RO97958B1 - Electrochemical process for dextrane oxidation - Google Patents

Electrochemical process for dextrane oxidation

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Publication number
RO97958B1
RO97958B1 RO129598A RO12959887A RO97958B1 RO 97958 B1 RO97958 B1 RO 97958B1 RO 129598 A RO129598 A RO 129598A RO 12959887 A RO12959887 A RO 12959887A RO 97958 B1 RO97958 B1 RO 97958B1
Authority
RO
Romania
Prior art keywords
iodine
dextran
oxidation
bromide
dextrane
Prior art date
Application number
RO129598A
Other languages
Romanian (ro)
Inventor
Ion Radoi
Gheorghe-Reinhold Fagadar-Cosma
Ion Taranu
Nicolae Vaszilcsin
Viorel Mircea Craciun
Original Assignee
Institutul De Energetica Chimica Si Biochimica
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 Institutul De Energetica Chimica Si Biochimica filed Critical Institutul De Energetica Chimica Si Biochimica
Priority to RO129598A priority Critical patent/RO97958B1/en
Publication of RO97958B1 publication Critical patent/RO97958B1/en

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Abstract

Inventia s erefera la un procedeu de oxidare pe cale electrochimica a dextranului cu masa moleculara mica (2000...5000), într-o solutei apoasa de clorura de soidiu. Ca agent de oxidare se foloseste iodul sau bromul generat electrochimic din iodura, respectiv bromura. cele mai bune rezultate se obtin în cazul folosirii iodului. procedeul, conform inventiei prevede utilizarea iodurii sau bromurii în concentratie mica (0,01...0,1 M), la sensitati ale curentului anodic cuprinse între 50 si 500 A/m2, corespunzatoare concentratiilor de dextran cuprinse între 200 si 50 g/l. Caracterul reducator al dextranului oxidat ajunge pâna la 0,5...1,5% glucoza în cazul folosirii iodurii si 1...2% în cazul bromurarii, produsul obtinut separându-se din amestecul de reactie prin precipitare cu etanol.The invention relates to an electrochemical oxidation process of low molecular weight dextran (2000 ... 5000) in an aqueous solution of soybean chloride. Oxidation agent uses iodine or bromine electrochemically generated from iodine and bromide, respectively. the best results are obtained with the use of iodine. the process according to the invention provides the use of iodide or bromide at low concentration (0.01 ... 0.1 M) at anode current sensations ranging from 50 to 500 A / m2, corresponding to dextran concentrations of between 200 and 50 g / it. Reduction of oxidized dextran reaches 0.5 to 1.5% glucose when iodine is used and 1-2% for bromination, the product obtained being separated from the reaction mixture by precipitation with ethanol.

RO129598A 1987-08-31 1987-08-31 Electrochemical process for dextrane oxidation RO97958B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO129598A RO97958B1 (en) 1987-08-31 1987-08-31 Electrochemical process for dextrane oxidation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO129598A RO97958B1 (en) 1987-08-31 1987-08-31 Electrochemical process for dextrane oxidation

Publications (1)

Publication Number Publication Date
RO97958B1 true RO97958B1 (en) 1989-10-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
RO129598A RO97958B1 (en) 1987-08-31 1987-08-31 Electrochemical process for dextrane oxidation

Country Status (1)

Country Link
RO (1) RO97958B1 (en)

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