A method for producing a tetrahydroborate is disclosed. The method includes a plasma treatment step of exposing a borate to a hydrogen plasma. The method also includes that the plasma treatment is performed using hydrogen plasma generated by microwave or RF excitation, and the plasma treatment is performed while heating the borate at a temperature between 40° C. and 300° C.

Disclosed is a boron recovering device including: an aeration-type water-channel reactor including a water channel; at least one aeration unit disposed in the water channel and aerating a boron-containing solution by passing it through the water channel to deposit boron in the form of borax; and a precipitation bath precipitating the deposited borax in the boron-containing solution having passed through the aeration-type water-channel reactor and separating a filtrate by overflowing, a boron recovering device, a method of recovering boron, and a boron recovering system.

A powder boronizing composition comprising: a. 0.5 to 4.5 wt % of a boron source selected from B.sub.4C, amorphous boron, calcium hexaboride, borax or mixtures thereof; b. 45.5 to 88.5 wt % of a diluent selected from SiC, alumina or mixtures thereof; c. 1.0 to 20.0 wt % of an activator selected from KBF.sub.4, ammonia chloride, cryolite or mixtures thereof; and d. 10.0 to 30.0 wt % of a sintering reduction agent selected from carbon black, graphite or mixtures thereof.

The present disclosure relates to a method for producing a tetrahydroborate, the method including a plasma treatment step of exposing a borate to a hydrogen plasma.

A suspension of a boron containing compound in the form of crystals, powder or granulate in a solvent which contain a carbomer as dispersant. This suspension is very stable, even at high concentrations, and exhibits favourable non-Newtonian viscosity behavior, which makes it suitable in a number of applications, such as for the control of fission reactions with the generation of electric power from nuclear energy.

A powder boronizing composition comprising: a. 0.5 to 4.5 wt % of a boron source selected from B.sub.4C, amorphous boron, calcium hexaboride, borax or mixtures thereof; b. 45.5 to 88.5 wt % of a diluent selected from SiC, alumina or mixtures thereof; c. 1.0 to 20.0 wt % of an activator selected from KBF.sub.4, ammonia chloride, cryolite or mixtures thereof; and d. 10.0 to 30.0 wt % of a sintering reduction agent selected from carbon black, graphite or mixtures thereof.