Саноатда рақамли технологиялар 4-jild 2-son (2026) · 74-80-betlar

THERMODYNAMIC BASIS OF SELECTIVE ARSENIC REMOVAL FROM IRON OXIDE PIGMENTS OBTAINED FROM BIO-OXIDATION SOLUTIONS

Toshkodirova, Rano Erkinjonovna, Kenjayeva, Sevara Absamatovna, Тошкодирова, Рано Эркинжоновна, Кенжаева, Севара Абсаматовна, Toshqodirova, Rano Erkinjonovna, Kenjayeva, Sevara Absamatovna

Manbada oʻqish PDF

Annotatsiya

This paper investigates the thermodynamic principles of selective arsenic removal from iron oxide pigments obtained from technogenic solutions generated during the neutralization of bio-oxidation products. The temperature dependence of Gibbs free energy for reactions involving sodium sulfide was analyzed to evaluate the thermodynamic stability of iron- and arsenic-containing compounds. The calculations demonstrated that arsenic-bearing phases readily transform into sulfide compounds, whereas iron compounds remain thermodynamically stable. The optimal temperature range for selective arsenic removal was determined to be 40–60 °C. The obtained results provide a scientific basis for improving environmentally friendly technologies for processing bio-oxidation solutions and producing iron oxide pigments with reduced toxic impurity content.

bio-oxidationtechnogenic solutioniron oxide pigmentarsenicsodium sulfideGibbs free energythermodynamic analysisselective purificationenvironmental safetymetallurgical waste

Metadata manbasi: jurnal OAI-PMH arxivi · Sindex toʻliq matnni saqlamaydi, manbaga havola beradi.

Iqtibos olish

APA 7 
Toshkodirova, Rano Erkinjonovna, Kenjayeva, Sevara Absamatovna, Тошкодирова, Рано Эркинжоновна, Кенжаева, Севара Абсаматовна, Toshqodirova, Rano Erkinjonovna & Kenjayeva, Sevara Absamatovna (2026). THERMODYNAMIC BASIS OF SELECTIVE ARSENIC REMOVAL FROM IRON OXIDE PIGMENTS OBTAINED FROM BIO-OXIDATION SOLUTIONS. Саноатда рақамли технологиялар, 4(2), 74-80.
GOST R 7.0.5 
Toshkodirova, Rano Erkinjonovna, Kenjayeva, Sevara Absamatovna, Тошкодирова, Рано Эркинжоновна, Кенжаева, Севара Абсаматовна, Toshqodirova, Rano Erkinjonovna, Kenjayeva, Sevara Absamatovna THERMODYNAMIC BASIS OF SELECTIVE ARSENIC REMOVAL FROM IRON OXIDE PIGMENTS OBTAINED FROM BIO-OXIDATION SOLUTIONS // Саноатда рақамли технологиялар. 2026. Т. 4. № 2. С. 74-80.
BibTeX 
@article{erkinjonovna2026,
  author  = {Toshkodirova, Rano Erkinjonovna and Kenjayeva, Sevara Absamatovna and Тошкодирова, Рано Эркинжоновна and Кенжаева, Севара Абсаматовна and Toshqodirova, Rano Erkinjonovna and Kenjayeva, Sevara Absamatovna},
  title   = {THERMODYNAMIC BASIS OF SELECTIVE ARSENIC REMOVAL FROM IRON OXIDE PIGMENTS OBTAINED FROM BIO-OXIDATION SOLUTIONS},
  journal = {Саноатда рақамли технологиялар},
  year    = {2026},
  volume  = {4},
  number  = {2},
  pages   = {74-80}
}
RIS 
TY  - JOUR
AU  - Toshkodirova, Rano Erkinjonovna
AU  - Kenjayeva, Sevara Absamatovna
AU  - Тошкодирова, Рано Эркинжоновна
AU  - Кенжаева, Севара Абсаматовна
AU  - Toshqodirova, Rano Erkinjonovna
AU  - Kenjayeva, Sevara Absamatovna
TI  - THERMODYNAMIC BASIS OF SELECTIVE ARSENIC REMOVAL FROM IRON OXIDE PIGMENTS OBTAINED FROM BIO-OXIDATION SOLUTIONS
JO  - Саноатда рақамли технологиялар
PY  - 2026
VL  - 4
IS  - 2
SP  - 74
EP  - 80
ER  -