Chemistry & Chemical Technology. – 2015. – Vol. 9, No. 4

Permanent URI for this collectionhttps://ena.lpnu.ua/handle/ntb/31617

The scientific-technical journal

It is the scientific-technical journal in English in Ukraine discussing actual problems of chemistry and chemical technology. Compared with other chemical journals Ch&ChT is publishing materials of both theoretical and practical values in such fields as analytical, general organic, physical and inorganic chemistry; chemistry of high molecular compounds; materials science and engineering; chemical kinetics and catalysis; technology of inorganic substances; technology of organic synthesis products; chemical technology of processing of combustible minerals; processes and apparatus of chemical and food productions; biotechnology and ecology.

Chemistry & Chemical Technology : [the scientific-technical journal] / Lviv Polytechnic National University ; editor-in-chief M. Bratychak. – Lviv : Publishing House of Lviv Polytechnic National University, 2015. – Volume 9, number 4. – P. 391–507, VII : ill.

Browse

Filters

20151

Settings

Subject: search.filters.subject.ferrum(II)

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    Item
    Kinetics of ferrum(II) ions oxidation by air oxygen іn water in horizontal absorber with bucket-like dispersers
    (Publishing House of Lviv Polytechnic National University, 2015) Yavorskiy, V.; Kalymon, Ya.; Rubai, O.
    The oxidation rate of ferrum(II) to ferrum(III) by air oxygen in water has been investigated in the horizontal absorber with bucket-like dispersers. The reaction order relative to Fe2+ and –OH ions has been determined based on established dependencies of ferrum(II) ions concentration on dispersion time at their various initial concentrations and medium pH. It has been shown for the first time that at pH = 5.5–6.2 in water during oxidation of ferrum(II) ions an autocatalysis occurs due to the formed ferrum(III) ions. Досліджено швидкість окиснення у воді йонів Феруму(ІІ) до Феруму(ІІІ) киснем повітря у горизон- тальному абсорбері з ковшоподібними диспергаторами. На основі встановлених залежностей концентрацій йонів Феруму(ІІ) у досліджуваній воді від часу диспергування за різних їх початковому вмісту та рН визначено порядок реакції за йонами Fe2+ та ОН-. Вперше встановлено, що в об‘ємі води за рН = 5,5–6,2 при окисненні йонів Феруму(ІІ) має місце явище автокаталізу завдяки утвореним йонам Феруму(ІІІ).