Product Details

Applications

● Fine Chemicals and Highly Corrosive Distillation

● High-Purity Chemicals for the Semiconductor Industry

● Environmental Protection: Exhaust Gas Treatment and Waste Acid Recovery

● New Energy Industry Chain

● General Chemical Unit Operations

Product Contents

Technical Comparison & Application Introduction of Silicon Carbide Mesh Packing, Open-Cell Silicon Carbide Foam and Metal Mesh Packing

Name: SILICON CARBIDE MESH PACKING
Brand: Huayan Intelligent Technology

Product Overview (Corrugated Silicon Carbide Mesh Packing)

Corrugated silicon carbide mesh packing is a new type of tower internals fabricated by precision stamping porous silicon carbide (SiC) mesh into regular corrugated structures.

Breaking through the performance bottlenecks of traditional metal packings and ordinary ceramic packings, it features outstanding corrosion resistance, high temperature resistance, low pressure drop and high mass transfer efficiency. It can fully replace high-end metal packings such as Hastelloy, titanium alloy and stainless steel, and is widely applied in precise chemical separation processes featuring strong corrosion, high purity requirements and high temperature.

Application Fields of Corrugated Silicon Carbide Mesh Packing

① Fine Chemical Industry & Strongly Corrosive Rectification

Suitable for vacuum rectification and precise separation processes involving various strongly acidic, halogen-containing and highly corrosive media. Main applicable industries include chlor-alkali chemistry, fluorochemicals, coal chemical industry, pharmaceutical intermediates and natural flavors.

It enables high-precision separation of trichlorosilane, silicon tetrachloride, halogenated organics, crude phenols and acidic solvents, solving industry pain points such as corrosive failure of metal packings and material contaminatio

② High-Purity Chemicals for Semiconductor & Electronics

Silicon carbide releases no metal ions or impurities, making it the core tower internal component for high-purity chemical production.

It is mainly used for purification of electronic-grade hydrochloric acid, nitric acid, hydrofluoric acid and other wet electronic chemicals, rectification of high-purity organic solvents, and scrubbing & purification of electronic specialty gases, perfectly meeting the ultra-high purity production standards of the semiconductor industry.

③ Environmental Waste Gas Treatment & Waste Acid Recovery

Applicable to scrubbing and absorption processes for highly corrosive tail gas, including purification of hydrogen chloride, hydrogen fluoride, sulfur oxides and nitric acid tail gas.

It can also be used for solvent recovery of corrosive VOC organic waste gas, concentration rectification of waste acid, and regeneration of industrial pickling waste liquid, with long corrosion resistance and low operation & maintenance costs.

④ New Energy Industry Chain

Covers three major sectors: photovoltaics, lithium batteries and hydrogen energy:

● Purification and rectification of chlorosilane byproducts in photovoltaic polysilicon production;

● Precise separation of carbonate solvents for lithium battery electrolytes;

● Acid gas (CO₂, H₂S) removal & absorption towers for hydrogen energy equipment, adapting to high-end precise production conditions of new energy.

⑤ General Chemical Unit Operations

Compatible with mainstream industrial tower processes, including precise vacuum rectification, atmospheric rectification, gas absorption, desorption, stripping, extractive rectification, azeotropic rectification, liquid-liquid extraction and other gas-liquid mass transfer working conditions.

Operating Condition Limitations of Corrugated Silicon Carbide Mesh Packing

① Forbidden conditions: High-temperature concentrated strong alkali and molten strong alkali systems, which corrode the silicon carbide substrate;

② Cautious application conditions: Materials with high solid content, high viscosity or high coking tendency, which easily block mesh pores;

③ Suitable conditions: Most strong acids, organic acids, weak alkalis and organic solvents, with stable long-term high temperature and corrosion resistance.

Core Parameter Comparison of Three Mainstream Porous Packing Materials

Comparison Item	Corrugated Silicon Carbide Mesh Packing	Open-Cell Silicon Carbide Foam	Corrugated Metal Mesh Packing (316L / Hastelloy)
Main Material	Porous silicon carbide (SiC) mesh	Monolithic silicon carbide with interconnected pores	Stainless steel, Hastelloy C276, titanium alloy
Core Structure	Regular stacked corrugated tower packing with continuous ordered flow channels	3D interconnected foam pore skeleton	Corrugated structure pressed from perforated thin metal sheets / metal mesh
Core Positioning	Gas-liquid mass transfer, rectification and absorption separation for large-scale towers	Catalyst carrier, high-temperature filtration, small reactor internals	General precise rectification & separation under mildly corrosive environments
Corrosion Resistance	Excellent; resistant to strong acids, halides and organic solvents; incompatible with high-temperature concentrated alkali	Excellent; resistant to all types of acids, alkalis and high-temperature corrosive media	Ordinary stainless steel susceptible to chlorine & hydrofluoric acid; Hastelloy fails in high-temperature fluorine-containing media
Maximum Temperature Resistance	≤850 °C (air / inert atmosphere)	≤1200 °C	Stainless steel: 450 °C; Hastelloy: ≤600 °C
Fluid Pressure Drop	Low pressure drop, suitable for high-flow continuous tower equipment	Relatively high pressure drop, not fit for high-throughput rectification	Low pressure drop with excellent fluid permeability
Anti-Clogging Capacity	Moderate; fine dust easily clogs pores	Poor; microporous structure prone to blockage	Good, supports online cleaning & maintenance
Material Contamination Risk	Extremely low, no metal ion leaching	Extremely low, no impurity precipitation	Metal ion leaching occurs, restricted for high-purity processes
Cost Range	Mid-to-high price, higher cost performance than special metals	High price, high customization cost	316L at low price; Hastelloy / titanium alloy at high price
Main Drawbacks	Brittle material; violent impact prohibited; intolerant to high-temperature concentrated alkali	Difficult forming process, unable to fabricate large regular tower packings	Prone to corrosive failure under fluorine-containing, strongly acidic working conditions

Distinction of Precise Applicable Scenarios for Each Material

① Corrugated Silicon Carbide Mesh Packing

Applicable to strongly corrosive working conditions containing hydrofluoric acid, hydrochloric acid, chlorosilane and strong halides; large tower equipment for semiconductor high-purity chemical purification, photovoltaic polysilicon rectification, fluorochemicals, waste acid recovery and strongly corrosive waste gas scrubbing towers.

Not applicable to slurries with high solid content and high-temperature concentrated strong alkali conditions.

② Open-Cell Silicon Carbide Foam

Applicable to high-temperature catalytic reaction carriers, high-temperature flue gas filtration, static gas-liquid mixing, microchannel small reactors and special high-temperature working conditions.

③ Corrugated Metal Mesh Packing

Applicable to conventional precise rectification under mild media without fluorine or strong chloride ions, such as separation of flavors and common fine chemical solvents, and general chemical projects with controllable budgets.

Not applicable to production lines involving hydrofluoric acid, concentrated hydrochloric acid or semiconductor high-purity chemicals.

Quick Material Selection Guide

① Strong corrosion (fluorine/chlorine-containing) + large rectification/absorption towers, high-purity material production → Corrugated silicon carbide mesh packing

② High-temperature catalysis, small-scale reaction, high-temperature filtration → Open-cell silicon carbide foam

③ Mild media without strong corrosion, conventional precise rectification → Stainless steel / Hastelloy metal mesh packing

If you would like to order custom metal foam or porous metal, please call Huayan Intelligent Technology at +8613661985902，Email: 13661985902@163.com