DE27924C - Process for the preparation of superphosphates with a variable phosphoric acid content from slags of the basic iron dephosphorization process and from natural phosphates - Google Patents

Process for the preparation of superphosphates with a variable phosphoric acid content from slags of the basic iron dephosphorization process and from natural phosphates

Info

Publication number
DE27924C
DE27924C DENDAT27924D DE27924DA DE27924C DE 27924 C DE27924 C DE 27924C DE NDAT27924 D DENDAT27924 D DE NDAT27924D DE 27924D A DE27924D A DE 27924DA DE 27924 C DE27924 C DE 27924C
Authority
DE
Germany
Prior art keywords
phosphoric acid
slags
superphosphates
variable
preparation
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.)
Active
Application number
DENDAT27924D
Other languages
German (de)
Original Assignee
R. SCHLIWA in Dortmund
Publication of DE27924C publication Critical patent/DE27924C/en
Active legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMTPATENT OFFICE

1. Die gröblich gepulverten Rohmaterialien (Schlacken und natürliche Phosphate) werden mit so viel englischer Schwefelsäure gemischt, dafs deren gesammte Phosphorsäure in in Wasser löslicher Form frei wird. Die Masse wird nun mit wenig Wasser ausgelaugt und die verdünnte Phosphorsäure vom Rückstand getrennt.1. The coarsely powdered raw materials (slags and natural phosphates) will be mixed with so much English sulfuric acid that all of its phosphoric acid is in water soluble form becomes free. The mass is now leached with a little water and the diluted Phosphoric acid separated from the residue.

2. Aus dem Rückstande wird Eisen und Mangan durch Behandlung mit Königswasser und Auswaschen der Chlorverbindungen mit Wasser entfernt. Die nunmehr eisen- und manganfreie mineralische Masse wird je nach Bedürfnifs mit der unter 1. gewonnenen Phosphorsäure wieder gemischt und getrocknet.2. The residue is converted into iron and manganese by treatment with aqua regia and washing out the chlorine compounds with water. The now iron and Manganese-free mineral mass is mixed with the phosphoric acid obtained under 1 mixed again and dried.

Claims (1)

P ATEN T-AN SPRUCH:P ATEN T AN APPLICATION: Die aus dem Verfahren unter 1. resultirende Phosphorsäure, von dem Rückstand getrennt, wird, nachdem Eisen und Mangan inzwischen aus letzterem durch Behandeln mit Königswasser entfernt worden ist, mit ihm je nach Bedarf, d. h. je nachdem man ein höher- oder minder hochprocentiges Superphosphat herzustellen beabsichtigt, wieder vereinigt, gemischt und getrocknet.The phosphoric acid resulting from the process under 1., separated from the residue, is after iron and manganese meanwhile from the latter by treatment with aqua regia has been removed with it as needed, d. H. depending on whether you have a higher or Intends to produce less high-percentage superphosphate, reunited, mixed and dried.
DENDAT27924D Process for the preparation of superphosphates with a variable phosphoric acid content from slags of the basic iron dephosphorization process and from natural phosphates Active DE27924C (en)

Publications (1)

Publication Number Publication Date
DE27924C true DE27924C (en)

Family

ID=304198

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT27924D Active DE27924C (en) Process for the preparation of superphosphates with a variable phosphoric acid content from slags of the basic iron dephosphorization process and from natural phosphates

Country Status (1)

Country Link
DE (1) DE27924C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215506B (en) * 1964-06-05 1966-04-28 Elbe Kamera Gmbh Arrangement of several reflecting surfaces or prisms for light measurement, especially for film recording or reproduction cameras
DE1228918B (en) * 1965-01-08 1966-11-17 Elbe Kamera Gmbh SLR viewfinder system for photographic cameras

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215506B (en) * 1964-06-05 1966-04-28 Elbe Kamera Gmbh Arrangement of several reflecting surfaces or prisms for light measurement, especially for film recording or reproduction cameras
DE1228918B (en) * 1965-01-08 1966-11-17 Elbe Kamera Gmbh SLR viewfinder system for photographic cameras

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