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2014 caustic soda annual meeting: China's caustic soda industry leads the world in some technologies

wallpapers News 2020-07-30

At present, the caustic soda industry is in the painful adjustment period of declining operating rate.

In order to reduce cost increase efficiency cope with adverse market environment, many caustic soda enterprises are improving their competitiveness with technological progress.

Technological innovation in brine refining process is in the forefront of the world, some technologies have been extended to foreign countries.

This is the information learned by the reporter of China chemical industry news at the 2014 national caustic soda industry technology annual meeting held in Hefei from May 28 to 30.

It is understood that for a long time, the capacity growth has been far faster than the growth of production market consumption, the operating rate of caustic soda industry has been declining.

Since this year, the caustic soda industry continues to face the difficult situation of increasing market supply weak dem, the operating costs of enterprises continue to increase.

"In the increasingly competitive domestic chlor alkali market, only through technological innovation application of new technologies can we take the lead.

" Zhang Xin, Assistant Secretary General of China Chlor Alkali Industry Association, said.

Liu Guozhen, leader of caustic soda expert group of China Chlor Alkali Industry Association, told reporters: "facing the current predicament, the most important thing for enterprises is to seize the cost opportunity.

The production cost of chlor alkali mainly includes direct current cost, salt cost, chemical input, membrane cost, investment, etc Liu Guozhen said that at present, the technological innovation of some caustic soda in China has been in the forefront of the world, especially the brine refining process.

Membrane refining ceramic membrane brine process fill in the domestic blank.

Ceramic membrane, polytetrafluoroethylene membrane other brine refining membrane technologies are applied in most enterprises.

Some technologies go abroad, such as Shanghai Yulong membrane separation equipment Co., Ltd. membrane denitration technology has been extended to Vietnam Syria.

Liu Guozhen introduced that the direct current cost is the most important cost of chlor alkali production, the power consumption is closely related to the electrolysis method, cell design, membrane performance brine quality.

Therefore, the enterprise has increased the technical investment in the aspects of membrane electrode distance transformation, new type of cell selection, membrane selection performance maintenance.

At present, the membrane electrode distance technology has been widely applied in China, new energy-saving electrolysis has been achieved Process oxygen cathode technology has also begun to be industrialized.

The important way to reduce the cost of salt environmental protection is to reuse the waste brine technology.

For example, in the production of hydrazine hydrate MDI, some enterprises reuse the by-product waste brine for ion-exchange membrane electrolysis, which can reduce the cost of salt environmental treatment costs at the same time.

The best membrane strategy can be formed by improving membrane efficiency replacing new membrane in time, the cost can be reduced.

Some enterprises have adopted foreign advanced membrane products, while Dongyue Group, as a domestic ion-exchange membrane manufacturer, has actively researched developed a new type of high current density ion-exchange membrane conforming to the development direction of electrolytic cell, so as to further optimize the product performance help to save energy reduce consumption.

Technological innovation can also help reduce investment.

For example, the core of investment in electrolysis system is electrolysis brine system.

Some enterprises adopt super large electrolytic cell new brine refining technology, which can greatly reduce investment.

For example, the brine primary refining technology developed by Shong Binhua Brayne Co., Ltd. gore company does not need pretreatment device, which reduces investment process links, is a promising innovation process.

Liu Guozhen said that in the future, enterprises should pay more attention to technologies such as super large electrolytic cell, high-quality brine refining, waste brine reuse, salt mud reinjection, chlorine production by hydrogen chloride oxidation, refining of phosphate brine.

However, how to master new technology, avoid production technical risks, reduce the cost of technology conversion are the challenges faced by enterprises.

Facing the current market situation, domestic enterprises should be ready for technological change.

(source: China Chemical Industry News).


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TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years' experience in providing super high-quality chemicals and Nanomaterials. The nitride powder produced by our company has high purity, fine particle size and impurity content. Please contact us if necessary.
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