PL16626B1 - Method of obtaining catalysts containing chromium and iron. - Google Patents

Method of obtaining catalysts containing chromium and iron. Download PDF

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Publication number
PL16626B1
PL16626B1 PL16626A PL1662630A PL16626B1 PL 16626 B1 PL16626 B1 PL 16626B1 PL 16626 A PL16626 A PL 16626A PL 1662630 A PL1662630 A PL 1662630A PL 16626 B1 PL16626 B1 PL 16626B1
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PL
Poland
Prior art keywords
iron
chromium
catalysts containing
containing chromium
obtaining catalysts
Prior art date
Application number
PL16626A
Other languages
Polish (pl)
Filing date
Publication date
Application filed filed Critical
Publication of PL16626B1 publication Critical patent/PL16626B1/en

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Description

Dotychczasowe sposoby otrzymania ka¬ talizatorów zelaznych z chromem posluguja sie metoda stracania chromu ze soli chro¬ mu zapomoca alkaljów lub amonjaku lub tez dodaja do osadu tlenku lub wodorotlen¬ ku zelaza sole kwasu chromowego, np. chromian lub dwuchromian potasu. Przed¬ miotem niniejszego wynalazku jest otrzy¬ manie katalizatora, zawierajacego obok ze¬ laza chrom w specjalnie aktywnej postaci, znacznie przewyzszajacej aktywnoscia ka¬ talizatory znane o podobnym skladzie.Jako materjalu wyjsciowego uzywamy zwiazków zelaza dwuwartosciowego oraz kwasu chromowego; w wyniku reakcji tych cial nastepuje redukcja kwasu chromowe¬ go, przyczem zelazo dwuwartosciowe utle¬ nia isie na wyzszy stopien. Mozna otrzymy¬ wac na tej drodze katalizatory, zawieraja¬ ce obok zelaza i chromu tez inne skladniki, które mozna dodawac w róznych stadjach produkcji.Przyklad. 100 kg zelaza rozpuszcza sie w rozcienczonym kwasie azotowym, dodaje 10 kg kwasu chromowego lub 20 kg chro¬ mianu potasu i w temperaturze 60° sitra- ca sie amonjakiem. Cala ilosc chromu prze¬ chodzi do osadu.*) Wlascicielka patentu oswiadczyla, ze wynalazca jest p. Godlewicz w Królewskiej Hucie. PLHitherto methods of obtaining iron catalysts with chromium use the method of removing chromium from the chromium salt by means of alkali or ammonia, or by adding to the precipitate iron oxide or hydroxide salts of chromic acid, for example potassium chromate or dichromate. The object of the present invention is to obtain a catalyst containing, in addition to iron, chromium in a specially active form, significantly exceeding the activity of known catalysts of similar composition. We use divalent iron compounds and chromic acid as a starting material; as a result of the reaction of these bodies, the chromic acid is reduced, with the oxidation of divalent iron and the increase to a higher degree. In this way, it is possible to obtain catalysts containing, in addition to iron and chromium, also other ingredients, which can be added at various stages of production. 100 kg of iron are dissolved in dilute nitric acid, 10 kg of chromic acid or 20 kg of potassium chloride are added and the temperature is 60 ° filtered with ammonia. All the chromium goes to the sediment. *) The owner of the patent stated that the inventor was Mr. Godlewicz in Królewska Huta. PL

Claims (1)

1. Zastrzezenie patentowe. Sposób otrzymania katalizatorów, za¬ wierajacych miedzy innemi obdk zelaza chrom, znamienny tern, ze jako materjalu wyjsciowego uzywa sie zwiazków zelaza dwuwartosciowego i kwasu chromowego lub jego soli, przyczem zwiazki chromu prze¬ chodza w czasie reakcji z zelazem dwuwar- tosciowem w nizszy s;topien utlenienia; Panstwowa Fabryka Zwiazków Azotowych w Chorzowie. Druk L. Boguslawskiego i Ski, Warszawa. PL1. Patent claim. The method of obtaining catalysts containing, inter alia, ferrous iron chromium, characterized by the fact that divalent iron compounds and chromic acid or its salts are used as the starting material, while the chromium compounds are reacted with divalent iron in lower s; oxidation melt; National Factory of Nitrogen Compounds in Chorzów. Printing by L. Boguslawski and Ski, Warsaw. PL
PL16626A 1930-11-08 Method of obtaining catalysts containing chromium and iron. PL16626B1 (en)

Publications (1)

Publication Number Publication Date
PL16626B1 true PL16626B1 (en) 1932-08-31

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