Quartz in ceramics, glass industries- Henan Ankai New Materials Co., Ltd-Henan Ankai New Materials Co., Ltd.

Product Introduction

Quartz is a natural mineral primarily composed of silicon dioxide (SiO₂). It is characterized by stable chemical properties, high hardness, heat resistance, and corrosion resistance, making it one of the most important siliceous raw materials in the industrial sector. The high-purity quartz (silica) produced by LSAK Feldspar is mainly used for TFT substrates and various display screens. As a core base material for TFT-LCD substrates, OLED display glass, and electronic-grade fiberglass, LSAK redefines quality standards for display glass raw materials with its extremely low iron content (Low Iron), ultra-low alkali metal content, and precise particle size distribution.

Quartz (Silica) Product Specifications

2-1 Chemical Composition (Typical Indicators)

SiO₂: ≥ 99% (High purity can reach 99.5%+)
Fe₂O₃: ≤ 0.05% (High-end glass grade can be ≤ 0.01%)
Al₂O₃: ≤ 0.3%
K₂O + Na₂O: ≤ 0.2%
Moisture: ≤ 0.5%

Specific indicators can be customized and adjusted according to customer applications

2-2 Particle Size Specifications

8–16 mesh
16–30 mesh
30–60 mesh
60–120 mesh
120–200 mesh
325 mesh (for other industries, potentially electronic-grade fiberglass or display screens)
600 mesh and finer

Particle size distribution can be precisely controlled based on application scenarios.

2-3 Physical Properties

Mohs Hardness: 7
Melting Point: Approx. 1710℃
Density: 2.65 g/cm³
Low Thermal Expansion Coefficient
Excellent Electrical Insulation Performance
Note: High-purity quartz typically requires SiO₂ content ≥ 99.99% and is used in the semiconductor and photovoltaic industries.

Quartz Package

1000-1300kg per bags.

Advantages of Quartz (Silica)

• High Purity: High-purity quartz can achieve SiO₂ content of over 99.99% with low iron impurities, meeting the demands of high-end glass and electronic-grade manufacturing.
Excellent Chemical Stability: Resistant to acid and alkali corrosion; insoluble in water, hydrochloric acid, sulfuric acid, nitric acid, and other common acids and bases (except hydrofluoric acid). It remains chemically stable under high temperature and pressure for long-term use.
Good Thermal Stability: Heat resistant with a low thermal expansion rate, suitable for high-temperature sintering and melting systems.
High Mechanical Strength: With a melting point as high as approx. 1713℃ and an extremely low thermal expansion coefficient, it offers excellent thermal shock resistance. It does not deform or crack under extreme temperature changes.
Controllable Particle Size: Particle size ranges can be customized to meet different application requirements, ensuring stable performance.
Excellent Electrical Insulation: High resistivity and low dielectric constant make it an ideal electrical insulation material.
Abundant Resources and Cost Control: Huge reserves in the earth's crust, mature mining and processing technologies, and high cost-performance ratio.

Parameter of Sodium Feldspar

	Chemical Analysis									Other Properties
Product Code	SiO2	Al2O3	Fe2O3	TiO2	CaO	MgO	Na2O	K2O	L.O.I.	Particle Size Distribution			Oil Absorption	bulk density
	%	%	%	%	%	%	%	%	%	D10	D50	D97	g/100g	g/cm³
LSAK Feldspar （0-10mm）	65.04	21.28	0.52	0.14	0.22	0.13	10.48	1.08	0.8	0-10mm, 95% pass			/	/
LSAK Feldspar （0-10mm）	65.04	21.28	0.52	0.14	0.22	0.13	10.48	1.08	0.8	0-10mm, 95% pass			/	/
LSAK Feldspar 1	66.75	19.81	0.13	0.03	0.54	0.018	11.2	0.41	0.59	25μm	58μm	145μm	/	/
LSAK Feldspar 2	66.63	19.84	0.13	0.03	0.67	0.07	11.11	0.4	0.7	2.62μm	23μm	70.96μm	/	/

Applications of Sodium Feldspar

Ceramics Industry:

• Ceramic Glazes:

sodium feldspar is mainly used as a flux in ceramic glazes. It can effectively reduce the melting temperature of glazes and promote the smooth flow of glaze layers during firing. In addition, the sodium oxide (Na₂O) contained in sodium feldspar can enhance the gloss and adhesion of the glaze surface, while improving the expansion coefficient of the glaze and reducing the problem of glaze cracking.

• Ceramic Bodies:

Sodium feldspar is incorporated into ceramic bodies to improve their strength and durability. By acting as a flux, it enables ceramic materials to vitrify at lower temperatures, resulting in stronger and less porous ceramics. This is especially important for items like sanitaryware and stoneware.

• Sanitary Ware:

As an efficient flux, sodium feldspar can reduce the melting point of glaze, optimize the firing temperature, and promote the uniform flow of the glaze layer to form a smooth and shiny surface. At the same time, the sodium content helps to regulate the expansion coefficient, improve the heat resistance and crack resistance of the product, and ensure the durability and aesthetics of sanitary ware.

• Sintered Stone:

In the production of sintered stone, sodium feldspar can reduce the firing temperature, promote the densification of the green body, and improve the sintering efficiency. Its alumina component enhances the hardness and scratch resistance of the plate, which helps to form larger-sized, uniform-structured high-performance ceramic plates, which are widely used in high-traffic areas and kitchen countertops.

Glass Industry:

As a fundamental and critical inorganic non-metallic material, quartz has become an indispensable strategic resource for modern high-tech industries due to its comprehensive advantages, including high purity, heat resistance, corrosion resistance, excellent optical properties, and strong electrical insulation.

LSAK Feldspar (Henan Ankai New Materials) specializes in Albite, Nepheline, High-Purity Quartz, and Potassium Feldspar. We possess independent, self-owned mining bases, achieving full industry chain control from raw ore mining to fine processing. This core advantage not only guarantees excellent chemical stability and uniform particle size distribution but also builds an unbreakable, stable supply chain system, ensuring continuous and on-time delivery. Choosing LSAK means choosing high-quality raw material assurance and a worry-free supply experience, helping your products achieve comprehensive upgrades in whiteness, transparency, and mechanical performance.

Click Here To Get Sodium Feldspar Chemical Composition Report

Quartz

Application: