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 metalicasInfo
- 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
Links
- 239000003518 caustics Substances 0.000 title abstract 3
- 238000005260 corrosion Methods 0.000 title abstract 2
- 230000007797 corrosion Effects 0.000 title abstract 2
- 150000002429 hydrazines Chemical class 0.000 title 1
- 239000003112 inhibitor Substances 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 6
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 abstract 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- 229910000990 Ni alloy Inorganic materials 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
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.
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)
| 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)
| 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 |
-
1980
- 1980-07-25 US US06/172,703 patent/US4282178A/en not_active Expired - Lifetime
- 1980-10-08 ES ES495735A patent/ES495735A0/es active Granted
- 1980-10-09 DE DE19803038189 patent/DE3038189A1/de not_active Withdrawn
- 1980-10-23 SE SE8007445A patent/SE450009B/sv not_active IP Right Cessation
- 1980-10-24 CA CA000363239A patent/CA1144360A/en not_active Expired
- 1980-11-06 GB GB8035716A patent/GB2063237B/en not_active Expired
- 1980-11-13 FR FR8024168A patent/FR2469468B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2469468B1 (fr) | 1985-08-16 |
| FR2469468A1 (fr) | 1981-05-22 |
| CA1144360A (en) | 1983-04-12 |
| DE3038189A1 (de) | 1981-05-21 |
| US4282178A (en) | 1981-08-04 |
| GB2063237B (en) | 1983-06-29 |
| SE8007445L (sv) | 1981-05-16 |
| GB2063237A (en) | 1981-06-03 |
| SE450009B (sv) | 1987-06-01 |
| ES495735A0 (es) | 1981-09-16 |
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