ES8107331A1 - Un metodo mejorado para inhibir la corrosion metalica de su-perficies metalicas - Google Patents

Un metodo mejorado para inhibir la corrosion metalica de su-perficies metalicas

Info

Publication number
ES8107331A1
ES8107331A1 ES495735A ES495735A ES8107331A1 ES 8107331 A1 ES8107331 A1 ES 8107331A1 ES 495735 A ES495735 A ES 495735A ES 495735 A ES495735 A ES 495735A ES 8107331 A1 ES8107331 A1 ES 8107331A1
Authority
ES
Spain
Prior art keywords
ppm
caustic
corrosion inhibitors
hydrazine
hydrazine compounds
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
ES495735A
Other languages
English (en)
Other versions
ES495735A0 (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.)
Vulcan Materials Co
Original Assignee
Vulcan Materials 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 Vulcan Materials Co filed Critical Vulcan Materials Co
Publication of ES8107331A1 publication Critical patent/ES8107331A1/es
Publication of ES495735A0 publication Critical patent/ES495735A0/es
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
    • 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
    • C23F11/06—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly alkaline liquids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S159/00—Concentrating evaporators
    • Y10S159/13—Scale

Abstract

METODO PARA INHIBIR LA CORROSION DE SUPERFICIES DE NIQUEL O ALEACIONES DE NIQUEL EN CONTACTO CON LIQUIDOS CAUSTICOS. SE PARTE DE UNA SOLUCION CAUSTICA QUE CONTIENE DE 10 A 35 POR 100 DE HIDROXIDO DE SODIO O POTASIO Y DE 0,03 A 0,15 POR 100 DE CLORATO DE SODIO, COMO IMPUREZA. SE CONCENTRA HASTA UN 35 A 75 POR 100 DE HIDROXIDO SODICO O POTASICO, POR EVAPORACION EN VARIAS ETAPAS EN LAS QUE VA AUMENTANDO LA TEMPERATURA HASTA 175GC, EN UN RECIPIENTE CON PAREDES METALICAS COMPUESTAS DE NIQUEL, PRINCIPALMENTE. SE AÑADE HIDRAZINA COMO INHIBIDOR, EN CANTIDAD DE 3 A 40 PARTES POR 1.000 DE LA SOLUCION, EN LAS ETAPAS INTERMEDIAS DE EVAPORACION ANTES DE LLEGAR A UNA TEMPERATURA DE 160GC, O SU HIDRATO O SUS SALES DE ACIDOS INORGANICOS FUERTES EN UNA CANTIDAD EQUIVALENTE A LA DE HIDRAZINA.
ES495735A 1979-11-15 1980-10-08 Un metodo mejorado para inhibir la corrosion metalica de su-perficies metalicas Granted ES495735A0 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9439079A 1979-11-15 1979-11-15
US06/172,703 US4282178A (en) 1979-11-15 1980-07-25 Use of hydrazine compounds as corrosion inhibitors in caustic solutions

Publications (2)

Publication Number Publication Date
ES8107331A1 true ES8107331A1 (es) 1981-09-16
ES495735A0 ES495735A0 (es) 1981-09-16

Family

ID=26788806

Family Applications (1)

Application Number Title Priority Date Filing Date
ES495735A Granted ES495735A0 (es) 1979-11-15 1980-10-08 Un metodo mejorado para inhibir la corrosion metalica de su-perficies metalicas

Country Status (7)

Country Link
US (1) US4282178A (es)
CA (1) CA1144360A (es)
DE (1) DE3038189A1 (es)
ES (1) ES495735A0 (es)
FR (1) FR2469468B1 (es)
GB (1) GB2063237B (es)
SE (1) SE450009B (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4366130A (en) * 1980-07-25 1982-12-28 Vulcan Materials Company Process for removing residual hydrazine from caustic solutions
US4585579A (en) * 1984-10-01 1986-04-29 Occidental Chemical Corporation Suppression of corrosion in caustic manufacturing systems
US4676971A (en) * 1985-12-24 1987-06-30 Ppg Industries, Inc. Method for removing chlorate from alkali metal hydroxide
DE3809663A1 (de) * 1988-03-23 1989-10-12 Metallgesellschaft Ag Verfahren zur verminderung von ablagerungen in anlagen zur eindampfung von sulfitablaugen
NZ229120A (en) * 1988-05-23 1991-09-25 Calgon Corp Inhibiting corrosion in caustic evaporators by using hydroquinone and pyrogallol
ES2142759B1 (es) * 1998-04-22 2001-01-01 Univ Valencia Estudi General Procedimiento para la inhibicion de la corrosion del niquel, de sus aleaciones y de sus materiales compuestos.
DE10203329A1 (de) * 2002-01-29 2003-08-14 Bayer Ag Korrosionsschutzmittel zum Schutz von metallischen Werkstoffen in stark alkalischem Medium
US8632672B2 (en) * 2006-08-18 2014-01-21 General Electric Company Stainless steel anodes for alkaline water electrolysis and methods of making
CN106400025A (zh) * 2016-10-09 2017-02-15 广西大学 一种高效镍合金缓蚀剂

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2258545A (en) * 1937-05-15 1941-10-07 Pennsylvania Salt Mfg Co Process of purifying electrolytic cell liquor
US2403789A (en) * 1943-06-02 1946-07-09 Dow Chemical Co Method of purifying caustic alkali solution
US2404453A (en) * 1943-10-12 1946-07-23 Hooker Electrochemical Co Removal of chlorate from caustic soda
US2562169A (en) * 1948-09-17 1951-07-31 Diamond Alkali Co Method of purifying alkali metal hydroxides
US2610105A (en) * 1951-03-26 1952-09-09 Dow Chemical Co Process of simultaneously purifying and dehydrating caustic alkali solutions containing chlorates
US2823177A (en) * 1954-01-13 1958-02-11 Hooker Electrochemical Co Method and apparatus for lowering the chlorate content of alkali metal hydroxides
FR1128899A (fr) * 1954-08-11 1957-01-11 Ici Ltd Procédé de réduction de la corrosion des métaux par la soude caustique en cours de déshydratation
US2790707A (en) * 1955-10-03 1957-04-30 Dow Chemical Co Method for removing chlorates and chlorides from concentrated electrolytic sodium hydroxide
US2889204A (en) * 1957-03-15 1959-06-02 Dow Chemical Co Removing sodium chlorate from solid sodium hydroxide
US3042491A (en) * 1957-10-29 1962-07-03 David F Smith Purification of caustic alkali by ion exchange
FR1241945A (fr) * 1959-11-10 1960-09-23 California Research Corp Protection des tubages de puits de pétrole contre la corrosion
GB1042460A (en) * 1962-12-27 1966-09-14 Konink Nl Soda Ind Nv An improved method of evaporating caustic
US3728281A (en) * 1970-04-02 1973-04-17 Fisons Ltd Corrosion inhibiting composition containing hydrazine and a pyrazolidone or an aminophenol
FR2087309A5 (es) * 1970-05-14 1971-12-31 Orlova Frida
US3962113A (en) * 1972-12-26 1976-06-08 Olin Corporation Method for accelerating oxygen removal employing an aqueous solution of an alkyl hydrazine
JPS50134996A (es) * 1974-04-17 1975-10-25

Also Published As

Publication number Publication date
GB2063237A (en) 1981-06-03
GB2063237B (en) 1983-06-29
SE450009B (sv) 1987-06-01
FR2469468A1 (fr) 1981-05-22
DE3038189A1 (de) 1981-05-21
US4282178A (en) 1981-08-04
CA1144360A (en) 1983-04-12
SE8007445L (sv) 1981-05-16
FR2469468B1 (fr) 1985-08-16
ES495735A0 (es) 1981-09-16

Similar Documents

Publication Publication Date Title
GB1386746A (en) Use of phosphorus compounds in controlling corrosion of metal parts
GB865192A (en) Improvements in or relating to corrosion inhibitors
SE8206447L (sv) Avmetalliseringskomposition och -forfarande
ES8107331A1 (es) Un metodo mejorado para inhibir la corrosion metalica de su-perficies metalicas
ES439309A1 (es) Un metodo para impedir la corrosion de metales en contacto con un liquido acuoso.
JPS5460239A (en) Corrosion inhibitor for metals and anti-corrosive method
SE7713717L (sv) Inhibitor for aluminium i alkaliska losningar
US3583867A (en) Compositions for and method of dissolving nickel
GB1350274A (en) Corrosion inhibitor
JPS55158278A (en) Corrosion inhibiting method for metal
GB1488807A (en) Agents for the selective combating of weeds
GB1461136A (en) Corrosion inhibitors
GB925676A (en) Improvements in or relating to corrosion inhibition
GB933979A (en) Improvements in or relating to inhibiting corrosion of copper and copper-base alloys
US3029139A (en) Inhibition of corrosive action of aqueous ammonium nitrate-urea on ferrous metals
US3585143A (en) Method of removing copper-containing iron oxide incrustations from ferrous metal surfaces using an aqueous acid solution of o-amino thiophenol
US2325304A (en) Inhibition of corrosion of magnesium and magnesium base alloys
GB903937A (en) Process for the protection of metals against the corrosive action of brines
GB1161550A (en) Coating of Iron or Iron Alloys
FR2275199A1 (fr) (chloro-4 phenoxy) isobutyrate de dimethylbiguanide, son procede de preparation et medicaments contenant ce produit comme principe actif
US2952509A (en) Corrosion inhibition
US2577626A (en) Preventing corrosion of metals
GB870665A (en) Improvements in and relating to corrosion inhibitors
SU382775A1 (ru) ВСЕСОЮЭЙАЗ ^ _и ,Т?НТСО-ТЕХШ'^^ i ' ^ибп*отек?. ^!ВА^,М. Кл. С 23? 15/00С 23 [ 7/26УДК 620.197.2(088.8)
SU399338A1 (ru) Электролит для электрохимической обработки