GB1056125A - Palladium salts of condensed phosphoric acid - Google Patents

Palladium salts of condensed phosphoric acid

Info

Publication number
GB1056125A
GB1056125A GB320064A GB320064A GB1056125A GB 1056125 A GB1056125 A GB 1056125A GB 320064 A GB320064 A GB 320064A GB 320064 A GB320064 A GB 320064A GB 1056125 A GB1056125 A GB 1056125A
Authority
GB
United Kingdom
Prior art keywords
salts
palladium
phosphoric acid
condensed phosphoric
hydrogen
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
GB320064A
Inventor
John Stewart Campbell
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB320064A priority Critical patent/GB1056125A/en
Publication of GB1056125A publication Critical patent/GB1056125A/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
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/01—Hydrogen peroxide
    • C01B15/029—Preparation from hydrogen and oxygen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/14—Phosphorus; Compounds thereof
    • B01J27/185—Phosphorus; Compounds thereof with iron group metals or platinum group metals
    • B01J27/1856—Phosphorus; Compounds thereof with iron group metals or platinum group metals with platinum group metals
    • 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

Abstract

Palladium metal is obtained from palladium salts of a condensed phosphoric acid by reduction with hydrogen in aqueous suspension.ALSO:Palladium salts of a condensed phosphoric acid having a polymerization number of from 2-14 are prepared by heating a halide, nitrate or sulphate of palladium and the condensed phosphoric acid or a precursor thereof, for example ammonium salts or hydrated monomeric acids such as orthophosphoric acid. The salts may be reduced to palladium suitable for use as a catalyst with hydrogen in aqueous suspension. The salts may be used as catalyst in a process for producing hydrogen peroxide by contacting hydrogen and oxygen in the presence of liquid water. The salts may be in colloidal form or in comminuted form and the reaction is preferably carried out in acid medium. An oxygen-containing organic compound may be present, e.g. an alcohol, aldehyde, ketone, ether, ester, amide an oxygen-containing amine or carboxylic acid. A hydrogen peroxide stabilizer as defined in Specification 1,056,121, may be present and the temperature and pressure conditions are described in Specification 1,041,045. The hydrogen peroxide may be used directly for an oxidation process or the catalyst may be separated and the resulting solution evaporated.
GB320064A 1964-01-24 1964-01-24 Palladium salts of condensed phosphoric acid Expired GB1056125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB320064A GB1056125A (en) 1964-01-24 1964-01-24 Palladium salts of condensed phosphoric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB320064A GB1056125A (en) 1964-01-24 1964-01-24 Palladium salts of condensed phosphoric acid

Publications (1)

Publication Number Publication Date
GB1056125A true GB1056125A (en) 1967-01-25

Family

ID=9753844

Family Applications (1)

Application Number Title Priority Date Filing Date
GB320064A Expired GB1056125A (en) 1964-01-24 1964-01-24 Palladium salts of condensed phosphoric acid

Country Status (1)

Country Link
GB (1) GB1056125A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992015520A1 (en) * 1991-03-05 1992-09-17 Solvay Interox Direct synthesis of hydrogen peroxyde by heterogeneous catalysis, catalyst for said synthesis, and method of preparation of said catalyst
WO2002092502A1 (en) * 2001-05-17 2002-11-21 Eni S.P.A. Direct synthesis of hydrogen peroxide in a multicomponent solvent system
US7288500B2 (en) 2005-08-31 2007-10-30 Headwaters Technology Innovation, Llc Selective hydrogenation of nitro groups of halonitro aromatic compounds
US7718710B2 (en) 2006-03-17 2010-05-18 Headwaters Technology Innovation, Llc Stable concentrated metal colloids and methods of making same
US7892299B2 (en) 2005-09-15 2011-02-22 Headwaters Technology Innovation, Llc Methods of manufacturing fuel cell electrodes incorporating highly dispersed nanoparticle catalysts
US7935652B2 (en) 2005-09-15 2011-05-03 Headwaters Technology Innovation, Llc. Supported nanoparticle catalysts manufactured using caged catalyst atoms

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992015520A1 (en) * 1991-03-05 1992-09-17 Solvay Interox Direct synthesis of hydrogen peroxyde by heterogeneous catalysis, catalyst for said synthesis, and method of preparation of said catalyst
BE1004650A3 (en) * 1991-03-05 1993-01-05 Interox Internat Sa Summary direct hydrogen peroxide catalyzed heterogeneous catalyst for synthesis thereof and method of preparation thereof catalyst.
WO2002092502A1 (en) * 2001-05-17 2002-11-21 Eni S.P.A. Direct synthesis of hydrogen peroxide in a multicomponent solvent system
US7105142B2 (en) 2001-05-17 2006-09-12 Eni S.P.A. Direct synthesis of hydrogen peroxide in a multicomponent solvent system
US7288500B2 (en) 2005-08-31 2007-10-30 Headwaters Technology Innovation, Llc Selective hydrogenation of nitro groups of halonitro aromatic compounds
US7425520B2 (en) 2005-08-31 2008-09-16 Headwaters Technology Innovation, Llc Catalyst for selective hydrogenation of nitro groups of halonitro aromatic compounds
US7892299B2 (en) 2005-09-15 2011-02-22 Headwaters Technology Innovation, Llc Methods of manufacturing fuel cell electrodes incorporating highly dispersed nanoparticle catalysts
US7935652B2 (en) 2005-09-15 2011-05-03 Headwaters Technology Innovation, Llc. Supported nanoparticle catalysts manufactured using caged catalyst atoms
US7718710B2 (en) 2006-03-17 2010-05-18 Headwaters Technology Innovation, Llc Stable concentrated metal colloids and methods of making same

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