GB1401082A - Process for preparing powder mixtures and the powder mixtures formed thereby - Google Patents

Process for preparing powder mixtures and the powder mixtures formed thereby

Info

Publication number
GB1401082A
GB1401082A GB358075A GB358075A GB1401082A GB 1401082 A GB1401082 A GB 1401082A GB 358075 A GB358075 A GB 358075A GB 358075 A GB358075 A GB 358075A GB 1401082 A GB1401082 A GB 1401082A
Authority
GB
United Kingdom
Prior art keywords
powder mixtures
ppt
slurry
chosen
reducing
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
GB358075A
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.)
OI Glass Inc
Original Assignee
Owens Illinois Inc
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 Owens Illinois Inc filed Critical Owens Illinois Inc
Publication of GB1401082A publication Critical patent/GB1401082A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

1401082 Powder mixtures OWENS-ILLINOIS Inc 8 May 1972 [6 May 1971] 3580/75 Divided out of 1401081 Heading C7D A homogeneous finely divided powder mixture of Au, Ag and at least one metal (M) chosen from Pd, Rh, Ru, Ir, In, Pt, Cu, Ni, is produced by forming a soluble salt solution of M and Ag, adding a reducing agent to ppt M and Ag and forming a slurry of the ppt, adding a gold salt solution and reducing this solution to ppt Au into the slurry. Several reducing agents are given for precipitating M and Ag, of which hypophosphorous acid is preferred. The reducing agent to precipitate Au is chosen from Na 2 SO 3 , hydroquinone, hydrazine sulphate, H 2 SO 3 ,Zn dust or FeSO 4 . The powder produced has a size of <5Á and usually has at least some alloying of M and Ag, with Au dispersed throughout.
GB358075A 1971-05-06 1972-05-08 Process for preparing powder mixtures and the powder mixtures formed thereby Expired GB1401082A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14100671A 1971-05-06 1971-05-06

Publications (1)

Publication Number Publication Date
GB1401082A true GB1401082A (en) 1975-07-16

Family

ID=22493733

Family Applications (2)

Application Number Title Priority Date Filing Date
GB358075A Expired GB1401082A (en) 1971-05-06 1972-05-08 Process for preparing powder mixtures and the powder mixtures formed thereby
GB2130472A Expired GB1401081A (en) 1971-05-06 1972-05-08 Powder mixture of metal silver and gold and process for making same

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2130472A Expired GB1401081A (en) 1971-05-06 1972-05-08 Powder mixture of metal silver and gold and process for making same

Country Status (3)

Country Link
US (1) US3717453A (en)
JP (1) JPS5329672B1 (en)
GB (2) GB1401082A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865742A (en) * 1971-05-06 1975-02-11 Owens Illinois Inc Resistor Compositions
DE2330413A1 (en) * 1973-06-15 1975-01-09 Demetron METHOD FOR MANUFACTURING PLAET-SHAPED GOLD POWDER
US4113467A (en) * 1977-02-22 1978-09-12 Harrington Douglas S Process for recovering gold
GR852069B (en) * 1984-08-29 1985-12-30 Du Pont
US5188660A (en) * 1991-10-16 1993-02-23 E. I. Du Pont De Nemours And Company Process for making finely divided particles of silver metals

Also Published As

Publication number Publication date
US3717453A (en) 1973-02-20
JPS5329672B1 (en) 1978-08-22
GB1401081A (en) 1975-07-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee