JPS5782480A - Nitric acid pickling solution for metal - Google Patents

Nitric acid pickling solution for metal

Info

Publication number
JPS5782480A
JPS5782480A JP15786080A JP15786080A JPS5782480A JP S5782480 A JPS5782480 A JP S5782480A JP 15786080 A JP15786080 A JP 15786080A JP 15786080 A JP15786080 A JP 15786080A JP S5782480 A JPS5782480 A JP S5782480A
Authority
JP
Japan
Prior art keywords
hydrogen peroxide
nitric acid
replenishing
soln
sulfamic acid
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.)
Granted
Application number
JP15786080A
Other languages
Japanese (ja)
Other versions
JPS6320914B2 (en
Inventor
Masayoshi Kotake
Yoshihide Okumura
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.)
Nissan Chemical Corp
Original Assignee
Nissan Chemical Corp
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 Nissan Chemical Corp filed Critical Nissan Chemical Corp
Priority to JP15786080A priority Critical patent/JPS5782480A/en
Publication of JPS5782480A publication Critical patent/JPS5782480A/en
Publication of JPS6320914B2 publication Critical patent/JPS6320914B2/ja
Granted 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/085—Iron or steel solutions containing HNO3

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

PURPOSE:To obviate the abrupt generation of gases during replenishing of a concd. nitric acid and provide sufficient effect for suppression of production of gaseous NOx by contg. a proper amt. of hydrogen peroxide to a nitric acid pickling soln. added with a sulfamic acid. CONSTITUTION:Hydrogen peroxide of an amt. to be contained at 0.01-10% in the liquid is contained in a nitric acid pickling soln. of <=0.5wt% residual sulfamic acid concn. This liquid composition obviates the abrupt generation of gases despite replenishing of a concd. nitric acid of >=20% directly to this soln. This soln. shows a blue color as it contains hydrogen peroxide, and when the hydrogen peroxide is consumed on continuation of metallic pickling, the liquid shows a yellow color and therefore the timing for replenishing of the hydrogen peroxide is known. The replenishing of the sulfamic acid for suppressing the production of gaseous NOx is simply required to be carried out at the point of the time when the colored gaseous NOx is easy to be produced, and the need for quantitative analysis of the residual amt. of the sulfamic acid is eliminated.
JP15786080A 1980-11-10 1980-11-10 Nitric acid pickling solution for metal Granted JPS5782480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15786080A JPS5782480A (en) 1980-11-10 1980-11-10 Nitric acid pickling solution for metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15786080A JPS5782480A (en) 1980-11-10 1980-11-10 Nitric acid pickling solution for metal

Publications (2)

Publication Number Publication Date
JPS5782480A true JPS5782480A (en) 1982-05-22
JPS6320914B2 JPS6320914B2 (en) 1988-05-02

Family

ID=15658960

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15786080A Granted JPS5782480A (en) 1980-11-10 1980-11-10 Nitric acid pickling solution for metal

Country Status (1)

Country Link
JP (1) JPS5782480A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259533A1 (en) * 1986-09-11 1988-03-16 Eka Nobel Aktiebolag Method of reducing the emission of nitrogen oxides from a liquid containing nitric acid
EP0448189A2 (en) * 1990-03-14 1991-09-25 MANNESMANN Aktiengesellschaft Pickling process for work-pieces of high-alloy materials and apparatus for carrying out the process
EP0626469A1 (en) * 1993-05-24 1994-11-30 MANNESMANN Aktiengesellschaft Tickling process for high-alloyed workpieces

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5098439A (en) * 1974-01-05 1975-08-05
JPS53102232A (en) * 1977-02-19 1978-09-06 Sumitomo Metal Ind Ltd Pickling method for metal with restrained formation of nitrogen oxides

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5098439A (en) * 1974-01-05 1975-08-05
JPS53102232A (en) * 1977-02-19 1978-09-06 Sumitomo Metal Ind Ltd Pickling method for metal with restrained formation of nitrogen oxides

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0259533A1 (en) * 1986-09-11 1988-03-16 Eka Nobel Aktiebolag Method of reducing the emission of nitrogen oxides from a liquid containing nitric acid
EP0267166A2 (en) * 1986-09-11 1988-05-11 Eka Nobel Aktiebolag Method of reducing the emission of nitrogen oxides from a liquid containing nitric acid
US4938838A (en) * 1986-09-11 1990-07-03 Eka Nobel Ab Method of reducing the emission of NOx gas from a liquid containing nitric acid
EP0448189A2 (en) * 1990-03-14 1991-09-25 MANNESMANN Aktiengesellschaft Pickling process for work-pieces of high-alloy materials and apparatus for carrying out the process
EP0626469A1 (en) * 1993-05-24 1994-11-30 MANNESMANN Aktiengesellschaft Tickling process for high-alloyed workpieces

Also Published As

Publication number Publication date
JPS6320914B2 (en) 1988-05-02

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