Enhanced method for monitoring the deposition of organic materials in a papermaking process
AssigneeNalco Company
InventorsSergey M. Shevchenko, Michael J. Murcia, Rodney H. Banks
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Abstract
A method for monitoring the deposition of one or more organic materials dispersed in an aqueous medium in a papermaking process comprising: measuring the rate of deposition of the organic materials from the aqueous medium on-to a quartz crystal microbalance having a top side contacting with the aqueous medium coated with a layer containing a non-swelling epoxy resin or a silicone containing polymer, and a second, bottom side isolated from the aqueous medium is disclosed. Additionally, a method for measuring the effectiveness of an inhibitor that decreases the deposition of the organic materials in a papermaking process is also disclosed.
Claims15
A method for monitoring the deposition of one or more organic materials dispersed in an aqueous medium in a papermaking process comprising:
- measuring the rate of deposition of the organic materials from the aqueous medium on-to a quartz crystal microbalance having a top side contacting with the aqueous medium coated with a layer containing a cured non-swelling epoxy resin or a silicone containing polymer, and a second, bottom side isolated from the aqueous medium.
A method for measuring the effectiveness of inhibitors that decrease the deposition of one or more organic materials in a papermaking process comprising:
- a. monitoring one or more organic materials dispersed in an aqueous medium in a papermaking process comprising measuring the rate of deposition of the organic materials from the aqueous medium onto a quartz crystal microbalance having a top side contacting the aqueous medium coated with a layer containing a non-swelling epoxy resin or a silicone containing polymer, and a second, bottom side isolated from the aqueous medium;
- b. adding an inhibitor that decreases the deposition of the organic materials from the aqueous medium;
- and
- c. re-measuring the rate of deposition of the organic materials from the aqueous medium onto the coated surface of the quartz crystal microbalance.
A method for measuring the effectiveness of inhibitors that decrease the deposition of one or more organic materials in a papermaking process comprising:
- a. monitoring one or more organic materials dispersed in an aqueous medium that simulates a papermaking process comprising measuring the rate of deposition of the organic materials from the aqueous medium onto a quartz crystal microbalance having a top side contacting the aqueous medium coated with a layer containing a non-swelling epoxy resin or a silicone containing polymer, and a second, bottom side isolated from the aqueous medium.
- b. adding an inhibitor that decreases the deposition of the organic materials from the aqueous medium;
- and
- c. re-measuring the rate of deposition of the organic materials from the aqueous medium onto the coated surface of the quartz crystal microbalance.
Dependencies are inferred from the claim text.