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PTFE Lined Reactor

Applicable media: acids, alkalis, organic solvents, various corrosive media
Working pressure: -0.098MPa~+2.5MPa
Working temperature: -100~+180℃
Manufacturing standards: GB150-2011
HG/T20678-2000
ASME
HG/T 4112-2009
HG/T 4088-2009
Lining sheet: PP, PTFE, PVDF, PFA
Sealing gasket: PTFE, rubber-coated PTFE

Introduction to PTFE Lined Reactors

PTFE Lined Reactors harness the power of advanced PTFE lining technology to offer unparalleled benefits to the chemical industry. These reactors are pivotal in mitigating the challenges associated with chemical reactivity and the degradation of equipment over time. The PTFE lining provides a robust barrier against corrosion, significantly extending the life and performance of reactors used in various chemical processes. By enhancing corrosion resistance, ensuring cleanliness, and tolerating a wide temperature range, PTFE lined reactors stand out as a solution for the industry’s demand for durable and reliable equipment. This innovative approach not only maintains the integrity of sensitive chemical reactions but also contributes to the overall efficiency and safety of industrial operations.

Detailed Description

The application of PTFE lining to steel reactor bodies involves a meticulous process to ensure optimal protection and longevity. Initially, the steel surface undergoes comprehensive preparation, including high-temperature degreasing and sandblasting, to achieve the required cleanliness and texture for effective adhesion. A special bonding agent is then applied to enhance the bond between the steel surface and the PTFE lining. The critical stage involves the use of a unique vacuum lining technique, where PTFE material is precisely applied to the reactor's interior. This method ensures a seamless, uniform layer that adheres tightly to the substrate, eliminating potential weaknesses such as seams or gaps. Through repeated applications and high-temperature baking, the PTFE forms a durable protective layer that significantly extends the reactor's service life while maintaining its chemical resistance and structural integrity.

Key Features

Corrosion Resistance: PTFE Lined Reactors offer superior resistance to a vast array of chemical substances, making them suitable for use with aggressive acids, bases, and solvents. This feature is crucial for maintaining the purity of chemical processes and protecting the reactor from damage due to corrosion.

Permeation Resistance: The PTFE lining acts as an exceptional barrier against small molecule gases such as oxygen and chlorine, preventing them from penetrating the reactor walls. This capability is essential for processes where contamination could compromise the reaction outcomes or product quality.

Smooth Surface: The inner surface of the reactor, coated with PTFE, exhibits a very low friction coefficient. This smoothness significantly reduces the likelihood of fouling and makes the reactor easier to clean and maintain, contributing to operational efficiency.

Longevity: Designed for durability, PTFE Lined Reactors are built to withstand the rigors of chemical processing with minimal wear. Their robust construction and protective lining ensure a service life of over a decade, offering significant long-term value and reliability.

Advantages Of Our PTFE Lined Reactors

PTFE Lined Reactors bring a host of advantages to the forefront of chemical processing, making them an indispensable asset in industries where purity and chemical resistance are paramount.

High Purity: The non-reactive nature of PTFE ensures extremely low contamination rates, crucial for industries like photovoltaics and semiconductors where even minor impurities can compromise product quality. This lining effectively maintains the integrity of sensitive reactions, ensuring high-purity outputs.

Versatile Application: Engineered for versatility, these reactors are adept at handling a wide spectrum of chemical reactions. From polymerization, where long chain molecules are formed, to neutralization reactions involving acids and bases, PTFE lined reactors provide a stable environment for a multitude of chemical processes.

Customizable Configurations: To accommodate the varied needs of industrial operations, these reactors come in both open and closed configurations, with a choice of heating methods. Options include jacket heating for uniform temperature distribution, internal coil heating for direct heat application, and external half-coil heating for efficient heat transfer. This flexibility allows for precise control over reaction conditions, optimizing process outcomes.

Specifications

Reactor Shell Materials

The choice of materials for the reactor shell is tailored to the demands of the application, including:

Carbon Steel: Offers strength and durability for general applications.

Stainless Steel 304/316L: Provides corrosion resistance for a broader range of chemicals.

Titanium Alloy: Exceptional strength and resistance to highly corrosive environments.

Duplex Stainless Steel 2205: Combines high strength with superior corrosion resistance, ideal for challenging chemical reactions.

Lining Materials

PTFE and PFA are selected for their unparalleled chemical resistance, providing a robust barrier against a vast array of chemical substances, ensuring the reactor's longevity and reliability.

Sealing Gaskets

Crafted from PTFE and rubber-coated PTFE, these gaskets ensure a tight seal, preventing leaks and maintaining the integrity of the reactor's internal environment.

Fasteners

Available in galvanized steel for general use, stainless steel for enhanced corrosion resistance, and PTFE-lined for the highest level of chemical resistance, ensuring the reactor's components remain securely fastened under all operating conditions.

Accessories

Motor Types

Including explosion-proof motors for hazardous environments and variable frequency motors for precise speed control, catering to the diverse requirements of chemical processing.

Reducers

Cycloidal and secondary wheel reducers are offered, providing reliable torque reduction and speed adjustment for the reactor's mixing system.

Mixer Seals

A selection of seals, including packing, mechanical, and magnetic types, ensures the mixing mechanism operates leak-free, maintaining the purity of the reactor's contents.

Mixer Types

Various mixer designs such as anchor, frame, pitched blade, and propeller are available, supporting a range of mixing actions from gentle blending to vigorous agitation.

Control Systems

Advanced control options include PLC systems for automated process control and inverters for precise speed adjustments, enhancing the efficiency and consistency of chemical reactions.

Applications of PTFE Lined Reactors

PTFE Lined Reactors are pivotal in numerous industrial processes, where their unique properties ensure the integrity and purity of complex chemical reactions.

Chemical Synthesis: In the production of fine chemicals and pharmaceuticals, these reactors provide a contaminant-free environment essential for reactions that are sensitive to impurities, ensuring high-quality outputs.

Pulp and Paper Industry: Used in the processing of chemicals for paper bleaching and treatment, PTFE lined reactors resist the corrosive effects of chemicals used, such as chlorine and caustic soda, maintaining the safety and efficiency of the operations.

Food Industry: Essential for the synthesis of food additives and processing agents, where purity is paramount. The inert nature of PTFE prevents contamination of food products, complying with stringent food safety standards.

Semiconductor Manufacturing: In the production of electronic components, reactors are used for etching and cleaning processes, where the high purity and chemical resistance of PTFE lining prevent contamination that could impair the functionality of the semiconductors.

Frequently Asked Questions (FAQs)

Frequently Asked Questions.png

1.What is PTFE lined?

Answer: PTFE lined refers to the application of a PTFE (Polytetrafluoroethylene) coating or liner to the interior surfaces of various industrial equipment, such as pipes, reactors, and vessels. This lining process uses PTFE, known for its outstanding chemical resistance, non-stick properties, and high-temperature tolerance, to protect the equipment from corrosion, chemical attack, and wear. The PTFE lining forms a barrier that prevents direct contact between the equipment's material and the processed substances, thereby extending the equipment's lifespan and maintaining the purity of the chemicals or products being processed.

2.What is a hydrothermal reactor with PTFE liner?

Answer: A hydrothermal reactor with a PTFE liner is a specialized piece of equipment designed for conducting chemical reactions under high pressure and temperature in a watery environment. The PTFE liner inside the reactor provides a chemically inert and non-reactive surface, ensuring that the reactants or solvents do not corrode the reactor's body. This type of reactor is commonly used in research fields such as material science and geochemistry for synthesizing crystals, nanoparticles, and other compounds under controlled conditions. The PTFE liner allows for a wide range of chemical experiments while maintaining the integrity and purity of the reaction mixtures.

3.What is the temperature range for PTFE lining?

Answer: The temperature range for PTFE lining typically extends from -200°C to +260°C (-328°F to +500°F). PTFE maintains its exceptional chemical resistance and physical properties within this wide temperature spectrum, making it suitable for a variety of industrial applications that involve extreme temperature conditions. This broad temperature tolerance allows PTFE-lined equipment to be used in processes requiring cryogenic conditions as well as those necessitating high-temperature resistance, offering versatility and reliability across diverse chemical processes.

4.Why is Teflon used in autoclave?

Answer: Teflon, a brand name for PTFE, is used in autoclaves due to its remarkable chemical inertness, high-temperature resistance, and non-stick properties. In autoclaves, where sterilization and high-pressure reactions take place, Teflon components such as seals, gaskets, and liners play a crucial role in ensuring a contamination-free environment, resisting the corrosive effects of steam and chemicals, and preventing materials from sticking to the equipment. Its ability to withstand repeated sterilization cycles without degrading makes Teflon an ideal material for autoclave applications, especially in laboratories, pharmaceutical processing, and medical device manufacturing, where maintaining purity and avoiding cross-contamination are essential.

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