Purpose of the development: Designed for active influence on clouds and fog to dissipate them, more rainfall in arid areas to prevent hail, as well as climate control over significant areas.

Recommended application field: Reagents designed to be used in airports, grape-growing farms in agriculture to artificially increase precipitation. In using the results of the project are interested Emergencies of Ukraine, Russia, UkrHydromet (Kiev), Center (Moscow, Dolgoprudnyi) Mountain Geophysical Institute (Nalchik)

Technical characteristic: New highly efficient ice-forming agent in the form of nanopowder for administration in the scope of which will be sufficient to simply spray. Silver iodide content is approximately 10% wt. The outputs of ice crystals at -10 ° C - (5-6) 10 [13] g-1, at -5 ° C - (5-6) 10 [12] g-1. Compared to pure AgI significantly reduced consumption of salt, which considerably reduces the product and eliminates the need to use a special mist generator due to the ease spraying. Compared with pyrotechnical used - on the order of a higher yield of ice particles.

Advantages over analogues: Yield AgI crystallization centers is approximately 10 [13] g-1. Superfine nanosized silica with a specific surface of 300 m2 / g is composed of spherical primary particles of about 10 nm. In 1 g nanosilica contains about 1,018 such particles. If on the surface of a monolayer coating or nanoclusters of the active substance, it is theoretically possible to expect out of ice particles 10 [18] g-1, which is much superior to the currently available ice-forming reagents. In practice, this value will naturally be lower because the nanoparticles may aggregate. A technology for the controlled deposition of inorganic salts and organic compounds on the surface of nanosilica.

The development stage readiness: Pre-production model is made

Description of the development:
()
The problem of active influence on clouds and fog to dissipate them, more rainfall in arid areas to prevent hail, as well as climate control over significant areas is relevant. Among the ice-forming reagents used most effectively is silver iodide. However, the high cost and scarcity of AgI significantly limits the scope of its application. The search for new substances capable of fully or partially replace the silver iodide as an ice-forming agent intensively continued around the world. Known for a number of compounds in a fairly high threshold temperatures lodoobrazovaniya and specific yield of the ice crystals (the number of ice crystals per 1 gram of the drug), but for various reasons they are in the practice of active impacts are not used. For example, a lead iodide, may not be used for environmental reasons, copper sulphide not used because of the difficulty of obtaining finely divided aerosol effective organic reagents such as metaldehyde, phloroglucinol are also widely used due to the difficulty of dispersion. The task of the work is to create a new lodoobrazuyuschih reagents with high activity, for which it would be possible to get a fairly simple way to highly dispersed aerosols, which greatly reduced the price to the cost of skilled and productive work on artificial influence and would create favorable conditions for their further development. Unlike traditional methods of obtaining such aerosols, based on the combustion of active substances, the authors of this paper suggest as a vehicle to use a ready-made aerosol - highly dispersed nano-sized silica. According to the developed original technology is applied to the surface of nanosilica monolayer or form clusters of inorganic salts and organic compounds with ice-forming activity. The resulting modified nanosilica can act as centers of ice formation with high efficiency.

corresponds technical description
Guarantees stable results getting

Possibility of transfer abroad:
Licence's sale
Combinated reduction to industrial level
Creation of joint enterprise
Joint production, sale, exploitation

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua