PL39174B1 - - Google Patents

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Publication number
PL39174B1
PL39174B1 PL39174A PL3917455A PL39174B1 PL 39174 B1 PL39174 B1 PL 39174B1 PL 39174 A PL39174 A PL 39174A PL 3917455 A PL3917455 A PL 3917455A PL 39174 B1 PL39174 B1 PL 39174B1
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PL
Poland
Prior art keywords
parts
weight
diaphragms
potassium ferrocyanide
oxidation
Prior art date
Application number
PL39174A
Other languages
Polish (pl)
Filing date
Publication date
Application filed filed Critical
Publication of PL39174B1 publication Critical patent/PL39174B1/pl

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Description

Opublikowano dnia 30 maja 1956 r.******* Jot* 3/^0 POLSKIEJ RZECZYPOSPOLITEJ LUDOWEJ OPIS PATENTOWY Nr 39174 KI. 12 h, 3 Wojewódzki Zwiazek Spóldzielni Pracy *) Bydgoszcz, Polska Sposób wyrobu przepon do elektrolizy, zwlaszcza do elektrolitycznego utle¬ niania zelazocyjanku potasii na zelazicyjanek potasu Patent trwa od dnia 25 lipca 1955 r.Znane przepony do elektrolizy zwlaszcza do elektrolitycznego utleniania zelazocyjanku po¬ tasu na zelazicyjanek nie nadaja sie do szersze¬ go stosowania, gdyz nie wykazuja dostatecznej wytrzymalosci mechanicznej badz tez zanie¬ czyszczaja otrzymywany produkt. Do ich wyro¬ bu proponowano stosowac azbest nasycony kwa¬ sem krzemowym lub krzemionke, tlenek glino¬ wy, tlenek zelaza itd.Stwierdzono, ze przepony uformowane z pro¬ szkowanej mieszaniny zawierajacej okolo 50 czesci wagowych kaolinu, 40% czesci wagowych dwutlenku krzemu i 10% czesci wagowych spro¬ szkowanej masy porcelanowej, przesianej przez sito o 4 900 oozlkach na 1 cm2 i wypalone w tem¬ peraturze okolo 700° C usuwaja wspomniane nie¬ dogodnosci, a mianowicie sa one wytrzymale i daja zelazicyjanek potasu o czystosci nadajacej sie do analizy.Przepony wykonane sposobem wedlug wyna¬ lazku sa bardzo trwale, nie wykazujac sladów zuzycia i daja wysoka wydajnosc pradowa do¬ chodzaca do 94%. Ponadto wydajnosc elektro¬ lizy jest równiez wysoka wynosi bowiem 93% wydajnosci teoretycznej. PLPublished on May 30, 1956. ******* Jot * 3 / ^ 0 POLISH PEOPLE'S REPUBLIC PATENT DESCRIPTION No. 39174 KI. 12 h, 3 Wojewódzki Związek Spóldzielni Pracy *) Bydgoszcz, Poland Method of making electrolysis diaphragms, especially for electrolytic oxidation of potassium iron cyanide to potassium iron cyanide Patent valid since 25 July 1955 Known electrolysis diaphragms, especially for electrolytic iron oxidation The ferric cyanide potassium is not suitable for wider use, because it does not show sufficient mechanical strength or it contaminates the obtained product. For their manufacture it has been proposed to use asbestos saturated with silicic acid or silica, alumina, iron oxide, etc. It has been found that diaphragms formed from a glazed mixture containing about 50 parts by weight kaolin, 40 parts by weight silicon dioxide and 10 The percent by weight of the pulverized porcelain mass, sieved through a sieve with 4,900 beds per cm2 and fired at a temperature of about 700 ° C, remove the above-mentioned disadvantages, namely they are strong and give potassium ferrocyanide with a purity suitable for analysis The diaphragms made according to the invention are very durable, show no signs of wear, and give a high current efficiency of up to 94%. Moreover, the electrolysis efficiency is also high, being 93% of the theoretical one. PL

Claims (1)

1. Zastrzezenie patentowe Sposób wyrobu przepon do elektrolizy, zwlasz¬ cza do utleniania zelazocyjanku potasu na zela¬ zicyjanek potasu, znamienny tym, ze sproszko¬ wana mieszanine 50 czesci wagowych kaolinu, 40 czesci wagowych dwutlenku krzemu i 10 cze¬ sci wagowych sproszkowanej porcelany przesie¬ wa sie przez sito o 4.900 oczkach na 1 cm2, for¬ muje z niej przepony o pozadanym ksztalcie i wypala w temperaturze okolo 700° C. Wojewódzki Zwiazek Spóldzielni Pracy Zastepca: Kolegium Rzeczników Patentowych *) Wlasciciel patentu oswiadczyl, ze twórca wynalazku jest dr Stefan Obarski. RSW „Prasa" Bydg. 28.Claim 1. A method of producing electrolysis diaphragms, in particular for the oxidation of potassium ferrocyanide to potassium ferrocyanide, characterized in that a pulverized mixture of 50 parts by weight kaolin, 40 parts by weight silicon dioxide and 10 parts by weight porcelain powder is screened It is made through a sieve with 4,900 meshes per 1 cm2, it is used to form diaphragms of the desired shape and fired at a temperature of about 700 ° C. Provincial Association of Labor Cooperatives Deputy: Collegium of Patent Attorneys *) The patent owner stated that the inventor is Dr. Stefan Obarski. RSW "Press" Bydgoszcz 28. 1. 56, nakl. 100+23, f. B-5, pap. druk. III ki. zam. 522 PL1. 56, nakl. 100 + 23, f. B-5, pap. printing. III ki. residing 522 PL
PL39174A 1955-07-25 PL39174B1 (en)

Publications (1)

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PL39174B1 true PL39174B1 (en) 1955-12-15

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