converse pas cher 1,4 - butanediol production and

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1,4 - butanediol production and demand of

There I, 4 a BD production plant are based on the acetylene Preparation I, 4 - butanediol. =, I, 4 - butanediol demand in dynamic market survey showed that in 1989, I, 4 an increasing trend in the demand for BD, I, 4 an increase of BD 6 to 10, is also rising demand for its derivatives, Y a butyrolactone 6% annual growth, an increase of four oxygen furan polymer units 4,[link widoczny dla zalogowanych],1,4 a BD product PBT growth of more than 10. U.S. I,[link widoczny dla zalogowanych], 4 BD's consumption structure of a table below. According to \, for Japan's No. 2 in 1991, Shanxi Chemical Industry 57 * 2 lay the passage of a 1,4-D mesh: ointment consumption (tons / year) from 1979 to 1984, consumption of products, take along in 1979, the percentage of total () consumption in 1984 accounted for percentage () of the average annual growth rate () d Lu Ying feeding 5.756.47. O50.7-4.5Y vinegar in a D 2. O19.82.820.37.9PBT1.312.92.115.29. O PU alcohol O. 98.91.712.313.5 other 0.22O. 21.5 - Total 1O. 1l3.81, 4 a BD manufacturers planning to expand its domestic and export markets. According to \1,4-BD in the entire production of a 70% available to the PBT and polyurethane manufacturers. Because 1,4-BD is the production of a polyurethane and polyethylene terephthalate (PBT) of the main monomer, with domestic TDI, MDI and PBT expansion of production scale, the demand is bound to 1,[link widoczny dla zalogowanych],4 with a BD the increase. Yantai Synthetic Leather Plant in Japan in 1984, has introduced an annual output of 10,000 tons of MDI devices, the introduction of the current MDI plant will be put into operation the second phase, Taiyuan Chemical Plant Head f the annual output of 20,000 tons into the TDI plant will also be put into operation in 1992, plans to invest in Jiangsu Huaiyin 400 million yuan (including the introduction of technology and key equipment used in foreign exchange $ 40,000,000) annual production capacity of 20,000 tons of MDI devices. Put into operation of these devices is bound to 1,[link widoczny dla zalogowanych],4-BD's requirements for a greatly increased. In addition, China's? BT Pat the successful development of production technology, Beijing Institute of Chemical Industry, Shanghai polyester plant, dawn Chemical Research Institute and other units have small production units have been built PBT, and some have been expanding the production scale, and with the PBT as a new general engineering Plastics are increasingly expanding their application areas, the demand for PBT will continue to increase. In addition, the 1,4-BD is also a large number of common low boiling point solvent used in the production of tetrahydrofuran and polymer products, used in paints and electronics sector, Y-butyrolactone, and for the pharmaceutical, cosmetics, textiles, food and other fields . Thus, the next few years the demand for 1,4 of a BD will continue to show substantial growth trend. �� . . �� cry cry �� cleaning agents for a new type of wool with natural surfactant saponin as the main raw materials of tea cleaning agents for wool production has recently identified and put into mass production by the parties concerned. The product was slightly acidic, is a brown liquid scouring agent, the county has a good wetting, emulsification, penetration and leveling properties to oil, especially suitable for washing raw wool, washed wool, soft, flexible, high tensile strength , bright clean since. This product than alkaline scouring agent with no damage to the wool fiber, non-Chol of thorns, etc., is a new type can improve the quality of washed wool scouring agent. From the \NaOH for most of the world is accompanied by the electrolytic method were produced chlorine gas, so the technology is applicable to Taiwan,[link widoczny dla zalogowanych], the current requirement of a decline in chlorine. This process, the use of polyethylene acetate membrane separation of high molecular weight impurities in the waste NaOH, these impurities include: paper and other industries, and pulp fiber cable allegedly silicon ester, which is applied to industrial films for the first time alkali solution. Xu Feng Abstract muddy from the \ More articles related to topics：

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