BE552164A - - Google Patents
Info
- Publication number
- BE552164A BE552164A BE552164DA BE552164A BE 552164 A BE552164 A BE 552164A BE 552164D A BE552164D A BE 552164DA BE 552164 A BE552164 A BE 552164A
- Authority
- BE
- Belgium
- Prior art keywords
- fertilizer
- nitrogen
- urea
- fertilizer according
- source
- Prior art date
Links
- 239000003337 fertilizer Substances 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- 239000004202 carbamide Substances 0.000 claims description 4
- XZMCDFZZKTWFGF-UHFFFAOYSA-N carbodiimide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 claims description 2
- 150000001768 cations Chemical class 0.000 claims 1
- 239000002893 slag Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 3
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N Calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N Sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- QVLTXCYWHPZMCA-UHFFFAOYSA-N PO4-PO4 Chemical compound OP(O)(O)=O.OP(O)(O)=O QVLTXCYWHPZMCA-UHFFFAOYSA-N 0.000 description 1
- -1 aluminum-calcium Chemical compound 0.000 description 1
- ZMPZURBYCNDNBN-UHFFFAOYSA-K aluminum;calcium;phosphate Chemical compound [Al+3].[Ca+2].[O-]P([O-])([O-])=O ZMPZURBYCNDNBN-UHFFFAOYSA-K 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052803 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B5/00—Thomas phosphate; Other slag phosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Description
<Desc/Clms Page number 1>
On sait qu'il est relativement difficile de réa- liser certains engrais fortement basiques dans lesquels 1* azote est fourni par des sels ammoniacaux. Si, en effet, certains composants de ces engrais sont présents sous une forme basique libre, 1' ammoniaque est déplace de ses sels comme l'indiquent les lois élémentaires de la chimi'e et l'on. constate des pertes d'azote extrêmement importantes.
La présente invention a pour objet un engrais qui ne présente aucun des inconvénients qui viennent d'être signalés.
<Desc/Clms Page number 2>
Dans un engrais conforme à l'invention, l'azote est essentiellement présent, au moins pour la plus grosse part, sous forme uréique ootenue à partir de l'urée et l'acide phosphorique, pour la plus grosse part', sous forme d'un mélange en proportions variables de scories de déphos- phoration (scories Thomas) et de phosphate alumino-calcique, plus connu sous -le nom commercial de phospal.
Selon un mode de réalisation particulier de l'inven- tion, 'une partie de l'azote peut être en provenance d'une autre source, non ammoniacale,telle, par exemple, que :. cyanamide calcique, nitrate de sodium, nitrate de calcium etc....
De même, une certaine proportion de l'acide phos- phorique pourrait provenir d'une source autre que celle men- tionnée ci-dessus.
A ces éléments de base, dont la présence consti- tue l'originalité de l'invention, l'on peut encore ajouter des constituants divers bien connus qui sont eux-mêmes soit des produits fertilisants, soit des produits destinés à amé- liorer les'propriétés de cet engrais dans divers domaines.
C'est ainsi que l'engrais conforme à l'invention peut com- porter également de la potasse et diverses autres additions, notamment des additions ayant pour résultat de lui apporter de? éléments connus sous le nom d'oligo-éléments tels que fer, magnésie, zinc, manganèse, cobalt, etc...
Dans un engrais tel que défini ci-dessus, les 'proportions de phosphate alumino-calcique et-.de scories peu- vent être absolument quelconques suivant la destination par- ticulière de l'engrais et l'effet recherché, et le pourcentage de scories peut ainsi varier de 0,5 à 99,5 en poids du mé- lange.et, de même, le poids de phosphate alumino-calcique peut varier de 99.5 à 0,5
<Desc/Clms Page number 3>
A l'aide des éléments qui viennent d'être indiqués on peut réaliser des engrais de différents types et d'équi- libre très varié tels que des entrais 10-10-20, 8-8-15, 15,5,10 etc.
. L'engrais qui vient d'être décrit peut se présenter sous des formes variées et notamment être préparé sous forme pulvérulente aussi bien que sous forme granulée. Dans ce dernier cas, la granulation peut se faire par des pro- cédés habituels.
Le mode d'exécution de l'invention qui vient d'être .décrit n'est, bien entendu, qu'un exemple non limitatif, et l'on peut lui apporter toutes modifications de détail sans franchir pour cela le cadre de l'invention.
REVENDICATIONS -
1 Engrais perfectionné essentiellement caractérisé en ce que l'azote est essentiellement présent, au moins pour la plus grosse part, sous forme uréique obtenue à partir de l'urée et l'acide phosphorique, pour la plus grosse part, sous forme d'un mélange en proportions va- riables de scories de déphosphoration (scories Thomas) et de phosphate alumino-calcique ou phospal.
<Desc / Clms Page number 1>
It is known that it is relatively difficult to make certain strongly basic fertilizers in which nitrogen is supplied by ammoniacal salts. If indeed some components of these fertilizers are present in free basic form, ammonia is displaced from its salts as indicated by the elementary laws of chemistry. notes extremely significant nitrogen losses.
The present invention relates to a fertilizer which does not exhibit any of the drawbacks which have just been pointed out.
<Desc / Clms Page number 2>
In a fertilizer in accordance with the invention, nitrogen is essentially present, at least for the most part, in urea form ootenue from urea and phosphoric acid, for the most part, in the form of a mixture in varying proportions of dephosphoric slag (Thomas slag) and alumino-calcium phosphate, better known under the trade name of phospal.
According to a particular embodiment of the invention, a portion of the nitrogen can be obtained from another source, not ammoniacal, such as, for example:. calcium cyanamide, sodium nitrate, calcium nitrate etc ...
Likewise, a certain proportion of the phosphoric acid could be obtained from a source other than that mentioned above.
To these basic elements, the presence of which constitutes the originality of the invention, it is also possible to add various well-known constituents which are themselves either fertilizing products or products intended to improve the conditions. 'properties of this fertilizer in various fields.
Thus, the fertilizer according to the invention can also comprise potash and various other additions, in particular additions resulting in providing it with? elements known as trace elements such as iron, magnesia, zinc, manganese, cobalt, etc.
In a fertilizer as defined above, the proportions of alumino-calcium phosphate and slag can be absolutely any according to the particular destination of the fertilizer and the desired effect, and the percentage of slag. can thus vary from 0.5 to 99.5 by weight of the mixture. and, likewise, the weight of aluminum-calcium phosphate can vary from 99.5 to 0.5
<Desc / Clms Page number 3>
Using the elements which have just been indicated, it is possible to produce fertilizers of different types and very varied equilibrium such as 10-10-20, 8-8-15, 15,5,10 etc. .
. The fertilizer which has just been described can be provided in various forms and in particular be prepared in powder form as well as in granulated form. In the latter case, the granulation can take place by customary methods.
The embodiment of the invention which has just been described is, of course, only a non-limiting example, and any modifications of detail can be made to it without going beyond the scope of the invention.
CLAIMS -
1 Improved fertilizer essentially characterized in that nitrogen is essentially present, at least for the most part, in urea form obtained from urea and phosphoric acid, for the most part, in the form of a mixture in varying proportions of dephosphorization slag (Thomas slag) and aluminum-calcium or phosphate phosphate.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
BE552164A true BE552164A (en) |
Family
ID=177447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE552164D BE552164A (en) |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE552164A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2058297A1 (en) * | 1969-08-15 | 1971-05-28 | Chem & Phosphates Ltd |
-
0
- BE BE552164D patent/BE552164A/fr unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2058297A1 (en) * | 1969-08-15 | 1971-05-28 | Chem & Phosphates Ltd |
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