OA04431A - Procédé et dispositif de purification d'acide phosphorique concentré. - Google Patents

Procédé et dispositif de purification d'acide phosphorique concentré.

Info

Publication number
OA04431A
OA04431A OA54945A OA54945A OA04431A OA 04431 A OA04431 A OA 04431A OA 54945 A OA54945 A OA 54945A OA 54945 A OA54945 A OA 54945A OA 04431 A OA04431 A OA 04431A
Authority
OA
OAPI
Prior art keywords
phosphoric acid
concentrated phosphoric
purifying concentrated
purifying
acid
Prior art date
Application number
OA54945A
Other languages
English (en)
French (fr)
Original Assignee
Spie Batignolles
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 Spie Batignolles filed Critical Spie Batignolles
Publication of OA04431A publication Critical patent/OA04431A/xx

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
    • C01B25/235—Clarification; Stabilisation to prevent post-precipitation of dissolved impurities

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
OA54945A 1972-06-29 1973-06-22 Procédé et dispositif de purification d'acide phosphorique concentré. OA04431A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7223470A FR2190726A1 (en) 1972-06-29 1972-06-29 Concd phosphoric acid purifn - by removing suspended solids in two stages before and after concn

Publications (1)

Publication Number Publication Date
OA04431A true OA04431A (fr) 1980-03-15

Family

ID=9101030

Family Applications (1)

Application Number Title Priority Date Filing Date
OA54945A OA04431A (fr) 1972-06-29 1973-06-22 Procédé et dispositif de purification d'acide phosphorique concentré.

Country Status (2)

Country Link
FR (1) FR2190726A1 (enExample)
OA (1) OA04431A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104480487B (zh) * 2014-11-21 2016-12-07 贵州开磷集团股份有限公司 一种清洗湿法磷酸浓缩系统用水封闭循环利用方法
CN107485889A (zh) * 2017-09-08 2017-12-19 瓮福达州化工有限责任公司 一种湿法磷酸净化萃取系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936888A (en) * 1958-07-07 1960-05-17 Int Minerals & Chem Corp Production of clarified acidic phosphatic solutions
FR1334532A (fr) * 1962-06-29 1963-08-09 Pechiney Saint Gobain Procédé pour le conditionnement continu d'acide phosphorique brut

Also Published As

Publication number Publication date
FR2190726B1 (enExample) 1975-06-13
FR2190726A1 (en) 1974-02-01

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