| Patent Number |
Title Of Patent |
Date Issued |
| RE31363 |
Method for reducing the nitrogen content of shale oil with a selective solvent comprising an org |
August 30, 1983 |
| A method is disclosed for reducing the nitrogen content of shale oil by selectivity removing therefrom nitrogen-containing compounds. The nitrogen content of shale oil is reduced by contacting the shale oil with a sufficient amount of a solvent which is selective toward the nitrogen- |
| 5344902 |
Polymerization with initiator and quaternary ammonium salt |
September 6, 1994 |
| An improved polymerization process wherein starting material such as monomer, a mixture of monomers, a partially polymerized product, or a mixture of fully polymerized product and monomer or monomer mixture is reacted with an initiator such as an organic peroxide, hydroperoxide or pe |
| 5299530 |
Submergible fish cage |
April 5, 1994 |
| A submergible fish cage comprising: a float; a fish cage; at least one (1) anchor weight; and at least one (1) cable, one end of the cable attached to the float element, a middle portion of the cable attached to the fish cage, the bottom end of the cable attached to the anchor element, t |
| 4995897 |
Method of making inorganically crosslinked layered compounds |
February 26, 1991 |
| The instant invention relates to a method for converting phosphorus containing polymers from a two dimensional, layered structure into a three dimensional structure by crosslinking such layers. The method and the resulting crosslinked polymers may be used to encapsulate active materials |
| 4983564 |
Method of making crosslinked layered compounds |
January 8, 1991 |
| The instant invention relates to a method for converting phosphorus containing polymers from a two dimensional layered structure into a three dimensional structure by crosslinking such layers. The method and the resulting crosslinked polymers may be used to encapsulate active materials |
| 4980332 |
Method of making inorganically crosslinked layered compounds |
December 25, 1990 |
| The instant invention relates to a method for converting phosphorus containing polymers from a two dimensional, layered structure into a three dimensional structure by crosslinking such layers. The method and the resulting crosslinked polymers may be used to encapsulate active materials |
| 4853358 |
Method of making inorganically crosslinked layered compounds |
August 1, 1989 |
| The instant invention relates to a method for converting phosphorus containing polymers from a two dimensional, layered structure into a three dimensional structure by crosslinking such layers. The method and the resulting crosslinked polymers may be used to encapsulate active materials |
| 4759971 |
Multilayered structure |
July 26, 1988 |
| This invention provides a multilayered structure comprising a substrate layer secured to a layer comprising a composite of a polymer and a particulate, layered compound selected from the group consisting of compounds represented by the general formula M(O.sub.3 ZO.sub.x R).sub.n wher |
| 4721738 |
Polymeric compositions including microwave energy sensitizing additives |
January 26, 1988 |
| A composition of matter including a polymer sensitized to the heating effects of microwave energy which comprises said polymer and a microwave sensitizing amount of a particulate, layered compound comprising a tetravalent atom and a pentavalent atom, selected from the group consistin |
| 4668286 |
Process for making zero valent titanium from an alkali metal fluotitanate |
May 26, 1987 |
| The instant invention relates to a continuous, countercurrent process for reducing an alakli metal fluotitanate salt, e.g. Na.sub.2 TiF.sub.6, comprising +4 valent titanium, to zero valent titanium, in a two-step reduction process, wherein said reduction process is carried out in an |
| 4655825 |
Metal powder and sponge and processes for the production thereof |
April 7, 1987 |
| Passified Zinc Soluble Metal-Based Metal particles having a controlled particle size distribution suitable for metallurgy usage without additional particle size reduction and process for making the same. Such metal particles are substantially free of halides, hydrogen, oxygen, nitrog |
| 4625056 |
Process for producing benzene carboxylic acids from aromatic material utilizing an aliphatic org |
November 25, 1986 |
| This invention relates to a method of producing benzene carboxylic acids from an aromatic material, especially coal, by the oxidation of the aromatic material in an aqueous alkaline mixture containing an aliphatic organic acid promoter agent with a source of gaseous oxygen. Use of the |
| 4595413 |
Group IVb transition metal based metal and processes for the production thereof |
June 17, 1986 |
| Passified Group IVb transition metal-based metal particles having a controlled particle size distribution suitable for metallurgy usage without additional particle size reduction and process for making the same. Such metal particles are substantially free of halides, hydrogen, oxygen |
| 4554144 |
Removal of magnesium and/or aluminum values from impure aqueous phosphoric acid |
November 19, 1985 |
| Magnesium and aluminum impurities are removed from aqueous phosphoric acid by treatment with a fluorine material and an alkali metal containing material in such a manner that the atomic ratio of fluorine to aluminum is adjusted so that it is greater than about 2 and the alkali metal plus |
| 4530764 |
Densification of phosphatic wastes and phosphoric acid slimes and solvent recovery |
July 23, 1985 |
| Phosphatic wastes produced during the mining and beneficiation of phosphate ore are concentrated by treatment in a crossflow filter under conditions which prevent the formation of a filter cake on the filtering surface. Slimes having an initial concentration of suspended solids, usually |
| 4528169 |
Process to abate geothermal hydrogen sulfide |
July 9, 1985 |
| A process for removing hydrogen sulfide from geothermal steam and from vent streams, or concentrated portions produced by a hydrogen sulfide separation process, includes the steps of introducing an oxygen-containing gas, such as air into the steam, or vent stream, and thereafter contacti |
| 4515756 |
Process for extracting tungsten or molybdenum from solution |
May 7, 1985 |
| A process for the recovery of molybdenum and/or tungsten from a solution which comprises the steps of passing said solution through a packed column containing an adsorbent; adsorbing tungsten and/or molybdenum on said adsorbent; passing a solution depleted in tungsten and/or molybdenum f |
| 4513200 |
Fiber optic movement measuring sensor |
April 23, 1985 |
| A sensor and system for measuring movement between two points includes a plurality of members having bearing surfaces thereon with links pivotally connecting the members in a manner which causes the plurality of members to move into alignment along the direction of movement to be measure |
| 4505884 |
Process for producing HF from impure phosphoric acids |
March 19, 1985 |
| Substantially calcium-free fluoroaluminum phosphate precipitate (which also contains iron) can be produced by the aging of wet process phosphoric acid containing iron, fluorine and aluminum, preferably phosphoric acid analyzing in the range of about 15%-45 weight percent P.sub.2 O.sub.5, |
| 4495987 |
Tube and tube sheet assembly |
January 29, 1985 |
| A tube and tube sheet assembly for a heat exchange device includes a plurality of heat exchanger tubes extending through a first and second tube sheet to provide a fluid-type passageway therebetween to enable a cooling fluid to be passed between the first and second tube sheets to re |
| 4470847 |
Process for making titanium, zirconium and hafnium-based metal particles for powder metallurgy |
September 11, 1984 |
| A process to produce passified Group IVb transition metal based metal particles having a controlled particle size distribution is disclosed which produces particles suitable for metallurgy usage without additional particle size reduction. Such particles are also substantially free of |
| 4468248 |
Process for making titanium metal from titanium ore |
August 28, 1984 |
| In a process for the reduction of titanium salt comprising a halide of titanium to titanium metal by contacting said titanium salt in the molten state with a molten alloy and zinc to form a solution of titanium metal in zinc the improvement which comprises the step of:(a) contacting said |
| 4462495 |
Process and apparatus for the separation of particles into three fractions of similar compositio |
July 31, 1984 |
| A process is disclosed for the separation of a mixture of particles containing differing concentrations of a selected component into three fractions of similar concentration of the selected component. The process comprises conditioning the mixture of particles with a hydrophobic or h |
| 4448249 |
Method of in situ oil shale retort ignition with oxygen control |
May 15, 1984 |
| A method for recovering liquid and gaseous products from an in situ oil shale retort containing a fragmented permeable mass of formation particles containing oil shale is provided. A hot ignition gas comprising oxygen at a first selected concentration is introduced into the fragmented ma |
| 4444256 |
Method for inhibiting sloughing of unfragmented formation in an in situ oil shale retort |
April 24, 1984 |
| A method for igniting an in situ oil shale retort containing a fragmented permeable mass of formation particles containing oil shale is provided. A void space is in the retort between the top surface of the fragmented mass and the top boundary of overlying unfragmented formation. A hot i |
| 4438976 |
Method of repair of short circuits for in situ leaching |
March 27, 1984 |
| In an acidic in situ leaching system, a short circuit passage through a subterranean formation between a fracture associated with an injection well and a fracture associated with a production well can be plugged by introducing a non-acidic liquid for displacing acidic leach liquid from |
| 4436899 |
Layered organophosphorus inorganic polymers |
March 13, 1984 |
| A process for the production of phosphorus-containing organo substituted inorganic polymers comprises reacting at least one organophosphorous or organophosphoric acid compound of the formulawherein n is 1 or 2 and R is an organo group covalently coupled to phosphorus with at least one te |
| 4429111 |
Layered organophosphorus inorganic polymers containing mixed functional groups |
January 31, 1984 |
| Layered solid inorganic polymers having at least one organo group anchored to a surface of the polymer, and which can be useful in catalysis, lubrication, ion-exchange, chromatography and absorption processes, can be made by reacting at least one tetravalent metal (e.g., zirconium, ceriu |
| 4424121 |
Selective removal of nitrogen-containing compounds from hydrocarbon mixtures |
January 3, 1984 |
| A method is disclosed for reducing the nitrogen content of hydrocarbon liquids. The method comprises contacting the hydrocarbon liquid with a solid metal salt capable of selectively extracting nitrogen-containing compounds from the hydrocarbon liquid to thereby form a nitrogen-rich s |
| 4423814 |
Separation or concentration of magnesium-bearing minerals by induced fluorescence |
January 3, 1984 |
| A method for the separation of magnesium-bearing ore particles containing an exposed magnesian-rich mineral on the surface from the lean ore particles containing a lesser surface area of the exposed magnesian mineral which comprises conditioning the ore with a coupling agent of hydro |
| 4420466 |
Process for producing phosphorus pentoxide |
December 13, 1983 |
| A process for producing phosphorus pentoxide from phosphate ore includes the mixing and formulation of a feed mixture of phosphate ore with lime and solid carbonaceous material in amounts to produce a feed mixture having a CaO/SiO.sub.2 mole ratio greater than about 8.0. This mixture is |
| 4415413 |
Method of concentrating alkali metal hydroxide in a cascade of hybrid cells |
November 15, 1983 |
| Process for the simultaneous production of alkali metal hydroxide and electricl energy. A plurality of hybrid cells (1) are operated in series with an aqueous solution of alkali metal hydroxide introduced as anolyte into an anode compartment of a first hybrid cell (6) at one end of the |
| 4401618 |
Particle-induced thermonuclear fusion |
August 30, 1983 |
| A nuclear fusion process for igniting a nuclear fusion pellet in a manner similar to that proposed for laser beams uses, an array of pulsed high energy combined particle beams focused to bombard the pellet for isentropically compressing it to a Fermi-degenerate state by thermal blow- |
| 4398769 |
Method for fragmenting underground formations by hydraulic pressure |
August 16, 1983 |
| An in situ leaching or solution mining process is conducted in a subterranean cavity in communication with a well bore. The subterranean cavity is gradually enlarged by inducing spallation of formation particles and/or collapse of the roof into the cavity by repeatedly cycling the hy |
| 4397826 |
Method of producing phosphorus pentoxide in a kiln with reduced carbon burnout |
August 9, 1983 |
| A process for producing phosphorus pentoxide from phosphate ore includes the steps of mixing phosphate ore containing silica with solid carbonaceous material and a silica fluxing agent to form a feed mixture and thereafter forming the feed mixture into pellets. Alternatively, pellets |
| 4396556 |
Process of preparing organophosphorus compounds by phase transfer catalysis |
August 2, 1983 |
| Novel organic tertiary phoshine oxides and organic phoshonic acid esters, for example, bidentate organophosphorus actinide extractants, such as the carbamoylmethylphosphonates (CMP's) can be prepared (for example, in 90% or better yield and purity) by a process involving phase transfer |
| 4395631 |
High density ion source |
July 26, 1983 |
| A source for a high density electrically neutral beam of combined positive and negative particles suitable for bombardment and heating of a pellet of nuclear fusion material to fusion temperature. A source mounted in a housing with a spherical substrate having positive ion emitter materi |
| 4390365 |
Process for making titanium metal from titanium ore |
June 28, 1983 |
| The instant invention relates to a process for the preparation of titanium metal from an ore comprising titanium oxides which process comprises the steps of fluorinating the ore to convert the titanium oxides to titanium fluorides and then reducing the titanium fluorides to the metal. Su |
| 4389384 |
Process for reducing phosphate ore |
June 21, 1983 |
| A process for producing phosphorus pentoxide from phosphorus ore includes formation of a feed with a phosphate ore, silica and solid carbonaceous material in amounts to produce a feed mixture having a CaO/SiO.sub.2 mole ratio of less than about 0.5. The feed mixture is formed into agglom |
| 4386013 |
Hydroformylation process utilizing novel catalyst |
May 31, 1983 |
| The instant invention relates to a novel hydroformylation catalyst comprising a composite of rhodium metal or a rhodium metal compound and a compound selected from the group consisting of compounds represented by the general formulawherein M comprises a tetravalent metal, Z comprises a p |
| 4384981 |
Hydrogenation process utilizing novel catalyst |
May 24, 1983 |
| The instant invention relates to a novel hydrogenation catalyst comprising a composite of a Group VIII metal or Group VIII metal compound and a compound selected from the group consisting of compounds represented by the general formulawherein M comprises a tetravalent metal, Z comprises |
| 4384931 |
Method for the electrolytic production of hydrogen peroxide |
May 24, 1983 |
| A method and apparatus for producing hydrogen peroxide in caustic solution utilizing an electrolytic cell having two electrolytes, one acidic, one basic, separated by a membrane permeable to positive ions. Electrolysis of oxygen which diffuses through a gas-diffusion cathode forms peroxi |
| 4383980 |
Process for extracting tungsten and molybdenum values from solution |
May 17, 1983 |
| The instant invention relates to a process for removing tungsten, and/or molybdenum generally, as the tungstate and/or the molybdate anion, from aqueous solutions, e.g. brines by contacting such solutions with a high-surface area oxide selected from the group consisting of manganese |
| 4383846 |
Stabilization of liquid fertilizer compositions |
May 17, 1983 |
| A process for inhibiting the growth of insoluble magnesium-containing solids in liquid fertilizer compositions, prepared from the ammoniation of wet process phosphoric acids, comprises the addition of surfactant compounds to the fertilizer. |
| 4379776 |
Process for reducing aluminum and fluorine in phosphoric acids |
April 12, 1983 |
| Aluminum fluorophosphate can be produced by the aging of phosphoric acid containing fluorine and aluminum, preferably phosphoric acid analyzing in the range of about 15-45 weight percent P.sub.2 O.sub.5, 2-4% Al.sub.2 O.sub.3 and 1-2% fluorine. One process involves digestion of phosphate |
| 4377560 |
Process for producing low aluminum content phosphoric acid from high aluminum matrix |
March 22, 1983 |
| A process for producing low aluminum content phosphoric acid from high aluminum matrix comprises digesting the matrix in phosphoric acid; adding a flocculant to consolidate gelatinous or fine undigested solids; separating the flocculated solids from the mother liquid comprising monoc |
| 4375553 |
Process for producing benzene carboxylic acid salts from aromatic materials |
March 1, 1983 |
| This invention relates to a method of producing an aqueous solution which comprises soluble benzene carboxylic acid salts which is substantially free of soluble humic acid salts. A first aqueous solution (22) which comprises soluble humic acid salts and soluble benzene carboxylic acid |
| 4375402 |
Pyrolysis process |
March 1, 1983 |
| In a process for recovery of values contained in solid carbonaceous material, the solid carbonaceous material is comminuted (10) and then subjected to pyrolysis, in the presence of a solid particulate source of heat in a pyrolysis zone, to form a pyrolysis product stream (24). The py |
| 4374242 |
Layered organoarsenous inorganic polymers |
February 15, 1983 |
| Layered organoarsenuous inorganic polymers are formed by reacting an organoarsenic acid with at least one tetravalent ion by reflux of the organoarsenic acid and the tetravalent ion in a liquid medium. There is formed a polymer in which the tetravalent metal has six coordinated bonds. |
| 4374106 |
Process for reducing the hydrogen sulfide content in geothermal steam |
February 15, 1983 |
| A process for removing hydrogen sulfide from geothermal steam utilizes iron oxide supported by a carrier resistant to deterioration by the geothermal steam. The process includes the addition of an oxygen-containing gas to the geothermal steam before contacting the steam with the iron oxi |
