Uzbekistan patented a phosphate-modified process of STBF manufacture

At the end of 2015, the Uzbek scientist Vadim Shevchenko obtained a patent for a manufacturing method of basalt super-thin fiber based on mineral raw materials of the Republic of Uzbekistan.

The main activity of Global Basalt Engineering LLC is creation of effective productions on release of continuous basalt fiber (СBF) with technologies of the last generation and composites on the basis of СBF (Basalt Fiber-Reinforced Polymer Composites as BFRP).

A distinguishing feature of the patented method is that the scientist proposed to use a composition instead of pure basalt rock, produced by mixing crushed basalt rocks with by-products of phosphate fertilizers production.

After melting at 1360-1380° C, “the mixture is incubated for 15-20 minutes until gas evolution has been stopped. After cooling, the set body is crushed to a particle size of 10 mm. The resulting mass is remelted at 1280- 1320° C with the addition of calcium orthophosphate; the mixing ratio of calcium orthophosphate to the above-mentioned mass is 1: 99.

Then, this material is incubated for 5-10 minutes until the homogeneous melt has been formed. This melt is extruded through the bushing with holes of 0.8-1 mm in diameter to form the fiber.

The fibers are blown by the flow of hot gas with a temperature of 1400- 1480 ° C to produce super-thin fiber.”

Patent number IAP 05129, International Patent Classification codes 8 C 03 B 37/00, C 03 C 13/00.

Countries: Uzbekistan

Industries: Oil & Gas

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