FR1141799A -
Process to prevent the attack of metals by acid solutions, as well as anti-corrosive acid baths conforming to those obtained
- Google Patents
Process to prevent the attack of metals by acid solutions, as well as anti-corrosive acid baths conforming to those obtained
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Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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Application filed by Degussa GmbH, Deutsche Gold und Silber ScheideanstaltfiledCriticalDegussa GmbH
Application grantedgrantedCritical
Publication of FR1141799ApublicationCriticalpatent/FR1141799A/en
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
C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
C23F11/04—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly acid liquids
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Chemical & Material Sciences
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Engineering & Computer Science
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Materials Engineering
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Mechanical Engineering
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Metallurgy
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Organic Chemistry
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FR1141799D1955-02-241956-02-24
Process to prevent the attack of metals by acid solutions, as well as anti-corrosive acid baths conforming to those obtained
ExpiredFR1141799A
(en)
Process for the manufacture of trimethylhexamethylene diamine, as well as products conforming to those obtained by the present process or similar process