DE917072C - Fertilizer and process for its manufacture - Google Patents

Fertilizer and process for its manufacture

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Publication number
DE917072C
DE917072C DER9387A DER0009387A DE917072C DE 917072 C DE917072 C DE 917072C DE R9387 A DER9387 A DE R9387A DE R0009387 A DER0009387 A DE R0009387A DE 917072 C DE917072 C DE 917072C
Authority
DE
Germany
Prior art keywords
fertilizer
urea
condensation
formaldehyde
superphosphate
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
DER9387A
Other languages
German (de)
Inventor
Dr Carl Resau
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.)
CARL RESAU DR
Original Assignee
CARL RESAU DR
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 CARL RESAU DR filed Critical CARL RESAU DR
Priority to DER9387A priority Critical patent/DE917072C/en
Application granted granted Critical
Publication of DE917072C publication Critical patent/DE917072C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F7/00Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
    • C05F7/02Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses from sulfite liquor or other waste lyes from the manufacture of cellulose
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B1/00Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B1/00Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • C05B1/02Superphosphates

Description

Düngemittel und Verfahren zu seiner Herstellung Es ist schon mehrfach versucht worden, Sulfitablauge für Düngezwecke nutzbar zu machen. Ganz abgesehen davon, daß die bisher bekanntgewordenen Verfahren auf diesem Gebiete zu teuer sind, ist auch aus Sulfitablauge allein kein befriedigendes Düngemittel zu erhalten, weil durch sie die Ackerkrume verhärtet wird und sie außerdem nicht diejenigen Pflanzennährstoffe enthält, welche in einem guten Düngemittel enthalten sein müssen.Fertilizer and method of making it It's been several times attempts have been made to make sulphite waste liquor usable for fertilization purposes. Not to mention from the fact that the previously known processes in this area are too expensive, A satisfactory fertilizer cannot be obtained from sulphite waste liquor alone, because they harden the topsoil and they also do not lose those plant nutrients which must be contained in a good fertilizer.

Gegenstand der Erfindung ist nun ein Düngemittel, welches aus Sulfitablauge, Harnstoff, Formaldehyd und einem sauren Katalysator, wie z. B. Superphosphat, besteht. Beim Mischen dieser Bestandteile beginnt sofort die Kondensation, durch welche unmitelbar das verwendungsfähige Düngemittel erhalten wird. Da die Reaktion exotherm verläuft, ist eine Energiezufuhr nicht notwendig, so daß das Düngemittel billig herzustellen ist. Ein weiterer für die Verwertung des Düngemittels ausschlaggebender Vorteil ist darin zu erblicken, daß das durch die Kondensation entstandene Düngemittel sich nur langsam in der Bodenlösung der Ackerkrume auflöst, also sich nur allmählich zersetzt, wodurch die für die Düngung erforderlichen und in dem Düngemittel enthaltenen Pflanzennährstoffe, insbesondere der darin enthaltene Stickstoff, nur langsam abgegeben werden und der Düngewert lange Zeit erhalten bleibt sowie außerdem eine Verhärtung der Ackerkrume vermieden wird.The invention now relates to a fertilizer, which is made from sulphite waste liquor, Urea, formaldehyde and an acidic catalyst, such as. B. superphosphate. When these components are mixed, the condensation begins immediately, through which it is immediate the usable fertilizer is obtained. Since the reaction is exothermic, an energy supply is not necessary, so that the fertilizer is cheap to manufacture is. Another decisive advantage for the utilization of the fertilizer can be seen in the fact that the fertilizer created by the condensation dissolves only slowly dissolves in the soil solution of the arable topsoil, so only gradually decomposes, thereby making those necessary for fertilization and contained in the fertilizer Plant nutrients, especially the nitrogen they contain, are only released slowly and the fertilizer value is retained for a long time as well as hardening the topsoil is avoided.

Im Gegensatz zu einem bekannten schwerlöslichen Stickstoffdüngemittel, welches aus Formaldehyd und Harnstoff besteht, wird bei dem Düngemittel nach der Erfindung von Sulfitablauge ausgegangen und dadurch erreicht, daß die in der Sulfitablauge enthaltenen organischen Stoffe im Boden allmählich abgegeben werden und somit das Düngemittel einen aus natürlichen Ausgangsstoffen gewonnenen Pflanzennährstoff darstellt. Dies ist deswegen besonders wichtig, weil Sulfitablauge ein pflanzliches Produkt ist und außer seinen Hauptbestandteilen noch eine ganze Reihe für das Gedeihen der Pflanzen wichtiger organischer Stoffe und Spurenelemente enthält, wobei diese Stoffe die Bodengare wesentlich fördern.In contrast to a well-known poorly soluble nitrogen fertilizer, which consists of formaldehyde and urea, is used in the fertilizer according to the Invention based on sulphite liquor and achieved that in the sulphite liquor organic substances contained in the soil are gradually released and thus the Fertilizer is a plant nutrient obtained from natural raw materials. This is particularly important because of the sulphite waste liquor a herbal one A product is, and besides its main components, a whole series for flourishing the plants contain important organic substances and trace elements, these Substances that promote bottom cooking significantly.

Zur Herstellung des Düngemittels nach der Erfindung wird Sulfitablauge mit Harnstoff und Formaldehyd bis zur vollkommenen Lösung des Harnstoffes gemischt, worauf der Mässe z. B. Superphosphat zugesetzt wird. Die Kondensation setzt sofort ein, und die Viskosität der Masse steigt. Dabei erwärmt sich die Mischung durch exotherme Reaktion ohne äußere Energiezufuhr. Das Rühren wird unterbrochen, sobald ein dünner Brei entstanden ist. Die Kondensation ist beendet, wenn die Masse fest wird. Nach dem Abkühlen des Gemisches entsteht eine ockerfarbene, leicht schneid-und stechbare Masse aus einem Agglomerat feinstverteilter Kunstharzteilchen. Dabei hat die Sulfitablauge an der Kondensation teilgenommen, denn ein wäßriger Extrakt ist nur leicht gelb gefärbt.For the production of the fertilizer according to the invention, sulphite waste liquor is used mixed with urea and formaldehyde until the urea is completely dissolved, whereupon the measure z. B. superphosphate is added. The condensation sets in immediately a, and the viscosity of the mass increases. The mixture heats up through this exothermic reaction without external energy input. The stirring is stopped as soon as a thin pulp has arisen. The condensation is over when the mass solidifies will. After the mixture has cooled down, an ocher-colored, slightly cutting-and-edging arises pierceable mass of an agglomerate of finely divided synthetic resin particles. Has the sulphite liquor participated in the condensation because it is an aqueous extract only slightly yellow in color.

Dieses Endprodukt läßt sich ohne weiteres durch entsprechendes Zerkleinern oder Pulverisieren in streufähige Form bringen. Eine besondere Trocknung braucht nicht vorgenommen zu werden, so daß die Ausbeute eine iood/dige ist. Ein Mehrstoffdüngemittel läßt sich durch nachträgliche Beimengung der noch fehlenden Bestandteile, wie z. B. Kalisalzen, nach Belieben erhalten.This end product can be easily comminuted or pulverize it in a sprinkling form. Needs a special drying not to be made so that the yield is a good / dige. A multi-component fertilizer can be added by the subsequent addition of the missing ingredients, such. B. Potash, obtained ad libitum.

Nach dem vorbeschriebenen Verfahren werden beispielsweise 75o Gewichtsteile Sulfitablauge von 32° Be, 33o Gewichtsteile Formaldehyd, 35°/04g, und Zoo Gewichtsteile Harnstoff miteinander bis zur völligen Lösung des letzteren gemischt und dem Gemisch dann Zoo Gewichtsteile Superphosphat unter weiterem Rühren zugesetzt.According to the method described above, for example, 75o parts by weight Sulphite waste liquor of 32 ° Be, 33o parts by weight formaldehyde, 35 ° / 04g, and Zoo parts by weight Urea mixed with each other until the latter completely dissolves and the mixture then zoo parts by weight of superphosphate were added with continued stirring.

Die Analyse des so hergestellten Düngemittels bestätigt den hohen Gehalt an organisch gebundenen Kohlenwasserstoffen des Lignins, an Stickstoff, Calcium und Phosphorsäure. Ferner sind darin in geringeren Mengen Kalium, Magnesium, Eisen Mangan, Silicium und Schwefel sowie als Spurenelemente Arsen, Selen, Blei, Kupfer und Aluminium enthalten.The analysis of the fertilizer produced in this way confirms the high Content of organically bound lignin hydrocarbons, nitrogen, calcium and phosphoric acid. It also contains small amounts of potassium, magnesium and iron Manganese, silicon and sulfur and, as trace elements, arsenic, selenium, lead and copper and aluminum included.

Claims (2)

PATENTANSPRÜCHE: i. Düngemittel, dadurch gekennzeichnet, daß es aus Sulfitablauge, Harnstoff, Fomaldehyd und einem sauren Katalysator, wie z. B. Superphosphat, besteht. PATENT CLAIMS: i. Fertilizer, characterized in that it consists of Sulphite waste liquor, urea, formaldehyde and an acidic catalyst, such as. B. superphosphate, consists. 2. Verfahren zur Herstellung eines Düngemittels nach Anspruch i, dadurch gekennzeichnet, daß Sulfitablauge mit Harnstoff und Formaldehyd bis zur vollkommenen Lösung des Harnstoffes gemischt und die Masse unter Zusatz des sauren Katalysators, wie z. B. Superphosphat, so lange gerührt wird, bis durch die sofort einsetzende Kondensation und die dadurch entstehende Erwärmung infolge exothermer Reaktion ein Brei erhalten wird, der durch die weiter fortschreitende Kondensation zu einer festen, schneid- und stechbaren Masse umgewandelt wird, die nach Abkühlung, z. B. durch Zerkleinern oder Pulverisieren, in streufähige Form gebracht wird. Angezogene Druckschriften Deutsche Patentschriften Nr. .43i 585, 265 689.2. A method for producing a fertilizer according to claim i, characterized in that characterized that sulphite liquor with urea and formaldehyde up to the perfect Solution of urea mixed and the mass with the addition of the acidic catalyst, such as B. superphosphate, is stirred until through the immediately onset Condensation and the resulting heating as a result of the exothermic reaction Porridge is obtained, which by the further progressing condensation to a solid, cuttable and pierceable mass is converted, which after cooling, z. B. by Crushing or pulverizing is brought into spreadable form. Attracted pamphlets German patent specifications No. 43i 585, 265 689.
DER9387A 1952-07-02 1952-07-02 Fertilizer and process for its manufacture Expired DE917072C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER9387A DE917072C (en) 1952-07-02 1952-07-02 Fertilizer and process for its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER9387A DE917072C (en) 1952-07-02 1952-07-02 Fertilizer and process for its manufacture

Publications (1)

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DE917072C true DE917072C (en) 1954-08-23

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DER9387A Expired DE917072C (en) 1952-07-02 1952-07-02 Fertilizer and process for its manufacture

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DE (1) DE917072C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964603C (en) * 1954-08-19 1957-05-23 Gewerk Victor Chem Werke Process for the production of slow-acting nitrogen fertilizers
DE1139133B (en) * 1957-08-27 1962-11-08 Erling Bjarne Johnson Process for the production of shaped plant nutrients

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE265689C (en) *
DE431585C (en) * 1924-09-14 1926-07-12 J G Farbenindustrie Akt Ges Fertilizer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE265689C (en) *
DE431585C (en) * 1924-09-14 1926-07-12 J G Farbenindustrie Akt Ges Fertilizer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964603C (en) * 1954-08-19 1957-05-23 Gewerk Victor Chem Werke Process for the production of slow-acting nitrogen fertilizers
DE1139133B (en) * 1957-08-27 1962-11-08 Erling Bjarne Johnson Process for the production of shaped plant nutrients

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