DE396215C - Process for the production of mixed fertilizers - Google Patents

Process for the production of mixed fertilizers

Info

Publication number
DE396215C
DE396215C DEA35644D DEA0035644D DE396215C DE 396215 C DE396215 C DE 396215C DE A35644 D DEA35644 D DE A35644D DE A0035644 D DEA0035644 D DE A0035644D DE 396215 C DE396215 C DE 396215C
Authority
DE
Germany
Prior art keywords
production
mixed
mixed fertilizers
fertilizers
phosphoric acid
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
DEA35644D
Other languages
German (de)
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.)
ALLG GES fur CHEMISCHE IND M
Original Assignee
ALLG GES fur CHEMISCHE IND M
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 ALLG GES fur CHEMISCHE IND M filed Critical ALLG GES fur CHEMISCHE IND M
Priority to DEA35644D priority Critical patent/DE396215C/en
Application granted granted Critical
Publication of DE396215C publication Critical patent/DE396215C/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Verfahren zur Herstellung von Mischdüngern. Aus Thomasmehl oder sogenannten Glühphosphaten und Ammonsalzen lassen sich keine Mischdünger herstellen, da die alkalisch reagierenden Phosphate aus den Ammonsalzen Ammoniak verflüchtigen. Mischdünger aus Thomasmehl und Kalkstickstoff sind zwar haltbar, eignen sich aber ihres Gehaltes an Kalkstickstoff wegen nicht als Kopfdünger. Es wurde nun gefunden, daB durch Mischen der alkalischen Phosphorsäuredünger, wie Thomasmehl, Rhenaniaphosphat, Woltersphosphat und anderen Glühphosphaten mit Harnstoff Mischdünger erhalten werden, welche haltbar und als Kopfdünger verwendbar sind. Ausführungsbeispiel: r. 71 Teile Thomasmehl, das 17 Prozent Phosphorsäure enthält, werden mit 29 Teilen Harnstoff gemischt.Process for the production of mixed fertilizers. From Thomas flour or so-called Calcined phosphates and ammonium salts cannot be produced as mixed fertilizers because the alkaline phosphates from the ammonium salts volatilize ammonia. Mixed fertilizer made from Thomas flour and calcium cyanamide are durable, but their content is suitable because of calcium cyanamide not as top fertilizer. It has now been found that by mixing the alkaline phosphoric acid fertilizer, such as Thomas flour, rhenaniaphosphate, wolter phosphate and other calcined phosphates with urea mixed fertilizers can be obtained, which are durable and can be used as top fertilizer. Embodiment: r. 71 parts of Thomas flour, containing 17 percent phosphoric acid are mixed with 29 parts urea.

2. 75 Teile Rhenaniaphosphat mit 14 Prozent Phosphorsäure werden mit 25 Teilen Harnstoff gemischt.2. 75 parts of rhenaniaphosphate with 14 percent phosphoric acid are added 25 parts of urea mixed.

Claims (1)

PATENT-ANSPRUCFI: Verfahren zur Herstellung von Mischdüngern, dadurch gekennzeichnet, daB alkalischen Phosphorsäuredüngern, wie Thomasmehl; Rhenaniaphosphat, Wolterphosphat und anderen Glühphosphaten- vor oder nach dem Mahlen Harnstoff zugemischt wird.PATENT-ANSPRUCFI: Process for the production of mixed fertilizers, thereby characterized that alkaline phosphoric acid fertilizers, such as Thomas flour; Rhenaniaphosphate, Wolter phosphate and other calcined phosphates mixed with urea before or after grinding will.
DEA35644D 1921-06-10 1921-06-10 Process for the production of mixed fertilizers Expired DE396215C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA35644D DE396215C (en) 1921-06-10 1921-06-10 Process for the production of mixed fertilizers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA35644D DE396215C (en) 1921-06-10 1921-06-10 Process for the production of mixed fertilizers

Publications (1)

Publication Number Publication Date
DE396215C true DE396215C (en) 1924-05-27

Family

ID=6929168

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA35644D Expired DE396215C (en) 1921-06-10 1921-06-10 Process for the production of mixed fertilizers

Country Status (1)

Country Link
DE (1) DE396215C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE880445C (en) * 1949-04-11 1953-06-22 Erven Ankersmit C V Process for the production of lime fertilizers
DE1237591B (en) * 1962-10-18 1967-03-30 Scholven Chemie Ag Process for the production of granulated complex fertilizers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE880445C (en) * 1949-04-11 1953-06-22 Erven Ankersmit C V Process for the production of lime fertilizers
DE1237591B (en) * 1962-10-18 1967-03-30 Scholven Chemie Ag Process for the production of granulated complex fertilizers

Similar Documents

Publication Publication Date Title
DE396215C (en) Process for the production of mixed fertilizers
DE609686C (en) Process for the production of a neutral mixed fertilizer containing phosphoric acid in citrate-soluble form
US302266A (en) Treating phosphates for fertilizers
GB951476A (en) Manufacture of solid ammonium phosphates
US1610109A (en) Manufacture of fertilizers
GB339340A (en) Improvements in and relating to the treatment of phosphate rock and the like
AT76379B (en) Process for the production of urea superphosphate mixtures.
DE418874C (en) Manufacture of fertilizers
DE553985C (en) Process for the production of a concentrated fertilizer
AT99638B (en) Process for the production of a fertilizer containing phosphorus and nitrogen.
AT110254B (en) Process for producing a durable mixture of different types of fertilizer.
DE404622C (en) Process for transferring the ammonium nitrate into a well-spreadable mixed fertilizer
GB306103A (en) Method of producing fertilizers
DE449607C (en) Manufacture of powdered calcium arsenite
DE962340C (en) Process for the preparation of a fertilizer containing ammonium citrate-soluble dicalcium phosphate
US2070581A (en) Guanidine phosphate fertilizer
AT100701B (en) Process for the production of well spreadable, stable phosphate fertilizers by means of nitric acid digestion of raw phosphates.
DE421271C (en) Process for the production of phosphate fertilizer
DE355180C (en) Process for the production of a fertilizer containing phosphate
AT110852B (en) Process for converting ammonium nitrate into a spreadable, non-hygroscopic compound fertilizer.
US2075801A (en) Method of nitrifying superphosphate
DE503645C (en) Process for preserving rubber milk
GB231018A (en) Phospho-nitrogenous fertiliser
AT65382B (en) Process for drying superphosphates.
DE650105C (en) Process for the production of mixed fertilizers containing dicalcium phosphate