DE119327C - - Google Patents

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Publication number
DE119327C
DE119327C DENDAT119327D DE119327DA DE119327C DE 119327 C DE119327 C DE 119327C DE NDAT119327 D DENDAT119327 D DE NDAT119327D DE 119327D A DE119327D A DE 119327DA DE 119327 C DE119327 C DE 119327C
Authority
DE
Germany
Prior art keywords
lime
phosphate
calcium
phosphoric acid
solution
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
DENDAT119327D
Other languages
German (de)
Publication of DE119327C publication Critical patent/DE119327C/de
Active legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
    • C05B11/04—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid
    • C05B11/12—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes using mineral acid using aqueous hydrochloric acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)

Description

BERLIN, GEDRUCKT IN DER REICHSDRUCKERELBERLIN, PRINTED IN THE REICHSDRUCKEREL

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Gewinnung von zweibasischem phosphorsaurem Kalk aus natürlichen, calciumcarbonatreichen Phosphaten, darin bestehend, dafs die 'durch vollständige Auflösung der Phosphate in einer Säure, deren Calciumsalz löslich ist, insbesondere in Salzsäure hergestellte und vom Rückstand befreite, im Wesentlichen das betreffende lösliche Kalksalz (Chlorcalcium), Monocalciumphosphat und freie Phosphorsäure enthaltende Lösung mit so viel von dem natürlichen calciumcarbonatreichen Phosphat in Pulverform versetzt wird, dafs nahezu alle Phosphorsäure und das Monocalciumphosphat als zweibasisches Calciumphosphat gefällt wird, worauf die vollständige Neutralisation der Lösung durch Zusatz von Kalkmilch bis zur alkalischen Reaction bewirkt und endlich der Niederschlag von der Kalklösung durch Auswaschen befreit wird.Process for the extraction of dibasic phosphoric acid lime from natural, calcium carbonate-rich Phosphates, consisting in the fact that the 'by complete dissolution of the Phosphates in an acid, the calcium salt of which is soluble, especially in hydrochloric acid and freed from the residue, essentially the relevant soluble lime salt (calcium chloride), Solution containing monocalcium phosphate and free phosphoric acid with so much of that natural calcium carbonate-rich phosphate is added in powder form, so that almost all of them Phosphoric acid and monocalcium phosphate are precipitated as dibasic calcium phosphate, whereupon the complete neutralization of the solution by adding milk of lime up to alkaline reaction and finally the precipitate of the lime solution by washing out is released.
DENDAT119327D Active DE119327C (en)

Publications (1)

Publication Number Publication Date
DE119327C true DE119327C (en)

Family

ID=388468

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT119327D Active DE119327C (en)

Country Status (1)

Country Link
DE (1) DE119327C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6680120B1 (en) 1999-01-27 2004-01-20 Nexans Baked enamel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6680120B1 (en) 1999-01-27 2004-01-20 Nexans Baked enamel

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