Michael A Pikulin

7666379, Feb 23, 2010

Dec 2, 2005

11/293775

German Shekk - Bridgewater NJ, US
John P. de Neufville - Mendham NJ, US
Michael Pikulin - Bound Brook NJ, US

Voltaix, Inc. - North Branch NJ

C01B 33/10
B01D 53/04
B01D 53/68

423341, 423342, 423489, 423240 S, 423230, 423246, 423248, 95117, 95131, 95132, 95139, 95140

A process and apparatus is provided for the purification of binary halide fluid. The process and apparatus purifies the binary halide fluid by selectively removing Bronsted acid impurities and/or volatile oxygen containing impurities present in the binary halide. A regenerable adsorbent polymer is utilized to remove the Bronsted acid impurities from the binary halide fluid and a volatile oxide adsorbent having a specific adsorption capacity for the volatile oxide impurity is utilized to remove the volatile oxide from the binary halide when in gaseous form.

56931840, Dec 2, 1997

Sep 4, 1996

8/708865

Thomas P. Gandek - Trenton NJ
James C. Joseph - Yardley PA
Michael A. Pikulin - Bound Brook NJ
George Pangalos - Plainsboro NJ
Philip E. Bowden - Franklin VA

Union Camp Patent Holding, Inc. - Wilmington DE

D21C 9153

162 48

A method for reducing or eliminating the formation of salt scale upon process equipment caused by precipitation of insoluble salts during the bleaching of pulp. The pulp is subjected to a bleaching sequence which includes a plurality of pulp treatment steps, wherein at least one pulp treatment step is conducted under alkaline conditions and at least one pulp treatment step is conducted under acidic conditions. A filtrate stream which contains dissolved insoluble salts therein is thus generated, and at least a portion of the filtrate stream is combined with an alkaline stream and pulp to cause the salts to associate with the pulp, thus removing the salts from the filtrate stream to reduce or eliminate the formation of salt scale upon process equipment during the bleaching of the pulp.

51640449, Nov 17, 1992

Aug 26, 1991

7/749786

Bruce F. Griggs - Columbia SC
Thomas P. Gandek - Trenton NJ
Michael A. Pikulin - Bound Brook NJ
Allen Rosen - Lawrenceville NJ

Union Camp Patent Holding, Inc. - Wilmington DE

D21C 9153

162 57

A process for delignifying and bleaching a lignocellulosic pulp without the use of elemental chlorine by partially delignifying the pulp to a K No. of about 10 or less and a viscosity of greater than about 13 cps; and further delignifying the partially delignified pulp with an effective amount of ozone for a sufficient time to obtain a substantially delignified pulp having a K No. of about 5 or less, a viscosity of greater than about 10, and a GE brightness of at least about 50%. The substantially delignified pulp may be brightened by the addition of a bleaching agent such as chlorine dioxide or a peroxide to obtain a final product having a GE brightness of at least about 65%, preferably above 70% to as high as 90%. Because of the absence of elemental chlorine in this sequence, filtrate from all stages but the chlorine dioxide stage ( if used) can be recovered without sewering. Major environmental improvements are thus achieved.

54725720, Dec 5, 1995

Jan 15, 1992

7/821117

David E. White - Pennington NJ
Michael A. Pikulin - Bound Brook NJ
Thomas P. Gandek - Trenton NJ
William H. Friend - Savannah GA

Union Camp Patent Holding, Inc. - Wilmington DE

D21C 700
D21C 9153

162241

An apparatus and method for bleaching high consistency lignocellulosic pulp using ozone supplied in an ozone containing gas. The bleaching reactor apparatus according to the invention is a generally cylindrical vessel with a rotatable shaft having radially extending paddles arranged in a configuration to minimize axial dispersion of the pulp and maximize radial dispersion of the pulp to provide a radially dispersed plug flow of pulp through the reactor in the presence of the ozone to provide substantially uniformly bleached pulp.

54416035, Aug 15, 1995

Jul 27, 1993

8/097699

Bruce F. Griggs - Columbia SC
Thomas P. Gandek - Trenton NJ
Michael A. Pikulin - Bound Brook NJ
Allen Rosen - Lawrenceville NJ

Union Camp Patent Holding, Inc. - Princeton NJ

D21C 9153

162 57

A process for delignifying and bleaching a lignocellulosic pulp without the use of elemental chlorine by partially delignifying the pulp to a K No. of about 10 or less and a viscosity of greater than about 13 cps; and further delignifying the partially delignified pulp with an effective amount of ozone for a sufficient time to obtain a substantially delignified pulp having a K No. of about 5 or less, a viscosity of greater than about 10, and a GE brightness of at least about 50%. The substantially delignified pulp may be brightened by the addition of a bleaching agent such as chlorine dioxide or a peroxide to obtain a final product having a GE brightness of at least about 65%, preferably above 70% to as high as 90%. Because of the absence of elemental chlorine in this sequence, filtrate from all stages but the chlorine dioxide stage (if used) can be recovered without sewering. Major environmental improvements are thus achieved.

58633898, Jan 26, 1999

Mar 8, 1994

8/208063

David E. White - Pennington NJ
Michael A. Pikulin - Bound Brook NJ
William H. Friend - Savannah GA

Union Camp Patent Holding, Inc. - Wayne NJ

D21C 700
D21C 9153

162241

An apparatus for delignifying and bleaching a lignocellulosic pulp without the use of elemental chlorine. The bleaching reactor is a horizontal vessel having a central rotatable shaft which preferably contains paddles, cut and folded screw flights or a ribbon flight, to disperse and advance the pulp particles in a plug flow manner while contacting and mixing the pulp particles with a gaseous bleaching agent such as ozone for substantially uniform bleaching thereof.

52118118, May 18, 1993

Aug 26, 1991

7/749744

Bruce F. Griggs - Columbia SC
Thomas P. Gandek - Trenton NJ
Michael A. Pikulin - Bound Brook NJ
Allen Rosen - Lawrenceville NJ

Union Camp Patent Holding, Inc. - Wilmington DE

D21C 914
D21C 9147
D21C 9153
D21C 918

162 40

A process for delignifying and bleaching a lignocellulosic pulp without the use of elemental chlorine by partially delignifying the pulp to a K No. of about 10 or less and a viscosity of greater than about 13 cps; and further delignifying the partially delignified pulp with an effective amount of ozone for a sufficient time to obtain a substantially delignified pulp having a K No. of about 5 or less, a viscosity of greater than about 10, and a GE brightness of at least about 50%. The substantially delignified pulp may be brightened by the addition of a bleaching agent such as chlorine dioxide or a peroxide to obtain a final product having a GE brightness of at least about 65%, preferably above 70% to as high as 90%. Because of the absence of elemental chlorine in this sequence, filtrate from all stages but the chlorine dioxide stage (if used) can be recovered without sewering. Major environmental improvements are thus achieved.

61267813, Oct 3, 2000

Aug 1, 1991

7/739050

James Joseph - Yardley PA
Michael A. Pikulin - Bound Brook NJ
William H. Friend - Savannah GA

Union Camp Patent Holding, Inc. - Wilmington DE

D21C 1106
D21C 9153

162 29

A process for conditioning an ozone gas recycle stream in an ozone pulp bleaching process, wherein the level of carbon dioxide in the recycle stream is controlled to allow full capacity operation of the ozone generator. Carbon dioxide concentration is identified over the relevant operational ranges and maximum concentration is identified for full capacity/optimum efficiency operation. Specific methods are described for controlling carbon dioxide concentration including purging a portion of the recycle stream, counter-current scrubbing of the recycle stream with an alkaline solution and passing the recycle stream through an adsorbent material. Contaminants entering the system also may be reduced by directing the purged recycle stream, which is relatively oxygen rich, into the dewatering press where pulp consistency is increased. In this manner nitrogen surrounding the pulp is displaced by oxygen and thus, does not enter the bleaching/ozone system with the pulp.