DE818198C - Process for the production of fertilizers - Google Patents

Process for the production of fertilizers

Info

Publication number
DE818198C
DE818198C DEP12726A DEP0012726A DE818198C DE 818198 C DE818198 C DE 818198C DE P12726 A DEP12726 A DE P12726A DE P0012726 A DEP0012726 A DE P0012726A DE 818198 C DE818198 C DE 818198C
Authority
DE
Germany
Prior art keywords
dust
fertilizers
gas cleaning
production
furnace gas
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
DEP12726A
Other languages
German (de)
Inventor
Heinrich Dr-Ing Pieper
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.)
Ruhrstahl AG
Original Assignee
Ruhrstahl 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 Ruhrstahl AG filed Critical Ruhrstahl AG
Priority to DEP12726A priority Critical patent/DE818198C/en
Application granted granted Critical
Publication of DE818198C publication Critical patent/DE818198C/en
Priority to BE575016A priority patent/BE575016A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05DINORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00Other inorganic fertilisers
    • C05D9/02Other inorganic fertilisers containing trace elements
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05CNITROGENOUS FERTILISERS
    • C05C3/00Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)
  • Treating Waste Gases (AREA)

Description

Verfahren zur Herstellung von Düngemitteln Es ist bekannt, den bei Gichtgasreinigungsanlagen anfallenden Staub wegen seiner hohen Gehalte an Kali-, Phosphorverbindungen und Kalk als Dügemittel zu verwenden. Dieser Verwendung entgegen stehen seine pyrophoren Eigenschaften, sein niedriges spezifisches Gewicht und seine Feinheit. Durch Anwendung geeigneter Maßnahmen, z. B. Einnebeln des schlammförmigen Staubes zur Trocknung in einem heißen Gasstrom u. ä., versuchte man daher, ihn in eine streufähige, körnige Ware zu verwandeln, der man gegebenenfalls andere bekannte Düngemittel zusetzen könnte.Process for the production of fertilizers It is known that the at Blast furnace gas cleaning systems accumulate dust because of its high content of potash, Use phosphorus compounds and lime as fertilizers. Against this use stand its pyrophoric properties, its low specific weight and its Fineness. By applying suitable measures, e.g. B. Fogging the muddy Dust for drying in a hot gas stream and the like, attempts were therefore made to put it in to transform a spreadable, granular product that is known to others if necessary Could add fertilizers.

Man hat zwar schon den trockenen Gichtstaub, so wie er anfiel, auf die Felder gefahren, doch geschah dies nur von den Landwirten, die in der Nähe der Anfallstelle wohnten. Eine allgemeinere Verwendung hat der Lichtstaub jedenfalls nicht gefunden, auch dann nicht, als man ihn nach einem der bekannten Verfahren in eine streufähige körnige Ware verwandelte, was nicht weiter überraschte, da Versuche des Erfinders ergeben haben, äaß Gichtstaub trotz seiner an sich günstigen Zusammensetzung keine bemerkenswerte Düngewirkung zeigt.You already have the dry gout dust as it was generated drove the fields, but this was only done by the farmers who lived near the Place of occurrence lived. In any case, light dust has a more general use not found, not even after one of the known methods turned into a granular product that could be sprinkled, which was not surprising given attempts of the inventor have shown that gout dust in spite of its favorable composition shows no remarkable fertilizing effect.

Die Erfindung geht von der Erkenntnis aus, daß sich der Gichtstaub aus Trockengasreinigungsanlagen dann mit überraschend großem Erfolg zu Düngezwecken verwenden läßt, wenn er anderen Düngemitteln, insbesondere Hüttenkalk oder Ammoniumsulfat, in geringer Menge zugesetzt wird. Als günstige Menge hat sich ein Zusatz von io bis 3o°/, ergeben. Als besonders wirkungsvoll erwies sich bei der erfindungsgemäßen Herstellung von Düngemitteln ein solcher Filterstaub aus der Trockengichtgasreinigung, bei der vor die Filterschläuche noch Wirbler eingeschaltet waren. Solche Staube zeigen einen sehr hohen Anteil an Metallen bzw. Metalloxyden, die nicht nur für sich auf den Pflanzenwuchs günstig einwirken, sondern auch auf die bessere Ausnutzung der Düngewirkung der Hauptmasse des Düngemittels einwirken. So zeigte z. B. ein bei der trockenen Gichtgasreinigung anfallender Filterstaub etwa folgende Zusammensetzung: Zn0 Fe0 Pb0 A1203 25 bis 35 2o bis 25 3 3 % MnO Mg0 Ca0 Si02 3 4 9 9 % Rest: Kohlenstoff und Alkalien.The invention is based on the knowledge that the flue dust from dry gas cleaning systems can be used for fertilization purposes with surprisingly great success if it is added in small quantities to other fertilizers, in particular cottage lime or ammonium sulfate. An addition of 10 to 30% has been found to be a favorable amount. In the production of fertilizers according to the invention, a filter dust of this type from the drying furnace gas cleaning in which swirlers were switched on in front of the filter bags proved to be particularly effective. Such dusts show a very high proportion of metals or metal oxides, which not only have a beneficial effect on plant growth, but also have a better utilization of the fertilizing effect of the main mass of the fertilizer. For example, B. A filter dust that occurs during dry furnace gas cleaning has the following composition: Zn0 Fe0 Pb0 A1203 25 to 35 2o to 25 3 3% MnO Mg0 Ca0 Si02 3 4 9 9 % Remainder: carbon and alkalis.

Es ist nicht erforderlich, den Gichtstaub in körnige Form zu bringen, wenn man ihn dem Hüttenkalk vor dem Mahlen zusetzt oder, wenn man ihn mit anderen künstlichen Düngemitteln oder auch Stalldünger innig mischt. Beim Zusatz zu Ammoniumsulfat ergibt sich als weiterer Vorteil, daß etwa noch vorhandene freie Schwefelsäure neutralisiert wird.It is not necessary to bring the gout dust into granular form, when you add it to the slag lime before grinding or when you add it with others artificial fertilizers or manure mixes intimately. When added to ammonium sulfate Another advantage is that any free sulfuric acid still present is neutralized will.

Zu den Trockengasreinigungsanlagen gehören im Sinne der Erfindung auch solche, bei denen der Gichtgasstaub auf elektrischem Wege niedergeschlagen wird.The dry gas cleaning systems belong in the context of the invention also those in which the gas dust is electrically precipitated will.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Düngemitteln aus dem bei der trockenen Gichtgasreinigung anfallenden Staub, dadurch gekennzeichnet, daß dieser Staub, insbesondere der in solchen trockenen Gichtgasreinigungsanlagen, bei denen vor die Filterschläuche Wirbler geschaltet sind, gewonnene Staub, mit anderen Düngemitteln, wie gemahlener Hochofenschlacke oder schwefelsaurem Ammoniak, in Mengen von etwa io bis 30°/o innig vermischt wird. PATENT CLAIM: Process for the production of fertilizers from the dust that occurs during dry furnace gas cleaning, characterized in that this dust, in particular the dust obtained in such dry furnace gas cleaning systems in which swirlers are connected in front of the filter bags, with other fertilizers, such as ground blast furnace slag or sulfuric acid ammonia, is intimately mixed in amounts of about 10 to 30%.
DEP12726A 1948-10-02 1948-10-02 Process for the production of fertilizers Expired DE818198C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEP12726A DE818198C (en) 1948-10-02 1948-10-02 Process for the production of fertilizers
BE575016A BE575016A (en) 1948-10-02 1959-01-23 Lining for packaging containers such as boxes, cartons, etc.,

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP12726A DE818198C (en) 1948-10-02 1948-10-02 Process for the production of fertilizers

Publications (1)

Publication Number Publication Date
DE818198C true DE818198C (en) 1951-10-22

Family

ID=7364228

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP12726A Expired DE818198C (en) 1948-10-02 1948-10-02 Process for the production of fertilizers

Country Status (2)

Country Link
BE (1) BE575016A (en)
DE (1) DE818198C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1041062B (en) * 1957-05-16 1958-10-16 Walter Jost Micronutrients or trace element fertilizers from the exhaust gases of the metalworking industries
DE973050C (en) * 1952-07-06 1959-11-19 Ruhrchemie Ag Process for the production of a lime ammonium nitrate which can be stored well

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE973050C (en) * 1952-07-06 1959-11-19 Ruhrchemie Ag Process for the production of a lime ammonium nitrate which can be stored well
DE1041062B (en) * 1957-05-16 1958-10-16 Walter Jost Micronutrients or trace element fertilizers from the exhaust gases of the metalworking industries

Also Published As

Publication number Publication date
BE575016A (en) 1959-05-15

Similar Documents

Publication Publication Date Title
DE818198C (en) Process for the production of fertilizers
DE969208C (en) Mixed fertilizer made from Thomas phosphate and potash salts
DE569734C (en) Process for the production of a silica-containing phosphoric acid fertilizer
DE719869C (en) Process for making a shelf stable, grained superphosphate
DE609686C (en) Process for the production of a neutral mixed fertilizer containing phosphoric acid in citrate-soluble form
DE679793C (en) Process for the coring of flotation gravel
DE730289C (en) Process for the manufacture of weed killers
DE852671C (en) Production of a hydraulic binder
DE849703C (en) Thinning and improvement of agricultural soils
AT206906B (en) Trace element fertilizer additive
DE733421C (en) Promotion of plant growth
DE739176C (en) Process for the production of a fertilizer containing phosphoric acid
DE866344C (en) Process for the production of fertilizers containing manganese compounds which are soluble in dilute acids
DE550939C (en) Process for the production of a granular fertilizer suitable for spreading from the dust that falls off from furnace gas cleaning systems
DE557830C (en) Process for the treatment of iron oxides to enhance their effect as gas cleaning agents
DE940901C (en) Means for improving alkaline clay soils and a process for the preparation thereof
AT107848B (en) Process for the preparation of a fertilizer containing phosphorus and sulfur.
DE655447C (en) Production of grained calcium cyanamide or grained mixed fertilizer containing calcium cyanamide
DE688220C (en) Process for the production of a non-dusting, easily spreadable alkaline fertilizer from bone meal
DE929794C (en) Process for treating unfired and burnt thin limes with peat
DE973978C (en) Process for increasing the yield of crops
DE1642226C3 (en) Process for the production of a black colored growing medium
DE594316C (en) Process for the ammonization of slag phosphates produced by wet means
DE951151C (en) Process to increase the effectiveness of the phosphoric acid content in raw or calcined alumina phosphates
AT158262B (en) Process for the production of a non-dusting, easily spreadable alkaline fertilizer from bone meal.