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Polyaluminium chloride(PAC)Industry research

Polyaluminium Chloride (PAC)  with traditional catalyzed the inorganic flocculant is the fundamental difference between traditional inorganic flocculant for low molecular crystal salt, and the effect of the polymer structure form of the changeable by multiple carboxyl complex composition, flocculation precipitation speed, PH value for a wide range of pipeline equipment is noncorrosive, water purification effect is clear, and can effectively the removal of water color SS and COD, BOD and arsenic, mercury and other heavy metal ion, the products are widely used in the drinking water, industrial water and waste water treatment field.

From market analysis, domestic production enterprise faces two aluminium Polyaluminium Chloride (PAC)  is a good news. One is the production equipment investment and cost in our country is far lower than that abroad, so products in the international market have larger competitive advantage, current net exports each year about SanSiQianDun. The domestic enterprise can completely over the next few years will be their products to the international market. 2 it is the next few years will be more growth in domestic demand. Our country the sewage disposal goal is put forward in 2010 on the urban sewage treatment rate is 50%, according to estimation countries will spend 650 billion yuan RMB to management of industrial wastewater and urban sewage.
Polyaluminium Chloride (PAC)  as water treatment agent has aluminium several advantages. First is performance advantage. It in industry is the biggest use of as water treatment flocculating agent, because the advantage prominent, wide range than the traditional flocculation agent may decrease 1/3 to 1/2, cost can save more than 40%, has become a good applicability and recognized at home and abroad at present. In addition, it also can be used to purify drinking water and water supply special water treatment, such as iron, except in cadmium, fluoride, except the radioactive pollutants, in addition to float oil etc.

In recent years has become aluminium Polyaluminium Chloride (PAC)  technology is mature, market sales big flocculating agent, and has gradually replace traditional flocculant trend. Western European countries in 1976 to start producing aluminium Polyaluminium Chloride (PAC) , used as water treatment flocculant; The United States, Canada has already approved in 1983 on the city water supply and industrial wastewater treatment. European Polyaluminium Chloride (PAC)  effect of the application has the municipal water treatment accounts for about 70% of the market, Japan the municipal water treatment accounts for about 90% of the market.
Next is the economic advantages. Our country has the rich raw material to produce Polyaluminium Chloride (PAC)  is concerned, and production process line. The main raw materials used in our country is developing the use of their own conditions mineral resources. China aluminium aluminium first Polyaluminium Chloride (PAC)  ash as raw materials. Due to the low cost of aluminum ash, simple production process, production process in 1970 started spreading quickly. But with aluminum ash production of aluminium Polyaluminium Chloride (PAC)  impurity is more, 1980 years later has not used for water purification. In early 1980, our country mainly adopts aluminium Polyaluminium Chloride (PAC)  of production material, clay kaolin mining and bauxite, in addition to other than iron content, the other products can be up to international advanced level index. The beginning of the 90 s, China has gradually turned to the aluminum hydroxide used raw materials. In addition, there are some factories use metal aluminium and aluminium as raw materials.

Now, the domestic technology has been close to or has reached the international advanced level. Polyaluminium Chloride (PAC)  method many aluminium, the process can be divided into acid method, process, neutralization, pyrolysis reaction method, pressure, mix gel method, electrodialysis method, the method, etc. Solid product is the liquid products by spray drying or get drum drying. The spray drying is an ideal way to dry, and is suitable for mass production, and the scale of production of smaller businesses in the drum drying is feasible.