Abstract: The present invention relates to novel two tail-two head and two tail-one head surfactants. In one embodiment, the present invention comprises a novel composition of matter having the general formula: ##STR1## wherein R1 and R2 may be the same or different and are selected from liner or branched hydrocarbon chains with carbon numbers 8 and 22;R3 is H, SO.sup.-.sub.y M.sup.+, or --O (CH2CH2O).sub.n X;R4 is SO.sup.-.sub.y M.sup.+, or --O (CH2CH2O).sub.n X;M is H, Li, Na, K, Rb or Cs;n is an integer from 2 to 50;y is 3 or 4; and,X is H or SO.sup.-.sub.y M.sup.-.Preferably, in the above composition when R3 is other than H, R3.dbd.R4.
Abstract: According to the present invention, there is provided a coated breaker chemical in which the coating comprises a blend of a neutralized sulfonated ionomer and asphalt. Preferably, the coating contains from about 1 to 20 wt. % asphalt and from 99 to 80 wt. % of the neutralized sulfonated ionomer. In a particularly preferred embodiment of the present invention, the coating contains about 7 wt. % asphalt and about 93 wt. % of the neutralized sulfonated ionomer.
Type:
Grant
Filed:
May 27, 1994
Date of Patent:
December 3, 1996
Assignee:
Exxon Research and Engineering Company
Inventors:
Vijay Swarup, Dennis G. Peiffer, Marty L. Gorbaty
Abstract: The present invention provides for enhanced bioremediation of hydrocarbon contaminated soils and waters by treating soil or water with a composition comprising of a metal chelated macrocyclic amido amines or mixtures thereof represented by the structural formula: ##STR1## where R is selected from linear or branched alkanes with 8 to 22 carbons, linear or branched alkenes with 4 to 22 carbon atoms;T.sub.1, T.sub.2 and T.sub.3 are independently selected from ethylene, trimethylene, CH.sub.2 CH.sub.2 (NHCH.sub.2 CH.sub.2).sub.x where x is an integer from 1 to 10;MaQb is a metal compound wherein M is a cation selected from cations of Fe, Co, Ni, Cu, Zn, and Mn; and,Q is an anion selected from nitrate, phosphate anions; and a and b are integers from 1 to 3 necessary to satisfy the valence requirements of M and Q.a phosphorous source, and a diluent.
Type:
Grant
Filed:
January 20, 1995
Date of Patent:
November 5, 1996
Assignee:
Exxon Research and Engineering Company
Inventors:
Ramesh Varadaraj, Stanley J. Brois, Jan Bock, Cornelius H. Brons
Abstract: The present invention provides for microporous ceramic materials having a surface area in excess of 50 m.sup.2 /gm and an open microporous cell structure wherein the micropores have a mean width of less than 20 Angstroms and wherein said microporous structure comprises a volume of greater than about 0.015 cm.sup.3 /gm of the ceramic. The invention also provides for a preceramic composite intermediate composition comprising a mixture of a ceramic precursor and finely divided particles comprising a non-silicon containing ceramic, carbon, or an inorganic compound having a decomposition temperature in excess of 400.degree. C., whose pyrolysis product in inert atmosphere or in an ammonia atmosphere at temperatures of up to less than about 1100.degree. C. gives rise to the microporous ceramics of the invention.
Type:
Grant
Filed:
May 24, 1994
Date of Patent:
October 8, 1996
Assignee:
Exxon Research and Engineering Company
Inventors:
John P. Dismukes, Jack W. Johnson, Edward W. Corcoran, Jr., Joseph Vallone
Abstract: The present invention provides for enhanced bioremediation of hydrocarbon contaminated soils and waters by treating soil or water with a surfactant or mixture of surfactants having the general formulae: ##STR1## where A=CH.sub.2, B=CH.sub.2 CH.sub.2 O, x=1-10 and y=2-20.
Type:
Grant
Filed:
October 17, 1995
Date of Patent:
October 1, 1996
Assignee:
Exxon Research and Engineering Company
Inventors:
Cornelius H. Brons, Jan Bock, Ramesh Varadaraj, Stanley J. Brois
Abstract: The present invention relates to novel adducts of cyclic carbonyl monomers with substituted olefins, which also are useful as solution viscosifiers.
Abstract: The present invention provides for enhanced bioremediation of hydrocarbon contaminated soils and waters by treating soil or water with a composition comprising a phosphorous source, a diluent and a compound or mixtures thereof represented by the structural formula: ##STR1## wherein R is a linear or branched alkane having about 8 to about 22 carbons, a linear or branched alkene having about 4 to about 22 carbon atoms; T.sub.1, T.sub.2, T.sub.3 are independently ethylene, trimethylene, or CH.sub.2 CH.sub.2 (NHCH.sub.2 CH.sub.2).sub.x, where x is an integer from 1 to 10; Q is HNO.sub.3 or H.sub.3 PO.sub.4 ; and, n is an integer from 0 to 10.
Type:
Grant
Filed:
December 13, 1994
Date of Patent:
May 7, 1996
Assignee:
Exxon Research and Engineering Company
Inventors:
Ramesh Varadaraj, Cornelius H. Brons, Jan Bock, Stanley J. Brois
Abstract: The present invention provides for enhanced bioremediation of hydrocarbon contaminated soils and waters by treating soil or water with a surfactant or mixture of surfactants having the general formulae: ##STR1## wherein A=CH.sub.2, B=CH.sub.2 CH.sub.2 O, x=1-10 and y=2-20.
Type:
Grant
Filed:
July 15, 1994
Date of Patent:
April 2, 1996
Assignee:
Exxon Research & Engineering Co.
Inventors:
Cornelius H. Brons, Jan Bock, Ramesh Varadaraj, Stanley J. Brois
Abstract: A method is provided for preparing organic hydroperoxides by oxidizing aryl alkyl hydrocarbons having a benzylic hydrogen with an oxygen containing gas using as a catalyst an oxo (hydroxo) bridged tetranuclear metal complex having a mixed metal core, one metal of the core being a divalent metal selected from Zn, Cu Fe, Co, Ni, Mn or mixtures thereof and another metal being a trivalent metal selected from In, Fe, Mn, Ga, and Al.
Type:
Grant
Filed:
March 10, 1995
Date of Patent:
April 2, 1996
Assignee:
Exxon Research and Engineering Company
Inventors:
Jeffrey E. Bond, Sergiu M. Gorun, George W. Schriver, Robert T. Stibrany, Thomas H. Vanderspurt
Abstract: The present invention provides a functionalized styrenic polymer or copolymer which contains functionalized para-alkystryene moiety having the formula: ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are independently selected from hydrogen, alkyl and primary and secondary halo alkyl, and R.sub.4 is selected from a group having the formula: ##STR2## wherein x is an integer of from 2 to about 10, y is an integer from ranging from 0 to about 20 and A is a linear hydrocarbyl group of from 2 to about 10 carbon atoms or a branched hydrocarbyl group of from 3 to about 10 carbon atoms.
Abstract: Simply stated, the present invention contemplates the use of a ceramic fiber insulation material which is impregnated with an agent capable of stiffening the blanket and reducing erosion of the insulation material under conditions of use.
Type:
Grant
Filed:
August 17, 1990
Date of Patent:
March 5, 1996
Assignee:
Exxon Research and Engineering Company
Inventors:
Arthur A. Lietz, John R. Peterson, Paul E. Schlett
Abstract: In one embodiment, the present invention relates to novel two tail--two head and two tail--one head surfactants. In one embodiment, the present invention comprises a novel composition of matter having the general formula: ##STR1## wherein R1 and R2 may be the same or different and are selected from linear or branched hydrocarbon chains with from 6 to 22 carbon atoms;R3 is H, SO.sup.13.sub.y M.sup.+, or --O(CH2CH2O).sub.n X;R4 is SO.sup.--.sub.y M.sup.+, or --O(CH2CH2O).sub.n X;M is H, Li, Na, K, Rb or Cs;n is an integer from 2 to 50;y is 3 or 4; and,X is H or SO.sup.13.sub.y M.sup.+.Preferably, in the above composition when R3 is other than H, R3=R4.
Abstract: A compacted, single phase or multiphase composite article. Particles for use in the compacted article are produced by providing a precursor compound containing at least one or at least two metals and a coordinating ligand. The compound is heated to remove the coordinating ligand therefrom and increase the surface area thereof. It may then be reacted so that at least one metal forms a metal-containing compound. The particles may be consolidated to form a compacted article, and for this purpose may be used in combination with graphite or diamonds. The metal-containing compound may be a nonmetallic compound including carbides, nitrides and carbonitrides of a refractory metal, such as tungsten. The metal-containing compound may be dispersed in a metal matrix, such as iron, nickel or cobalt. The dispersed nonmetallic compound particles are no larger than about 0.1 micron in particle size and have a volume fraction greater than about 0.15 within the metal matrix.
Type:
Grant
Filed:
March 17, 1995
Date of Patent:
February 13, 1996
Assignee:
Exxon Research and Engineering Company
Inventors:
Richard S. Polizzotti, Larry E. McCandlish, Edwin L. Kugler
Abstract: Each of a plurality of cyclones is suspended from the roof of a vessel by means of tubular extensions of their barrels. These tubular extensions are slotted lengthwise to minimize thermal stresses in the vessel head. Importantly, this hanging scheme provides a direct extension within the load path for the cyclone weight, thus supporting the cyclone in tension stresses rather than high bending stresses.
Abstract: A compacted, single phase or multiphase composite article. Particles for use in the compacted article are produced by providing a precursor compound containing at least one or at least two metals and a coordinating ligand. The compound is heated to remove the coordinating ligand therefrom and increase the surface area thereof. It may then be reacted so that at least one metal forms a metal-containing compound. The particles may be consolidated to form a compacted article, and for this purpose may be used in combination with graphite or diamonds. The metal-containing compound may be a nonmetallic compound including carbides, nitrides and carbonitrides of a refractory metal, such as tungsten. The metal-containing compound may be dispersed in a metal matrix, such as iron, nickel or cobalt. The dispersed nonmetallic compound particles are no larger than about 0.1 micron in particle size and have a volume fraction greater than about 0.15 within the metal matrix.
Type:
Grant
Filed:
September 29, 1993
Date of Patent:
August 15, 1995
Assignee:
Exxon Research and Engineering Company
Inventors:
Richard S. Polizzotti, Larry E. McCandlish, Edwin L. Kugler
Abstract: The present invention provides a mechanism device for preventing gas channeling between the sidewall and a heat exchange tube bundle located in the convection section of a horizontal tube fired heater while permitting in-situ repair of the sidewall refractory. The invention comprises a plurality of serially elongated plate members pivotably mounted on a tube and sized longitudinally to extend at a predetermined distance from the tube to the sidewall of the convection section of the heater, the number of plate members being sufficient to extend for substantially the length of the tube.
Abstract: The bioremediation of hydrocarbon contaminated soil is enhanced by applying to the soil a hydrocarbon solution of a surfactant selected from the group consisting of: (a) mixture of a sorbitan ester of a C.sub.7 to C.sub.22 monocarboxylic acid and a polyoxyalkylene adduct of a sorbitan monoester of a C.sub.7 to C.sub.22 monocarboxylic acid, the adduct having from 6 to 50 polyoxyalkylene units, (b) an alkyl glycoside wherein the alkyl group has from about 8 to about 18 carbon atoms and the glycoside is a mono or diglycoside and (c) a mixture of (a) and (b) and (c) and thereafter applying microbial nutrients to the soil in amounts sufficient to promote the growth of indigenous microorganisms.
Type:
Grant
Filed:
February 2, 1994
Date of Patent:
July 25, 1995
Assignee:
Exxon Research & Engineering Co.
Inventors:
Ramesh Varadaraj, Jan Bock, Max L. Robbins
Abstract: In one embodiment of the present invention, there is provided an improved controlled release fertilizer comprising a fertilizer coated with a neutralized, sulfonated EPDM polymer having from about 2% to about 50% crystallinity. Preferably, the coated fertilizer has a coating thickness of from about 1 to about 100 micrometers.
Abstract: Simply stated, in the process of the present invention a hydrocarbon contaminated substrate, such as a hydrocarbon contaminated soil, is separated preferably by wet-sieving, into a coarse fraction and a fines fraction. Thereafter, the coarse fraction is subjected to a floatation process to remove hydrocarbon contaminants from it and the fines fractions is treated with a hydrocarbon solvent followed by an aqueous solution of a surfactant to remove hydrocarbon contaminants from it.
Abstract: There is provided a coated agricultural substrate in which the coating comprises a blend of a neutralized sulfonated ionomer and asphalt. Preferably, the coating contains from about 1 to 20 wt. % asphalt and from 99 to 80 wt. % of the neutralized sulfonated ionomer. In a particularly preferred embodiment of the present invention, the coating contains about 7 wt. % asphalt and about 93 wt. % of the neutralized sulfonated ionomer.
Type:
Grant
Filed:
August 17, 1993
Date of Patent:
May 9, 1995
Assignee:
Exxon Research and Engineering Co.
Inventors:
Vijay Swarup, Albert J. Geiger, Evelyn N. Drake, Dennis G. Peiffer, Martin L. Gorbaty