PL146898B3 - Method of obtaining ferrous gluconate - Google Patents

Method of obtaining ferrous gluconate Download PDF

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Publication number
PL146898B3
PL146898B3 PL1986258275A PL25827586A PL146898B3 PL 146898 B3 PL146898 B3 PL 146898B3 PL 1986258275 A PL1986258275 A PL 1986258275A PL 25827586 A PL25827586 A PL 25827586A PL 146898 B3 PL146898 B3 PL 146898B3
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PL
Poland
Prior art keywords
gluconic acid
organic solvent
iron
ferrous gluconate
electrolyte
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Application number
PL1986258275A
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Polish (pl)
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Priority to PL1986258275A priority Critical patent/PL146898B3/en
Publication of PL146898B3 publication Critical patent/PL146898B3/en

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Description

Opis patentowy opublikowano: 89 07 31 146 898 CZYTELNIA Uricdv Patentowego Int. CL4 C07c 59/105 C25B 3/12 Twórcy wynalazku: Zbigniew Ratajewioz, Józef Sawa Uprawniony z patentu: Politechnika Lubelska, Lublin (Polska) SPOSÓB OTRZYMYWANIA GLUKONIAflU ZELAZAWEGO Przedmiotem patentu nr 140 484 jest sposób otrzymywania glukonianu zelazawego.Polega on na prowadzeniu reakoji elektrochemicznej z zastosowaniem elektrod z zelaza lub stali niskoweglowej w roztworze kwasu glukonowego i przepuszczaniu pradu elektryoznego zwlaszoza przemiennego* Jako elektrolit stosuje sie mieszanine wody z rozpuszczalnikiem or¬ ganicznym zwlaszcza acetonem w ilosci 0,5 - 50% wagowo rozpuszczalnika organicznego, oraz 2 - 50% wagowo kwasu glukonowego, a gestosc pradu anodowego utrzymywanego w procesie wyno¬ si 0,2 - 4 A/dm . Proces prowadzi sie w podwyzszonej temperaturze w atmosferze nieutlenia- jacej, zwlaszcza wytworzonej z COp, H2 i/lub Np.W toku dalszych badan nad otrzymywaniem glukonianu zelazawego stwierdzono, ze zastoso¬ wanie jako rozpuszczalnika organioznego w roztworze wodno-organicznym kwasu glukonowego przy roztwarzaniu anodowym zelazafmetanolu i/lub jego mieszaniny z acetonem lub etanolem daje korzysci w postaci znaoznego prscrspieszenia procesu oraz otrzymywanie w jednej ope- raoji glukonianu zelazawego o znacznej czystosci.Przyklad. Do zamknietego elektrolizera o pojemnosci 0,6 dm', przez który prze¬ plywa strumien azotu wprowadzono dwie elektrody z metalicznego zelaza oraz 0f5 dm^ roztwo¬ ru 1 molowego kwasu glukonowego w rozpuszczalniku wodno-*aetanolowo-^tanolowym o zawartosci metanolu 10% i etanolu 10%. Przeprowadzono anodowe roztwarzanie zelaza w temperaturze 323 K pradem stalym o gestosoi 1 A/dm . Po uplywie 14 godzin stezony roztwór glukonianu zelaza¬ wego przefiltrowano i pozostawiono do kiystalizaoji. Otrzymany glukonian zelazawy oddzie¬ lono od lugów pokiystalicznych, przemyto aoetonem i wysuszono. Lugi pokrystaliczne po uzu¬ pelnieniu zawartosci kwasu glukonowego zawrócono do elektrolizera. Gotowy produkt zawieral ilosoiowo 97% glukonianu zelazawego i nie zawieral oznaozalnych ilosci jonów wapniowych, siarczanowyoh, ohlorkowyoh. Zawartosc jonów zelazowych Fe+,H" nie przekraczala 0,2%» Prooes anodowy przebiega z 75% wydajnosoia pradowa• 146 8962 146 898 PLThe patent description was published: 89 07 31 146 898 READING ROOM Uricdv Patent Int. CL4 C07c 59/105 C25B 3/12 Inventors: Zbigniew Ratajewioz, Józef Sawa The holder of the patent: Lublin University of Technology, Lublin (Poland) METHOD OF OBTAINING IRON GLUCONIAFLUE OF IRON No. 140 484 is a method of obtaining ferrous gluconate. It consists in conducting an electrochemical reaction with the use of iron or low-carbon steel electrodes in a solution of gluconic acid and passing an electric current in an alternating way * As an electrolyte, a mixture of water with an organic solvent, especially acetone, in the amount of 0.5 - 50% by weight of organic solvent and 2 - 50% by weight of gluconic acid, and the density of the anode current maintained in the process is 0.2 - 4 amps / dm. The process is carried out at an elevated temperature in a non-oxidizing atmosphere, especially made of COp, H2 and / or, for example, in the course of further research on the preparation of ferrous gluconate, it was found that the use of an organic solvent in an aqueous-organic solution of gluconic acid in anodic digestion Ferrous methanol and / or its mixture with acetone or ethanol has the advantage of significantly accelerating the process and obtaining ferrous gluconate of considerable purity in one operation. Two metallic iron electrodes and 0.5 dm3 of a 1 molar gluconic acid solution in a water-aethanol-tanol solvent with a methanol content of 10% were introduced into a closed electrolyser with a capacity of 0.6 dm3, through which the nitrogen stream flows. ethanol 10%. Anodic digestion of iron was carried out at the temperature of 323 K with a constant current of 1 A / dm. After 14 hours, the concentrated ferric gluconate solution was filtered and allowed to crystallize. The obtained ferric gluconate was separated from the post-crystalline liquors, washed with acetone and dried. The crystalline liquors, after replenishing the gluconic acid content, were returned to the electrolyser. The finished product contained 97% of ferrous gluconate in quantity and no appreciable amounts of calcium, sulphate and chloride ions. The content of iron ions Fe +, H "did not exceed 0.2%» Anodic proof runs with 75% current efficiency • 146 8962 146 898 PL

Claims (1)

1. Zastrzezenie patentowe . Sposób otrzymywania glukonianu zelazawego polegajacy na prowadzeniu elektrolizy roztwo¬ ru kwasu glukonowego z uzyciem elektrod z zelaza lub stali niskoweglowej przepuszczajac przez elektrolit prad zwlaszcza przemienny, przy czym elektrolit stanowi mieszanina wody z rozpuszczalnikiem organicznym, zawierajaca 0,5 - 50£ wagowo rozpuszczalnika organicznego oraz 2 - 30% kwasu glukonowego, gestosc pradu anodowego wynosi 0,2 do 4 A/dm , a proces pro¬ wadzi sie w atmosferze nie utleniajacej, zwlaszcza wytworzonej z COp, Hp i/lub JU wedlug pa¬ tentu nr 140 484, znamienny tym, ze rozpuszczalnikiem organicznym w roztworze wodno-organicznym kwasu glukonowego przy roztwarzaniu anodowym zelaza jest metanol i/lub jego mieszaniny z acetonem lub etanolem* Pracownia Poligraficzna UP PRL. Naklad 100 egz. Cena 400 zl PL1. Patent claim. The method of obtaining ferrous gluconate consisting in electrolysis of a gluconic acid solution with the use of iron or low carbon steel electrodes by passing an alternating current through the electrolyte, the electrolyte being a mixture of water with an organic solvent, containing 0.5 - 50 £ by weight of an organic solvent and 2 - 30% of gluconic acid, the density of the anode current is 0.2 to 4 A / dm, and the process is carried out in a non-oxidizing atmosphere, especially made of COp, Hp and / or JU according to patent no. 140,484, characterized by , with the organic solvent in the aqueous-organic solution of gluconic acid in the anodic digestion of iron is methanol and / or its mixtures with acetone or ethanol * Pracownia Poligraficzna UP PRL. Mintage 100 copies. Price PLN 400 PL
PL1986258275A 1986-03-05 1986-03-05 Method of obtaining ferrous gluconate PL146898B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL1986258275A PL146898B3 (en) 1986-03-05 1986-03-05 Method of obtaining ferrous gluconate

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Application Number Priority Date Filing Date Title
PL1986258275A PL146898B3 (en) 1986-03-05 1986-03-05 Method of obtaining ferrous gluconate

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PL146898B3 true PL146898B3 (en) 1989-03-31

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