|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|175368||458909||2016||5 صفحه PDF||سفارش دهید||دانلود رایگان|
• A new short sulfate process was proposed to produce TiO2 pigment by using unenriched low concentration TiOSO4 solution.
• The prepared rutile TiO2 white pigment was with narrow particle size distribution and excellent pigment properties.
• The effects of calcination intensity on structure and pigment properties for rutile TiO2 were investigated in detail.
• The mathematical relation model between structure parameters and calcination intensity was revealed at great length.
The rutile titanium dioxide pigment was produced via short sulfate process from unenriched industrial titanyl sulfate solution as raw material. The effects of calcination intensity after crystal transformation on the crystal structure, particle size distribution and pigment performances were investigated. The samples were characterized by TG-DSC, XRD, SEM, particle size distribution test and pigment properties test. The crystal grain size and content for rutile pigment gradually grew as the calcination intensity increasing, with a positive linear correlation. While the blue phase index is negative linear correlation with calcination time. The optimized calcining time at 860 °C for rutile pigment production is of 40 min, corresponding calcination intensity of 1,34,277 K min, and the as-prepared rutile pigment is with the grain size of 110.8 nm, rutile content of 98.3%, suitable and narrow particle size distribution, and the best pigment performances.
Journal: Dyes and Pigments - Volume 133, October 2016, Pages 60–64