33results about How to "Rich in mineral resources" patented technology

The present invention relates to a method of preparing swelling fluor mica by kaolin pigment, which comprises the steps of evenly mixing kaolin pigment of 25~75 wt % with fluorine compounds of 10~35 wt % and magnesium compounds of 15~40 wt%, calcining for 4~12 hours at 850~900 DEG C; wherein the fluorine compounds are Na2SiF6 or NaF, the magnesium compounds are MgO, Mg(OH)2, brucite, MgCO3(including magnesium carbonate basic)or magnesite. The method of the present invention has the advantages of low cost, low temperature, no environment pollution and wide application prospect.

The invention discloses an attapulgite composite glass fiber core material and a preparation method thereof. The core material uses glass fiber as a matrix, and the mass fraction is 60% to 78%. Between the pores of the glass fibers, 15% to 25% of bird's nest nanorod crystal attapulgite, 5% to 10% of layer chain attapulgite aerogel and 2% to 5% of binder are doped. The composite core material of the present invention can effectively utilize the bird's nest microstructure of nano-rod crystal attapulgite and the layer-chain nanofiber structure of attapulgite airgel to optimize the micron-based microstructure of the glass fiber core material. By adjusting the pore classification and pore size of the glass fiber core material, the structural stability and thermal insulation performance are improved, while the air pressure sensitivity is reduced, and the service life of the vacuum insulation panel is prolonged. In addition, the nano-rod attapulgite has excellent properties such as corrosion resistance, high temperature resistance and environmental protection, so that the composite core material can be used at higher temperatures.

The invention discloses a preparation method of a large-area material for converter fettling, which adopts regenerated magnesia carbon bricks, regenerated silicon carbide and high-iron magnesia as main raw materials, and prepares the material by crushing and sieving regenerated magnesia carbon bricks, regenerated silicon carbide and high-iron magnesia, adding high temperature asphalt, urotropine and caprolactam, and fully stirring. When used in converter equipment, the large-area material for converter fettling prepared by the formula has the advantages of high adhesive rate, good anti-stripping performance, high sintering speed, erosion resistance, scouring resistance, and low high temperature expansion, and has an adhesive rate of more than 95%. The raw material of magnesia is rich in ore resources; the auxiliary raw materials are available everywhere; the formula is simple; the raw material stock-holding cost is decreased; the high adhesive rate of the product not only realizes the reduction of production cost, but also reduces adverse influence of residues on molten steel. Meanwhile, the work intensity is decreased; the construction progress is accelerated; the fettling time is shortened; the furnace service life is prolonged; and the consumption of refractory materials is reduced.

The invention relates to a holmium radical bulk non-crystal body alloy that the expression is HoaMbAlcCodTe, and 30 greater than or equal to a greater than or equal to 56, 0 greater than or equal to b greater than or equal to 26, 22 greater than or equal to c greater than or equal to 25, 20 greater than or equal to d greater than or equal to 23, 0 greater than or equal to e greater than or equal to 25, and a+b+c+d+e=100, M is Zr or / and Y, element T is Fe, Ni, Nb, Pd, Mo, Hf, Ta, or rare earth Ce, Tb, Dy, Gd, Er, and Sm. The alloy is made up from mixing the elements with purity over 99.9wt% according to the ratio, and taking multi times melting to gain mother alloy ingot bar, and re-melting the mother alloy, using casting adsorbing device in arc furnace to adsorb the melt into water cooledcopper mould. The invention has low critical cooling speed, strong anti oxygen ability, and strong anti crystallizing ability. It is easy to make and low cost, and has high thermal stability.

The invention relates to a copper-zirconium-based amorphous alloy, which is mainly composed of copper and zirconium, and whose composition is expressed by the following formula: (Cu1-xZrx)aAlbMc, wherein, 0.40≤x≤ 0.60, 80≤a≤100, 0≤b≤14, 0≤c≤20, and a+b+c=100; metal element M is Y, La, Ce, Pr, Nd, Gd, Tb, Dy, Ho , Er, Ti, Ag, Ga, Hf, Ta, Nb, Ni, Co, or Fe. The preparation of the alloy is to mix the above-mentioned components Cu, Zr, Al and M according to the required atomic ratio in an electric arc furnace with an argon atmosphere adsorbed by titanium, and then melt and cool to obtain a master alloy ingot; then use conventional The metal mold casting method is to remelt the master alloy ingot in the air and cast it in a water-cooled metal mold to obtain the alloy. The alloy has high glass-forming ability, strong ability to inhibit crystallization, and can be made into larger sizes at very low cooling rates.