摘要:
Monitoring and recycling gases from acetic acid hydrogenation reaction to maintain a constant pressure in the hydrogenation reaction system. Purging of the vapor stream comprising hydrogen may be limited or reduced. Further purging of the by-product may be from the dissolved by-product gases.
摘要:
In one embodiment, the invention is to a vinyl acetate/diacetoxyethylene copolymer, processes of making the copolymer and processes of hydrolyzing said copolymer to form a copolymerized polyvinyl alcohol.
摘要:
In one embodiment, the invention is to a process for producing a vinyl acetate composition by contacting a vinyl acetate stream with acetic acid, ethylene, and oxygen to form a reaction mixture and reacting the reaction mixture in a reactor under conditions effective to form a crude vinyl acetate composition comprising vinyl acetate, water, acetic acid and at least 0.1 wt % diacetoxyethylene.
摘要:
In one embodiment, the invention is to a process for producing a vinyl acetate composition by contacting a vinyl acetate stream with acetic acid, ethylene, and oxygen to form a reaction mixture and reacting the reaction mixture in a reactor under conditions effective to form a crude vinyl acetate composition comprising vinyl acetate, water, acetic acid and at least 0.1 wt % diacetoxyethylene.
摘要:
Monitoring and recycling gases from acetic acid hydrogenation reaction to maintain a constant pressure in the hydrogenation reaction system. Purging of the vapor stream comprising hydrogen may be limited or reduced. Further purging of the by-product may be from the dissolved by-product gases.