The following paragraphs describe bio-based acrylic acid production from glucose syrup, where the glucose is initially fermented to generate 3-hydroxypropionic acid (3-HPA), which is then dehydrated to produce acrylic acid. Figure 1 presents a simplified flow diagram of the process. Figure 1. This...
1.A process for producing (meth)acrylic acid, which comprises the step of feeding a feed stream of crude (meth)acrylic acid obtained by vapor phase catalytic oxidation to a distillation column mainly for the separation of (meth)acrylic acid and acetic acid, to separate acetic acid from (meth...
Therefore, the Cu–BEA catalyst should be the most promising for the AA production. Fig. 8 Energy diagram of lactic acid dehydration into acrylic acid over dimeric M–O–M complex in the BEA zeolite, where M = Co (green), Cu (blue) or Fe (red). Energy level of (1) M–O–M...
A process for the long-term operation of a heterogeneously catalyzed gas phase partial oxidation of acrolein to acrylic acid, in which the temperature of the fixed catalyst bed is i
Therefore, 30 wt.% epoxy-based antifouling paints were prepared with the addition of 10, 15, 20, or 30 wt.% of polyaniline/acid. The prepared antifouling paints were applied to the surface of the steel with a thickness of 150 µm, and the results of the polarization and impedance ...
In this study, nanofibers of poly (acrylic acid) (PAAc), polyacrylamide (PAAm) and poly (vinyl alcohol) (PVOH) were prepared using the electrospinning technique. Based on the Taguchi DOE (design of experiment) method, the effects of electrospinning parameters, i.e., needle tip to collector ...
and e. Film c had the best acid resistance and alkali resistance. This may be because when the molecular weight of epoxy resin is too large, the grafting of acrylic monomers on the side chain leads to the poor mobility of the chain segments. During the curing process, the poor fluidity ...
To investigate the utility of acrylic monomers from various plant oils in adhesives manufacturing, 25–45 wt. % of high oleic soybean oil-based monomer (HOSBM) was copolymerized in a miniemulsion with commercially applied butyl acrylate (BA), methyl meth
The widening and intensification of the peak at 1047 cm−1 is due to the generation of the carboxylic acid group [34,35]. The changes in the infrared spectra indicate that the alkaline hydrolysis process consumes the ester group and most of the cyano group on the molecular chain of ...
Finally, DMEA was used to neutralize the carboxylic acid groups, and stable waterborne epoxy acrylic emulsions were obtained by high-speed dispersion in water. In addition, the formulation process was optimized, and the effects of the process formulation on the storage stability and grafting ratio ...