SU1691304A1 - Method for obtaining potassium sulfate - Google Patents
Method for obtaining potassium sulfate Download PDFInfo
- Publication number
- SU1691304A1 SU1691304A1 SU894658488A SU4658488A SU1691304A1 SU 1691304 A1 SU1691304 A1 SU 1691304A1 SU 894658488 A SU894658488 A SU 894658488A SU 4658488 A SU4658488 A SU 4658488A SU 1691304 A1 SU1691304 A1 SU 1691304A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- potassium sulfate
- potassium
- reaction mass
- production
- sulfuric acid
- Prior art date
Links
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 title claims abstract description 8
- 229910052939 potassium sulfate Inorganic materials 0.000 title claims abstract description 8
- 235000011151 potassium sulphates Nutrition 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title claims abstract description 7
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims abstract description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000001103 potassium chloride Substances 0.000 claims abstract description 3
- 235000011164 potassium chloride Nutrition 0.000 claims abstract description 3
- 239000012736 aqueous medium Substances 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims 2
- 230000003993 interaction Effects 0.000 claims 1
- 239000011259 mixed solution Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000003337 fertilizer Substances 0.000 abstract description 2
- 239000001120 potassium sulphate Substances 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract 1
- 229940072033 potash Drugs 0.000 abstract 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract 1
- 235000015320 potassium carbonate Nutrition 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000007669 thermal treatment Methods 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- UBBSASFKEJHWOE-UHFFFAOYSA-M potassium hydrogen sulfate sulfuric acid Chemical compound [K+].OS(O)(=O)=O.OS([O-])(=O)=O UBBSASFKEJHWOE-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Fertilizers (AREA)
Abstract
Изобретение относитс к технологии получени сульфата кали и может быть использовано в производстве беолорных калийных удобрений Сульфат кали получают путем взаимодействи хлорида кали с серной кислотой в водной среде при 120°С и отгонке образующейс азеотропной смеси вода - хлористый водород Затем оставшуюс реакционную массу подвергают термической обработке при 2GO-320°C в результате которой получают продует с содержанием основного вещества 93 98,5% и хлор-иона не выше 2% Способ позвол ет значительно сократить прьдопжительность процесса 1 табл.The invention relates to the technology of potassium sulphate production and can be used in the production of belorium potash fertilizers. Potassium sulphate is obtained by reacting potassium chloride with sulfuric acid in an aqueous medium at 120 ° C and distilling the azeotropic water-hydrogen chloride mixture formed. Then the remaining reaction mass is subjected to thermal treatment at 2GO-320 ° C as a result of which they get blown with the content of the main substance 93 98.5% and chlorine ion not higher than 2%. The method allows to significantly reduce the charge Table 1 NOSTA process.
Description
(/(/
СWITH
Изобретение относитс к технологии получени сульфата кали и может быть использовано в производстве бесхлорных калийных удобренийThe invention relates to the technology of potassium sulfate and can be used in the production of chlorine-free potassium fertilizers.
Целью изобретени вл етс сокращение продолжительности процесса при сохранении качества целевого продуктаThe aim of the invention is to reduce the duration of the process while maintaining the quality of the target product.
П р и м е р 1. 100 мае ч хлорида кали смешивают в реакторе с 219,3 мае.ч. 30%- ной серной кислоты и при температуре 120°С отгон ют парогазовую смесь вода - хлористый водород с последующей ее конденсацией в виде 21%-ного раствора сол ной кислоты. При отгонке в реактор при непрерывном перемешивании добавл ют еще 100 мае.ч воды После отгонки 207,3 мас.ч. азеотропной смеси оставшуюс массу в количестве 212 в ч подвергают термической обработке, например, в аппарате кип щего сло при 300°С в течение 60 мин. Полученный продукт в количестве 117,4PRI me R 1. 100 may h potassium chloride is mixed in the reactor with 219.3 wt. H. At a temperature of 120 ° C, water – hydrogen chloride vapor – gas mixture is distilled off with 30% sulfuric acid, followed by condensation in the form of a 21% hydrochloric acid solution. In the course of distillation, another 100 mash of water was added to the reactor with continuous stirring. After distillation, 207.3 wt.h. the azeotropic mixture, the remaining mass in an amount of 212 h, is subjected to heat treatment, for example, in a fluidized bed apparatus at 300 ° C for 60 minutes. The resulting product in the amount of 117.4
мае ч представл ет собой белый порошок содержащий KzSCM 98,55%, H2S04 0 60%, CI 0,41%May h is a white powder containing KzSCM 98.55%, H2S04 0 60%, CI 0.41%
Результаты экспериментов проведенных при других параметрах стгдми выделени сульфата кали , представлены в таблице.The results of experiments carried out with other parameters stgdmi release of potassium sulfate are presented in the table.
Как следует из представленных данных, осуществление способа предлагаемым образом позвол ет сократить продолжительность стадии выделени сульфата кали до 60-80 мин а отличие от прототипа, где эта стади протекает 6-19 ч Кроме того устран етс необходимость фильтрации кислых суспензий и, следовательно, применение коррозионностойкой аппаратурыAs follows from the presented data, the implementation of the method in the proposed manner allows reducing the duration of the potassium sulphate sulphate extraction stage to 60-80 minutes and the difference from the prototype, where this stage lasts 6-19 hours. Moreover, the need to filter acidic suspensions and, therefore, the use of corrosion-resistant instrumentation
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894658488A SU1691304A1 (en) | 1989-03-03 | 1989-03-03 | Method for obtaining potassium sulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU894658488A SU1691304A1 (en) | 1989-03-03 | 1989-03-03 | Method for obtaining potassium sulfate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1691304A1 true SU1691304A1 (en) | 1991-11-15 |
Family
ID=21432336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU894658488A SU1691304A1 (en) | 1989-03-03 | 1989-03-03 | Method for obtaining potassium sulfate |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1691304A1 (en) |
-
1989
- 1989-03-03 SU SU894658488A patent/SU1691304A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Патент US № 4045543, кл.С 01 В 7/08, опублик 1977 * |
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