DE738196C - Process for the addition of oxygen to calcium peroxide, in particular for the purpose of producing rust inhibitors - Google Patents

Process for the addition of oxygen to calcium peroxide, in particular for the purpose of producing rust inhibitors

Info

Publication number
DE738196C
DE738196C DEST60185D DEST060185D DE738196C DE 738196 C DE738196 C DE 738196C DE ST60185 D DEST60185 D DE ST60185D DE ST060185 D DEST060185 D DE ST060185D DE 738196 C DE738196 C DE 738196C
Authority
DE
Germany
Prior art keywords
oxygen
calcium peroxide
addition
rust inhibitors
peroxide
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
DEST60185D
Other languages
German (de)
Inventor
Dipl-Ing Josef Stepanek
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.)
JOSEF STEPANEK DIPL ING
Original Assignee
JOSEF STEPANEK DIPL ING
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 JOSEF STEPANEK DIPL ING filed Critical JOSEF STEPANEK DIPL ING
Priority to DEST60185D priority Critical patent/DE738196C/en
Application granted granted Critical
Publication of DE738196C publication Critical patent/DE738196C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/04—Metal peroxides or peroxyhydrates thereof; Metal superoxides; Metal ozonides; Peroxyhydrates thereof
    • C01B15/043—Metal peroxides or peroxyhydrates thereof; Metal superoxides; Metal ozonides; Peroxyhydrates thereof of alkali metals, alkaline earth metals or magnesium or beryllium or aluminium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Description

Verfahren zur Anlagerung von Sauerstoff an Calciumperoxyd, insbesondere zum Zwecke der Herstellung von Rostschutzmitteln Es ist bekannt, daß man Calciumoxyd durch geeignete Behandlungsweisen in Peroxyd verwandeln -kann, welches die Fähigkeit besitzt, Sauerstoff leicht abzuspalten.Process for the addition of oxygen to calcium peroxide, in particular for the purpose of producing rust inhibitors It is known that calcium oxide is used by suitable treatment methods in peroxide - can, which the ability has the ability to split off oxygen easily.

Diese Abspaltung findet für gewisse Zwecke, welche später erwähnt werden sollen, zu Heftig statt und dauert auch nur kurze Zeit an. Der Grund für die rasche Erschöpfung des Calciumperoxyds ist einerseits in der heftigen Sauerstoffabgabe, anderseits aber hauptsächlich in der geringen Sauerstoffreserve des Peroxyds selbst gegeben.This split takes place for certain purposes which will be mentioned later should be too violent and only lasts for a short time. The reason for the rapid exhaustion of calcium peroxide is on the one hand in the violent release of oxygen, on the other hand, however, mainly in the small oxygen reserve of the peroxide itself given.

Es wurde nun gefunden, daß die Menge, des aktiven Sauerstoffs von Calciumperoxyd erhöht werden kann, wobei erwünschterweise die Heftigkeit der Sauerstoffabgabe abnimmt, wenn man dieses zum Zwecke einer Sauerstoffanlagerung in einer reinen SauerstoffaLrro5:phäre unter Einhaltung bestimmter Bedingungen glüht. Zu diesen Bedingungen gehört erfindungsgemäß vor allem, daß der Glühprozeß in Gegenwart von- Calcium-Kalium-Platincyanid (CaK)2 Pt2 (CN)io als Katalysator stattfindet, welches dem Peroxyd in einem Gewichtsverhältnis von i : ioo bis i -- i o ooo zugemischt wird. Ferner dürfen Druck und Temperatur der Sauerstoffatmosphäre nicht kleiner als 2 atü und 5oo° und nicht größer als i oo atü und looo° sein.It has now been found that the amount of active oxygen of Calcium peroxide can be increased, while desirably the intensity of the oxygen release decreases if this is used for the purpose of oxygen deposition in a pure oxygen atmosphere glows under certain conditions. These conditions belong to the invention above all that the annealing process in the presence of calcium-potassium-platinum cyanide (CaK) 2 Pt2 (CN) io takes place as a catalyst, which the peroxide in a weight ratio from i: ioo to i - i o ooo is added. Pressure and temperature are also allowed the oxygen atmosphere is not less than 2 atmospheres and 500 degrees and not greater than i oo atü and looo ° be.

Der Prozeß muß mindestens ioo Stunden lang aufrechterhalten werden, wenn das Verfahren erfolgreich durchgeführt werden soll.The process must be maintained for at least 100 hours if the procedure is to be carried out successfully.

Der stattfindende chemische Vorgang bei diesem Proz@eß bedarf noch einer endgültigen Klärung, insbesondere was die Rolle des Katalysators anbelangt. Wahrscheinlich aber gibt das Peroxyd gebundenes Wasser ab und nimmt Sauerstoff .auf, was nach folgenden Gleichungen vor sich gehen dürfte: Ca02.8H20+O =Ca03-;-8H20 Ca02#BH2O+0- =Ca04 --8 H.0 Die gewerbliche Verwertbarkeit der durch das beschriebene Verfahren erzeugten Produkte ist vor allem in dem Umstand begründet, daß deren Sauerstoff langsam, gleichmäßig und langanhaltend sowie unbeeinflußbar durch äußere Faktoren, wie Temperatur und Feuchtigkeit, abgegeben wird. Die Produkte des Verfahrens haben- z. B-. die Eigenschaft, Eisen und Stahl gleichmäßig und sicher zu passivieren, und eignen sich deshalb außerordentlich gut zur Erzeugung von passivierend wirkenden Rostschutzmitteln, welche u. a. imstande sind, die auf der gleichen Voraussetzung beruhende Wirkung von Bleimennige zu übertreffen.The chemical process taking place in this process is still necessary final clarification, particularly as regards the role of the catalytic converter. Probably, however, the peroxide releases bound water and absorbs oxygen, what should happen according to the following equations: Ca02.8H20 + O = Ca03 -; - 8H20 Ca02 # BH2O + 0- = Ca04 --8 H.0 The commercial usability of the process described produced products is mainly due to the fact that their oxygen slow, steady and long-lasting as well as unaffected by external factors, such as temperature and humidity. The products of the process have- z. B-. the ability to passivate iron and steel evenly and safely, and are therefore suitable extremely good for generating passivating effective anti-rust agents, which among other things. are able to work on the same premise based effect of red lead to surpass.

Claims (1)

PATENTANSPRUCH: Verfahren zur Anlagerung von Sauerste-ff an Calciumperoxyd, dadurch gekemizeichnet, daß Calciumperoxyd, in Gegenzs.Tart von Calcium-Isalium-Platincyanid mit der Formel (CaIs)2 Pt., (CN)lo .als Katalysator, in einer Sauerstoffatmosphäre von mindestens z bis höchstens t oo atü und bei. Temperaturen von mindestens joo bis höchstens 2ooo° geglüht wird, wobei die Glühdauer mindestens roo Stunden beträgt.PATENT CLAIM: Process for the addition of acidic carbon to calcium peroxide, thereby gekemizeichnet that calcium peroxide, in Gegenenzs.Tart of calcium-isalium-platinum cyanide with the formula (CaIs) 2 Pt., (CN) lo. as a catalyst, in an oxygen atmosphere from at least z to at most t oo atü and at. Temperatures of at least joo is annealed up to a maximum of 2,000 °, the annealing time being at least 100 hours.
DEST60185D 1940-11-03 1940-11-03 Process for the addition of oxygen to calcium peroxide, in particular for the purpose of producing rust inhibitors Expired DE738196C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEST60185D DE738196C (en) 1940-11-03 1940-11-03 Process for the addition of oxygen to calcium peroxide, in particular for the purpose of producing rust inhibitors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST60185D DE738196C (en) 1940-11-03 1940-11-03 Process for the addition of oxygen to calcium peroxide, in particular for the purpose of producing rust inhibitors

Publications (1)

Publication Number Publication Date
DE738196C true DE738196C (en) 1943-08-05

Family

ID=7468297

Family Applications (1)

Application Number Title Priority Date Filing Date
DEST60185D Expired DE738196C (en) 1940-11-03 1940-11-03 Process for the addition of oxygen to calcium peroxide, in particular for the purpose of producing rust inhibitors

Country Status (1)

Country Link
DE (1) DE738196C (en)

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