ES389801A1 - Composition and method for inhibiting corrosion - Google Patents

Composition and method for inhibiting corrosion

Info

Publication number
ES389801A1
ES389801A1 ES389801A ES389801A ES389801A1 ES 389801 A1 ES389801 A1 ES 389801A1 ES 389801 A ES389801 A ES 389801A ES 389801 A ES389801 A ES 389801A ES 389801 A1 ES389801 A1 ES 389801A1
Authority
ES
Spain
Prior art keywords
hydrogen
aryl
alcohol
hydrazine
different
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
ES389801A
Other languages
Spanish (es)
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.)
Fisons Ltd
Original Assignee
Fisons 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 Fisons Ltd filed Critical Fisons Ltd
Publication of ES389801A1 publication Critical patent/ES389801A1/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
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
    • E01B27/13—Packing sleepers, with or without concurrent work on the track
    • E01B27/16—Sleeper-tamping machines
    • E01B27/18—Sleeper-tamping machines by introducing additional fresh material under the sleepers, e.g. by the measured-shovel method, by the blowing method

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Detergent Compositions (AREA)

Abstract

A method of inhibiting corrosion in apparatus containing an aqueous medium, which comprises adding hydrazine and at least one activating compound having the general formula one of formulas I, II or III to the aqueous medium. ** (See formula) ** or one of its acid addition salts, wherein R1, R2, and R3 are the same or different, and are hydrogen, alcohol groups, aryl groups, aralcoyl or alkaryl groups; all of which may be substituted; ** (See formula) ** or one of its acid addition salts, where one of R4 and R5 is the group -NHR6 in which R6 is hydrogen, alcohol, aryl or aralcohyl; and the other of R4 and R5 is hydrogen, or a group -NR7R8 in which R7 and R8 may be the same or different and are hydrogen, alcoholic, aryl or aralcohyl; or ** (See formula) ** wherein R9 and R10 may be the same or different and are hydrogen, alcohol, aryl alkaryl, halogen, alkoxy, amino, carboxylic acid or its salts or esters, or sulfonic acid or its salts or esters, the amount of hydrazine being added to the medium Aqueous in stoichiometric excess over the amount of oxygen dissolved in the aqueous medium and the weight ratio of hydrazine to the activating compound being from 30 to 1500: 1. (Machine-translation by Google Translate, not legally binding)
ES389801A 1970-04-02 1971-04-01 Composition and method for inhibiting corrosion Expired ES389801A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1558070 1970-04-02
GB2304870 1970-05-13
GB2304770 1970-05-13

Publications (1)

Publication Number Publication Date
ES389801A1 true ES389801A1 (en) 1974-03-01

Family

ID=27257275

Family Applications (1)

Application Number Title Priority Date Filing Date
ES389801A Expired ES389801A1 (en) 1970-04-02 1971-04-01 Composition and method for inhibiting corrosion

Country Status (12)

Country Link
JP (1) JPS5330659B1 (en)
BE (1) BE765235A (en)
DE (1) DE2115463A1 (en)
DK (1) DK136834B (en)
ES (1) ES389801A1 (en)
FI (1) FI52873C (en)
FR (1) FR2085795B1 (en)
GB (1) GB1349347A (en)
IE (1) IE35179B1 (en)
NL (1) NL168275C (en)
NO (1) NO131731C (en)
SE (1) SE367445B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5856692U (en) * 1981-10-15 1983-04-16 本田技研工業株式会社 Windshields for motorcycles, etc.
JPS60136275U (en) * 1985-01-17 1985-09-10 本田技研工業株式会社 small vehicle

Also Published As

Publication number Publication date
IE35179L (en) 1971-10-02
FI52873B (en) 1977-08-31
NL168275B (en) 1981-10-16
FI52873C (en) 1977-12-12
NL7104286A (en) 1971-10-05
NL168275C (en) 1982-03-16
DK136834B (en) 1977-11-28
NO131731C (en) 1975-07-16
NO131731B (en) 1975-04-07
BE765235A (en) 1971-10-04
JPS5330659B1 (en) 1978-08-29
DE2115463A1 (en) 1971-10-21
DK136834C (en) 1978-05-08
SE367445B (en) 1974-05-27
GB1349347A (en) 1974-04-03
FR2085795A1 (en) 1971-12-31
IE35179B1 (en) 1975-12-10
FR2085795B1 (en) 1975-03-21

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