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- Title
Phase Transformations in the Diatomite-Orthophosphoric Acid System on Heating at 800 – 1400°C.
- Authors
Kashcheev, I. D.; Glyzina, A. E.; Ust'yantsev, V. M.
- Abstract
Properties of diatomite from the Il'yinsk deposit (Sverdlovsk region) and the effect of orthophosphoric acid (OPA) on it are studied. It is established that in the OPA-diatomite system on firing at 1400°C with an increase in OPA concentration in an aqueous solution the cristobalite content reaches 70 – 71%. Diatomite samples formed in an aqueous solution of OPA do not break down or melt at a heating temperature of 1400°C, while specimens without OPA begin to melt on heating above 900°C.
- Subjects
EKATERINBURG (Russia); PHASE transitions; HEATING; DIATOMACEOUS earth; AQUEOUS solutions; CRISTOBALITE; PHOSPHORIC acid
- Publication
Refractories & Industrial Ceramics, 2022, Vol 63, Issue 2, p156
- ISSN
1083-4877
- Publication type
Article
- DOI
10.1007/s11148-022-00698-6