Isocyanates are the key raw materials for the preparation of polyurethanes. The two main varieties are MDI (diphenylmethane diisocyanate) and TDI (toluene diisocyanate). The industry is highly concentrated and only a few companies in the world have manufacturing technology.
China's isocyanate industry is currently in a period of rapid development. In 2007, domestic consumption of isocyanate was MDI 710,000 tons, TDI 380,000 tons, domestic production was MDI 400,000 tons; TDI 220,000 tons. The main production companies are as follows:
product
Company Name
Production capacity (10,000 tons)
Total capacity (10,000 tons)
MDI
Yantai Wanhua
32
56
Shanghai Lianheng ( BASF/HUNTSMAN )
twenty four
TDI
Gansu Yinguang
5
29
Cangzhou Dahua
3
Taiyuan Blue Star
3
Laiyang Juli
2
Shanghai BASF
16
Due to the rapid development of the domestic polyurethane industry, the demand for isocyanates has grown at a rapid rate and the production capacity has been seriously insufficient. Foreign isocyanate manufacturers have set up factories in China, and the focus of global isocyanate production will gradually shift to the Asia Pacific region. The launch of new projects in the next few years will allow domestic isocyanate production to increase rapidly. The main new projects are:
product
Company Name
New capacity (10,000 tons)
Total capacity (10,000 tons)
MDI
Yantai Wanhua
48
83
BAYER ( Shanghai )
35
TDI
Gansu silver (including Huludao 50000)
10
65
Cangzhou Dahua (including Huanghua 100,000)
12
Taiyuan Blue Star
2
Laiyang Juli
3
Shanghai BASF
8
Shanghai BAYER
30
In addition, there are several sets of projects waiting for approval. The successful implementation of the above projects will completely change the current situation of relying on imports. China will also gradually switch from isocyanate importer to exporter.
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