Polyoxymethylene) dimethyl ethers

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We have bulk material handling capability and can handle 100-150 MT of bulk material on a daily basis depending upon the packing requirement. As of now we are planning to enhance this capacity to 250 MT per day. Apart from the prime and near prime materials, we handle all type of wastes coming out of a polymerization plants like: plant sweeps , blow down powders, reactor powders , lumps etc. We have strong relationships with leading players in the petrochemical business in UAE, SAUDI ARABIA, OMAN, QATAR and KUWAIT.

The carbonyl group in 1 takes a proton from acidic hydronium . The protonated carbonyl group 2 is activated for nucleophilic addition of the alcohol. The structures 2a and 2b are mesomers . After deprotonation of 3 by water the hemiacetal or hemiketal 4 is formed. The hydroxyl group in 4 is protonated leading to the oxonium ion 6 which accepts a second alcohol group to 7 with a final deprotonation to the acetal 8 . The reverse reaction takes place by adding water in the same acidic medium. Acetals are stable towards basic media. In a transacetalisation or crossacetalisation a diol reacts with an acetal or two different acetals react with each other. Again this is possible because all the reaction steps are equilibria.

Polyoxymethylene) dimethyl ethers

polyoxymethylene) dimethyl ethers


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