2 results about "Lithium metaborate" patented technology

A mold flux for the continuous casting of large-strand ultra-high carbon wear-resistant ball steel and a preparation method therefor. ‌The mold flux is prepared from the following raw materials in parts by weight: 15-28 parts of wollastonite powder, 20-40 parts of an electrically fused pre-melted slag, 3-6 parts of lithium metaborate, 2-8 parts of borosilicate glass, 2-4 parts of sodium fluoride, 5-13 parts of sodium carbonate, 2-7 parts of barium fluoride, 7-11 parts of fluorite powder, 2-5 parts of electrode graphite, 2-5 parts of high-carbon amorphous graphite, 2-4 parts of N660 carbon black and 2-4 parts of dextrin. The mold flux has a relatively low viscosity, a relatively low melting point and a relatively high basicity, improves the lubrication effect on a casting blank, enhances the ability to absorb floating inclusions in the molten steel, reduces the incidence of cracks on the casting blank surface and the occurrence of breakouts, improves the surface and subsurface quality of the casting blank, and increases the production efficiency of continuous casting. The mold flux is particularly suitable for the continuous casting production of large-strand ultra-high carbon wear-resistant ball steel.

This invention discloses a method for regenerating lithium borohydride using aluminum-based materials. The method involves simultaneously adding rare-earth-aluminum intermetallic compounds and lithium oxide, followed by solid-phase ball milling of aluminum and lithium metaborate dihydrate in a ball mill jar under non-oxidizing atmosphere or vacuum conditions to regenerate lithium borohydride. The addition of rare-earth-aluminum intermetallic compounds and lithium oxide additives improves ball milling efficiency, removes the aluminum oxide passivation layer, improves positive and negative hydrogen conversion, promotes lithium borohydride formation, and increases the yield of lithium borohydride. The rare-earth-aluminum intermetallic compound additives include inexpensive Al2Ce, Al3Ce, and Al... 11 One or more of Ce3, Al2La, and Al3La. This invention has the advantages of simple process, low cost, and easy industrialization.