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公开(公告)号:US10920013B2
公开(公告)日:2021-02-16
申请号:US16326880
申请日:2017-09-17
Applicant: Dow Global Technologies LLC
Inventor: Nima N. Nikbin , Carlos M. Villa , Maria Jose Nieves Remacha , Irfan Khan , William H. Heath , John G. Pendergast, Jr. , Matthias Schaefer , Anna Forlin
Abstract: Alkylene oxides are polymerized in a tubular reactor. The alkylene oxide is continuously introduced into the tubular reactor through multiple introduction points located along the length of the tubular reactor. Monomer flow rates are increased along the length of the reactor to maintain a nearly constant concentration of unreacted alkylene oxide.
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公开(公告)号:US20190202983A1
公开(公告)日:2019-07-04
申请号:US16326880
申请日:2017-09-17
Applicant: Dow Global Technologies LLC
Inventor: Nima N. Nikbin , Carlos M. Villa , Maria Jose Nieves Remacha , Irfan Khan , William H. Heath , John G. Pendergast, Jr. , Matthias Schaefer , Anna Forlin
CPC classification number: C08G65/2696 , B01J8/0221 , B01J8/0278 , B01J19/2415 , B01J19/242 , B01J19/243 , B01J19/244 , B01J19/2475 , B01J2208/00088 , B01J2208/00212 , B01J2208/0053 , B01J2219/00094 , B01J2219/00164 , B01J2219/182 , B01J2219/1923 , C08G65/2663
Abstract: Alkylene oxides are polymerized in a tubular reactor. The alkylene oxide is continuously introduced into the tubular reactor through multiple introduction points located along the length of the tubular reactor. Monomer flow rates are increased along the length of the reactor to maintain a nearly constant concentration of unreacted alkylene oxide.
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