Physicochemical Problems of Mineral Processing, May 4, 2023
This paper investigates the production of a micronized muscovite to a target product size of d50~... more This paper investigates the production of a micronized muscovite to a target product size of d50~15 µm with a minimum energy consumption to suit the product requirements of the paint industry by a dry grinding process in a laboratory-scale vertical stirred ball mill. A series of batch dry grinding tests were conducted without and with two commonly used industrial liquid grinding aids, ethylene glycol (EG, C2H6O2) and triethanolamine (TEA, C6H15NO3). The results were evaluated based on particle size distribution (PSD), specific energy consumption, span value, and aspect ratio. The results showed that using liquid grinding aids resulted in a finer PSD, lower specific energy consumption, a narrower size distribution, lower span values, and a higher aspect ratio, which meant better delamination and improved grinding efficiency to that of no grinding aid. The interaction between grinding aids and ground muscovite surfaces was investigated by Fourier Transform Infrared Spectroscopy (FTIR). FTIR measurements revealed that EG and TEA were physically adsorbed on muscovite surfaces. Scanning Electron Microscopy (SEM) was also employed to determine differences between ground muscovite surfaces with and without grinding aids. SEM images indicated that grinding aids could prevent the agglomeration of ground muscovite particles while improving delamination. Adding grinding aids led to a decrease in muscovite agglomeration and an improvement in lamination owing to the adsorption of grinding aids on the particle surfaces.
Mineral Processing and Extractive Metallurgy, 2004
The effects of ultrasonic waves on the flotation of calcite, barite and quartz have been investig... more The effects of ultrasonic waves on the flotation of calcite, barite and quartz have been investigated in the case of single and mixed minerals. In the case of single minerals, ultrasonic treatment has a positive effect in the flotation performance of calcite and barite, while showing a ...
Energy Sources Part a Recovery Utilization and Environmental Effects, 2010
... Flotation , Colorado: AIME. View all references; Bolat et al., 1998b12. Bolat, E., Sağlam, S.... more ... Flotation , Colorado: AIME. View all references; Bolat et al., 1998b12. Bolat, E., Sağlam, S. and Pişkin, S. 1998b. ... Similiar results concerning MIBC were reported for Hazro coal (Ayhan et al., 20059. Ayhan, FD, Abakay, H. and Saydut, A. 2005. ...
The use of rhyolite from a local source as an alternative fluxing agent in a commercial porcelain... more The use of rhyolite from a local source as an alternative fluxing agent in a commercial porcelain stoneware formulation was investigated. The experimental work was achieved in two parts: in the first part, standard tests were applied to the porcelain tiles obtained from the experimental bodies incorporated with varying amounts of rhyolite (up to 12 wt. %) as a substitution of albite in the standard formulation after single fast-firing under industrial conditions. Reactions during firing were studied by thermal analysis (DTA/TGA/DTG). The vitrification behaviour of the standard and rhyolite containing bodies was evaluated using a double-beam optical non-contact dilatometer. In addition, XRD was used to analyse the phases formed after firing. SEM was also employed in order to observe the microstructural characteristics of the selected fired bodies with respect to increasing rhyolite content. In the second part, the most suitable rhyolite containing formulation was further developed by modifying its clay fraction for cost saving purposes. Physical, thermal and optical properties of the all the investigated bodies such as water absorption, linear firing shrinkage, bulk density, linear thermal expansion coefficient and chromatic coordinates were measured. According to the results, it was possible to incorporate rhyolite into a porcelain stoneware formulation as a fluxing agent and to obtain meaningful technological properties.
2011 International Symposium on Innovations in Intelligent Systems and Applications, 2011
2 0 1 1 I n t e r n a t i o n a l S y m p o s i u m o n I N n o v a t i o n s i n I n t e l l i g... more 2 0 1 1 I n t e r n a t i o n a l S y m p o s i u m o n I N n o v a t i o n s i n I n t e l l i g e n t S y s T e m s a n d A p p l i c a t i o n s 2 0 1 1 I n t e r n a t i o n a l S y m p o s i u m o n I N n o v a t i o n s i n I n t e l l i g e n t S y s T e m s a n d A p p l i c a t i o n s O r g a n i z e d b y I n c o o p e r a t i o n w i t h S p o n s o r s
... V. Bozkurt Corresponding Author Contact Information , a , E-mail The Corresponding Author , Y... more ... V. Bozkurt Corresponding Author Contact Information , a , E-mail The Corresponding Author , Y. Ucbas a , S. Koca a and H. Ipek a. ... and feldspar bearing rocks such as pegmatite, granite, syenite and trachyte have been intensified in last decade (Bayraktar et al., 1997, Gulsoy et al ...
Adsorption and orientation of ethyl xanthate on a copper electrode was studied using an in situ s... more Adsorption and orientation of ethyl xanthate on a copper electrode was studied using an in situ spectroelectrochemical set up. Cuprous xanthate was identified to be the major product over the potential range − 0.5 to − 0.1 V (SCE). A further increase in electrode potential to 0.1 V resulted in the formation of dixanthogen in addition to cuprous xanthate. The characteristic dixanthogen bands disappeared and the intensity of cuprous xanthate bands increased when the potential was brought back and held at −1.0 V. With polarized radiation, the spectral appearance of cuprous xanthate changed in contrast to that of dixanthogen, suggesting preferential orientation of cuprous xanthate molecules but random orientation for dixanthogen.
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2010
... Flotation , Colorado: AIME. View all references; Bolat et al., 1998b12. Bolat, E., Sağlam, S.... more ... Flotation , Colorado: AIME. View all references; Bolat et al., 1998b12. Bolat, E., Sağlam, S. and Pişkin, S. 1998b. ... Similiar results concerning MIBC were reported for Hazro coal (Ayhan et al., 20059. Ayhan, FD, Abakay, H. and Saydut, A. 2005. ...
Physicochemical Problems of Mineral Processing, May 4, 2023
This paper investigates the production of a micronized muscovite to a target product size of d50~... more This paper investigates the production of a micronized muscovite to a target product size of d50~15 µm with a minimum energy consumption to suit the product requirements of the paint industry by a dry grinding process in a laboratory-scale vertical stirred ball mill. A series of batch dry grinding tests were conducted without and with two commonly used industrial liquid grinding aids, ethylene glycol (EG, C2H6O2) and triethanolamine (TEA, C6H15NO3). The results were evaluated based on particle size distribution (PSD), specific energy consumption, span value, and aspect ratio. The results showed that using liquid grinding aids resulted in a finer PSD, lower specific energy consumption, a narrower size distribution, lower span values, and a higher aspect ratio, which meant better delamination and improved grinding efficiency to that of no grinding aid. The interaction between grinding aids and ground muscovite surfaces was investigated by Fourier Transform Infrared Spectroscopy (FTIR). FTIR measurements revealed that EG and TEA were physically adsorbed on muscovite surfaces. Scanning Electron Microscopy (SEM) was also employed to determine differences between ground muscovite surfaces with and without grinding aids. SEM images indicated that grinding aids could prevent the agglomeration of ground muscovite particles while improving delamination. Adding grinding aids led to a decrease in muscovite agglomeration and an improvement in lamination owing to the adsorption of grinding aids on the particle surfaces.
Mineral Processing and Extractive Metallurgy, 2004
The effects of ultrasonic waves on the flotation of calcite, barite and quartz have been investig... more The effects of ultrasonic waves on the flotation of calcite, barite and quartz have been investigated in the case of single and mixed minerals. In the case of single minerals, ultrasonic treatment has a positive effect in the flotation performance of calcite and barite, while showing a ...
Energy Sources Part a Recovery Utilization and Environmental Effects, 2010
... Flotation , Colorado: AIME. View all references; Bolat et al., 1998b12. Bolat, E., Sağlam, S.... more ... Flotation , Colorado: AIME. View all references; Bolat et al., 1998b12. Bolat, E., Sağlam, S. and Pişkin, S. 1998b. ... Similiar results concerning MIBC were reported for Hazro coal (Ayhan et al., 20059. Ayhan, FD, Abakay, H. and Saydut, A. 2005. ...
The use of rhyolite from a local source as an alternative fluxing agent in a commercial porcelain... more The use of rhyolite from a local source as an alternative fluxing agent in a commercial porcelain stoneware formulation was investigated. The experimental work was achieved in two parts: in the first part, standard tests were applied to the porcelain tiles obtained from the experimental bodies incorporated with varying amounts of rhyolite (up to 12 wt. %) as a substitution of albite in the standard formulation after single fast-firing under industrial conditions. Reactions during firing were studied by thermal analysis (DTA/TGA/DTG). The vitrification behaviour of the standard and rhyolite containing bodies was evaluated using a double-beam optical non-contact dilatometer. In addition, XRD was used to analyse the phases formed after firing. SEM was also employed in order to observe the microstructural characteristics of the selected fired bodies with respect to increasing rhyolite content. In the second part, the most suitable rhyolite containing formulation was further developed by modifying its clay fraction for cost saving purposes. Physical, thermal and optical properties of the all the investigated bodies such as water absorption, linear firing shrinkage, bulk density, linear thermal expansion coefficient and chromatic coordinates were measured. According to the results, it was possible to incorporate rhyolite into a porcelain stoneware formulation as a fluxing agent and to obtain meaningful technological properties.
2011 International Symposium on Innovations in Intelligent Systems and Applications, 2011
2 0 1 1 I n t e r n a t i o n a l S y m p o s i u m o n I N n o v a t i o n s i n I n t e l l i g... more 2 0 1 1 I n t e r n a t i o n a l S y m p o s i u m o n I N n o v a t i o n s i n I n t e l l i g e n t S y s T e m s a n d A p p l i c a t i o n s 2 0 1 1 I n t e r n a t i o n a l S y m p o s i u m o n I N n o v a t i o n s i n I n t e l l i g e n t S y s T e m s a n d A p p l i c a t i o n s O r g a n i z e d b y I n c o o p e r a t i o n w i t h S p o n s o r s
... V. Bozkurt Corresponding Author Contact Information , a , E-mail The Corresponding Author , Y... more ... V. Bozkurt Corresponding Author Contact Information , a , E-mail The Corresponding Author , Y. Ucbas a , S. Koca a and H. Ipek a. ... and feldspar bearing rocks such as pegmatite, granite, syenite and trachyte have been intensified in last decade (Bayraktar et al., 1997, Gulsoy et al ...
Adsorption and orientation of ethyl xanthate on a copper electrode was studied using an in situ s... more Adsorption and orientation of ethyl xanthate on a copper electrode was studied using an in situ spectroelectrochemical set up. Cuprous xanthate was identified to be the major product over the potential range − 0.5 to − 0.1 V (SCE). A further increase in electrode potential to 0.1 V resulted in the formation of dixanthogen in addition to cuprous xanthate. The characteristic dixanthogen bands disappeared and the intensity of cuprous xanthate bands increased when the potential was brought back and held at −1.0 V. With polarized radiation, the spectral appearance of cuprous xanthate changed in contrast to that of dixanthogen, suggesting preferential orientation of cuprous xanthate molecules but random orientation for dixanthogen.
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2010
... Flotation , Colorado: AIME. View all references; Bolat et al., 1998b12. Bolat, E., Sağlam, S.... more ... Flotation , Colorado: AIME. View all references; Bolat et al., 1998b12. Bolat, E., Sağlam, S. and Pişkin, S. 1998b. ... Similiar results concerning MIBC were reported for Hazro coal (Ayhan et al., 20059. Ayhan, FD, Abakay, H. and Saydut, A. 2005. ...
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