CS254666B1 - Process for preparing potassium chloride quality of pure chemical compound - Google Patents
Process for preparing potassium chloride quality of pure chemical compound Download PDFInfo
- Publication number
- CS254666B1 CS254666B1 CS851412A CS141285A CS254666B1 CS 254666 B1 CS254666 B1 CS 254666B1 CS 851412 A CS851412 A CS 851412A CS 141285 A CS141285 A CS 141285A CS 254666 B1 CS254666 B1 CS 254666B1
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- CS
- Czechoslovakia
- Prior art keywords
- solution
- pure chemical
- chloride
- potassium chloride
- potassium
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- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 4
- 239000001103 potassium chloride Substances 0.000 title claims description 8
- 235000011164 potassium chloride Nutrition 0.000 title claims description 8
- 150000001875 compounds Chemical class 0.000 title 1
- 239000000243 solution Substances 0.000 claims abstract description 12
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 8
- 239000007864 aqueous solution Substances 0.000 claims abstract description 5
- 238000001953 recrystallisation Methods 0.000 claims abstract description 4
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 claims description 6
- 229910001626 barium chloride Inorganic materials 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract description 6
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 2
- 238000002425 crystallisation Methods 0.000 abstract description 2
- 230000008025 crystallization Effects 0.000 abstract description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 abstract 1
- 229910052788 barium Inorganic materials 0.000 abstract 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 229910001425 magnesium ion Inorganic materials 0.000 abstract 1
- 150000003109 potassium Chemical class 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 3
- 239000004480 active ingredient Substances 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- -1 sulphate ions Chemical class 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Riešenie sa týká sposobu výroby chloridu draselného ako čisté] chemikálie z technickej draselné] soli. Podstatou riešenia Je, že do vodného roztoku technickej draselné] soli o koncentrácii do 50 % sa přidá chlorid bárnatý do 1,5 % v přepočte na stechiometrický obsah síranového iónu. Vyhriaty roztok sa přefiltruje, čím sa odstráni suspenzia síranu bárnatého s nerozpustnými látkami. Následnou kryštalizáciou, resp. rekryštalizáciou, sa odstránia ióny horčíka, připadne iných příměsí. Produkt vyrobený týmto postupom odpovedá kvalitou analytickej chemikálii.The solution relates to a process for the production of chloride potassium as a pure chemical from technical potassium] salts. The essence of the solution is that into an aqueous solution of a technical potassium salt with a concentration of up to 50%, chloride is added barium to 1.5% converted to stoichiometric sulfate ion content. Heated solution is filtered to remove the suspension barium sulfate with insoluble substances. Subsequent crystallization, respectively. recrystallization the magnesium ions are removed; other ingredients. The product produced by this procedure is consistent with analytical quality chemical.
Description
selného ako čistej chemikálie z technickej draselnej suroviny. Vyrobený produkt musí dosahovat obsah aktívnej zložky minimálněas pure chemical from technical potassium raw material. The product produced must at least have an active ingredient content
99,5 % a nesmie překračovat maximálně hodnoty příměsí přípustné pre analytická chemikáliu, připadne požiadavkám platného liekopisu (napr. Československý liekopis, vydání třetí, svazek 1, str. 255, Praha 1970).99.5% and must not exceed the maximum admixture values permitted for the analytical chemical, if applicable, according to the requirements of a valid pharmacopoeia (eg Czechoslovak Pharmacopoeia, edition third, volume 1, p. 255, Prague 1970).
Podlá doterajších známých postupov sa chlorid draselný ako čistá chemikália vyrába neutralizačným postupom, kde stechiometricky zreaguje kyselina chlorovodíková s vodným roztokom hydroxidu draselného. Pri tomto postupe sa kladie doraz na čisté suroviny, obzvlášť kyselinu chlorovodíkovú (limita obsahu železa). Nevýhodou uvedeného postupu sú vysoké náklady a značné korozně opotrebovanie reaktora.According to the prior art, potassium chloride as a pure chemical is produced by a neutralization process where the hydrochloric acid is reacted stoichiometrically with an aqueous potassium hydroxide solution. In this process, a stop is placed on the pure raw materials, in particular hydrochloric acid (iron content limit). The disadvantage of this process is the high cost and considerable corrosion of the reactor.
Uvedený sposob výroby vuužíva ako vstupná surovinu technická draselná sol' získaná ťažbou. Obsah aktívnej zložky je minimálně 98 %. Surovina obsahuje vysoké množstvo síranových iónov (do 0,5 %), ktoré sa odstraňujú prídavkom chloridu bárnatého, čím klesne obsah síranov (až do 0,003 % j. Vzniklá nerozpustná zrazenina síranu bárnatého sa odfiltruje spolu s nerozpustnými látkami. Přítomnost nerozpustných látok na báze křemeliny v technickej draselnej soli (do 0,5 %) je významná pre možnost absorpcie síranu bárnatého, a tým jeho kvantitativnému odstráneniu. Obsah horčíka v technickej draselnej soli (do 0,2 %) sa odstraňuje kryštalizáciou, resp. rekryštalizáciou produktu (do 0,0005 %). Uvedená surovina neobsahuje ťažké kovy a železo, čo významné kladné ovplyvní kvalitu výsledného produktu.Said production process uses the technical potassium salt obtained as a feedstock by extraction. The active ingredient content is at least 98%. The raw material contains a high amount of sulphate ions (up to 0.5%) which are removed by the addition of barium chloride, thereby decreasing the sulphate content (up to 0.003%). The insoluble barium sulphate formed is filtered off together with insoluble materials. in the technical potassium salt (up to 0.5%) is important for the possibility of absorption of barium sulphate and thus its quantitative removal The magnesium content in the technical potassium salt (up to 0.2%) is removed by crystallization or recrystallization of the product (up to 0, Said raw material does not contain heavy metals and iron, which will have a significant positive effect on the quality of the resulting product.
Podstata vynálezu spočívá v tom, že po príprave vodného roztoku technickej draselnej soli pri teplote do 100 °C přidá sa chlorid bárnatý, roztok sa přefiltruje a vykoná sa pryštalizácia, připadne následná rekryštalizácia produktu. Koncentrácia vodného roztoku technickej draselnej solí sa používá až do koncentrácie 50 %, ďalej pak chlorid bárnatý sa přidává do vyhriatého vodného roztoku technickej draselnej soli až do koncentrácie 1,5 °/o.According to the invention, after the preparation of an aqueous solution of the technical potassium salt at a temperature of up to 100 ° C, barium chloride is added, the solution is filtered and crystallized, followed by recrystallization of the product. The concentration of the aqueous technical potassium salt solution is used up to a concentration of 50%, and then barium chloride is added to the heated aqueous technical potassium salt solution up to a concentration of 1.5%.
Výhodou uvedeného postupu je i to, že sa podstatné zlepší manipulácia so surovinou, zamedzí sa znečisťovaniu životného prostredia a podstatné sa predlži životnost zariadenia.The advantage of this process is that the handling of the raw material is substantially improved, the pollution of the environment is avoided and the service life of the equipment is substantially extended.
Příklad 1Example 1
Do 1 000 litrového smaltovaného reaktora sa nadávkuje 600 litrov destilovanej vody a za miešania sa přidá 300 kg technickej draselnej soli a 2 kg technického chloridu bárnatého. Roztok sa vyhřeje na teplotu 95 — 100 °C a odfiltruje sa do druhého reaktora cez filter, na ktorom je vrstva buničitej vaty a plátno. Takto přefiltrovaný roztok sa zahušťuje oddestilováním 250 — 300 litrov vody. Po oddestitovaní vody sa roztok schladí na 20 CC, kedy sa vytvoří kryštál chloridu draselného. Kryštál od roztoku sa separuje napr. na odstredivke a vysuší. Získá sa 220 kllogramov čistej chemikálie chloridu draselného, ktorý odpovedá CSN 68 4764 pre kvalitu čistý.600 liters of distilled water are metered into a 1000 liter enamelled reactor and 300 kg of technical potassium salt and 2 kg of technical barium chloride are added with stirring. The solution is heated to 95-100 ° C and filtered into a second reactor through a filter having a cellulose wadding layer and a canvas. The filtered solution is concentrated by distilling 250-300 liters of water. After distilling off the water, the solution is cooled to 20 ° C, forming a potassium chloride crystal. The crystal from the solution is separated e.g. on a centrifuge and dried. 220 cllograms of pure potassium chloride chemical are obtained which correspond to CSN 68 4764 for pure quality.
Příklad 2Example 2
Do 1 000 litrového smaltovaného reaktora sa nadávkuje 500 litrov destilovanej vody a za stálého miešania sa přidá 250 kg kryštálu chloridu draselného vyrobeného* podfa příkladu 1 bez sušenia. Oddestiluje sa 300 1 vody a roztok sa schladí na teplotu 20 °C. Vytvoří sa kryštál, ktorý sa separuje od roztoku a vysuší. Získá sa 200 kg chloridu draselného, ktorý odpovedá kvalitě pre analýzu podfa ČSN 68 4764.To a 1000 liter enamelled reactor was charged 500 liters of distilled water and 250 kg of the potassium chloride crystal produced according to Example 1 without drying was added with stirring. 300 L of water was distilled off and the solution was cooled to 20 ° C. A crystal is formed which is separated from the solution and dried. 200 kg of potassium chloride are obtained, which corresponds to the quality for analysis according to ČSN 68 4764.
Příklad 3Example 3
Separovaný roztok podfa príkladov 1 a 2 je možné opat zhromáždiť do 1 OOOlitrového reaktora a za miešania oddestilovať '500 — 550 litrov vody z 8001itrovej násady.. Po ochladení na 20 °C, separovaní získaného kryštálu a vysušení sa vyrobí produkt chloridu draselného zodpovedajúceho kvalitě čistý podfa ČSN 68 4764.The separated solution of Examples 1 and 2 can be collected in a 10,000 liter reactor and distilled 500-550 liters of water from an 800 liter batch with stirring. After cooling to 20 ° C, separating the obtained crystal and drying, a potassium chloride product of corresponding quality is produced pure according to ČSN 68 4764.
PREDMETSUBJECT
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS851412A CS254666B1 (en) | 1985-02-28 | 1985-02-28 | Process for preparing potassium chloride quality of pure chemical compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS851412A CS254666B1 (en) | 1985-02-28 | 1985-02-28 | Process for preparing potassium chloride quality of pure chemical compound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS141285A1 CS141285A1 (en) | 1987-06-11 |
| CS254666B1 true CS254666B1 (en) | 1988-01-15 |
Family
ID=5348424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS851412A CS254666B1 (en) | 1985-02-28 | 1985-02-28 | Process for preparing potassium chloride quality of pure chemical compound |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS254666B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2116965C1 (en) * | 1991-07-03 | 1998-08-10 | Пермский государственный технический университет | Method of preparing potassium chloride of reactive purity |
-
1985
- 1985-02-28 CS CS851412A patent/CS254666B1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2116965C1 (en) * | 1991-07-03 | 1998-08-10 | Пермский государственный технический университет | Method of preparing potassium chloride of reactive purity |
Also Published As
| Publication number | Publication date |
|---|---|
| CS141285A1 (en) | 1987-06-11 |
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