DE280969C - - Google Patents

Info

Publication number
DE280969C
DE280969C DENDAT280969D DE280969DA DE280969C DE 280969 C DE280969 C DE 280969C DE NDAT280969 D DENDAT280969 D DE NDAT280969D DE 280969D A DE280969D A DE 280969DA DE 280969 C DE280969 C DE 280969C
Authority
DE
Germany
Prior art keywords
tar
phosphoric acid
technical phosphoric
dilution
vapor
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
DENDAT280969D
Other languages
German (de)
Publication of DE280969C publication Critical patent/DE280969C/de
Active legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Cleaning Or Drying Semiconductors (AREA)

Description

SERLÜt. GEDRUCKT IN DER REICHSDRUCKERELSERLÜt. PRINTED IN THE REICHSDRUCKEREL

Claims (1)

Patent-Anspruch:Patent claim: 2525th Verfahren zum Reinigen von technischer Phosphorsäure, dadurch gekennzeichnet, daß die technische Phosphorsäure nach Verdünnung mit Wasser mit Teer oder Teerölen oder Teerderivaten in Gegenwart eines indifferenten Gases oder Dampfes in guter Bewegung gehalten und erhitzt wird.Process for cleaning technical phosphoric acid, characterized in that, that the technical phosphoric acid after dilution with water with tar or tar oils or tar derivatives in the presence an inert gas or vapor is kept in good motion and heated.
DENDAT280969D Active DE280969C (en)

Publications (1)

Publication Number Publication Date
DE280969C true DE280969C (en)

Family

ID=536749

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT280969D Active DE280969C (en)

Country Status (1)

Country Link
DE (1) DE280969C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637348A (en) * 1969-10-24 1972-01-25 Grace W R & Co Control of postprecipitation from wet process phosphoric acid
US4087512A (en) * 1975-09-26 1978-05-02 Uranium Recovery Corporation Process for removing solid organic material from wet-process phosphoric acid
US5557971A (en) * 1993-12-17 1996-09-24 Mitsubishi Denki Kabushiki Kaisha Pressure sensor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637348A (en) * 1969-10-24 1972-01-25 Grace W R & Co Control of postprecipitation from wet process phosphoric acid
US4087512A (en) * 1975-09-26 1978-05-02 Uranium Recovery Corporation Process for removing solid organic material from wet-process phosphoric acid
US5557971A (en) * 1993-12-17 1996-09-24 Mitsubishi Denki Kabushiki Kaisha Pressure sensor

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