DE931532C - Alloy for Saettiger for distillation plants - Google Patents

Alloy for Saettiger for distillation plants

Info

Publication number
DE931532C
DE931532C DESCH6896A DESC006896A DE931532C DE 931532 C DE931532 C DE 931532C DE SCH6896 A DESCH6896 A DE SCH6896A DE SC006896 A DESC006896 A DE SC006896A DE 931532 C DE931532 C DE 931532C
Authority
DE
Germany
Prior art keywords
alloy
saturators
saettiger
distillation plants
ammonia
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
DESCH6896A
Other languages
German (de)
Inventor
Walther Dipl-Ing Baumann
Otto Dr-Ing Leihener
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.)
Schmidt and Clemens GmbH and Co
Original Assignee
Schmidt and Clemens GmbH and 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 Schmidt and Clemens GmbH and Co filed Critical Schmidt and Clemens GmbH and Co
Priority to DESCH6896A priority Critical patent/DE931532C/en
Application granted granted Critical
Publication of DE931532C publication Critical patent/DE931532C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

Legierung für Sättiger für Destillationsanlagen Es ist bekannt, daß im Destillationsgas, Kokereigas, Stadtgas usw. sich Ammoniak befindet, das als wertvolles Nebenprodukt gilt und auch wegen seiner schädlichen Einflüsse auf Apparate, Rohrleitungen, Gasmesser usw. entfernt werden muß. In Verbindung mit Sauerstoff wirkt das Ammoniak bei Gegenwart von Feuchtigkeit sehr aggressiv auf Metalle. Die korrodierende Eigenschaft wird durch die gleichzeitige Anwesenheit von Cyanwasserstoff, Stickoxyden und Schwefelwasserstoff noch verstärkt. Die am stärksten den Korrosionen ausgesetzten Apparate sind die Ammoniaksättiger, weil Schwefelsäure, Ammoniak und zumeist auch die obengenannten Stoffe, wie Cyanwasserstoff u. dgl., bei starker Wärmeentwicklung im Ammoniaksättiger zusammenkommen. Alle bisher zur Herstellung der Sättiger verwendeten Metall-Legierungen sind vorzeitig schon nach wenigen Tagen zerstört worden.Alloy for saturators for distillation plants It is known that in the distillation gas, coke oven gas, town gas, etc. there is ammonia, which is considered valuable By-product applies and also because of its harmful effects on apparatus, pipelines, Gas meter etc. must be removed. Ammonia works in conjunction with oxygen very aggressive to metals in the presence of moisture. The corrosive property is caused by the simultaneous presence of hydrogen cyanide, nitrogen oxides and hydrogen sulfide reinforced. The apparatus most exposed to corrosion are those Ammonia saturator, because sulfuric acid, ammonia and mostly also the above Substances such as hydrogen cyanide and the like in the case of strong heat development in the ammonia saturator getting together. All metal alloys previously used to manufacture the saturators were destroyed prematurely after a few days.

Es wurde nun gefunden, daß eine an sich bekannte Legierung aus C bis 0,3 0/0, Si 2 bis 8 %, Cr 2o bis 30'/0, Ni 2o bis 50'10, Mo 3 bis 15 0/0, Cu 2 bis 12% und der Rest aus Eisen sich für die Herstellung von Ammoniaksättigern besonders gut eignet. Das Korrosionsverhalten dieser Legierung ist, wie durch über längere Zeit sich erstreckende Versuche festgestellt wurde, auch in den unteren Grenzen der Legierung hervorragend.It has now been found that a known alloy of C bis 0.3 0/0, Si 2 to 8%, Cr 2o to 30 '/ 0, Ni 2o to 50'10, Mo 3 to 15 0/0, Cu 2 to 12% and the remainder from iron are particularly suitable for the production of ammonia saturators well suited. The corrosion behavior of this alloy is as it has been for a long time Time-extended attempts were found, even in the lower limits the alloy is excellent.

Claims (1)

PATENTANSPRUCH: Die Verwendung einer an sich bekannter Legierung aus bis o,3 1/o Kohlenstoff, 2 bis 8% Silizium, 2o bis 30% Chrom, 2o bis 50 % Nickel, 3 bis 15% Molybdän, 2 bis 12% Kupfer, Rest Eisen zur Herstellung von Sättigern in Destillationsanlagen, insbesondere Ammoniaksättigern. Angezogene Druckschriften: Britische Patentschriften Nr. 22o oo6, 3i3 q71; französische Patentschriften Nr. 743 179, 659 234, 496 928; G r ü t z n e r , Eisen- und Stahllegierungen, 193,1, S. 75, sowie Ergänzungsband, 1935, S. 147; H o u d r e m o n t, Einführung in die Sonderstahlkunde, 1935, S. 243.PATENT CLAIM: The use of a known alloy of up to 0.31 / o carbon, 2 to 8% silicon, 2o to 30% chromium, 2o to 50% nickel, 3 to 15% molybdenum, 2 to 12% copper, the rest Iron for the production of saturators in distillation plants, especially ammonia saturators. References: British Patent Nos. 22o oo6, 3i3 q71; French Patent Nos. 743 179, 659 234, 496 928; G rützner, Eisen- und Stahllegierungen, 193.1, p. 75, as well as supplementary volume, 1935, p. 147; H oudremont, Introduction to Special Steel, 1935, p. 243.
DESCH6896A 1951-06-19 1951-06-19 Alloy for Saettiger for distillation plants Expired DE931532C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH6896A DE931532C (en) 1951-06-19 1951-06-19 Alloy for Saettiger for distillation plants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH6896A DE931532C (en) 1951-06-19 1951-06-19 Alloy for Saettiger for distillation plants

Publications (1)

Publication Number Publication Date
DE931532C true DE931532C (en) 1955-08-11

Family

ID=7425109

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH6896A Expired DE931532C (en) 1951-06-19 1951-06-19 Alloy for Saettiger for distillation plants

Country Status (1)

Country Link
DE (1) DE931532C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8800087B2 (en) * 2011-03-14 2014-08-12 Mmc Bus Division Inc. Ramp system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR496928A (en) * 1917-12-19 1919-11-20 Commentry Fourchambault Et Dec Alloy particularly resistant to the corrosive action of chemical agents and endowed with mechanical properties superior to those of steels
GB220006A (en) * 1923-02-09 1924-08-11 Robert Abbott Hadfield Improvements in or relating to alloys
GB313471A (en) * 1928-03-10 1929-06-10 Robert Abbott Hadfield Improvements in or relating to alloys
FR659234A (en) * 1927-12-12 1929-06-26 Commentry Fourchambault Et Dec Alloy resistant to the corrosive action of chemical agents, endowed with good mechanical properties and particularly resistant to continuous stress at high temperature
FR743179A (en) * 1933-03-25

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR743179A (en) * 1933-03-25
FR496928A (en) * 1917-12-19 1919-11-20 Commentry Fourchambault Et Dec Alloy particularly resistant to the corrosive action of chemical agents and endowed with mechanical properties superior to those of steels
GB220006A (en) * 1923-02-09 1924-08-11 Robert Abbott Hadfield Improvements in or relating to alloys
FR659234A (en) * 1927-12-12 1929-06-26 Commentry Fourchambault Et Dec Alloy resistant to the corrosive action of chemical agents, endowed with good mechanical properties and particularly resistant to continuous stress at high temperature
GB313471A (en) * 1928-03-10 1929-06-10 Robert Abbott Hadfield Improvements in or relating to alloys

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8800087B2 (en) * 2011-03-14 2014-08-12 Mmc Bus Division Inc. Ramp system

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