DE219932C - - Google Patents
Info
- Publication number
- DE219932C DE219932C DENDAT219932D DE219932DA DE219932C DE 219932 C DE219932 C DE 219932C DE NDAT219932 D DENDAT219932 D DE NDAT219932D DE 219932D A DE219932D A DE 219932DA DE 219932 C DE219932 C DE 219932C
- Authority
- DE
- Germany
- Prior art keywords
- nitrogen
- cyanamide
- calcium cyanamide
- salts
- products
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- XZMCDFZZKTWFGF-UHFFFAOYSA-N carbodiimide Chemical class NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 150000008043 acidic salts Chemical class 0.000 claims description 3
- 239000003337 fertilizer Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 2
- 235000015450 Tilia cordata Nutrition 0.000 claims description 2
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 claims description 2
- 239000004571 lime Substances 0.000 claims description 2
- 150000001247 metal acetylides Chemical class 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical class [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 2
- 238000010410 dusting Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000002426 superphosphate Substances 0.000 description 2
- PRKQVKDSMLBJBJ-UHFFFAOYSA-N Ammonium carbonate Chemical compound N.N.OC(O)=O PRKQVKDSMLBJBJ-UHFFFAOYSA-N 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N Ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-M bisulphate group Chemical group S([O-])(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001912 cyanamides Chemical class 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- -1 sulfuric acid Calcium cyanamide Chemical compound 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C7/00—Fertilisers containing calcium or other cyanamides
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
— M 219932 KLASSE 16. GRUPPE- M 219932 CLASS 16TH GROUP
STICKSTOFFWERKE, G.m.b.H. in SPANDAU.STICKSTOFFWERKE, G.m.b.H. in SPANDAU.
Die Verwendung der durch Einwirkung von Stickstoff auf Karbide der Erdalkalimetalle oder deren Karbidbildungsgemische erhaltenen stickstoffhaltigen Produkte, z.B. Kalkstickstoff ο. dgl., als Düngemittel zeigte mannigfache Unbequemlichkeiten. Die erhaltenen Produkte stäuben leicht, wodurch bei ihrer Anwendung Belästigungen der Arbeiter und Verluste durch Verstäubung oder Verstreuung eintreten können; sie sind außerdem hygroskopisch, so daß das Lagern und der Transport mit Schwierigkeiten verbunden sind. Sodann enthalten diese Düngemittel den . Stickstoff fast ausschließlich in Form der Salze des Cyanamides, das erst im Boden in Ammoniak bzw. Salpetersäure umgewandelt werden muß, um als Pflanzennährstoff zu dienen.. Dieser Umstand erschwert die Verwendung des Kalkstickstoffs in allen solchen Fällen, wo es sich darum handelt, der Pflanze fertig gebildeten und leicht aufnehmbaren Stickstoff darzubieten. Die Gegenwart von freiein . Ätzkalk (Ca 0) im Kalkstickstoff ο. dgl. ver-• . bietet es im übrigen auch, eine Mischung mit Superphosphaten vorzunehmen, falls auf die Erhaltung der Wasserlöslichen Phosphorsäure im Superphosphat Wert gelegt wird, da der freie Ätzkalk des Kalkstickstoffs eine Umwandlung der wasserlöslichen in zitratlösliche Phosphorsäure, unter Umständen sogar in bodenunlösliche Phosphorsäure verursachen kann.The use of the nitrogen-containing products obtained by the action of nitrogen on carbides of the alkaline earth metals or their carbide formation mixtures, eg calcium cyanamide ο. Like., as a fertilizer, exhibited various inconveniences. The products obtained are easily dusted, which can cause nuisance to workers and losses due to dusting or scattering when they are used; they are also hygroscopic, so that storage and transportation are difficult. Then these fertilizers contain the. Nitrogen almost exclusively in the form of the salts of cyanamide, which first has to be converted into ammonia or nitric acid in the soil in order to serve as a plant nutrient. This circumstance makes it difficult to use calcium cyanamide in all such cases, where it is the case, the plant present ready-formed and easily absorbable nitrogen. The presence of Freiein. Caustic lime (Ca 0) in calcium cyanamide ο. like. ver •. It also offers a mixture with superphosphates, if the maintenance of the water-soluble phosphoric acid in the superphosphate is important, since the free quick lime of the calcium cyanamide can cause a conversion of the water-soluble into citrate-soluble phosphoric acid, under certain circumstances even into soil-insoluble phosphoric acid.
Alle diese Übelstände werden vermieden, wenn man diese stickstoffhaltigen Produkte, wie Kalkstickstoff o. dgl., mit sauren Salzen der Alkalien oder alkalischen Erden, z. B. Bisulf aten, Rückständen der Salpetersäurefabrikation, Polysulfaten, Bikarbonaten o. dgl., trocken oder in Lösung vermischt. Hierbei wird der freie Kalk des Kalkstickstoffs in Sulfat, Karbonat o. dgl. umgewandelt und dadurch ein nicht stäubendes, aber auch nicht hygroskopisches Produkt erhalten, ferner wild ein Teil des Cyanamidsalzes in. Ammoniak umgewandelt und somit Stickstoff in Form von Ammonsulfat, Ammonkarbonat o. dgl. erhalten, also in einer Form, die unter den meisten Vegetationsverhältnissen von der Pflanze leicht assimiliert werden kann. Da bei Vermischung solcher sauren Salze mit Kalkstickstoff eine Überhitzung nicht stattfindet, vielmehr nur eine langsame Umsetzung, so tritt ein Verlust an Stickstoff hierbei nicht ein, wie dies bei der Einwirkung von Schwefelsäure auf Kalkstickstoff der Fall ist. .All of these evils are avoided by using these nitrogenous products, such as calcium cyanamide o. The like., With acidic salts of alkalis or alkaline earths, z. B. Bisulfates, residues from nitric acid production, polysulfates, bicarbonates, etc., dry or mixed in solution. Here the free lime of the calcium cyanamide is in Sulphate, carbonate or the like converted and thereby a non-dusting, but also not hygroscopic product obtained, furthermore part of the cyanamide salt in ammonia converted and thus nitrogen in the form of ammonium sulfate, ammonium carbonate or the like obtained, so in a form that is easy for the plant to use under most vegetation conditions can be assimilated. Since when such acidic salts are mixed with calcium cyanamide a Overheating does not take place, rather only a slow implementation, so a loss occurs of nitrogen here, as is the case with the action of sulfuric acid Calcium cyanamide is the case. .
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE219932C true DE219932C (en) |
Family
ID=481020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT219932D Active DE219932C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE219932C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0022536A1 (en) * | 1979-07-12 | 1981-01-21 | SKW Trostberg Aktiengesellschaft | Non-agglomerating granulated mineral fertilizer |
-
0
- DE DENDAT219932D patent/DE219932C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0022536A1 (en) * | 1979-07-12 | 1981-01-21 | SKW Trostberg Aktiengesellschaft | Non-agglomerating granulated mineral fertilizer |
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