ES435760A1 - Purifying phosphoric acid - Google Patents

Purifying phosphoric acid

Info

Publication number
ES435760A1
ES435760A1 ES435760A ES435760A ES435760A1 ES 435760 A1 ES435760 A1 ES 435760A1 ES 435760 A ES435760 A ES 435760A ES 435760 A ES435760 A ES 435760A ES 435760 A1 ES435760 A1 ES 435760A1
Authority
ES
Spain
Prior art keywords
phosphoric acid
urea
phase
precipitates
purifying phosphoric
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.)
Expired
Application number
ES435760A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Azote et Produits Chimiques SA
Original Assignee
Azote et Produits Chimiques SA
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 Azote et Produits Chimiques SA filed Critical Azote et Produits Chimiques SA
Publication of ES435760A1 publication Critical patent/ES435760A1/en
Expired 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)
  • Fertilizers (AREA)
  • Removal Of Specific Substances (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

Wet process phosphoric acid purification procedure characterized by the fact that: - in a first phase, the wet phosphoric acid reacts with urea and crystallized urea phosphate precipitates, which separates from the main waters. - in a second phase, the urea phosphate is reacted with nitric acid and urea nitrate precipitates, which is separated from the purified phosphoric acid. (Machine-translation by Google Translate, not legally binding)
ES435760A 1974-03-19 1975-03-18 Purifying phosphoric acid Expired ES435760A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7409158A FR2264774B1 (en) 1974-03-19 1974-03-19

Publications (1)

Publication Number Publication Date
ES435760A1 true ES435760A1 (en) 1976-12-16

Family

ID=9136486

Family Applications (1)

Application Number Title Priority Date Filing Date
ES435760A Expired ES435760A1 (en) 1974-03-19 1975-03-18 Purifying phosphoric acid

Country Status (14)

Country Link
JP (1) JPS5440075B2 (en)
BE (1) BE826810A (en)
ES (1) ES435760A1 (en)
FI (1) FI58767C (en)
FR (1) FR2264774B1 (en)
GB (1) GB1438269A (en)
IL (1) IL46740A (en)
IT (1) IT1036884B (en)
MX (1) MX3087E (en)
NL (1) NL167391C (en)
NO (1) NO138526C (en)
SE (2) SE393361B (en)
YU (1) YU36663B (en)
ZA (1) ZA751297B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES482524A1 (en) * 1979-07-17 1980-04-01 Cros Sa Food-pharmaceutical quality phosphoric acid preparation - by treating urea phosphate with nitric acid, then with nitrous acid, passing air and reducing nitrate with saccharide(s) or formic acid
TW421606B (en) * 1995-06-21 2001-02-11 Mohamed Takhim Method of purifying substances by extraction from a liquid medium
WO2008046428A1 (en) * 2006-10-18 2008-04-24 Fekria Ahmed Fathi Kassem New method for cheap production of urea phosphate
CN103170221A (en) * 2013-04-18 2013-06-26 瓮福（集团）有限责任公司 Method and device for exhaust gas treatment by wet-process phosphoric acid reaction
CN104311181B (en) * 2014-09-19 2017-02-08 贵州大学 Preparation method of special fertilizer for honey peaches
CN107473990A (en) * 2017-07-24 2017-12-15 湖北三宁化工股份有限公司 A kind of urea phosphate mother liquor water soluble fertilizer and preparation method
USD943707S1 (en) * 2019-10-25 2022-02-15 Tianjin Bright Sight Commerce Co., Ltd. Filter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE754920A (en) * 1969-08-22 1971-02-01 Hachez Pierre PROCESS FOR PURIFYING PHOSPHORIC ACID PRODUCED BY WET METHODS AND A POTASSIUM-BASED PHOSPHATE BY-PRODUCT THAT CAN BE USED AS A FERTILIZER

Also Published As

Publication number Publication date
NL167391C (en) 1981-12-16
IT1036884B (en) 1979-10-30
JPS5440075B2 (en) 1979-12-01
NL167391B (en) 1981-07-16
YU60675A (en) 1982-06-18
MX3087E (en) 1980-03-27
SE7503010L (en) 1975-09-22
BE826810A (en) 1975-09-18
FI58767C (en) 1981-04-10
FI750803A (en) 1975-09-20
GB1438269A (en) 1976-06-03
NO138526B (en) 1978-06-12
YU36663B (en) 1984-08-31
SE393361B (en) 1977-05-09
FR2264774A1 (en) 1975-10-17
NL7503004A (en) 1975-09-23
FI58767B (en) 1980-12-31
JPS50131892A (en) 1975-10-18
FR2264774B1 (en) 1977-06-17
NO138526C (en) 1978-09-20
IL46740A0 (en) 1975-05-22
ZA751297B (en) 1976-01-28
DE2511345A1 (en) 1975-09-25
IL46740A (en) 1977-07-31
DE2511345B2 (en) 1977-02-17
NO750908L (en) 1975-09-22

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