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5629444 Acrylonitrile recovery process
PatentsALERT slurry mixture is ground and heated up in order to evaporate any remaining water and solvent from the slurry. The grinding step grinds the ink and any foreign material to create an ink emulsion characterized as having particles smaller than or equal to the size of the original virgin ink from which the waste ink is derived. The evaporation step may be performed either before and during the grinding step, or only during the grinding step.
5628931 PROCESS FOR THE PREPARATION OF HYDROGEN AND CARBON MONOXIDE CONTAINING MIXTURES Lednor Peter; Senden Mathijs M G; Van Der Zwet Gerardus P Amsterdam, NETHERLANDS assigned to Shell Oil Company A process for the preparation of a gaseous mixture containing hydrogen and carbon monoxide by autothermal reforming, comprising (i) partial oxidation of a gaseous hydrocarbon feed in a partial oxidation zone, (ii) passing the effluent of the partial oxidation zone to a reforming zone; and (iii) reforming in the presence of a reforming catalyst in the reforming zone to form a reformed product stream, wherein the partial oxidation is carried out at a H2CIC molar feed ratio of less than 0.2, and, preferably reformed product stream has a temperature in the range from 1000” to I35O”C, or wherein the reformed product stream has a temperature in the range from 1100” to 13OO”C, and, preferably the partial oxidation is carried out at a H20/C molar feed ratio of less than 0.5.
5629045 BIODEGRADABLE NOSIOGENIC AGENTS FOR CONTROL OF NON-VERTEBRATE PESTS Rockville, Veech Richard L assigned to Veech Richard L
MD, UNITED
STATES
Fouling of marine structures such as boats by shell bearing sea animals which attach themselves to such structures, such as barnacles, is inhibited by coatings containing lipid soluble, non-toxic, biodegradable substances which prevent the animals from sitting down on the structures. These substances attack the nervous system of the barnacle, neutralize the glue extruded by the barnacle, and otherwise prevent the barnacles from attaching themselves to surfaces immersed in the aqueous marine environment while being benign to the environment. A preferred inhibitor is pepper containing capsaicin. The inhibitor is incorporated into standard marine paints, impregnants, varnishes and the like.
5629426 CARBONATE-MEDIATED HYDROGEN PEROXIDE OXIDATIONS OF 4-HYDROXY-2,2,6,6_TETRAMETHYLPIP ERIDINE Pastor Stephen; Smith Andrea R; Bessonen Kurt Danbury, CT,UNITED STATES assigned to Ciba-Geigy Corporation An environmentally friendly process is described for preparation t h e 0 f 4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl by the carbonate-mediated hydrogen peroxide oxidation of 4-hydroxy-2,2,6,6_tetramethylpiperidine.
5628968 APPARATUS FOR PURIFYING POLLUTANT-CONTAINING WASTE AIR FROM INDUSTRIAL PLANTS BY REGENERATIVE AFTERBURNING
5629444 ACRYLONITRILE RECOVERY PROCESS
Hug Joachim; Katefidis Apostolus Sindelfingen, GERMANY assigned to Eisenmann Maschinenbau KG
Gibson James S; Rinker Jeffrey E; Wachtendorf Paul T; Godbole Sanjay Lima, OH, UNITED STATES assigned to The Standard Oil Company
An apparatus for purifying pollutant-containing waste or exhaust air from industrial plants by means of regenerative afterburning includes a heat exchanger in the form of a heat exchanger fill. The material for the heat exchanger fill is a sponge-like foamed ceramic material having open pores. In accordance with another embodiment, the material of the heat exchanger fill may be constituted by ceramic grate plates or grate bodies.
A process for the recovery of acrylonitrile or methacrylonitrile obtained from the reactor effluent of an ammoxidation reaction of propylene or isobutylene comprising passing the reactor effluent through an absorber column, a first decanter, recovery column, a second decanter and stripper column wherein the improvement comprises maintaining inside temperature of the first and second decanter at between about 32” F. to 75” F.
J. Cleaner Prod.,
1997, Volume
5, Number
3
253
5628931 PROCESS FOR THE PREPARATION OF HYDROGEN AND CARBON MONOXIDE CONTAINING MIXTURES Lednor Peter; Senden Mathijs M G; Van Der Zwet Gerardus P Amsterdam, NETHERLANDS assigned to Shell Oil Company A process for the preparation of a gaseous mixture containing hydrogen and carbon monoxide by autothermal reforming, comprising (i) partial oxidation of a gaseous hydrocarbon feed in a partial oxidation zone, (ii) passing the effluent of the partial oxidation zone to a reforming zone; and (iii) reforming in the presence of a reforming catalyst in the reforming zone to form a reformed product stream, wherein the partial oxidation is carried out at a H2CIC molar feed ratio of less than 0.2, and, preferably reformed product stream has a temperature in the range from 1000” to I35O”C, or wherein the reformed product stream has a temperature in the range from 1100” to 13OO”C, and, preferably the partial oxidation is carried out at a H20/C molar feed ratio of less than 0.5.
5629045 BIODEGRADABLE NOSIOGENIC AGENTS FOR CONTROL OF NON-VERTEBRATE PESTS Rockville, Veech Richard L assigned to Veech Richard L
MD, UNITED
STATES
Fouling of marine structures such as boats by shell bearing sea animals which attach themselves to such structures, such as barnacles, is inhibited by coatings containing lipid soluble, non-toxic, biodegradable substances which prevent the animals from sitting down on the structures. These substances attack the nervous system of the barnacle, neutralize the glue extruded by the barnacle, and otherwise prevent the barnacles from attaching themselves to surfaces immersed in the aqueous marine environment while being benign to the environment. A preferred inhibitor is pepper containing capsaicin. The inhibitor is incorporated into standard marine paints, impregnants, varnishes and the like.
5629426 CARBONATE-MEDIATED HYDROGEN PEROXIDE OXIDATIONS OF 4-HYDROXY-2,2,6,6_TETRAMETHYLPIP ERIDINE Pastor Stephen; Smith Andrea R; Bessonen Kurt Danbury, CT,UNITED STATES assigned to Ciba-Geigy Corporation An environmentally friendly process is described for preparation t h e 0 f 4-hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl by the carbonate-mediated hydrogen peroxide oxidation of 4-hydroxy-2,2,6,6_tetramethylpiperidine.
5628968 APPARATUS FOR PURIFYING POLLUTANT-CONTAINING WASTE AIR FROM INDUSTRIAL PLANTS BY REGENERATIVE AFTERBURNING
5629444 ACRYLONITRILE RECOVERY PROCESS
Hug Joachim; Katefidis Apostolus Sindelfingen, GERMANY assigned to Eisenmann Maschinenbau KG
Gibson James S; Rinker Jeffrey E; Wachtendorf Paul T; Godbole Sanjay Lima, OH, UNITED STATES assigned to The Standard Oil Company
An apparatus for purifying pollutant-containing waste or exhaust air from industrial plants by means of regenerative afterburning includes a heat exchanger in the form of a heat exchanger fill. The material for the heat exchanger fill is a sponge-like foamed ceramic material having open pores. In accordance with another embodiment, the material of the heat exchanger fill may be constituted by ceramic grate plates or grate bodies.
A process for the recovery of acrylonitrile or methacrylonitrile obtained from the reactor effluent of an ammoxidation reaction of propylene or isobutylene comprising passing the reactor effluent through an absorber column, a first decanter, recovery column, a second decanter and stripper column wherein the improvement comprises maintaining inside temperature of the first and second decanter at between about 32” F. to 75” F.
J. Cleaner Prod.,
1997, Volume
5, Number
3
253