GB1442208A - Nitric acid regeneration process - Google Patents

Nitric acid regeneration process

Info

Publication number
GB1442208A
GB1442208A GB2823973A GB2823973A GB1442208A GB 1442208 A GB1442208 A GB 1442208A GB 2823973 A GB2823973 A GB 2823973A GB 2823973 A GB2823973 A GB 2823973A GB 1442208 A GB1442208 A GB 1442208A
Authority
GB
United Kingdom
Prior art keywords
nitric acid
regeneration process
acid regeneration
solution
precipitate
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
GB2823973A
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.)
FESCOL Ltd
Original Assignee
FESCOL 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 FESCOL Ltd filed Critical FESCOL Ltd
Priority to GB2823973A priority Critical patent/GB1442208A/en
Publication of GB1442208A publication Critical patent/GB1442208A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/46—Regeneration of etching compositions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/38—Nitric acid
    • C01B21/46—Purification; Separation ; Stabilisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1442208 Nitric acid regeneration process FESCOL Ltd 24 May 1974 [13 June 1973] 28239/73 Heading C1A Tri- and tetravalent cations are removed from a solution of nitric acid which has been used to dissolve nickel or nickel-based materials deposited on an article by a process which comprises adding to the nitric acid solution phosphorus, a condensed phosphoric acid or a salt thereof to precipitate the cations, and separating the solution from the precipitate.
GB2823973A 1973-06-13 1973-06-13 Nitric acid regeneration process Expired GB1442208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2823973A GB1442208A (en) 1973-06-13 1973-06-13 Nitric acid regeneration process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2823973A GB1442208A (en) 1973-06-13 1973-06-13 Nitric acid regeneration process

Publications (1)

Publication Number Publication Date
GB1442208A true GB1442208A (en) 1976-07-14

Family

ID=10272534

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2823973A Expired GB1442208A (en) 1973-06-13 1973-06-13 Nitric acid regeneration process

Country Status (1)

Country Link
GB (1) GB1442208A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569206A1 (en) * 1984-08-20 1986-02-21 Psi Star Inc PROCESS AND REGENERABLE SOLUTION FOR ATTACKING A METAL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569206A1 (en) * 1984-08-20 1986-02-21 Psi Star Inc PROCESS AND REGENERABLE SOLUTION FOR ATTACKING A METAL

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee