GB1195887A - Method of Purifying Contaminated Plating Solutions. - Google Patents

Method of Purifying Contaminated Plating Solutions.

Info

Publication number
GB1195887A
GB1195887A GB31185/67A GB3118567A GB1195887A GB 1195887 A GB1195887 A GB 1195887A GB 31185/67 A GB31185/67 A GB 31185/67A GB 3118567 A GB3118567 A GB 3118567A GB 1195887 A GB1195887 A GB 1195887A
Authority
GB
United Kingdom
Prior art keywords
plated
metallic alloy
alloy base
noble metal
plating solution
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
GB31185/67A
Inventor
Clarence George Gerhold
Armand John De Rosset
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.)
Universal Oil Products Co
Original Assignee
Universal Oil Products Co
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 Universal Oil Products Co filed Critical Universal Oil Products Co
Publication of GB1195887A publication Critical patent/GB1195887A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85—Chromium, molybdenum or tungsten
    • B01J23/86—Chromium
    • 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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/44—Palladium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemically Coating (AREA)

Abstract

1,195,887. Plating with noble metal. UNIVERSAL OIL PRODUCTS CO. July 6, 1967 [July 7, 1966], No.31185/67. Headings C7B and C7F. [Also in Divisions B1 and C1] Noble metal (i.e. Ru, Rh, Pd, Os, Ir, Pt or an alloy of two or more of these metals) is electroplated or immersion plated from a plating solution on to a solid metallic alloy base selected from Ni- Cr alloys and Ni-Cr-Fe alloys, e.g. to make material which catalyses the combustion of inflammable vapours. The plating solution becomes contaminated and is purified by intermittently or continuously contacting it with a cation exchange resin and thereby removing metallic alloy base material contaminants from the plating solution with minimal accompanying removal of noble metal. Specific cation exchange resins are mentioned. The resin can be used in the form of powders, chips or beads. In examples, a metallic alloy base in the form of screen, wire or mat is cleaned in a hot solution of sodium orthosilicate with a surface active agent and is plated with Pd from baths containing palladium chloride and HCl. For example, (a) spongy Pd is electroplated at 71-77‹ C using graphite or Pd anodes or (b) amorphous Pd is plated by emmersion coating at 82‹ C with no electric current applied, the Pd replacing Ni and/ or Cr in the metallic alloy base. The plated alloy is rinsed and then heated to 316‹ C in an air stream containing hexane whereupon surface combustion takes place thus conditioning the Pd coating for service and increasing its tenacity to the base metal. In use, electric heating current is passed through the coated material to catalyse the combustion of vapours such as are produced when baking enamels and varnishes.
GB31185/67A 1966-07-07 1967-07-06 Method of Purifying Contaminated Plating Solutions. Expired GB1195887A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56339766A 1966-07-07 1966-07-07
FR112975A FR1530189A (en) 1966-07-07 1967-07-04 Improved process for preparing catalytic elements

Publications (1)

Publication Number Publication Date
GB1195887A true GB1195887A (en) 1970-06-24

Family

ID=26177820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31185/67A Expired GB1195887A (en) 1966-07-07 1967-07-06 Method of Purifying Contaminated Plating Solutions.

Country Status (2)

Country Link
FR (1) FR1530189A (en)
GB (1) GB1195887A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10316388B2 (en) * 2011-12-02 2019-06-11 Stillwater Mining Company Precious metals recovery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10316388B2 (en) * 2011-12-02 2019-06-11 Stillwater Mining Company Precious metals recovery
US11788170B2 (en) 2011-12-02 2023-10-17 Stillwater Mining Company Precious metals recovery

Also Published As

Publication number Publication date
FR1530189A (en) 1968-06-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees