Method of using fluorescent tracers to monitor chlorine dioxide

Details Method of using fluorescent tracers to monitor chlorine dioxide Method of using fluorescent tracers to monitor chlorine dioxide

1996-12-16

1999-05-04

Chin, Peter

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With testing, sampling or analyzing

162 67, 162 87, 436 55, 436172, D21C 914

Patent

active

059001135

ABSTRACT:
The present invention provides a method of monitoring a papermaking system and unit operations contained therein to optimize the overall papermaking process. The method comprises employing a fluorescent tracer that is selectively carried through the entire papermaking system or in a specific unit operation and is sufficiently inert and sufficiently stable under the environmental and chemical conditions of the system from its addition point to the sampling point. A sample is withdrawn from the papermaking environment (either via `grab` or on-line side stream sampling) and the withdrawn sample subjected to analysis. The analysis comprises comparing the tracer concentration to a standard to determine the concentration of tracer in the sample and/or determining the time of first appearance of said tracer from addition point to the sampling point and/or subsequent decay of said tracer concentration at the sampling point. Finally, from this information process variables are adjusted to ensure stable paper machine operations and a high standard of paper quality.

REFERENCES:
patent: 3962029 (1976-06-01), Wettermark et al.
patent: 4783314 (1988-11-01), Hoots et al.
patent: 4992380 (1991-02-01), Moriarty et al.
patent: 5166074 (1992-11-01), Vessey et al.
patent: 5171450 (1992-12-01), Hoots
patent: 5304800 (1994-04-01), Hoots et al.
patent: 5320967 (1994-06-01), Avallone et al.
patent: 5389548 (1995-02-01), Hoots et al.
patent: 5411889 (1995-05-01), Hoots et al.
patent: 5413719 (1995-05-01), Sivakumar et al.
patent: 5702684 (1997-12-01), McCoy et al.

Affiliated with

Also associated with

Rating

Method of using fluorescent tracers to monitor chlorine dioxide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of using fluorescent tracers to monitor chlorine dioxide , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of using fluorescent tracers to monitor chlorine dioxide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1867906