A novel approach for recovering yttrium from high ferric and strong acidic sulphate leach solutions of deep-sea mud by stepwise extraction stripping has been developed. The results show that the first step N235+TBP system can extract H2SO4 well adjust raffinates to a desirable pH, while only iron was selectively co-extracted with negligible loss ions. organic solution be easily regenerated usin...

Abstract Magnetic Fe 3 O 4 nanoparticles (NPs) were successfully synthesized via co-precipitation method using ferric chloride and ferrous sulphate as the starting materials. The shape size of NPs controlled by different types additive including ammonium hydroxide sodium hydroxide. results revealed that adding hydroxide, particles attained a spherical with uniform size. On other hand, turned fr...

AIM The purpose of this paper is to consider evidence for the early involvement of the pulp in primary molars following a proximal caries attack and to consider the evolution of ferric sulphate as the possible alternative to formocresol for pulp therapy in primary molars. Concerns have been expressed over the wisdom of using products containing formaldehyde in children and alternatives should b...

The present study aimed to synthesize the magnesium doped ferric sulphate nanoparticles (Mg-Fe2SO3 NPs) and investigate their seed germination efficacy. Mg-Fe2SO3 NPs were prepared by a simple cost-effective method subjected characterization. X-ray Diffraction (XRD) spectrum revealed crystalline nature of with an average crystallite size 36.41 nm. field emission scanning electron microscope (FE...

Large reserves of coal in Tabas region of Iran are characterized by low ash and high caking index, suitable for use in metallurgy as coking coal. However, these coals cannot be gainfully utilized because of their high sulfur content. In this work, studies on desulfurization of Tabas coals were carried out in a batch reactor using various reagents. The most effective reagents,<...

abstract                                                                               the new drug delivery systems have been developed, which can remain in the stomach for prolonged period of time. the effervescent floating tablet is one of these systems. iron deficiency anaemia is a common disease in the world. ferrous sulphate is the most common ferrous preparation used to treat and prevent...