Patents Represented by Attorney Alexander D. Ricci
  • Patent number: 5614101
    Abstract: The present invention provides for methods for treating bottoms sludge and water-oil interphase emulsions present in a containment vessel by injecting into the sludge an effective resolving amount of an oil-based demuislfier. In a preferred embodiment, the containment vessel is a desalter containing a bottoms sludge layer, a water/brine layer, a water-oil interphase emulsion layer and a hydrocarbon layer and the demulsifier is injected through the mud wash header.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: March 25, 1997
    Assignee: BetzDearborn Inc.
    Inventors: Jennifer A. DeWalls, Mark S. Binford
  • Patent number: 5612421
    Abstract: Methods and compositions for pretreating a metal surface are provided. The methods comprise applying to the metal surface a hydrolysate of a copolymer of an unsaturated carboxylic acid or derivative thereof and a vinyltrialkoxysilane compound. Novel zinc salt hydrolysate compositions and zirconium salt hydrolysate compositions are also disclosed.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: March 18, 1997
    Assignee: BetzDearborn Inc.
    Inventors: Alan E. Goliaszewski, David W. Reichgott, Lothar S. Sander
  • Patent number: 5611911
    Abstract: A process for the inhibition of corrosion caused by naphthenic acid and sulfur compounds during the elevated temperature processing of crude oil by use of an aryl containing phosphite compound having one of the structures: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are C.sub.6 to C.sub.12 and at least one R group is an aryl radical.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: March 18, 1997
    Assignee: BetzDearborn Inc.
    Inventor: James G. Edmondson
  • Patent number: 5611939
    Abstract: Methods for inhibiting the attachment of microbes to surfaces in aqueous systems are disclosed. Copolymers of a tannin and a cationic monomer are added to aqueous systems, such as papermaking and cooling water systems, to inhibit microbial attachment to surfaces which cause slime formation problems.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: March 18, 1997
    Assignee: BetzDearborn Inc.
    Inventors: Roy Hernandez-Mena, Richard J. Sujdak, Patric L. Friend
  • Patent number: 5611869
    Abstract: The present invention provides for methods and compositions for cleaning oil and sludge from a refinery vessel and for separating the resulting emulsion formed by the cleaning composition and the oil and sludge. The cleaner composition uses an aqueous solution of an alkylphenol-formaldehyde resin alkoxylate, a poly(ethylene glycol)dialkyl ester and a solvent selected from the group consisting of a C.sub.1 to C.sub.8 alcohol, glycol, and glycol ether.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: March 18, 1997
    Assignee: BetzDearborn Inc.
    Inventor: Paul R. Hart
  • Patent number: 5607574
    Abstract: A combination of aluminum chlorohydrate and a polyamine, such as polydiallyldimethyl ammonium chloride in an aqueous solution is described which is an effective emulsion breaker for reverse (oil-in-water) emulsions. The combination is effective at elevated temperatures and in a matrix comprising mostly oil as encountered in a crude oil desalter unit.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: March 4, 1997
    Assignee: BetzDearborn Inc.
    Inventor: Paul R. Hart
  • Patent number: 5607597
    Abstract: A treatment for enhancing the activity of biocidal compounds to control the growth of microbes in an aqueous system is disclosed, which comprises adding to said compounds an effective amount of an alkylsulfosuccinate surfactant.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: March 4, 1997
    Assignee: BetzDearborn Inc.
    Inventors: J. Barry Wright, Daniel L. Michalopoulos
  • Patent number: 5601754
    Abstract: A polymer and method of controlling corrosion and the formation and deposition of scale imparting compounds in water systems is disclosed. The polymer has the general structure: ##STR1## wherein E.sup.1 comprises the repeat unit obtained after polymerization of one or more .alpha., .beta. ethylenically unsaturated monomers, selected from the group consisting of a carboxylic 3acid, lower alkyl (C.sub.1 -C.sub.6) ester or a hydroxylated lower alkyl (C.sub.1 -C.sub.6) ester of such carboxylic acid, and amide forms thereof; E.sup.2 comprises the repeat unit obtained after polymerization of one or more .alpha., .beta. ethylenically unsaturated monomer containing a sulfonic acid functionality; R.sup.1 is a hydrogen or a lower (C.sub.1 -C.sub.3) alkyl; R.sup.2 is --CH.sub.2 -- O--or --C(.dbd.O)--O--; R.sup.3 is --(--CH.sub.2 --CH(--CH.sub.2 --OH)--O--)--.sub.n ; n is an integer greater than 1; and R.sup.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: February 11, 1997
    Assignee: Betz Laboratories, Inc.
    Inventors: William S. Carey, Andrew Solov
  • Patent number: 5596130
    Abstract: Methods and compositions are provided for cleaning and inhibiting the formation of fouling deposits on jet engine components during the combustion of turbine combustion fuel oils. Methods and compositions are also provided for inhibiting the formation and emission of soot and smoke from jet engine exhaust during turbine combustion fuel oil combustion. The methods employ a derivative of (thio)phosphonic acid added to the turbine combustion fuel oil. The preferred derivative is pentaerythritol ester of polyisobutenylthiophosphonic acid.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: January 21, 1997
    Assignee: Betz Laboratories, Inc.
    Inventors: Bruce E. Wright, William L. Witzig, Alan E. Goliaszewski, William S. Carey, Jeffrey H. Peltier
  • Patent number: 5593599
    Abstract: A method for inhibiting the microbial adhesion on surfaces in contact with an aqueous system is disclosed, which comprises adding to the system a treatment comprising an alkylsulfosuccinate surfactant.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: January 14, 1997
    Assignee: BetzDearborn Inc.
    Inventors: J. Barry Wright, Daniel L. Michalopoulos
  • Patent number: 5593572
    Abstract: A method for accelerating the settling of finely divided solids in hydrocarbon fluids comprising adding to the hydrocarbon a sufficient settling amount of a hetero-atom punctuated fatty polymer. Preferably, the hydrocarbon is a fluid catalytic cracker slurry containing spent catalyst fines.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: January 14, 1997
    Assignee: BetzDearborn Inc.
    Inventor: Paul R. Hart
  • Patent number: 5594096
    Abstract: A contaminant precipitating composition and method are disclosed. The composition comprises a water soluble branched polymeric composition effective for the purpose of precipitating contaminants from an aqueous solution. The method comprises adding an amount of the composition, effective for the purpose, to the aqueous solution so as to complex, precipitate and remove contaminants from the aqueous solution.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: January 14, 1997
    Assignee: BetzDearborn Inc.
    Inventors: William S. Carey, Ellen M. Meyer, Jeffrey H. Peltier
  • Patent number: 5594084
    Abstract: A water soluble isopropenylphosphonic acid copolymer composition and method of use thereof are disclosed. The copolymer comprises repeat units (a) of the formula: ##STR1## wherein X=OH or OM, wherein M is a cation, and repeat units (b) of the formula: ##STR2## wherein R.sub.1 and R.sub.2 are independently hydrogen, C.sub.1-10 linear or branched alkyl, phenyl or alkyl substituted phenyl. The copolymers are effective in inhibiting the precipitation of scale forming salts and also act to inhibit corrosion in boiler water systems.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: January 14, 1997
    Assignee: BetzDearborn Inc.
    Inventors: Scott M. Boyette, Alan E. Goliaszewski
  • Patent number: 5575920
    Abstract: A method for simultaneously controlling the deposition of scale and the formation of corrosion in a cooling water system consisting of adding to the system a water soluble copolymer having the structure: ##STR1## wherein R.sub.1 is H or lower (C.sub.1 -C.sub.4) alkyl, F is H.sub.2 or O, M is a water soluble cation, R.sub.2 is (CH.sub.2 --CH.sub.2 --O).sub.n, ##STR2## or mixture of both, n is an integer of from 1 to about 40, R.sub.3 is H, lower (C.sub.1 -C.sub.4) alkyl or an acetate.
    Type: Grant
    Filed: September 18, 1995
    Date of Patent: November 19, 1996
    Assignee: BetzDearborn Inc.
    Inventors: Donald T. Freese, Libardo A. Perez, Keith A. Bair, Fu Chen
  • Patent number: 5575893
    Abstract: A method for conditioning the felts in a papermaking process utilizing deinked secondary fiber in the furnish by adding a felt conditioner consisting of from 5-33% of a nonionic surfactant, from 5-33% of a dispersant, or blends thereof, with the remainder water; wherein the nonionic surfactant is selected from the group consisting of ethoxylated nonylphenols having moles of ethoxylation of from 7.5 to 30 and an HLB of about 12 to 17.2 and di-alkyl phenol ethoxylates having moles of ethoxylation of from 15 to 24 and an HLB of about 13 to 15.1; and wherein the dispersant is selected from the group consisting of the sodium salt of naphthalene sulfonate formaldehyde-condensate having an average molecular weight of from about 700 to 3500, the potassium salt of polymerized alkyl naphthalene sulfonic acid having an average molecular weight of approximately 1000, or the sodium or ammonium salt of lignosulfonate. Additionally, from 1 to 5% of an alkylether hydroxypropyl sultaine enhances performance.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: November 19, 1996
    Assignee: BetzDearborn Inc.
    Inventors: Abdul Q. Khan, Kevin D. Curham, Jeffrey R. Cowart
  • Patent number: 5576056
    Abstract: Compositions and a method for inhibiting coal oxidation. Coal oxidation is inhibited by applying an aqueous solution of cationic polymer to coal surfaces which are exposed to air. The compositions are preferably applied to coal as foams.
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: November 19, 1996
    Assignee: BetzDearborn Inc.
    Inventor: Donald C. Roe
  • Patent number: 5575924
    Abstract: Disclosed are methods for reducing turbidity of aqueous systems and clarifying wastewater systems utilizing a graft copolymer having the structure: ##STR1## whereby the cationic monomer (F) is represented by ##STR2## wherein R is hydrogen or a C.sub.1 to C.sub.3 alkyl group, R.sub.1 is the salt of an ammonium cation, and the molar percentage of a:b is from about 95:5 to about 5:95, with the proviso that the sum of a and b equals 100%.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: November 19, 1996
    Assignee: BetzDearborn Inc.
    Inventors: Keith A. Bair, Elizabeth V. Bissinger, Ellen M. Meyer
  • Patent number: 5562833
    Abstract: In a paint spray booth wherein water is used to collect oversprayed paint, a process is disclosed for detackifying and coagulating oversprayed paint by the independent and concurrent addition of specific amounts of specific anions and cationic polymers to the water system.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: October 8, 1996
    Assignee: Betz Laboratories, Inc.
    Inventors: Howard B. Agree, Robert A. Iezzi
  • Patent number: 5562816
    Abstract: A Mannich reaction product of reactants selected from alkylated phenols, a polyamine and an aldehyde is employed to dissolve tar deposits in coke oven piping and transmission lines.
    Type: Grant
    Filed: August 24, 1994
    Date of Patent: October 8, 1996
    Assignee: Betz Laboratories, Inc.
    Inventor: Paul V. Roling
  • Patent number: 5562863
    Abstract: Vinyl aromatic monomer polymerization methods utilizing a composition of 2,6-di-tert-butyl-4-methylphenol and a substituted benzoquinonediimide compound are disclosed. Preferably, the composition is employed in an amount of 1 part to 10,000 parts per million parts monomer during distillation of styrene.
    Type: Grant
    Filed: July 18, 1995
    Date of Patent: October 8, 1996
    Assignee: Betz Laboratories, Inc.
    Inventor: Graciela B. Arhancet