Electronic‑Grade High‑Purity Distillation Unit
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Electronic‑Grade High‑Purity Distillation Unit
- Product Details
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Overview
Due to the rapid development of the domestic electronic consumer market, there is a huge demand for chips in various types of electronic industries. Therefore, the semiconductor industry in China has developed rapidly in the past two years. Electronic materials, electronic grade solvents, electronic specialty gases and other electronic chemicals are crucial for chip manufacturing processes. Therefore, many large chemical enterprises in China have conducted extensive research and investment in this field.
The production process of electronic chemicals mainly consists of three modules: reaction synthesis, separation and purification, and product filling. Due to the extremely high equipment requirements for the production of electronic grade chemicals, there is currently no equipment for this type of product in the domestic market. Therefore, AISHENGKE company has cooperated with production enterprises and well-known research institutions in China to conduct process and equipment research and design according to customer needs, and developed integrated continuous pilot and production devices that can be used to produce electronic grade specialty gases, electronic materials, electronic grade solvents, etc. At present, this device has been widely used in many well-known enterprises and has been verified by the market and recognized by industry experts.
Product Overview
The high-purity continuous distillation unit is mainly composed of tower kettle reboiler, distillation tower, tower top condenser, reflux ratio distributor/reflux tank, tower internals, tower top collection tank, tower kettle collection tank, valves and pipe fittings, pumps, control system and other main components. All equipment materials are made of 316L stainless steel. The structure design of the tower kettle reboiler is mainly selected and designed according to the processing capacity and process requirements. The heating method mainly uses thermal oil/steam, and the heat exchanger is generally an external tube heat exchanger or an internal coil type. The tower top cooling mainly uses circulating refrigerant for heat exchange. Due to the experimental scale, cooling towers are generally not installed on site, so external circulating refrigeration equipment is generally matched for small-scale or pilot scale experiments.
The high-purity continuous distillation unit is equipped with multiple specifications and models, which can be selected and matched for different product refining and processing needs. The equipment and material contact parts of the high-purity distillation unit are all treated with electrolytic polishing, which adopts Japanese processing technology. The post-treatment process belongs to the core key and technical confidentiality part. The valves are EP grade diaphragm valves or bellows valves, and the system pipeline connection method adopts VCR or welding form. The equipment connection part is all flange connected, which is very easy to install and replace. The instrument part adopts EP grade products, and the level gauge and material transfer pump belong to AISHENGKE company's patented customized parts. The entire dismantling system needs to be assembled and welded in a clean room during the integration process. The design of the entire system has extremely high requirements for processing and assembly. If the application of electronic grade chemicals belongs to the semiconductor grade, the entire separation and purification process design and equipment requirements need to be designed separately, which is very different from this design. The entire system design and manufacturing need to be upgraded by one level
The control system of this device adopts PLC integrated control. The automatic control system can achieve precise control and system stability of pressure, temperature, and flow by viewing the process interface, browsing and viewing stored historical process data, and accessing various process parameter curves. It is equipped with multi-level key protection systems and ensures the safety of the device and operators through some safety interlock designs.
The design goal is to establish a high-quality and high-level testing device installation platform for customers. The overall level of the device requires a high degree of automation, good data accuracy and repeatability, easy operation, safety and reliability, and the ability to operate stably for a long period of time.
Technical Parameters
Continuous design according to customer requirements
Equipment materials: stainless steel 316L, Hastelloy, fluorine lining, etc.
Tower diameter (pilot scale): DN50, DN80, DN100, DN150, etc. The specific specifications are subject to the process calculation results;
Tower height: Design and customize according to the theoretical number of plates obtained from ASPEN calculations or small-scale test results based on physical properties and separation requirements;
Packing type (post-treatment): 5mm θ ring metal wire mesh packing, glass spring packing, PTFE ball ring, regular packing, etc.
Tower kettle design temperature: normal temperature~200 ℃, normal temperature~300 ℃
Design pressure: -1 bar to 10 bar (designed according to customer requirements).
Reflux method: liquid level difference reflux/forced reflux. The liquid level difference reflux is controlled by a reflux ratio distributor (ASK patented product), with a reflux ratio adjustment range of 1:99/99:1; Reflux tank+pump can also be used for control to achieve reflux ratio adjustment.
Control system: PLC integrated control, realizing temperature, pressure, reflux ratio, flow rate, liquid level, mixing speed control and real-time data acquisition.
Optional:
Vacuum system, heating cycle unit, refrigeration cycle unit, high and low temperature integrated machine: domestic/imported for customers to choose from.
The above parameters are for reference only, and specific technical requirements can be customized according to customer needs.
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