18? Chemical Technology and Economics Volume 18 CHEMICALTECHNO-ECONOMICS Several fine chemical products that chlor-alkali companies can consider developing Liang Cheng (Nanjing Chemical Plant, Nanjing 210038) Abstract introduces several types of chlorine-based fine chemical intermediates that chlor-alkali companies can consider developing

Domestic and foreign production conditions and market conditions, and put forward some suggestions.

Keywords Chlorinated paraffin; benzyl chloride; p-dichlorobenzene; propylene oxide; chloroacetyl chloride Article number 1006-253X (2000) 03-0018-05 CLC classification number TQ114 Document identification code B Since the 1990s, developed countries

The chlor-alkali product structure has undergone tremendous changes: it is advancing at a strong acceleration towards high technology, high added value, refinement and specialization.

Fine chemicals are at the forefront of the development of the world's chlor-alkali industry and have become the focus of fierce competition among chlor-alkali companies and their winning strategy in the 21st century.

my country's "Ninth Five-Year Plan" and the outline of long-term goals for 2010 also clearly stipulate that the chemical industry must take a path of refinement.

my country's chlor-alkali enterprises are facing increasingly fierce competition and challenges from domestic and foreign countries.

Fine chemicals have little dependence on resources, low investment, quick results, high added value, large profits, and high export exchange rates.

Therefore, the development of fine chemicals is the key for chlor-alkali enterprises to achieve fundamental changes in economic growth patterns.

The key for chlor-alkali enterprises to develop fine chemicals is to focus on the core of "chlor-alkali balance", vigorously adjust the product structure, extend development to the middle and lower reaches, realize "one-stop" serial production of upstream, middle and lower reaches, diversify operations, universalize downstream products and equipment, and cultivate

Good fine chemical "product tree" or "product chain".

Only in this way can we comply with the development trends of the chlor-alkali industry and the world's chemical industry, and gain a firm foothold in the increasingly fierce competition and go global.

In view of this, the author intends to introduce the production and development trends of several basic products with promising market prospects, large demand, and urgent need for development, so as to provide reference for chlor-alkali enterprises to develop fine chemical products.

1. Chlorinated paraffin Chlorinated paraffin-70 is a fine organochlorine product with large chlorine consumption and large output. It is mainly used for glass fiber reinforced polyester, polystyrene, phenolic resin, urea-formaldehyde resin, unsaturated resin,

Flame retardant for polymer materials such as epoxy resin, polyolefin, polyurethane, additive for water- and chemical-resistant paints and fire-retardant coatings, and additive for adhesives; it can also be used as brightener, penetrant, cement, ink,

Flame retardant for fiberglass, canvas production and wallpaper, lubricant additives, underwater antifouling coatings, etc.

1.1 Production Overview The main foreign manufacturers of chlorinated paraffin-70 include: ICI Company of Dover, USA; Hoechst Company of Germany; Ajinomoto Company and Electrofine Company of Japan.

Before 1995, most manufacturers used carbon tetrachloride as the solvent for photocatalytic chlorination to produce chlorinated paraffin-70. After 1995, developed countries implemented the Montreal Convention and closed down carbon tetrachloride process units and switched to water

It's similar, but most manufacturers keep the current technology strictly confidential.

The domestic production capacity of chlorinated paraffin-70 is approximately 15,000 t/a.

There are nearly 30 major manufacturers including Shenyang Chemical Co., Ltd., Harbin Yibin Chemical Co., Ltd., Shanghai Chlor-Alkali Plant, Xiamen Electrochemical Plant, Juhua Group Company, Gedian Chemical Group, etc. Most of their production scales are 0.5 to 3kt/a.

.

The production methods used include carbon tetrachloride photooxidation method, aqueous suspension method, thermal oxidation method, and bulk method, with carbon tetrachloride photooxidation method being the main method.

1.2 Market Overview Due to the restrictions imposed by the Montreal Convention, developed countries have closed down their original production facilities, while many new processes are still under development. Therefore, there has been a large gap in the international market for high-quality chlorinated paraffin-70 since 1996.

From 1981 to 1996, the international price of chlorinated paraffin-70 was basically stable at US$1.52/kg.

Prices rose suddenly in July 1997, and demand in the international market was tight.

At the 1997 East China Commodity Fair and Tianjin Export Commodity Fair, foreign businessmen ordered nearly 10,000 tons of chlorinated paraffin-70 from my country.

At present, the price of chlorinated paraffin has declined and will stabilize in the future.

Therefore, as long as the quality is good and the price is appropriate, my country's chlorinated paraffin-70 will have a great competitive advantage in the international market, with huge export potential and promising market prospects.

The plastic products industry is the main consumer sector of chlorinated paraffin-70.