Colours, dyes related to Chemical Technology and engineering Technology Offers

Cracow University of Technology posted this:

Laboratory of Photochemistry and Optical Spectroscopy Design and synthesis of new photoinitiators dedicated for cationic, free-radical and hybrid photopolymerization. The research are performed to improve the speed of the curing processes of polymer coatings by developing innovative polymerization photoinitiators having a very better parameters than those already used in industry. The search for more effective initiators are fully justified from the practical point of view in industry photocurable polymer coatings.

University of Vigo posted this:

New non-destructive method for “in situ” monitoring of anticorrosive protection of organic coatings The main novelty of the device and procedure is the new portable sensor adaptable to virtually any surface. The device, fixable by vacuum to the surface under study, makes possible the measurement of the electrochemical interfacial impedance, that is the main parameter of interest for adherence quality and anti-corrosion performance.

University of Vigo posted this:

New sustainable adsorbent for bleaching efficient industrial effluents Many industries, such as those belonging to the textile, wine, and paper industry, consume huge volumes of water and, as a result, generate a large amount of contaminated water containing persistent colour pollutant compounds. These compounds represent an environmental and health threat due to their well-known associated problems, such as carcinogenicity, toxicity and mutagenicity. Furthermore, they entail a great environmental impact when discharged in aquatic environments, perceptible at very low concentrations, creating an undesirable visual impact, which, in many cases, does not meet the degree of conformity under the current directives on the wastewater treatment for industrial effluents (Directive 91/271 / EEC). The solution proposed by the research group Chemical Engineering at the University of Vigo, is the use as adsorbent of peat, or a similar lignocellulosic material, immobilized in calcium alginate beads. This process is efficient, cheap and environmentally friendly, unlike other processes and technologies. In fact, the utilization of peat instead of activated carbon as industrial adsorbent has the advantage that peat requires no activation, unlike activated carbon, reducing operating costs. In addition, the low cost of the adsorbent would be translated into significant economic benefits. Moreover, depending on the contaminant removed from the waste effluent, the exhausted adsorbent may be used as soil fertilizer at its end of life.

Institute of Chemical Research of Catalonia posted this:

ERTFlow: flow reaction technologies and process intensification ERTFLOW is a technology development unit from the Institute of Chemical Research of Catalonia (ICIQ), generated by the know-how produced by the research group of Prof. Miquel Pericàs, to develop and implement technical solutions in process intensification. Our goal is to develop propietary technologies related to catalysis and flow chemistry and offering products and services to the fine chemical, pharmaceutical and biotechnological industries for the production of new products with high added value and guide them in the paradigm change from batch to flow.

UNIVERSIDAD DE ALICANTE posted this:

New family of dyes The main innovative aspects of this technology regarding current methods of synthesis are: • The indolizine dyes are obtained in one step from commercially available materials, unlike current procedures, which involve multiple steps. This is an advantage in the production process, as it reduces costs, increases the final yield and less waste is generated. • The procedure is based on a very simple treatment which produces indolizine dyes in yields higher than 70%. • The present invention does not require the use of inert atmosphere, dry solvents or physical activation (heat or radiation) to obtain the final product. • Unlike other methodologies for preparing indolizine dyes (requiring temperatures around 100°C), this process is carried out at room temperature and atmospheric pressure, which simplifies the method and decreases production costs. • This is an environmentally friendly technology because it does not use solvents such as dioxane, pyridine, chloroform or benzene, which are used in other methods and are characterized by their high toxicity and demonstrated carcinogenicity. • The selectivity of the reaction is very high. The indolizine dye is obtained with absolute control, obtaining a single isomer of the ten possible.