Lithium China stone is widely should be in glass industry in many fields, mainly has the following advantages

Lithium China stone is widely in many fields of glass industry, basically has the following advantages:

a, can replace alumina and aluminium hydroxide or reduce the dosage of soda ash

due to the lithium China stone iron is extremely low, almost no other harmful components, SiO2, Al2O3, Li2O, K2O and Na2O beneficial ingredient content is reasonable, so it can completely replace the alumina and aluminium hydroxide or long stone powder, reduce the dosage of soda ash, decrease the cost of batch.

2 or lower melting temperature, can improve the melting rate and prolong the service life of the kiln and the energy saving melting

due to the lithium China stone is not only introduced the glass K2O, Na2O, also introduces a small amount of Li2O and F ion, and belongs to the inert gas type Li ions, at high temperature in the center of the structure formation of asymmetric, and polarization oxygen ions, to lessen and the destruction of silica key ( O / Si) , so the lithium China stone when introducing a small amount of Li2O under high temperature can have the effect of high temperature melt and accelerate the glass melting. In addition it is well known that the role of alkali metal in glass melting enhancers, and at the same time there are two kinds of alkali metal oxide in the glass & brought by the other; Mixed alkali effect & throughout; A single sodium oxide has better fusion effect. And lithium China stone fluoride is a kind of can accelerate the introduction of glass reaction, lower viscosity and surface tension, promote glass clarify and homogenization, increasing the glass heating glass accelerator. So the lithium China stone as raw materials for the glass in glass formula 0 is introduced. 1 - 0. About 2% Li2O and 0. 1 - 0. About 2% of the fluorine, both combined effect can make the glass melting temperature lowered 25 & ndash; 500 c, make glass discharge rate increased by more than 10%.

3, can improve the brightness and whiteness of the product and improve product physical and chemical properties of

because lithium China stone 0 is introduced in the glass. 1 - 0. 2% Li2O, a large number of experiments and technical literature at home and abroad to prove: in the glass with a small amount of Li2O replace Na2O, can improve the water resistance of the glass, it is because of Li ion radius is small, the electric field strength is big, therefore has the effect of strengthen the glass network, at the same time can lower the expansion coefficient of glass crystallization, tend to be smaller. In addition & other; Mixed alkali effect & throughout; Also make the glass of water resistance is a single alkali metal oxide is better. So quote the right amount of lithium in glass porcelain stone, to improve its product color, gloss, impact resistance, water resistance and other performance is beneficial.

are introduced in this paper is through investigation, trial production and trial production of successful low lithium iron porcelain powder application experiences, the recommended process can be widely used in the manufacture of porcelain stone and success, high-grade daily-use glassware, high-end cosmetics bottles, art deco, physical and chemical equipment glass, etc. Lithium porcelain petrochemical composition roughly: Al2O318 %, SiO269 %, K2O3. 38%,Na2O2。 87%、Li2O0. 8 - 1. 6%、F20. 2 - 0. 4%,Fe2O30。 06 - 0. 15%. The use of lithium China stone grading procurement by iron content commonly: 1: Fe2O3 & lt; 0. 06%, level 2: Fe2O3 & lt; 0. 1% and level 3: Fe2O3 & lt; 0. 15%. In the glass production proved that contains 0. 10 - 0. 20% Li2O porcelain powder to replace feldspar powder, the glass more than 30% lower than the original total iron, make the transparency of glass and obviously improve the chemical stability, and can reduce the temperature of 20 - glass system 500 c, so the China stone is indeed worthy of popularization and application of mineral materials.