FR2362661A1 - Utilisation d'une fonte grise dans la fabrication de chaudieres pour de l'acide sulfurique concentre bouillant - Google Patents

Utilisation d'une fonte grise dans la fabrication de chaudieres pour de l'acide sulfurique concentre bouillant

Info

Publication number
FR2362661A1
FR2362661A1 FR7726162A FR7726162A FR2362661A1 FR 2362661 A1 FR2362661 A1 FR 2362661A1 FR 7726162 A FR7726162 A FR 7726162A FR 7726162 A FR7726162 A FR 7726162A FR 2362661 A1 FR2362661 A1 FR 2362661A1
Authority
FR
France
Prior art keywords
weight
boilers
manufacture
sulfuric acid
concentrated sulfuric
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.)
Withdrawn
Application number
FR7726162A
Other languages
English (en)
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of FR2362661A1 publication Critical patent/FR2362661A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/02—Apparatus characterised by their chemically-resistant properties
    • B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
    • B01J2219/0272—Graphite

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

Conformément à l'invention on utilise une fonte grise contenant 2,5 à 3,6 % en poids de carbone, 0,3 à 3,5 % en poids de silicium, 0 à 0,2 % en poids de phosphore, 0 à 2,5 % en poids de cuivre, 0 à 3,5 % en poids de nickel, 0,1 à 1 % en poids de vanadium, 0 à 0,2 % en poids de chrome, 0,2 à 0,7 % en poids de manganèse, 0 à 0,1 % en poids de soufre, moins de 0,1 % en poids d'aluminium et moins de 0,5 % en poids de titane, le reste étant constitué par le fer et les impuretés dues à sa préparation, dont la portion de graphite est présente sous une forme lamellaire finement divisée ou nodulaire en structure perlitique, comme matériau pour la fabrication de chaudières pour de l'acide sulfurique concentré bouillant.
FR7726162A 1976-08-28 1977-08-29 Utilisation d'une fonte grise dans la fabrication de chaudieres pour de l'acide sulfurique concentre bouillant Withdrawn FR2362661A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2638900 1976-08-28

Publications (1)

Publication Number Publication Date
FR2362661A1 true FR2362661A1 (fr) 1978-03-24

Family

ID=5986642

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7726162A Withdrawn FR2362661A1 (fr) 1976-08-28 1977-08-29 Utilisation d'une fonte grise dans la fabrication de chaudieres pour de l'acide sulfurique concentre bouillant

Country Status (2)

Country Link
JP (1) JPS5329222A (fr)
FR (1) FR2362661A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3119444A1 (de) * 1980-05-16 1982-05-13 Doryokuro Kakunenryo Verfahren zur stabilisierung des betriebes eines aus tantal oder einer legierung auf tantalbasis bestehenden saeuredigerierkessels
FR2587727A1 (fr) * 1985-09-23 1987-03-27 Rhone Poulenc Rech Nouvelle fonte grise ayant un comportement ameliore a la corrosion en milieu acide sulfurique concentre et chaud

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900012738A1 (it) * 2019-07-24 2021-01-24 Freni Brembo Spa Ghisa, in particolare per componenti di freni a disco

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3119444A1 (de) * 1980-05-16 1982-05-13 Doryokuro Kakunenryo Verfahren zur stabilisierung des betriebes eines aus tantal oder einer legierung auf tantalbasis bestehenden saeuredigerierkessels
FR2587727A1 (fr) * 1985-09-23 1987-03-27 Rhone Poulenc Rech Nouvelle fonte grise ayant un comportement ameliore a la corrosion en milieu acide sulfurique concentre et chaud

Also Published As

Publication number Publication date
JPS5329222A (en) 1978-03-18

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Legal Events

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ST Notification of lapse