Method for stabilization of aqueous acrylamide solution
AssigneeMitsubishi Rayon Co., Ltd.
InventorsMasahito Oda, Katsuo Ishii
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Abstract
The present invention provides a method for conveniently stabilizing an aqueous acrylamide solution using a stabilizer which can be separated and removed easily. In the method for stabilizing an aqueous acrylamide solution according to the present invention, a microbial cell is added to the aqueous acrylamide solution at a dried cell weight concentration of 1 to 14000 mg/L.
Claims8
A method for preventing polymerization of an aqueous acrylamide solution during preservation and/or transportation of the acrylamide solution comprising:
- adding a microbial cell having nitrile hydratase activity to the aqueous acrylamide solution at a dried cell weight concentration of 1 to 14000 mg/L, wherein the microbial cell having nitrile hydratase activity is selected from the group consisting of Rhodococcus rhodochrous, Escherichia coli MT-10822 (Accession number:
- FERM BP-5785), and mixtures thereof, and
- preserving and/or transporting the acrylamide solution in the presence of the microbial cell,
- wherein the presence of the microbial cell in the acrylamide solution prevents polymerization of the aqueous acrylamide solution.
A method for reducing foamability of an acrylamide solution during transportation, concentration, distillation, and/or crystallization of the acrylamide solution comprising:
- adding a microbial cell having nitrile hydratase activity to the aqueous acrylamide solution at a dried cell weight concentration of 500 mg/L or lower, and
- transporting, concentrating, distilling, and/or crystallizing the acrylamide solution in the presence of the microbial cell,
- wherein the microbial cell having nitrile hydratase activity is selected from the group consisting of Rhodococcus rhodochrous, Escherichia coil MT-10822 (Accession number:
- FERM BP-5785), and mixtures thereof, and
- wherein the presence of the microbial cell in the acrylamide solution reduces foamability of the aqueous acrylamide solution.
Dependencies are inferred from the claim text.