China Chemical Industry News reporter learned from Shandong Taihe Water Treatment Company on July 3 that the largest domestic 300,000 tons / year water treatment agent project under construction will use a continuous process of independent research and development, so that fine chemicals can be continuous, complete sets, automation and large-scale production like bulk chemical products. This innovation is expected to accelerate the integration of the domestic water treatment agent industry, so that the production capacity is concentrated to leading enterprises, and also help to promote the reform of fine chemical production mode and industrial structure.
The main products of the project include organic phosphine scale inhibitors, scale inhibitors and dispersants series products, sterilizing algae killer products, phosphorus-free corrosion inhibitors th-907, etc., as well as hydrochloric acid, phosphorous acid, acetyl chloride, methanol and other by-products. These water treatment agent products can be widely used in industrial circulating water, boilers and heating water, oilfield water injection, reverse osmosis membrane and other systems.
According to reports, the first phase of the project 60,000 tons / year hydroxyethylene biphosphonic acid project will be put into production this month, the second and third phases of the project will be completed and put into operation before the end of this year, when Shandong Taihe will become the world's largest producer of organic phosphine.
According to the production and technology leader of Shandong Taihe Company, in the past, water treatment agent products such as hydroxyethylene diphosphonic acid (hedp), 2-phosphonate butane-1, 2,4-tricarboxylic acid (pbtca) were generally processed by intermittent single kettle operation, and the annual output was only several thousand tons. After more than ten years, Shandong Taihe has taken the lead in independently developing a continuous method and complete production process of hedp, pbtca, aminotrimethylenephosphonic acid (atmp), poly epoxysuccinate (pesa) and dodecyl dimethylbenzyl ammonium chloride and other water treatment agent products. Continuous production has made the annual production capacity of a single unit jump to tens of thousands of tons, and the scale of a single unit has reached the largest in the world.
Continuous production has another significant advantage, that is, the product quality is stable and controllable, such as the production of hedp co-production of acetyl chloride product purity of more than 99.5%, and to achieve the recycling of various resources, reduce energy consumption and material consumption, more environmentally friendly.
Shandong Taihe Company's 300,000 tons / year water treatment agent project will also apply DCS and PLC systems for the first time, and the level of automation has been significantly improved. Unlike the past intermittent single kettle operation, which mainly relies on manual labor, the operator can implement centralized control of the production process in the control room, the control accuracy is high, the quality and safety are greatly improved, and the stability and safety of the device and personnel are guaranteed.
According to the reporter of China Chemical Industry News, water treatment agents belong to an important branch of fine chemicals. There are many types of fine chemicals, but the amount of individual varieties is small, and for a long time, it has mainly been based on intermittent single-kettle operation and processing. This also causes the production of enterprises to be very scattered, the technology is relatively backward, the equipment is relatively simple, and the quality and performance of the products produced are unstable. More importantly, the existence of a large number of workshop-style fine chemical manufacturers has brought great pressure to safe production and comprehensive utilization of resources. In recent years, the safety and environmental protection accidents caused by this in China have occurred frequently, sounding the alarm bell for the rectification and upgrading of the industry.
Expert opinion
Produced like a big chemical
Zhu Shengdong, professor of the School of Chemical Engineering and Pharmacy of Wuhan Polytechnic University: General fine chemical products are produced by intermittent method, manual operation, and the process parameters of the production process are not optimized, and the resource and energy consumption of unit products is much higher than that of continuous and automated production of bulk basic chemical products. For a long time, people have paid more attention to the technical transformation of the process for fine chemical production, and neglected to transform and optimize the production process from the perspective of engineering. Achieving continuous and automated production is the only way to enhance the international competitiveness of China's fine chemical products and promote the sustainable development of the industry, which is very urgent.
Gai Hengjun, associate professor of Qingdao University of Science and Technology: There are many fine chemical enterprises in China, according to incomplete statistics, there are currently about 20,000 in the country, basically small and medium-sized enterprises. According to the mature ideas and experience of large chemicals, the transformation of fine chemicals, and the realization of continuous and large-scale production of some fine chemical products, will help accelerate the concentration of the fine chemical industry and solve structural excesses and difficult problems such as safety and environmental protection. Shandong Taihe's innovative exploration has provided useful experience for the transformation and upgrading of China's fine chemical industry.
Yang Yuqi, Secretary-General of the Industrial Water Treatment Professional Committee of the China Chemical Industry Society: Water treatment agent is still a sunrise industry, and it is the only way for the healthy development of the industry to be excellent, stronger and bigger through scientific and technological innovation. The current water treatment agent market has not formed a sufficient scale, Shandong Taihe continuous method 300,000 tons / year water treatment agent project can significantly reduce costs, stabilize product quality, the future will better adapt to market demand, to achieve competitive advantages and opportunities.
News links
The water treatment agent industry needs to be integrated and upgraded
Water treatment agent is an important variety of fine chemicals, is the treatment of industrial water, domestic water and wastewater process used in the chemical agents, mainly including corrosion inhibitors, coagulants and flocculants, fungicides, scale inhibitors, pH adjusters and softeners, fluorine-containing compounds, activated carbon, defoamers and other performance chemicals, its main role is to control the formation of scale, sludge, reduce foam, reduce corrosion of materials in contact with water, remove suspended solids and toxic substances in the water, produce deodorization, decolorization, softening and stabilizing water quality and other effects.
At present, the product categories of China's water treatment agent industry are relatively complete, but there are three major problems in industrial development: low entry threshold, small investment, small scale, large number, disorderly market, and fierce competition. There are nearly 600 large and small water treatment pharmaceutical production enterprises in the country, while only about l0 have annual sales of more than 100 million yuan. The production level of various enterprises is uneven.
At present, China is facing multiple problems such as water shortage, drinking water safety is not guaranteed, water pollution situation is still severe, water conservation, improve the treatment and recycling rate of wastewater is very important, and vigorously develop the water treatment agent industry plays a vital role in it. If the water treatment agent industry wants to develop healthily, integration and upgrading are indispensable.