DE696234C - Process for the production of ammonium citrate-soluble phosphate fertilizers - Google Patents

Process for the production of ammonium citrate-soluble phosphate fertilizers

Info

Publication number
DE696234C
DE696234C DE1939I0064024 DEI0064024D DE696234C DE 696234 C DE696234 C DE 696234C DE 1939I0064024 DE1939I0064024 DE 1939I0064024 DE I0064024 D DEI0064024 D DE I0064024D DE 696234 C DE696234 C DE 696234C
Authority
DE
Germany
Prior art keywords
production
ammonium citrate
soluble phosphate
phosphate fertilizers
phosphate
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
Application number
DE1939I0064024
Other languages
German (de)
Inventor
Dr Friedrich Brohmeyer
Dr Irnfried Petersen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DE1939I0064024 priority Critical patent/DE696234C/en
Application granted granted Critical
Publication of DE696234C publication Critical patent/DE696234C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
    • C05B13/02—Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Description

Verfahren zur Herstellung von arnmoncitratlöslichen Phosphatdüngemitteln Gegenstand des Hauptpatents 692 196 ist ein Verfahren zur Herstellung von ammoncitratlöslichen Phosphatdüngemitteln durch Glühaufschluß von Rohphosphaten bei etwa iooo° unter Verwendung der beim Aufschluß cellulosehaltiger Stoffe; insbesondere Buchenholz, mit Salpetersäure und nachfolgende Behandlung der Aufschlußprodukte mit Alkalien anfallenden alkalihaltigen Ablaugen als den Aufschluß bewirkende Alkaliträger.Process for the production of ammonium citrate-soluble phosphate fertilizers The subject of the main patent 692 196 is a process for the production of ammonium citrate-soluble phosphate fertilizers by calcining raw phosphates at about 100 ° using the substances containing cellulose during the digestion; in particular beech wood, with nitric acid and subsequent treatment of the decomposition products with alkaline waste liquors obtained from alkalis as the alkali carriers causing the decomposition.

Es wurde nun in weiterer Ausbildung des Verfahrens des Hauptpatents gefunden, daß man statt der Ablaugen, deren Verwendüng infolge ihres Ballastes an Wasser und unerwünschten organischen Nebenstoffen bisher an den Ort ihres Anfalles gebunden war, auch die aus ihnen durch Eindampfen und unvollkommene Verbrennung unterhalb 6oo° erhältlichen Festprodukte verwenden kann. Diese haben den Vorteil der besseren und wirtschaftlicheren Versandfähigkeit, so daß ihre auf den höheren Alkaligehalt beruhende Verwendung auch an Orten ermöglicht ist, die fernab von der Anfallstelle der Abfalllaugen liegen.It has now been further developed in the process of the main patent found that instead of the waste liquors, their use due to their ballast Water and unwanted organic by-products so far at the place of their occurrence was bound, even from them by evaporation and imperfect combustion can use solid products available below 600 °. These have the advantage the better and more economical shipping capability, so its on the higher Alkali based use is also possible in places far away from the Place where the waste liquor arises.

Zur Herstellung der Phosphatformlinge wird das Gemisch von Phosphat und der verfestigten Schwarzlauge mit geringen Mengen Wasser oder nichtverfestigter Schwarzlauge angeteigt. Die weitere Verarbeitung dieser Formlinge ist die gleiche wie nach dem Verfahren des Hauptpatents.The phosphate mixture is used to produce the phosphate moldings and the solidified black liquor with small amounts of water or non-solidified Black liquor made into a paste. The further processing of these bricks is the same as in the procedure of the main patent.

Beispiel ioo kg eines feinkörnigen Marokkorohphosphats mit 34,490 P205-Gehalt werden mit 48 kg verfestigter Schwarzlauge, die 3-,5 % Natrium (Rest Kohle) enthält, unter geringem Zusatz von Sand und Wasser innig vermischt, so daß sich ein Granulat bildet, das im Glühofen bei einer Temperatur von etwa i ioo° geglüht wird. Das anfällende Glühphosphat weist einen Gesamtgehalt von a4,5 % P. 0S auf, von denen '95 °fo in citratlöslicher Form vorliegen.Example 100 kg of a fine-grained Moroccan phosphate with 34.490 P205 content are intimately mixed with 48 kg of solidified black liquor containing 3, 5% sodium (remainder coal) with a small amount of sand and water, so that granules are formed Annealing furnace is annealed at a temperature of about 100 °. The calcined phosphate which accrues has a total content of a4.5% P. 0S, of which 95 ° fo are in citrate-soluble form.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von ammoncitratlöslichen Phosphatdüngemitteln nach Patent 692 196, dadurch gekennzeichnet, daß an Stelle der alkalihaltigen Ablaugen ihre durch Eindampfen und nachfolgende unvollkommene Verbrennung bei Temperaturen von ühterhalb 6oo° erhaltenen Festprodukte als den., Aüfschluß bewirkende Allcaliträger Verwendung finden.PATENT CLAIM: A process for the production of ammonium citrate-soluble phosphate fertilizers according to patent 692 196, characterized in that, instead of the alkaline waste liquors, their solid products obtained by evaporation and subsequent incomplete combustion at temperatures above 600 ° are used as the allcalite carrier which causes exclusion.
DE1939I0064024 1939-03-10 1939-03-10 Process for the production of ammonium citrate-soluble phosphate fertilizers Expired DE696234C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1939I0064024 DE696234C (en) 1939-03-10 1939-03-10 Process for the production of ammonium citrate-soluble phosphate fertilizers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1939I0064024 DE696234C (en) 1939-03-10 1939-03-10 Process for the production of ammonium citrate-soluble phosphate fertilizers

Publications (1)

Publication Number Publication Date
DE696234C true DE696234C (en) 1940-09-14

Family

ID=7196035

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1939I0064024 Expired DE696234C (en) 1939-03-10 1939-03-10 Process for the production of ammonium citrate-soluble phosphate fertilizers

Country Status (1)

Country Link
DE (1) DE696234C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294978B (en) * 1966-09-13 1969-05-14 Kali Chemie Ag Process for the production of gluehphosphate fertilizers
DE1294979B (en) * 1966-11-16 1969-05-14 Kali Chemie Ag Process for the production of gluehphosphate fertilizers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294978B (en) * 1966-09-13 1969-05-14 Kali Chemie Ag Process for the production of gluehphosphate fertilizers
DE1294979B (en) * 1966-11-16 1969-05-14 Kali Chemie Ag Process for the production of gluehphosphate fertilizers

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