23 June 2010 07:16 [Source: ICIS news]
By John Richardson
SINGAPORE (ICIS news)--Bayer MaterialScience (BMS) is employing its breakthrough gas-phase phosgenation technology at its new toluene diisocyanate (TDI) plant at Caojing in China, the company’s CEO, Patrick Thomas, said on Wednesday.
“Gas-phase phosgenation has been the Holy Grail of the polyurethane industry for a long time and this technology has taken us 15-20 years to develop,” Thomas told ICIS in an interview.
“The technology reduces energy consumption by 60% and capital costs by 20-30% compared with conventional processes,” he added.
The new technology enables solvents to be used in gas-phase, whereas in conventional technology, solvents have to be constantly vaporized and condensed, resulting in the higher energy costs, Thomas said.
The 250,000 tonne/year TDI plant at Caojing would be brought on-stream at the end of the first quarter to mid-2011, he added.
The gas-phase technology is also part of a restructuring of the German major’s European isocyanates assets, said Thomas.
At the moment BMS produces both TDI and methylene di-p-phenylene isocyanate (MDI) at ?xml:namespace>
“We plan to upgrade our TDI production at
Demolition work has begun on a 190,000 tonne/year TDI plant at
The Brunsbuttel restructuring involves closing down a TDI plant and raising the site’s MDI capacity – currently 160,000 tonnes/year, Thomas said.
The first phase would involve raising capacity to 320,000 tonnes/year with the eventual aim of reaching 600,000 tonnes/year, he added.
The timing of the Brunsbuttel expansions would depend on the market, said Thomas
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