BR7904593A - Processo para limpeza das paredes de trocadores termicos ou de reatores - Google Patents

Processo para limpeza das paredes de trocadores termicos ou de reatores

Info

Publication number
BR7904593A
BR7904593A BR7904593A BR7904593A BR7904593A BR 7904593 A BR7904593 A BR 7904593A BR 7904593 A BR7904593 A BR 7904593A BR 7904593 A BR7904593 A BR 7904593A BR 7904593 A BR7904593 A BR 7904593A
Authority
BR
Brazil
Prior art keywords
reactors
cleaning
walls
thermal exchangers
exchangers
Prior art date
Application number
BR7904593A
Other languages
English (en)
Portuguese (pt)
Inventor
A Lectard
Original Assignee
Pechiney Aluminium
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
Priority claimed from FR7822523A external-priority patent/FR2431671A1/fr
Priority claimed from FR7913925A external-priority patent/FR2457471A2/fr
Application filed by Pechiney Aluminium filed Critical Pechiney Aluminium
Publication of BR7904593A publication Critical patent/BR7904593A/pt

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
    • C23G1/086—Iron or steel solutions containing HF
    • 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

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)
  • Detergent Compositions (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Catalysts (AREA)
  • ing And Chemical Polishing (AREA)
BR7904593A 1978-07-19 1979-07-18 Processo para limpeza das paredes de trocadores termicos ou de reatores BR7904593A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7822523A FR2431671A1 (fr) 1978-07-19 1978-07-19 Procede d'elimination des incrustations essentiellement titaniferes des parois d'echangeurs thermiques
FR7913925A FR2457471A2 (fr) 1979-05-23 1979-05-23 Procede continu d'elimination des incrustations essentiellement titaniferes des parois d'echangeurs thermiques

Publications (1)

Publication Number Publication Date
BR7904593A true BR7904593A (pt) 1980-03-25

Family

ID=26220703

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7904593A BR7904593A (pt) 1978-07-19 1979-07-18 Processo para limpeza das paredes de trocadores termicos ou de reatores

Country Status (19)

Country Link
US (1) US4277289A (https=)
AR (1) AR218551A1 (https=)
AU (1) AU532323B2 (https=)
BR (1) BR7904593A (https=)
CA (1) CA1126137A (https=)
DD (1) DD144955A5 (https=)
DE (1) DE2928832C2 (https=)
ES (1) ES482514A1 (https=)
GB (1) GB2026038B (https=)
HU (1) HU179742B (https=)
IE (1) IE48657B1 (https=)
IL (1) IL57818A0 (https=)
IT (1) IT1122196B (https=)
MA (1) MA18532A1 (https=)
OA (1) OA06299A (https=)
PH (1) PH14403A (https=)
PL (1) PL217174A1 (https=)
TR (1) TR20191A (https=)
YU (1) YU41654B (https=)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2101650C1 (ru) * 1996-03-18 1998-01-10 Государственный научный центр РФ "Физико-энергетический институт" Способ очистки внутренней поверхности стального циркуляционного контура с жидкометаллическим теплоносителем на основе свинца
US6599416B2 (en) 2001-09-28 2003-07-29 General Electric Company Method and apparatus for selectively removing coatings from substrates
US6916429B2 (en) * 2002-10-21 2005-07-12 General Electric Company Process for removing aluminosilicate material from a substrate, and related compositions
US6953533B2 (en) 2003-06-16 2005-10-11 General Electric Company Process for removing chromide coatings from metal substrates, and related compositions
DE102008005199B4 (de) * 2008-01-18 2014-01-23 Areva Gmbh Verfahren zur Reinigung eines Wärmetauschers
US20110088720A1 (en) * 2009-10-20 2011-04-21 General Electric Company Methods for cleaning substrates
FR3005318B1 (fr) * 2013-05-03 2015-05-29 Technett Solution de decapage chimique exempte d'acide fluorhydrique applicable sur le titane et ses alliages
US12344941B2 (en) * 2023-07-31 2025-07-01 Pt Qmb New Energy Materials Automatic descaling system for high-pressure reactor of laterite nickel ore

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2711364A (en) * 1953-12-31 1955-06-21 John G Beach Polishing metals and composition therefor
US3010854A (en) * 1954-12-31 1961-11-28 Armco Steel Corp Pickling solution and method
US3514407A (en) * 1966-09-28 1970-05-26 Lockheed Aircraft Corp Chemical polishing of titanium and titanium alloys
US3562013A (en) * 1967-10-23 1971-02-09 Diversey Corp Process of deoxidizing titanium and its alloys
DE1949287C3 (de) * 1969-09-30 1981-07-23 Vereinigte Aluminium-Werke Ag, 5300 Bonn Verfahren zum Reinigen der Rohre von beim Rohraufschluß von Bauxit mit Natriumaluminatlauge entstandenen Krusten
DE1949778A1 (de) * 1969-10-02 1971-04-22 Vaw Ver Aluminium Werke Ag Verfahren zur Entfernung von schwerloeslichen Krusten aus Bauxit-Aufschlussanlagen,mit Ausnahme von Rohraufschlussanlagen
US3725224A (en) * 1971-06-30 1973-04-03 Rohr Industries Inc Composition for electrolytic descaling of titanium and its alloys
US3891456A (en) * 1973-10-17 1975-06-24 Us Air Force Surface treatment of titanium and titanium alloys

Also Published As

Publication number Publication date
YU174479A (en) 1982-08-31
MA18532A1 (fr) 1980-04-01
AU4897979A (en) 1980-01-24
AU532323B2 (en) 1983-09-29
GB2026038B (en) 1982-09-02
DE2928832C2 (de) 1982-02-18
HU179742B (en) 1982-12-28
GB2026038A (en) 1980-01-30
IT1122196B (it) 1986-04-23
DD144955A5 (de) 1980-11-12
IT7924394A0 (it) 1979-07-17
AR218551A1 (es) 1980-06-13
IE48657B1 (en) 1985-04-03
YU41654B (en) 1987-12-31
PH14403A (en) 1981-06-25
DE2928832A1 (de) 1980-01-31
PL217174A1 (https=) 1980-06-02
IL57818A0 (en) 1979-11-30
CA1126137A (fr) 1982-06-22
OA06299A (fr) 1981-06-30
IE791352L (en) 1980-01-19
ES482514A1 (es) 1980-04-01
US4277289A (en) 1981-07-07
TR20191A (tr) 1980-11-01

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Legal Events

Date Code Title Description
MK Patent expired

Effective date: 19940718