Chemistry of inorganic compounds – Halogen or compound thereof – Sulfur containing
Patent
1985-09-16
1986-05-20
Straub, Gary P.
Chemistry of inorganic compounds
Halogen or compound thereof
Sulfur containing
423465, 423468, 422 7, 568617, 239 10, C01F 750, C01B 1745, C23F 1104, C07C 4311
Patent
active
045900540
ABSTRACT:
The color level of poly(tetramethylene ether) glycol made by polymerizing tetrahydrofuran using fluosulfonic acid as the catalyst is significantly lower if the fluosulfonic acid contains no more than about 1200 ppm of iron sulfites.
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patent: 2430963 (1947-11-01), Stephenson et al.
patent: 2447476 (1948-08-01), Kulka
patent: 3957959 (1976-05-01), Wheatley et al.
patent: 4115408 (1978-09-01), Baker
Corrosion and Deposits in Coal and Oil-Fired Boilers and Gas Turbines, American Society of Mechanical Engineers, New York, 1959.
Kasper William W.
Quon Willard L.
Van Domelen Timothy D.
E. I. Du Pont de Nemours and Company
Kunemund Robert
Straub Gary P.
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