GB962182A - Improved metal phosphates and method of making same - Google Patents

Improved metal phosphates and method of making same

Info

Publication number
GB962182A
GB962182A GB1673462A GB1673462A GB962182A GB 962182 A GB962182 A GB 962182A GB 1673462 A GB1673462 A GB 1673462A GB 1673462 A GB1673462 A GB 1673462A GB 962182 A GB962182 A GB 962182A
Authority
GB
United Kingdom
Prior art keywords
crystals
making same
metal phosphates
improved metal
orthophosphates
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
GB1673462A
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.)
SETSO HIGASHI
Original Assignee
SETSO HIGASHI
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 SETSO HIGASHI filed Critical SETSO HIGASHI
Priority to GB1673462A priority Critical patent/GB962182A/en
Publication of GB962182A publication Critical patent/GB962182A/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
    • C01B25/265—General methods for obtaining phosphates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Dental Preparations (AREA)

Abstract

Calcium, magnesium barium, zinc, iron and aluminium orthophosphates are prepared by treating salts or oxides of these metals with phosphoric acid (which may be formed in situ) first at a temperature below 30 DEG C. and pH 1.5-2.5, then at above 60 DEG C. and pH 2.5-3.5, separating the crystals by hot filtration and then heating to dehydrate said crystals. The crystals obtained before dehydration are flat plate-like crystals of the respective tetrahydrated orthophosphates, the final dehydrated product may be used as a dental setting compound.
GB1673462A 1962-05-01 1962-05-01 Improved metal phosphates and method of making same Expired GB962182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1673462A GB962182A (en) 1962-05-01 1962-05-01 Improved metal phosphates and method of making same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1673462A GB962182A (en) 1962-05-01 1962-05-01 Improved metal phosphates and method of making same

Publications (1)

Publication Number Publication Date
GB962182A true GB962182A (en) 1964-07-01

Family

ID=10082694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1673462A Expired GB962182A (en) 1962-05-01 1962-05-01 Improved metal phosphates and method of making same

Country Status (1)

Country Link
GB (1) GB962182A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4139599A (en) * 1973-01-11 1979-02-13 Colgate Palmolive Company Process for preparing dicalcium phosphate dihydrate having a portion of the calcium displaced by divalent metal ion
EP0009717A1 (en) * 1978-09-28 1980-04-16 Hoechst Aktiengesellschaft Process for the production of particulate zinc phosphate
US4207301A (en) * 1978-03-14 1980-06-10 Alexeeva Olga V Process for producing zinc phosphate
US4891198A (en) * 1986-08-07 1990-01-02 General Foods Corporation Preparation of tricalcium phosphate
WO2009009629A1 (en) * 2007-07-10 2009-01-15 Wyeth Process for producing aluminum phosphate
DE102007058674A1 (en) 2007-12-06 2009-07-02 Süd-Chemie AG Nanoparticulate composition and process for its preparation

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4139599A (en) * 1973-01-11 1979-02-13 Colgate Palmolive Company Process for preparing dicalcium phosphate dihydrate having a portion of the calcium displaced by divalent metal ion
US4207301A (en) * 1978-03-14 1980-06-10 Alexeeva Olga V Process for producing zinc phosphate
EP0009717A1 (en) * 1978-09-28 1980-04-16 Hoechst Aktiengesellschaft Process for the production of particulate zinc phosphate
US4891198A (en) * 1986-08-07 1990-01-02 General Foods Corporation Preparation of tricalcium phosphate
WO2009009629A1 (en) * 2007-07-10 2009-01-15 Wyeth Process for producing aluminum phosphate
RU2480403C2 (en) * 2007-07-10 2013-04-27 Вайет Ллс Process of producing aluminium phosphate
CN101730660B (en) * 2007-07-10 2013-06-05 惠氏有限责任公司 Process for producing aluminum phosphate
US8540955B2 (en) 2007-07-10 2013-09-24 Wyeth Llc Process for producing aluminum phosphate
EP3301074A1 (en) * 2007-07-10 2018-04-04 Wyeth LLC Process for producing aluminum phosphate
DE102007058674A1 (en) 2007-12-06 2009-07-02 Süd-Chemie AG Nanoparticulate composition and process for its preparation

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