Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering) - Volume 7, Issue 2, 2014

In recent years, nanosilicas have received particular attention in the use as filler for reinforcing silicone rubber. They can be homogeneously distributed within the polymer matrix and improve the physical and mechanical properties of silicone rubber, e.g. the tensile strength, tear strength, modulus and abrasion resistance. The enhanced performance in mechanical and thermal aspects is primarily attributed to the Read More

Scale deposition is a difficulty encountered with water containing ions of sparingly soluble salts. A widely used technique for controlling scale deposition is by dosage of an antiscalant. Large quantities of polymeric scale inhibitors are used for scale control in cooling water systems, water desalination processes and oil field operations. This paper summarizes kinds of scale inhibitors, such as natural polymer inhibitors, carbo Read More

Zirconia nanocrystals are the best materials to combine with various resins into a transparent high-index composite. Such composite is crucial for the manipulation or enhancement of light in devices such as Organic-Light-Emitting-Diode (OLED) or Liquid- Crystal-Displays (LCD) that surrounds us today. To make a transparent composite, the nanocrystals have to be small (<10nm), un-agglomerated and fully dispersed in resins. Read More

The development of photosensitive glass (PG) has a remarkable history since its first commercial discovery in the 1940s. The manufacturing of PG is one of the most widely reported methods for special glass manufacturing. PGs are capable of forming permanent photographic images when subjected to light, providing security, high quality and productivity. The first U. S. patent about photosensitive glass was filed on Decemb Read More

To investigate potential sources of the natural antioxidants from fruits, Terminalia catappa, Carissa carandas, and Opuntia ficus indica, have been selected for this study. Their total phenolic content (TPC) and antioxidant activity (AOA) were determined by using DPPH (2,2-diphenyl-1- picrylhydrazyl), ferric reducing power (FRP) and chelating effect methods. Data obtained show that among these species, the highest pol Read More

Sewage sludge is the material which is generated upon conventional wastewater treatment processes and it is must be treated to reduce the hazards and environmental impact. Wet oxidation (WO) is applied to treat industrial and municipal sewage sludge (3000- 6000mg/L total organic carbon). Experiments were carried out to investigate the effects of temperature, H2O2 excess (HE), the initial TOC, residence time and Read More

This study was conducted to identify and compare natural antioxidant based plant sources. Polyphenols are the main constituents of the natural antioxidants obtained from fruits, leaves, and seeds etc. In this work, four types of seeds from Trachyspermum ammi (Ajwain), Brassica alba (Mustard), Trigonella foenum graecum (Fenugreek) and Papaver somniferum (Poppy) were selected and their extracts were tested for a Read More