DE1592567C3 - Process for the preparation of a suspension fertilizer - Google Patents
Process for the preparation of a suspension fertilizerInfo
- Publication number
- DE1592567C3 DE1592567C3 DE19651592567 DE1592567A DE1592567C3 DE 1592567 C3 DE1592567 C3 DE 1592567C3 DE 19651592567 DE19651592567 DE 19651592567 DE 1592567 A DE1592567 A DE 1592567A DE 1592567 C3 DE1592567 C3 DE 1592567C3
- Authority
- DE
- Germany
- Prior art keywords
- fertilizers
- suspension
- solution
- digestion
- ammonia
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
- C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
- C05B11/06—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using nitric acid (nitrophosphates)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Description
3 43 4
lichem P2O5 (in % vom Gesamtgehalt an P2O5) nur wenig Feststoffe ab, die durch Rühren wiederLichem P 2 O 5 (in% of the total P 2 O 5 content) from only a few solids, which can be recovered by stirring
(Ordinate) in Abhängigkeit vom ,Gewichtsverhältnis leicht in Suspension gebracht werden können. Die(Ordinate) can easily be brought into suspension depending on the weight ratio. the
P2O5: CaO in der Mutterlauge zu entnehmen. Es Suspension wird zur Vermeidung von NH3-VerlustenP 2 O 5 : CaO can be found in the mother liquor. It is a suspension to avoid NH 3 losses
ergibt sich, daß mit steigendem Gewichtsverhältnis bei der Lagerung oder Weiterverarbeitung mitit follows that with increasing weight ratio in storage or further processing with
P2O5: CaO der wasserlösliche Anteil des in der 5 Salpetersäure, Schwefelsäure oder Formaldehyd inP 2 O 5 : CaO is the water-soluble fraction of the nitric acid, sulfuric acid or formaldehyde in the 5
Suspension enthaltenen Gesamt-Ρ,Ο- stark ansteigt. solcher Menge versetzt, daß sie einen pH-Wert vonTotal-Ρ, Ο- contained in the suspension rises sharply. such amount added that it has a pH of
Der insgesamt der Pflanze zur Verfügung stehende etwa 6,0 erreicht. Sie weist ein NährstoffverhältnisThe total available to the plant is around 6.0. It exhibits a nutritional ratio
P2O5-Gehalt (citratlöslicher Anteil) erreicht Werte N: P2O5 = 1:1 und einen ungefähren Nährstoff-P 2 O 5 content (citrate-soluble portion) reaches values N: P 2 O 5 = 1: 1 and an approximate nutrient
von mindestens 98 °/o. gehalt von 15/15/0 auf. In diese Suspension wird zurof at least 98 ° / o. content of 15/15/0 on. In this suspension is used for
Aus den erfindungsgemäß erhaltenen NP-Suspen- io Herstellung eines NPK-Düngemittels bei Raumsionen kann durch Zusatz von Kalisalzen, z. B. temperatur unter kräftigem Rühren Kaliumchlorid Kaliumchlorid, Kaliumsulfat, ein NPK-Düngemittel mit einer Korngröße von weniger als 0,5 mm in hergestellt werden, dessen Nährstoffgehalt mindestens solcher Menge eingetragen, daß sie einen Nährstoff-10/10/10 beträgt. Das Nährstoffverhältnis kann gehalt von 12/12/12 erreicht. Auch diese Suspension selbstverständlich durch Zusatz anderer nährstoff- 15 setzt sich nur langsam ab und kann ebenfalls leicht haltiger Substanzen, z.B. Harnstoff oder Ammonium- wieder aufgeführt werden. Sie weist einen Gehalt an nitrat, verändert werden. So ist es z. B. möglich, citratlöslichem P2O5 von 98 % des ursprünglich in durch Zusatz dieser Substanzen NPK-Düngemittel- der Mutterlauge enthaltenen P2O5 auf und einen suspensionen herzustellen, deren Nährstoffgehalt wasserlöslichen Anteil an P9O5 von 53%. Durch 14/9/9 oder 13/13/10 beträgt. 20 Zusatz von Harnstoff kann man ein Düngemittel . " ■ erhalten, das einen Nährstoffgehalt von beispielsweise BeisPiei x 12/10/14 aufweist.From the NP-suspension obtained according to the invention io production of an NPK fertilizer in the case of space ions, by adding potassium salts, for. B. temperature with vigorous stirring potassium chloride, potassium chloride, potassium sulfate, an NPK fertilizer with a grain size of less than 0.5 mm in which the nutrient content entered at least such an amount that it is a nutrient 10/10/10. The nutrient ratio can reach 12/12/12. This suspension, too, of course, due to the addition of other nutrients, only settles slowly and can also contain substances with a low content, for example urea or ammonium. It has a nitrate content that can be changed. So it is B. possible, citrate-soluble P 2 O 5 of 98% of the originally contained in the mother liquor by adding these substances NPK fertilizer P 2 O 5 and to produce a suspension, the nutrient content of which is water-soluble portion of P 9 O 5 of 53%. Through 14/9/9 or 13/13/10 amounts. 20 The addition of urea can make a fertilizer. "■ obtained that has a nutritional content of, for example, Beis P iei x 12/10/14.
Aus einer Lösung, die durch Behandeln von 100 Beisr>iel2From a solution obtained by treating 100 examples 2
Gewichtsteilen Pebble-Phosphat mit 215 Gewichts- .Parts by weight of pebble phosphate with 215 parts by weight.
teilen 55prozentiger Salpetersäure erhalten worden 25 Aus einer Aufschlußlösung, die durch Behandelnshare 55 per cent nitric acid has been obtained 25 from a digestion solution obtained by treating
ist, wird soviel Calciumnitrat-Tetrahydrat abgetrennt, von Marokko-Phosphat mit Salpetersäure erhaltenis, as much calcium nitrate tetrahydrate is separated as obtained from Morocco phosphate with nitric acid
daß in der verbleibenden Mutterlauge ein Gewichts- worden ist, wird soviel Calciumnitrat-TetrahydratThat there is a weight in the remaining mother liquor becomes so much calcium nitrate tetrahydrate
verhältnis P ,O5: CaO von 1,70 eingestellt wird. Ein durch Kühlung abgetrennt, daß in der verbleibendenratio P, O 5 : CaO of 1.70 is set. One separated by cooling that in the remaining
Teil dieser Mutterlauge wird unter kräftigem Rühren Mutterlauge das Gewichtsverhältnis P2O5 : CaO = The weight ratio P 2 O 5 : CaO = becomes part of this mother liquor while stirring vigorously
und unter Kühlung solange in 1001 25prozentigem 30 2,30 beträgt. Die Mutterlauge wird, wie in Beispiel 1and with cooling as long as in 1001 25 percent 30 is 2.30. The mother liquor is as in Example 1
Ammoniakwasser bei einer Temperatur von 40° C beschrieben, zu einer NP-Suspension verarbeitet, dieAmmonia water at a temperature of 40 ° C described, processed into a NP suspension, which
eingetragen, bis die Reaktionslösung einen pH-Wert ein Nährstoffverhältnis N: P,O5 — 1:1 und einenentered until the reaction solution has a pH value, a nutrient ratio N: P, O 5 - 1: 1 and a
von 7,5 erreicht hat. In die so gewonnene Flüssig- Nährstoffgehalt von 16/16/0 "aufweist. Durch Zusatzof 7.5. In the liquid thus obtained has nutrient content of 16/16/0 ". By addition
keitsvorlage wird kontinuierlich unter Aufrecht- von Kaliumchlorid und Harnstoff läßt sich aus dieserkeitsvorlage is continuously maintained by potassium chloride and urea can be from this
erhaltung einer Temperatur von 40° C und eines 35 Suspension ein Düngemittel herstellen, das einenMaintaining a temperature of 40 ° C and a 35 suspension produce a fertilizer that has a
pH-Wertes von 7,5 die restliche Mutterlauge zusam- Nährstoffgehalt von 14/9/9 besitzt. Der Gehalt dieserpH value of 7.5 the remaining mother liquor together has nutrient content of 14/9/9. The content of this
men mit Ammoniakgas eingeführt. Die dabei ent- Suspension an citratlöslichem P2O5 liegt bei 99%,men with ammonia gas introduced. The suspension of citrate-soluble P 2 O 5 is 99%,
stehende Suspension, die als Feststoff sehr feinteiligen während der Anteil an wasserlöslichem P2O5 65 %standing suspension, which is very finely divided as a solid while the proportion of water-soluble P 2 O 5 is 65%
Apatit enthält, setzt auch bei monatelanger Lagerung beträgt.Contains apatite, continues to amount even after months of storage.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB0083068 | 1965-07-31 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1592567A1 DE1592567A1 (en) | 1971-01-07 |
DE1592567B2 DE1592567B2 (en) | 1973-05-24 |
DE1592567C3 true DE1592567C3 (en) | 1974-01-24 |
Family
ID=6981788
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19651592567 Expired DE1592567C3 (en) | 1965-07-31 | 1965-07-31 | Process for the preparation of a suspension fertilizer |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE684869A (en) |
DE (1) | DE1592567C3 (en) |
DK (1) | DK117431B (en) |
GB (1) | GB1125664A (en) |
NL (1) | NL6610521A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7902405A (en) * | 1979-03-28 | 1980-09-30 | Unie Van Kunstmestfab Bv | METHOD FOR PREPARING COMPOSITE SUSPENSION FERTILIZERS. |
CN110357054A (en) * | 2019-07-29 | 2019-10-22 | 四川大学 | The pretreated method of phosphorus ore |
CN112704956B (en) * | 2020-12-30 | 2022-11-18 | 金正大生态工程集团股份有限公司 | Method for strengthening separation of acid-insoluble substances in phosphorite decomposed by nitric acid and application of acid-insoluble substances |
-
1965
- 1965-07-31 DE DE19651592567 patent/DE1592567C3/en not_active Expired
-
1966
- 1966-07-26 NL NL6610521A patent/NL6610521A/xx unknown
- 1966-07-29 DK DK394666A patent/DK117431B/en unknown
- 1966-07-29 BE BE684869D patent/BE684869A/xx unknown
- 1966-07-29 GB GB3417366A patent/GB1125664A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DK117431B (en) | 1970-04-27 |
DE1592567B2 (en) | 1973-05-24 |
GB1125664A (en) | 1968-08-28 |
NL6610521A (en) | 1967-02-01 |
BE684869A (en) | 1967-01-30 |
DE1592567A1 (en) | 1971-01-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) |