Der Chemische Transport von Pt mit CO + Cl2 (Br2)

Schäfer, Harald; Wiese, U.

doi:10.1016/0022-5088(71)90166-4

Cited by 14 publications

(6 citation statements)

References 5 publications

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“…The exothermic transport follows the equilibrium: [13] 6 Pt(s) + 6 Cl 2 (g) h Pt 6 Cl 12 (g) (600 Ǟ 700°C) (37) The endothermic transport is described by the two following equilibria: [14] Pt(s) + 3/2 Cl 2 (g) h PtCl 3 (g) (1000 Ǟ 800°C)…”

Section: Reviewmentioning

confidence: 99%

“…Carbon monoxide is only used for the transport of nickel. The exothermic transport of platinum with chlorine and carbon monoxide or bromine and carbon monoxide from 375 to 475°C can be explained with the formation of a gaseous complex: [37] Pt(s) + Cl 2 (g) + 2 CO(g) h Pt(CO) 2 Cl 2 (g) (375 Ǟ 475°C) (45) In this case, too, the formation of a gaseous complex increases the volatility of platinum, which could otherwise not be transferred into gas phase at the given temperatures.…”

Section: Further Transport Agentsmentioning

confidence: 99%

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Chemical Vapor Transport Reactions – Arguments for Choosing a Suitable Transport Agent

Binnewies

Schmidt

2017

Zeitschrift anorg allge chemie

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Abstract.A variety of processes of crystal growth proceeds via the gas phase. If the initial solid material is volatilized in a heterogeneous reaction under presence of a gaseous reactant, the transport agent, the term Chemical Vapor Transport Reaction (CVT) is applied. Crystallization processes by CVT are known for both elements, intermetallics, binary and complex oxides, halides, chalcogenides, and pnictides. Even if the formation of volatile halides is a common feature of almost

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Section: Reviewmentioning

confidence: 99%

Section: Further Transport Agentsmentioning

confidence: 99%

Chemical Vapor Transport Reactions – Arguments for Choosing a Suitable Transport Agent

Binnewies

Schmidt

2017

Zeitschrift anorg allge chemie

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“…So wird in der Literatur über den Transport von 500 mg Platin in einer geschlossenen Ampulle in weniger als zwei Stunden berichtet [12]. Platin lässt sich jedoch in Gegenwart eines Gemischs von Chlor und Kohlenstoffmonoxid bereits bei 375°C in großem Umfang in die Gasphase überführen.…”

Section: Bildung Von Pt(co) 2 CLunclassified

“…Platin lässt sich jedoch in Gegenwart eines Gemischs von Chlor und Kohlenstoffmonoxid bereits bei 375 °C in großem Umfang in die Gasphase überführen. So wird in der Literatur über den Transport von 500 mg Platin in einer geschlossenen Ampulle in weniger als zwei Stunden berichtet 12. Der chemische Hintergrund dieses ungewöhnlichen Befunds ist die Bildung von gasförmigem Pt(CO) 2 Cl 2 .…”

Section: Besondere Maßnahmenunclassified

Konzepte zur Wiedergewinnung strategischer Metalle über die Gasphase

Binnewies

Bokelmann

Gellermann

et al. 2015

Chemie Ingenieur Technik

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Guaranteeing a sustainable supply with raw materials for industrial needs is essential. Especially, there is high interest in critical metals and metalloids. Without those materials numerous modern technical products such as mobile phones are unimaginable. Research and development of new technologies of recycling processes for these materials grow to an important challenge for modern societies. An aspect of those recycling processes is presented in this work. Via gas phase reactions an enrichment and separation of metals and metalloids even in small amounts are possible. The thermodynamic principles of those reactions and their possibilities and limits are also explained in this work

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“…The transport effectiveness of the hydrated oxide halides, Bi(OH) 2 X (X = Cl, Br, I), was reported [60]. Finally, Pt(CO) 2 Cl 2 is a gaseous compound that becomes transport effective during the transport of platinum with carbon monoxide and chlorine [61].…”

Section: Transport Agents and Gas Speciesmentioning

confidence: 99%