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This site produces a variety of alkylamines including ethylamines (mono, di and tri), isopropylamines (mono and di) and a wide range of specialty alkylamines, such as dimethylethylamine, diethylaminopropylamine, secbutylamine, 3-methoxypropylamine and tetramethylpropylenediamine.
Foundries that use triethylamine (TEA) will need amine scrubbers, but those that use dimethylethylamine (DMEA) will not, Stone said.
This tertiary amine catalyst has a curing efficiency exceeding triethylamine (TEA) and similar to that achieved using dimethylethylamine catalysts.
With some changes in corebox design, blowing and venting techniques and sand adjustments, plus a new gas, dimethylethylamine (DMEA) that reduced the curing time by a factor of three, the coldbox coremaking system began to attract foundry industry attention.