DZ1656A1 - Process for the manufacture of merchant phosphoric acid with a very low cadmium content. - Google Patents

Process for the manufacture of merchant phosphoric acid with a very low cadmium content.

Info

Publication number
DZ1656A1
DZ1656A1 DZ920170A DZ920170A DZ1656A1 DZ 1656 A1 DZ1656 A1 DZ 1656A1 DZ 920170 A DZ920170 A DZ 920170A DZ 920170 A DZ920170 A DZ 920170A DZ 1656 A1 DZ1656 A1 DZ 1656A1
Authority
DZ
Algeria
Prior art keywords
merchant
manufacture
phosphoric acid
cadmium content
low cadmium
Prior art date
Application number
DZ920170A
Other languages
French (fr)
Original Assignee
Cerphos Phosphates Minereaux
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 Cerphos Phosphates Minereaux filed Critical Cerphos Phosphates Minereaux
Application granted granted Critical
Publication of DZ1656A1 publication Critical patent/DZ1656A1/en

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
    • C01B25/2343—Concentration concomitant with purification, e.g. elimination of fluorine

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Luminescent Compositions (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Battery Electrode And Active Subsutance (AREA)
DZ920170A 1992-02-07 1992-12-29 Process for the manufacture of merchant phosphoric acid with a very low cadmium content. DZ1656A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MA22703 1992-02-07

Publications (1)

Publication Number Publication Date
DZ1656A1 true DZ1656A1 (en) 2002-02-17

Family

ID=32322468

Family Applications (1)

Application Number Title Priority Date Filing Date
DZ920170A DZ1656A1 (en) 1992-02-07 1992-12-29 Process for the manufacture of merchant phosphoric acid with a very low cadmium content.

Country Status (6)

Country Link
DZ (1) DZ1656A1 (en)
ES (1) ES2065837B1 (en)
FR (1) FR2687657B1 (en)
JO (1) JO1739B1 (en)
OA (1) OA09773A (en)
TN (1) TNSN92119A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1317183C (en) * 2005-12-23 2007-05-23 中国石化集团南京设计院 Process for producing wet method phosphoric acid by medium low grade phosphorus mine
ATE511553T1 (en) * 2007-03-06 2011-06-15 Ct D Etudes Et De Rech S Des Phosphates Mineraux METHOD FOR PROCESSING SOLIDS CONTAINING CADMIUM
CN102826530A (en) * 2012-09-25 2012-12-19 灵山县骄丰化工有限公司 Method for co-producing calcium hydrogen phosphate and calcium superphosphate by using high calcium siliceous low-graded phosphate ore
FR3117476B1 (en) 2020-12-10 2023-04-21 Ocp Sa INTEGRATED PHOSPHORIC ACID DECADMIATION PROCESS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452770A (en) * 1981-12-14 1984-06-05 United States Gypsum Company Phosphoanhydrite process
NL8601846A (en) * 1986-07-15 1988-02-01 Stamicarbon METHOD FOR REMOVING HEAVY METALS FROM ACID PHOSPHATE-CONTAINING AQUEOUS MEDIA.
IL85751A (en) * 1988-03-16 1991-12-15 Negev Phosphates Ltd Method for the removal of heavy metal ions from phosphoric acid
FR2649391B1 (en) * 1989-07-04 1991-10-31 Pierre Becker PROCESS FOR TREATING PHOSPHORIC ACID TO ELIMINATE SOME HEAVY METALS

Also Published As

Publication number Publication date
OA09773A (en) 1993-11-30
ES2065837A1 (en) 1995-02-16
FR2687657B1 (en) 1996-03-08
ES2065837B1 (en) 1995-10-01
FR2687657A1 (en) 1993-08-27
TNSN92119A1 (en) 1993-06-08
JO1739B1 (en) 1993-06-15

Similar Documents

Publication Publication Date Title
BE881720A (en) STEEL MANUFACTURING PROCESS
FR2686597B1 (en) PROCESS FOR MANUFACTURING A GLASS TUBE, ESPECIALLY FLUORINATED GLASS.
FR2723946B1 (en) PROCESS FOR THE MANUFACTURE OF A DIESTER OF 2,5-FURANE DICARBOXYLIC ACID
FR2669634B1 (en) PROCESS FOR THE MANUFACTURE OF 2-5-FURANE DICARBOXYLIC ACID.
FR2671697B1 (en) PROCESS FOR THE MANUFACTURE OF A COMPOSITION WITH A HIGH ALPHA-LACTALBUMIN CONTENT.
FR2723945B1 (en) PROCESS FOR THE MANUFACTURE OF 2,5-FURANE DICARBOXYLIC ACID
FR2691452B1 (en) Process for reprocessing residual sulfuric acid.
DZ1656A1 (en) Process for the manufacture of merchant phosphoric acid with a very low cadmium content.
FR2707632B1 (en) Process for the preparation of adipic acid or pentenoic acid.
FR2557140B1 (en) PROCESS FOR MANUFACTURING NUT, MAGNETIC STEEL
MA21849A1 (en) PROCESS FOR THE MANUFACTURE OF ALKYL - ETHOXY - CARBOXYLATES.
BE881296A (en) MANUFACTURE OF STEEL BY THE THOMAS PROCESS
FR2576902B1 (en) PROCESS FOR THE MANUFACTURE OF HYDROGENO-SILANES
FR2690462B1 (en) Process for manufacturing copper with very low oxygen content.
BE878932A (en) PROCESS OF MANUFACTURING THE LABELS
FR2513617B1 (en) PROCESS FOR THE SIMULTANEOUS MANUFACTURE OF HIGHLY CONCENTRATED NITRIC ACID AND DILUTED NITRIC ACID
FR2703991B1 (en) PROCESS FOR THE PRODUCTION OF CYCLOHEXYLADIPATES AND ADIPIC ACID.
FR2699827B1 (en) Process for the manufacture of a ski and ski obtained by this process.
FR2615507B1 (en) PROCESS FOR THE MANUFACTURE OF A COMPOST
FR2502114B1 (en) PROCESS FOR THE MANUFACTURE OF PACKAGING
FR2673942B1 (en) PROCESS FOR THE PREPARATION OF (E) -PROPYL-2 PENTENE-2 ACID AND INTERMEDIATE COMPOUNDS.
FR2651243B1 (en) PROCESS FOR THE MANUFACTURE OF FERRITIC STAINLESS STEEL.
FR2682532B1 (en) PROCESS FOR THE MANUFACTURE OF AN ELECTROMAGNETIC TRIGGER WITH AN OVER-MOLDED PERCUTTER AND A TRIGGER THUS OBTAINED.
FR2512800B1 (en) PROCESS FOR THE MANUFACTURE OF PULVERULENT U3O8
FR2589153B1 (en) PROCESS FOR THE MANUFACTURE OF 5-AMINOOROTIC ACID