PL422437A1 - Method for obtaining potassium sulphate acid salt with low content of chlorides and food grade quality hydrochloric acid - Google Patents
Method for obtaining potassium sulphate acid salt with low content of chlorides and food grade quality hydrochloric acidInfo
- Publication number
- PL422437A1 PL422437A1 PL422437A PL42243717A PL422437A1 PL 422437 A1 PL422437 A1 PL 422437A1 PL 422437 A PL422437 A PL 422437A PL 42243717 A PL42243717 A PL 42243717A PL 422437 A1 PL422437 A1 PL 422437A1
- Authority
- PL
- Poland
- Prior art keywords
- acid
- hydrochloric acid
- potassium
- mass
- mixture
- Prior art date
Links
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title abstract 10
- 239000002253 acid Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 229910052939 potassium sulfate Inorganic materials 0.000 title abstract 2
- 239000001120 potassium sulphate Substances 0.000 title abstract 2
- 235000011151 potassium sulphates Nutrition 0.000 title abstract 2
- 150000001805 chlorine compounds Chemical class 0.000 title 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 title 1
- 150000003839 salts Chemical class 0.000 title 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 abstract 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 6
- CHKVPAROMQMJNQ-UHFFFAOYSA-M potassium bisulfate Chemical compound [K+].OS([O-])(=O)=O CHKVPAROMQMJNQ-UHFFFAOYSA-M 0.000 abstract 4
- 239000001103 potassium chloride Substances 0.000 abstract 4
- 235000011164 potassium chloride Nutrition 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 abstract 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000011541 reaction mixture Substances 0.000 abstract 2
- 235000011149 sulphuric acid Nutrition 0.000 abstract 2
- 239000007900 aqueous suspension Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 239000003337 fertilizer Substances 0.000 abstract 1
- 239000012467 final product Substances 0.000 abstract 1
- 229910000343 potassium bisulfate Inorganic materials 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- -1 salts potassium sulphate Chemical class 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
Landscapes
- Fertilizers (AREA)
Abstract
Przedmiotem niniejszego zgłoszenia jest sposób otrzymywania kwaśnej soli siarczanu potasu i kwasu solnego z chlorku potasu i kwasu siarkowego polegający na tym, że w pierwszym cyklu produkcyjnym do roztworu lub wodnej zawiesiny chlorku potasu, a w następnych cyklach do mieszaniny chlorku potasu przygotowanej na bazie ługów pochodzących z oddzielenia kwaśnej soli siarczanu potasu dozuje się mieszając kwas siarkowy zawierający 60 do 98% masowych H2SO4 zachowując stosunek molowy H2SO4 do KCl od 1:1 do 1:2, w odniesieniu do reakcji opisującej powstawanie KHSO4, a tak otrzymana mieszanina reakcyjna ma zawierać 45 do 65% masowych wody. Mieszaninę podgrzewa się w kolejnym etapie do temperatury 70 do 90°C i otrzymany klarowny roztwór zatęża się w celu odparowania wprowadzonej z surowcami wody, a powstałe opary chlorowodoru i pary wodnej kieruje się do układu absorpcji i otrzymuje kwas solny, przy czym do węzła absorpcji wprowadza się dodatkowo wodę w ilości pozwalającej na uzyskanie spożywczego kwasu solnego zawierającego minimum 28% masowych HCl. Otrzymany po odparowaniu roztwór schładza się do temperatury 30°C - 50°C a następnie oddziela wytrącone kryształy kwaśnej soli siarczanu potasu, a ługi macierzyste w całości zawraca się do kolejnego cyklu produkcyjnego w celu ponownego sporządzenia mieszaniny reakcyjnej, a otrzymane kryształy zawierające głównie kwaśne sole siarczanu potasu i pozostałe w nich kwaśne ługi macierzyste, stanowią produkt końcowy przeznaczony głównie do komponowania nawozów wieloskładnikowych.The subject of this application is a method for obtaining the acid potassium sulfate and hydrochloric acid from potassium chloride and sulfuric acid, consisting in the first production cycle for a solution or aqueous suspension of potassium chloride, and in subsequent cycles for a mixture of potassium chloride prepared on the basis of separation liquors acid potassium sulfate salt is dosed by mixing sulfuric acid containing 60 to 98% by mass H2SO4 maintaining the molar ratio H2SO4 to KCl from 1: 1 to 1: 2, with respect to the reaction describing the formation of KHSO4, and the reaction mixture thus obtained is to contain 45 to 65% mass water. The mixture is heated in the next stage to a temperature of 70 to 90 ° C and the obtained clear solution is concentrated to evaporate the water introduced with the raw materials, and the resulting hydrogen chloride and steam vapors are directed to the absorption system and receives hydrochloric acid, whereby introduced into the absorption node additionally water in an amount that allows obtaining hydrochloric acid food containing at least 28% by mass HCl. The solution obtained after evaporation is cooled to a temperature of 30 ° C - 50 ° C and then the precipitated crystals of the acid potassium sulfate salt are separated, and the mother liquors are completely recycled to the next production cycle to re-prepare the reaction mixture, and the obtained crystals containing mainly acid salts potassium sulphate and the remaining acid mother liquors are the final product intended mainly for composing compound fertilizers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL422437A PL422437A1 (en) | 2017-08-02 | 2017-08-02 | Method for obtaining potassium sulphate acid salt with low content of chlorides and food grade quality hydrochloric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL422437A PL422437A1 (en) | 2017-08-02 | 2017-08-02 | Method for obtaining potassium sulphate acid salt with low content of chlorides and food grade quality hydrochloric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL422437A1 true PL422437A1 (en) | 2019-02-11 |
Family
ID=65270361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL422437A PL422437A1 (en) | 2017-08-02 | 2017-08-02 | Method for obtaining potassium sulphate acid salt with low content of chlorides and food grade quality hydrochloric acid |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL422437A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3041139A (en) * | 1960-06-24 | 1962-06-26 | Du Pont | Method of preparing monopersulfate composition containing the triple salt khso4?k2so4?2khso5 |
| US4045543A (en) * | 1975-11-12 | 1977-08-30 | Pennzoil Company | Production of potassium sulfate and hydrogen chloride |
| US4588573A (en) * | 1983-09-27 | 1986-05-13 | Prodeco, Inc. | Method for the production of potassium sulfate using sulfuric acid and potassium chloride |
| WO2003074424A1 (en) * | 2002-03-07 | 2003-09-12 | Visweswara Rao Abburi | A cyclic process for continuously producing potassium sulphate and potassium sulphate produced thereby |
-
2017
- 2017-08-02 PL PL422437A patent/PL422437A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3041139A (en) * | 1960-06-24 | 1962-06-26 | Du Pont | Method of preparing monopersulfate composition containing the triple salt khso4?k2so4?2khso5 |
| US4045543A (en) * | 1975-11-12 | 1977-08-30 | Pennzoil Company | Production of potassium sulfate and hydrogen chloride |
| US4588573A (en) * | 1983-09-27 | 1986-05-13 | Prodeco, Inc. | Method for the production of potassium sulfate using sulfuric acid and potassium chloride |
| WO2003074424A1 (en) * | 2002-03-07 | 2003-09-12 | Visweswara Rao Abburi | A cyclic process for continuously producing potassium sulphate and potassium sulphate produced thereby |
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