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Articles 31 - 32 of 32
Full-Text Articles in Polymer Science
An Industrial Process For The Production Of Nylon 6 6 Through The Step-Growth Reaction Of Adipic Acid And Hexamethylenediamine, David Wallace Jacobson
An Industrial Process For The Production Of Nylon 6 6 Through The Step-Growth Reaction Of Adipic Acid And Hexamethylenediamine, David Wallace Jacobson
Chemical Engineering Undergraduate Honors Theses
A continuous, two stage, four reactor system process is presented here for the proposed purpose of nylon 6 6 manufacture at the rate of 85 million lbs per year. Report components include: process descriptions, simulation methods and results, economic analysis, EH&S considerations, process control descriptions, and a general recommendation for how to proceed with plans enclosed. The general design of the plant is a two stage system composed of one PFR used for the formation of nylon salt and low molecular weight nylon chains, followed by three CSTR’s used for increasing nylon molecular weight. The overall process has been found …
Designing Magnetically Responsive Ultrafiltration Membranes, Robert William Dong
Designing Magnetically Responsive Ultrafiltration Membranes, Robert William Dong
Graduate Theses and Dissertations
Ultrafiltration (UF) membranes developed out of a need for protein separation processes. Currently, they are used in a variety of industries ranging from food manufacturing to pharmaceuticals for two main purposes: concentration, separation, and buffer exchange. UF membrane processes in product streams undergo frequent use and like all membrane processes experience a gradual decline in performance due to fouling phenomena both irreversible and reversible. Ultimately, performance declines to a point where the UF membrane needs to be replaced. Frequent replacement of UF membranes is detrimental to major industries that require high product throughput using UF processes. Thus, it is important …