Abstract— In this study, the effects of liquid additives such as water, triethanolamine (TEA) and ethylene glycol (EG) on the dry fine grinding of calcite were investigated by using a laboratory scale vertical stirred mill. The experiments were carried out by a batch operation, and the change in average particle size (D50) and specific surface area (SSA) (m2/g) and colour properties (L*, a*, b*, ∆E, WI) of product. The results show that the chemical additives and water promotes the fine grinding of calcite and that the maximum specific surface area of calcite (2.97 m2/g) obtained with EG additives 0.5%. The average particle size at this point was 3.16 µm. The results also show that the lightness (L) values of the ground calcite products slightly increased from 97.62 to 98.53 with grinding aids (TEA) increased from 0% to 0.5%. The whiteness index (WI) value of the ground calcite products slightly increased from 97.41 to 98.25 with grinding aids (TEA).
Keywords— Stirred mill, fine grinding, calcite, grinding aid, fineness, surface area, colour properties.
AD Publications is a rapidly growing academic publisher in the fields of Engineering, Medical-Health, Environmental Science and Agriculture Research. AD Publications is a registered organization broad-based open access and publishes most exciting researches with respect to the subjects of our journals. The Journals is being indexed and abstracted by all major global current awareness and alerting services.
The organization aims at undertaking, co- coordinating and promoting research and development. It provides professional and academic guidance in the field of basic education, Higher Education as well in the Technical Education. Our Aims is to Promote and support, High Quality basic, Scientific Research and development in fields of Engineering, Medical-Health, Environmental Science and Agriculture Research and to Generate Public awareness, provide advice to scholar’s researchers and communicate research outcomes.