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ball mill manufacturers in bulawayo - Huis Tarkastad Home

ball mill manufacturers in bulawayo - Huis Tarkastad Home

The purposes of this study were to clarify the amorphization by ball milling of atorvastatin calcium sesquihydrate (AT) and to analyse the change in dissolution kinetics. The amorphous AT was prepared from crystal AT by ball milling and analysed in terms of the changes of its physicochemical properties by powder X-ray diffraction analysis (XRD), thermal analysis and infrared spectroscopy (IR). Moreover, to evaluate the usefulness of the amorphous form for pharmaceutical development, intrinsic solubility of the ground product was evaluated using a dissolution kinetic method. The XRD results indicated that crystalline AT was transformed into amorphous solids by more than 30-min milling. The thermal analysis result suggested that chemical potential of the ground AT are changed significantly by milling. The IR spectra of the AT showed the band shift from the amide group at 3406 cm -1 with an intermolecular hydrogen bond to a free amide group at 3365 cm -1 by milling. The dissolution of amorphous AT follows a dissolution kinetic model involving phase transformation. The initial dissolution rate of the ground product increased with the increase in milling time to reflect the increase in the intrinsic solubility based on the amorphous state. 2016 Royal Pharmaceutical Society

TCH-GB-80 high-speed vibration ball mill is a high-performance small instrument for laboratory sample preparation (small or trace amount). Working principle: The instrument has three-dimensional motion of rotation and vibration during grinding, and the collision energy is higher than other types of ball

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4/8/2015 Working Principle Linear vibrating screen is designed with dual-vibration motor drive. When two vibrating motors rotate reversely in synchronous, the eccentric produce exciting force to offset each other on the parallel direction of motor axis,and stack together with the perpendicular direction of motor axis, so its trajectory is linear

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The primary wastes produced in the metal forming process include contact water, oil, grease, and mill scale. All are collected in holding tanks. The scale settles out and is removed. It can be reused in sintering plants or, if the metal content is sufficient, may be sold as a raw material elsewhere. The remaining liquid leaves the process as waste treatment plant sludge. As the waste results in a small portion of pollution produced by steelmaking, pollution prevention and process modification opportunities are not a priority

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