ES473824A1 - Treatment of phosphoric acid - Google Patents

Treatment of phosphoric acid

Info

Publication number
ES473824A1
ES473824A1 ES473824A ES473824A ES473824A1 ES 473824 A1 ES473824 A1 ES 473824A1 ES 473824 A ES473824 A ES 473824A ES 473824 A ES473824 A ES 473824A ES 473824 A1 ES473824 A1 ES 473824A1
Authority
ES
Spain
Prior art keywords
phosphoric acid
treatment
pptd
concn
temp
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
ES473824A
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.)
TRIOMF FERTILIZER Ltd
Original Assignee
TRIOMF FERTILIZER Ltd
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 TRIOMF FERTILIZER Ltd filed Critical TRIOMF FERTILIZER Ltd
Publication of ES473824A1 publication Critical patent/ES473824A1/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
    • C01B25/24—Condensed phosphoric acids
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • C05B1/02—Superphosphates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Fertilizers (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

Phosphoric acid contg. at least one of the ions Mg, Fe or Al is purified by being heated under conditions of temp., pressure, time and concn. such that the impurities (and when Mg is the major constituent, >60% of the Mg) are pptd. as metal pyrophosphates.
ES473824A 1977-09-29 1978-09-29 Treatment of phosphoric acid Expired ES473824A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA00775833A ZA775833B (en) 1977-09-29 1977-09-29 Treatment of phosphoric acid

Publications (1)

Publication Number Publication Date
ES473824A1 true ES473824A1 (en) 1979-05-01

Family

ID=25572089

Family Applications (1)

Application Number Title Priority Date Filing Date
ES473824A Expired ES473824A1 (en) 1977-09-29 1978-09-29 Treatment of phosphoric acid

Country Status (12)

Country Link
JP (1) JPS5919046B2 (en)
AR (1) AR218937A1 (en)
AU (1) AU522778B2 (en)
BR (1) BR7806482A (en)
CA (1) CA1101188A (en)
ES (1) ES473824A1 (en)
FR (1) FR2404599A1 (en)
IL (1) IL55636A0 (en)
IN (1) IN150188B (en)
MX (1) MX5585E (en)
NZ (1) NZ188536A (en)
ZA (1) ZA775833B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4409194A (en) * 1978-12-14 1983-10-11 Stauffer Chemical Company Method of separating magnesium from wet process superphosphoric acid
DE3325862A1 (en) * 1983-07-18 1985-01-31 Hoechst Ag, 6230 Frankfurt METHOD AND DEVICE FOR REMOVING ORGANIC IMPURITIES FROM WET PROCESS PHOSPHORIC ACID
JPS63210005A (en) * 1987-02-24 1988-08-31 Matsushita Electric Works Ltd Regeneration of used phosphoric acid
JPH0338039U (en) * 1989-08-23 1991-04-12

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5388691A (en) * 1977-01-14 1978-08-04 Central Glass Co Ltd Phosphoric acid decoloring method

Also Published As

Publication number Publication date
MX5585E (en) 1983-10-28
CA1101188A (en) 1981-05-19
ZA775833B (en) 1978-11-29
IL55636A0 (en) 1978-12-17
NZ188536A (en) 1980-11-28
AU4030378A (en) 1980-04-03
AR218937A1 (en) 1980-07-15
JPS5488897A (en) 1979-07-14
JPS5919046B2 (en) 1984-05-02
BR7806482A (en) 1979-05-02
AU522778B2 (en) 1982-06-24
IN150188B (en) 1982-08-14
FR2404599B1 (en) 1981-12-11
FR2404599A1 (en) 1979-04-27

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990503