BE497013A - - Google Patents
Info
- Publication number
- BE497013A BE497013A BE497013DA BE497013A BE 497013 A BE497013 A BE 497013A BE 497013D A BE497013D A BE 497013DA BE 497013 A BE497013 A BE 497013A
- Authority
- BE
- Belgium
- Prior art keywords
- potassium
- kilograms
- calcium
- fertilizer
- sulphate
- Prior art date
Links
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 17
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 10
- 239000011591 potassium Substances 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 9
- 239000003337 fertilizer Substances 0.000 claims description 9
- 229910052700 potassium Inorganic materials 0.000 claims description 9
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 8
- 239000011575 calcium Substances 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 239000001103 potassium chloride Substances 0.000 claims description 4
- 235000011164 potassium chloride Nutrition 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 3
- 235000011151 potassium sulphates Nutrition 0.000 claims description 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 12
- 235000011132 calcium sulphate Nutrition 0.000 description 6
- 229910021653 sulphate ion Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000001175 calcium sulphate Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- CHKVPAROMQMJNQ-UHFFFAOYSA-M potassium bisulfate Chemical compound [K+].OS([O-])(=O)=O CHKVPAROMQMJNQ-UHFFFAOYSA-M 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- -1 50 4 Ga Proteins 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 244000062730 Melissa officinalis Species 0.000 description 1
- 235000010654 Melissa officinalis Nutrition 0.000 description 1
- 101150060303 SOK2 gene Proteins 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000865 liniment Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910000343 potassium bisulfate Inorganic materials 0.000 description 1
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 1
- 239000001120 potassium sulphate Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
- C05D1/02—Manufacture from potassium chloride or sulfate or double or mixed salts thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Description
<Desc/Clms Page number 1>
PROCEDE DE FABRICATION D'UN ENCRAIS POTASSIQUE EXEMPT DE CHLORE.
L'invention a pour objet, un procédé de fabrication d'un engrais postassique exempt de chlore.
Suivant cette invention, on traite le sulfate acide de potassium par du sulfate 'de calcium en présence d'eau, de manière à former un sulfate double de potassium et de calcium et de l'acide sulfurique.
Le sulfate de calcium utilise dans cette fabrication, peut être plus ou moins hydrate.
La réaction est la suivante :
EMI1.1
2 SO 4 IM + 804 Ca + H 2 0 SO 4 K 2 SO 4 Ca., H 2 0 = 804H2 Le sel double SO4K2 SO4Ca H20, qui se dépose est très facile à filtrer. Après lavage et séchage, il constitue un engrais potassique contenant 28,7 % de K2O
L'acide sulfurique formé peut être utilisé de toute manière conve- nable. On peut par exemple, le mélanger à de l'acide sulfurique concentré, de façon à obtenir un acide sulfurique ayant une concentration de 50 à 60 % et le faire agir sur le chlorure de potassium de manière à obtenir une nouvel- le quantité de sulfate acide de potassium suivant la réaction connue :
EMI1.2
S04H2 + OIE ) 804KH + 01
On a découvert que cette réaction pouvait être combinée avec la précédente.
Si en effet, on introduit dans un mélangeur à la température or- dinaire, de l'acide sulfurique, du chlorure de potassium, du sulfate de cal- . cium et de l'eau, on obtient un produit solide constitué par le sulfate double visé ci-dessus et une solution concentrée d'acide chlorhydrique, la réaction pouvant s'écrire :
EMI1.3
50 4 H + 2 C1K + 50 4 G a + H0 --.-SOK2, 50 4 Ga, H20 + 2 GAIE
Le précipité solide et le liquide peuvent être séparés par tout moyen convenable, tel que décantation, égouttage, filtration.
<Desc/Clms Page number 2>
Le sulfate de potassium neutre, ainsi forme peut être utilisé avan- tageusement comme engrais. -Etant produit à froid, i-l'est obtenu dans des con- ditions particulièrement - économiques..
Exemple
1 On introduit simultanément dans un appareil mélangeur 1. 000 kilogrammes de sulfate acide de potassium et 634 Kilogrammes de gypse (sulfate de calcium bihydraté) et l'on agite en présence de 600 Kilogrammes d'eau, pen- dant une demi-heure environ.
On filtre et l'on recueille ainsi 1.200 kilogrammes d'un produit solide constitué par un sulfate double de potassium et de sulfate de calcium, qui après lavage et séchage, titre environ 28% de K2O et peut être utilisé comme-engrais. Le liquide est constitué par une solution d'acide sulfurique comprenant 360 kilogrammes d'acide pur.
' Il - on introduit dans un appareil mélangeur 360 kilogrammes d'aci- de sulfurique, 550 kilogrammes de chlorure de potassium, 634 kilogrammes de gypse et 900 kilogrammes d'eau. On sépare le liquide et le solide. Le premier est constitué par une solution d'acide chlorhydrique à 19 Baume, contenant
270 kilogrammes d' acide pur, alors que le solide donne après séchage un engrais formé d'un sulfate double de potassium et de calcium et titrant environ 28 % de K20.
REVENDICATIONS
1 Un procédé de fabrication d'un engrais potassique exempt de chlore, caractérisé en ce qu'on ajoute au sulfate acide de potassium, du sul- fate de calcium en présence d'eau, de manière à former un sulfate double de potassium et de calcium, utilisable comme engrais et de l'acide sulfurique.
<Desc / Clms Page number 1>
METHOD OF MANUFACTURING A POTASSIUM FERTILIZER FREE OF CHLORINE.
The subject of the invention is a process for manufacturing a chlorine-free post-classical fertilizer.
According to this invention, the acid potassium sulfate is treated with calcium sulfate in the presence of water, so as to form a double sulfate of potassium and calcium and sulfuric acid.
Calcium sulphate used in this manufacture can be more or less hydrated.
The reaction is as follows:
EMI1.1
2 SO 4 IM + 804 Ca + H 2 0 SO 4 K 2 SO 4 Ca., H 2 0 = 804H2 The SO4K2 SO4Ca H20 double salt, which settles, is very easy to filter. After washing and drying, it constitutes a potassium fertilizer containing 28.7% K2O
The sulfuric acid formed can be used in any convenient way. One can for example, mix it with concentrated sulfuric acid, so as to obtain a sulfuric acid having a concentration of 50 to 60% and make it act on the potassium chloride so as to obtain a new quantity of sulphate. potassium acid following the known reaction:
EMI1.2
S04H2 + OIE) 804KH + 01
It was found that this reaction could be combined with the previous one.
If in fact, sulfuric acid, potassium chloride and calcium sulphate are introduced into a mixer at ordinary temperature. cium and water, a solid product is obtained consisting of the double sulphate referred to above and a concentrated solution of hydrochloric acid, the reaction being able to be written:
EMI1.3
50 4 H + 2 C1K + 50 4 G a + H0 --.- SOK2, 50 4 Ga, H20 + 2 GAIE
The solid precipitate and the liquid can be separated by any suitable means, such as decantation, draining, filtration.
<Desc / Clms Page number 2>
Neutral potassium sulphate, thus formed, can be advantageously used as a fertilizer. -Being cold produced, it is obtained under particularly economical conditions.
Example
1 1,000 kilograms of potassium acid sulfate and 634 kilograms of gypsum (calcium sulfate bihydrate) are simultaneously introduced into a mixing apparatus and the mixture is stirred in the presence of 600 kilograms of water for about half an hour. .
One filters and thus collects 1,200 kilograms of a solid product consisting of a double sulfate of potassium and calcium sulfate, which after washing and drying, titrate about 28% K2O and can be used as a fertilizer. The liquid consists of a sulfuric acid solution comprising 360 kilograms of pure acid.
'360 kilograms of sulfuric acid, 550 kilograms of potassium chloride, 634 kilograms of gypsum and 900 kilograms of water are introduced into a mixing apparatus. The liquid and the solid are separated. The first consists of a hydrochloric acid solution at 19 Balm, containing
270 kilograms of pure acid, while the solid gives, after drying, a fertilizer formed from a double sulphate of potassium and calcium and containing about 28% K20.
CLAIMS
1 A process for the manufacture of a chlorine-free potassium fertilizer, characterized in that to the acid sulphate of potassium, calcium sulphate in the presence of water is added so as to form a double sulphate of potassium and calcium, usable as a fertilizer and sulfuric acid.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE497013A true BE497013A (en) |
Family
ID=140086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE497013D BE497013A (en) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE497013A (en) |
-
0
- BE BE497013D patent/BE497013A/fr unknown
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