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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Removal Of Specific Substances (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
FI58767C (en) 1981-04-10
GB1438269A (en) 1976-06-03
NO138526C (en) 1978-09-20
DE2511345A1 (en) 1975-09-25
NO138526B (en) 1978-06-12
JPS5440075B2 (en) 1979-12-01
NL167391B (en) 1981-07-16
JPS50131892A (en) 1975-10-18
FR2264774B1 (en) 1977-06-17
IT1036884B (en) 1979-10-30
YU36663B (en) 1984-08-31
MX3087E (en) 1980-03-27
FI750803A7 (en) 1975-09-20
NL167391C (en) 1981-12-16
FR2264774A1 (en) 1975-10-17
YU60675A (en) 1982-06-18
IL46740A0 (en) 1975-05-22
DE2511345B2 (en) 1977-02-17
BE826810A (en) 1975-09-18
ZA751297B (en) 1976-01-28
SE393361B (en) 1977-05-09
IL46740A (en) 1977-07-31
NL7503004A (en) 1975-09-23
SE7503010L (en) 1975-09-22
FI58767B (en) 1980-12-31
NO750908L (en) 1975-09-22

Similar Documents

Publication Publication Date Title
AU3022577A (en) Catalyst for production of ammonia
ES435760A1 (en) Purifying phosphoric acid
FR2276868A1 (en) GRANULATION PROCESS, ESPECIALLY FOR FERTILIZERS
ES401666A1 (en) Process for producing amino methylene phosphonic acids
GB1504043A (en) Process for the purification of epoxide compounds
ES443349A1 (en) 1-Alkyl-2-(phenoxymethyl)-5-nitro-imidazoles and process for their manufacture
RO63769A (en) PROCESS FOR PURIFYING ETHYLPHENOLS
GB1484765A (en) Process for purifying cyanuric acid
GB1556478A (en) Process for the purification of phosphoric acid
ZA756199B (en) Crude cyanuric acid purification
DK130279B (en) Process for purifying gases containing gaseous mercury.
ES410785A1 (en) Chenodeoxycholic acid
PH11819A (en) Purification of phosphoric acid
TR18545A (en) CURED PROCESS FOR HIGH YIELD PURE COPPER FROM COPPER AMMONIUM SUELFITS
ES294651A1 (en) Procedure for the production of 3-hydroxy-1,3 - dihydro-2H-1,4-benzodiazepin - 2 - onas (Machine-translation by Google Translate, not legally binding)
GB1484731A (en) Process for purifying crude cyanuric acid
DK134899B (en) Process for the preparation of calcium phosphate-containing phosphoric acid.
ES426893A1 (en) Process for 11a-dehalogenation of 11a-halotetracyclines
ES310937A1 (en) Concentration of phosphoric acids
ES435584A1 (en) Process for the preparation of n, n ', n "- tricclohexil-n, n', n" -trimethyltryamide of phosphoric acid. (Machine-translation by Google Translate, not legally binding)
AU448507B2 (en) A process for purifying gases from mercury compounds
ES2004876A6 (en) Manufacture of compound
ES292054A1 (en) Procedure for the preparation of a derivative of benzotiadiacin, hypotensive action (Machine-translation by Google Translate, not legally binding)
ES306639A1 (en) Procedure for purification of concentrated sulfuric acid. (Machine-translation by Google Translate, not legally binding)
ES286241A1 (en) A procedure for the manufacture of benzodiazepinic derivatives (Machine-translation by Google Translate, not legally binding)