Changes of surface properties of calcite particles with calcium stearate using conventional experimental design and properties of coated calcite

• Autorzy: Ucurum M. , Bayram O. , Toraman O. Y , Kılıc H. , Yalcın S.

Identyfikatory

DOI

10.5277/ppmp1866

• Języki publikacji: EN

Abstrakty

EN

Calcite is utilized as a filler mineral in the industries such as plastics, rubber, and paint, to gain products with a variety of features. In order to use a calcite ore as a filler, some specific physical and physico-chemical properties are required such as ultra-fine sizes and conversion of hydrophilic to hydrophobic structure. In the present study, for these purposes, surfaces of the ultra-fine calcite powder (d50=2.94 μm) were coated by a mechano-chemical process with calcium stearate [Ca(C17H35COO)2] in a stirred ball mill. The influence of operating parameters such as calcite filling-ratio, ball-filling ratio, operation speed, grinding time and chemical dosage on the active ratio (%) was systematically examined. Then, the properties of modified calcite product were measured and evaluated by contact angle, TGA, DTA, FTIR, and SEM. The results showed that the mechano-chemical technology is very effective for modifying the surface of micronized calcite products using calcium stearate chemical.

Słowa kluczowe

EN

calcite; surface modification; mechano-chemical; calcium stearate; properties of modified calcite

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2018
• Tom: Vol. 54, iss. 3
• Strony: 688--700
• Opis fizyczny: Bibliogr. 33 poz., rys., tab.

Twórcy

autor

Ucurum M.

• Bayburt University, Industrial Engineering Department, Bayburt, Turkey

autor

Bayram O.

• Bayburt University, Materials Science and Nanotechnology Engineering Department, Bayburt, Turkey

autor

Toraman O. Y

• Niğde Ömer Halisdemir University, Mining Engineering Department, Niğde, Turkey

autor

Kılıc H.

• Niğde Ömer Halisdemir University, Mining Engineering Department, Niğde, Turkey

autor

Yalcın S.

• Niğde Ömer Halisdemir University, Mining Engineering Department, Niğde, Turkey

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