped solution 1500 ml. The degree of regeneration of the ion exchanger is 96%. After precipitation, the solution is filtered, the calcium concentration is analyzed and a saturated solution of sodium carbonate is added in an equivalent amount. Calcium carbonate precipitates in the glass. It is filtered and the solution is used for the following regenerations.
Результаты остальных примеров этой серии с измен ющимис концентраци ми этанола и сульфата натри приведены в таблице.The results of the remaining examples of this series with varying concentrations of ethanol and sodium sulfate are shown in the table.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884365937A SU1540858A1 (en) | 1988-01-20 | 1988-01-20 | Method of regeneration of carbonyl cationite from calcium to sodium form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884365937A SU1540858A1 (en) | 1988-01-20 | 1988-01-20 | Method of regeneration of carbonyl cationite from calcium to sodium form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1540858A1 true SU1540858A1 (en) | 1990-02-07 |
Family
ID=21350648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884365937A SU1540858A1 (en) | 1988-01-20 | 1988-01-20 | Method of regeneration of carbonyl cationite from calcium to sodium form |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1540858A1 (en) |
-
1988
- 1988-01-20 SU SU884365937A patent/SU1540858A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР № 700161, кл. В 01 J 49/00, 1979. Патент US № 3528912, кл. В 01 J 39/00, 1970. * |
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