CA1103887A - Preparation of purified or condensed phosphoric acid - Google Patents

Preparation of purified or condensed phosphoric acid

Info

Publication number
CA1103887A
CA1103887A CA300,997A CA300997A CA1103887A CA 1103887 A CA1103887 A CA 1103887A CA 300997 A CA300997 A CA 300997A CA 1103887 A CA1103887 A CA 1103887A
Authority
CA
Canada
Prior art keywords
acid
concentrated
evaporator
diluted
phosphoric acid
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
CA300,997A
Other languages
English (en)
French (fr)
Inventor
Arthur Wilson
Edward J. Lowe
Michael W. Minshall
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.)
Solvay Solutions UK Ltd
Original Assignee
Albright and Wilson 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 Albright and Wilson Ltd filed Critical Albright and Wilson Ltd
Application granted granted Critical
Publication of CA1103887A publication Critical patent/CA1103887A/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
    • C01B25/26—Phosphates
    • C01B25/28—Ammonium phosphates
    • 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
    • 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
    • C01B25/26—Phosphates
    • C01B25/265—General methods for obtaining phosphates
    • 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
    • C01B25/26—Phosphates
    • C01B25/38—Condensed phosphates
    • C01B25/40—Polyphosphates
    • C01B25/405—Polyphosphates of ammonium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
CA300,997A 1977-04-12 1978-04-12 Preparation of purified or condensed phosphoric acid Expired CA1103887A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB15135/77A GB1601474A (en) 1977-04-12 1977-04-12 Purification of wet process phosphoric acid
GB15135/77 1977-04-12

Publications (1)

Publication Number Publication Date
CA1103887A true CA1103887A (en) 1981-06-30

Family

ID=10053666

Family Applications (1)

Application Number Title Priority Date Filing Date
CA300,997A Expired CA1103887A (en) 1977-04-12 1978-04-12 Preparation of purified or condensed phosphoric acid

Country Status (14)

Country Link
JP (1) JPS53128595A (it)
AU (1) AU518507B2 (it)
BE (1) BE865908A (it)
CA (1) CA1103887A (it)
DE (1) DE2815880A1 (it)
ES (1) ES468736A1 (it)
FR (1) FR2387188A1 (it)
GB (1) GB1601474A (it)
IL (1) IL54496A (it)
IN (1) IN149004B (it)
IT (1) IT1156955B (it)
NL (1) NL7803876A (it)
SE (1) SE7804144L (it)
ZA (1) ZA782113B (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1128592A (en) * 1980-01-15 1982-07-27 Michio Ikura Method and apparatus for concentrating a liquid
PH21240A (en) * 1980-05-21 1987-08-21 Albright & Wilson Purification process
JPS63210005A (ja) * 1987-02-24 1988-08-31 Matsushita Electric Works Ltd セラミック基板の表面を粗化する方法
US6861039B1 (en) * 1998-12-28 2005-03-01 Toyo Boeski Kabushiki Kaisha Method for purification of phosphoric acid high purity polyphosphoric acid

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1336143A (fr) * 1962-06-15 1963-08-30 Collier Carbon & Chemical Co Procédé de traitement d'acide phosphorique obtenu par voie humide pour l'obtention de dérivés phosphorés et produits en résultant
GB1081892A (en) * 1964-07-21 1967-09-06 Occidental Res & Eng Improvements relating to the production of phosphoric acids
FR1468920A (fr) * 1965-11-16 1967-02-10 Occidental Res & Eng Perfectionnements aux procédés pour la production d'acides phosphoriques à haute teneur en anhydride
FR1545773A (fr) * 1966-09-27 1968-11-15 Electric Reduction Co Procédé et appareil de purification et de concentration d'acide phosphorique
US3777008A (en) * 1969-09-24 1973-12-04 Cominco Ltd Solid polyphosphoric acid

Also Published As

Publication number Publication date
IL54496A (en) 1980-09-16
IT1156955B (it) 1987-02-04
IN149004B (it) 1981-08-15
ZA782113B (en) 1980-02-27
AU518507B2 (en) 1981-10-01
DE2815880A1 (de) 1978-10-26
AU3496778A (en) 1979-10-18
IL54496A0 (en) 1978-07-31
IT7867813A0 (it) 1978-04-12
GB1601474A (en) 1981-10-28
JPS53128595A (en) 1978-11-09
FR2387188B1 (it) 1980-08-08
ES468736A1 (es) 1980-01-01
BE865908A (fr) 1978-10-12
FR2387188A1 (fr) 1978-11-10
SE7804144L (sv) 1978-10-13
NL7803876A (nl) 1978-10-16

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Legal Events

Date Code Title Description
MKEX Expiry