TY - JOUR

T1 - Effect of Firing Rate on the Properties of Chamotte from Kyshtym Deposit Kaolin

AU - Yakovleva, O. V.

AU - Kashcheev, I. D.

AU - Zemlyanoi, K. G.

PY - 2022/9/1

Y1 - 2022/9/1

N2 - The effect of firing rate for Kyshtym deposit enriched kaolin on chamotte properties is investigated. The specific nature of Kyshtym deposit kaolin is the petrographic diversity of the original rocks that has an unfavorable effect on its quality as a refractory raw material. Kaolin plastic properties are studied that make it possible to form a briquette without additional use of any binders, including water. Astudy of the rate, final firing temperature, and holding time at the final temperature show that the rate of temperature increase during chamotte firing does not significantly affect resultant chamotte quality. At the same time an increase in final temperature and holding time significantly affect chamotte quality and phase composition, naturally increasing the yield of mullite and reducing the amount of non-regenerated free SiO2. It is established that the maximum firing temperature for enriched kaolin of the Kyshtym deposit based on chamotte may be considered to be a maximum temperature of 1350 – 1400°C and a rate of temperature increase of 35 – 45°C/min.

AB - The effect of firing rate for Kyshtym deposit enriched kaolin on chamotte properties is investigated. The specific nature of Kyshtym deposit kaolin is the petrographic diversity of the original rocks that has an unfavorable effect on its quality as a refractory raw material. Kaolin plastic properties are studied that make it possible to form a briquette without additional use of any binders, including water. Astudy of the rate, final firing temperature, and holding time at the final temperature show that the rate of temperature increase during chamotte firing does not significantly affect resultant chamotte quality. At the same time an increase in final temperature and holding time significantly affect chamotte quality and phase composition, naturally increasing the yield of mullite and reducing the amount of non-regenerated free SiO2. It is established that the maximum firing temperature for enriched kaolin of the Kyshtym deposit based on chamotte may be considered to be a maximum temperature of 1350 – 1400°C and a rate of temperature increase of 35 – 45°C/min.

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85144592088

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000904900800003

UR - https://elibrary.ru/item.asp?id=52074345

U2 - 10.1007/s11148-022-00716-7

DO - 10.1007/s11148-022-00716-7

M3 - Article

VL - 63

SP - 252

EP - 255

JO - Refractories and Industrial Ceramics

JF - Refractories and Industrial Ceramics

SN - 1083-4877

IS - 3

ER -