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| Number | Title | Issue Date |
| 7294314 | Heat exchangers with novel ball joints and assemblies and processes using such heat exchangers What is disclosed herein deals with low to medium pressure, high temperature, all ceramic, air-to-air, indirect heat exchangers, novel ball joints, high load-bearing ceramic tube sheets, and tube seal extenders for ceramic tubes that are useful in such heat exchange... | 11/13/2007 |
| 6994117 | Piping elbow liners Liners useful as piping elbow liners comprising a body liner, a tangential inlet liner, and a tangential outlet liner. The tangential inlet liner and the tangential outlet liner can be removably inserted into a cavity in the body liner. The body liner can comprise t... | 02/07/2006 |
| 6926877 | Process and apparatus for producing carbon blacks The present invention provides processes for introducing a fluid stream into a carbon black reactor and for producing carbon black. According to the present invention a fluid stream comprising an oxidant; nitrogen, hydrogen a hydrocarbonaceous material or mixtures t... | 08/09/2005 |
| 6485693 | Apparatus for producing carbon blacks A process for producing carbon black comprising reacting a reaction stream formed by a prior carbon black forming process with an oxidant and a carbon black yielding feedstock to produce carbon black and cooling, separating and recovering the carbon black... | 11/26/2002 |
| 5989512 | Method and device for the pyrolytic decomposition of hydrocarbons In a method for the production of carbon black and hydrogen by means of pyrolysis of hydrocarbons with a plasma torch (3) in a reaction chamber the pressure in the reaction chamber (1), the feed rate for the hydrogen plasma gas and hydrocarbons and the an... | 11/23/1999 |
| 5891414 | Method for producing carbon black The present invention relates to a carbon black producing method. More particularly, the present invention relates to a carbon black producing method using an oil furnace, wherein the cooling medium for stopping the carbon black producing reaction is gas.... | 04/06/1999 |
| 5651945 | Carbon black reactor and method of producing carbon black A carbon black reactor having a combustion chamber, a mixing chamber and a reaction chamber positioned along a longitudinal axis of the reactor. The chambers communicate with each other so as to provide a flow path for the hot combustion gases as the comb... | 07/29/1997 |
| 5593644 | Apparatus for producing improved carbon blacks A new process and apparatus for producing carbon black is provided and unique reactor with separate carbon black forming reaction zones is described. The process utilizes such a reactor is to give unique carbon blacks which give rise to low hysteresis los... | 01/14/1997 |
| 5320820 | Carbon black for tire tread rubber There is disclosed carbon black for a tire tread rubber which has a nitrogen adsorption specific surface area (N2 SA) of 60 to 160 m2 /g and a dibutyl phthalate absorption (DBP) of 90 to 150 ml/100 g which belong to the respective re... | 06/14/1994 |
| 5264199 | Process for producing carbon black A process for producing carbon black by utilizing a reactor comprising a first gradually constricted reaction zone in which a mixture of a fuel and an oxygen-containing gas, is burned, a second gradually constricted reaction zone having a throat in which ... | 11/23/1993 |
| 5252297 | Process for producing carbon black and apparatus therefor An apparatus for producing carbon black comprises a reaction chamber which consists of a tapered throat and a downstream extension of the throat having the same diameter as that of the narrowest portion of the throat and provided with a plurality of ribs ... | 10/12/1993 |
| 5190739 | Production of carbon blacks A process for preparing carbon blacks having lower-than-normal structure at a given surface area, and lower-than-normal surface area at a given overall combustion level. The process is carried-out by adding auxiliary hydrocarbons, which is hydrogen or any... | 03/02/1993 |
| 5069892 | Carbon black for tire tread The present invention discloses a carbon black having an N2 SA of 75 to 105 m2 /g and a compressive DBP absorption of at least 110 ml/100 g and, at the same time, having the following selective characteristic values: true specific gr... | 12/03/1991 |
| 5009854 | Axial reactor with coaxial oil injection An axial flow carbon black reactor for producing carbon black particles having a relatively narrow particle size distribution. Feedstock oil is introduced into the reactor by a spray nozzle located coaxial with the longitudinal center line of the reactor.... | 04/23/1991 |
| 4988572 | Coating composition A coating composition for a plastics substrate such as a polyester film, comprises a polymeric amine, a polyepoxyresin and an etchant, and optionally includes a vinyl polymer. The composition is of utility as a priming medium in the production of photogra... | 01/29/1991 |
| 4976945 | Process for producing carbon black A process for producing carbon black by thermally decomposing a hydrocarbon starting material in a production furnace by introducing the starting material to a high temperature zone heated by a high temperature combustion gas formed by burning a fuel and ... | 12/11/1990 |
| 4970059 | Method of producing furnace carbon black A tubular furnace as a reactor for producing carbon black is disclosed having a constriction in at least the area of the spray device for the carbon black starting material which is oriented along the reactor axis. A combination chamber for generating the... | 11/13/1990 |
| 4879104 | Process for producing carbon black Disclosed is a process for producing carbon blacks which for a given surface area are characterized by having lower tinting strength and higher structure.... | 11/07/1989 |
| 4826669 | Method for carbon black production High structure carbon black is produced in an oil furnace reactor characterized by abrupt expansions in the reaction flow passage following the reactor throat.... | 05/02/1989 |
| 4822588 | Process for producing carbon black A carbon black reactor is characterized by a converging zone, a throat, a first reaction zone and a second reaction zone serially connected. Oil can be injected both upstream and downstream of the throat. Annular walls connect the throat with the first re... | 04/18/1989 |
| 4808395 | High-quality coloring carbon black and process for its production High-quality coloring carbon black having a specific surface area (SBET), an area average diameter (Da) and a pore volume (AVHg) which make both the roughness factor (RF) and aggregate factor (AF) as calculated by the foll... | 02/28/1989 |
| 4729885 | High mixing reactor process The moving of adjacent axial stream at sufficiently different speeds to create turbulence and rapid mixing of feedstock and hot gases in a carbon black reactor is utilized to provide a high surface area carbon black.... | 03/08/1988 |
| 4664901 | Process for producing carbon black An axial flow carbon black reactor can be provided with multiple expansion steps in the reactor expansion zone, tangential air entries into the steps, tangential process air entry with straightening vanes in the converging zone to provide axial reactor fl... | 05/12/1987 |
| 4645657 | Production of carbon black This disclosure relates to an improved furnace process for producing carbon blacks by the incomplete combustion of hydrocarbonaceous feedstock wherein the resultant blacks have decreased tinting strengths and have properties which impart improved hysteres... | 02/24/1987 |
| 4636375 | Process for producing furnace blacks of variable carbon black structure A process for the production of furnace blacks of variable carbon black structure according to the customary furnace black technology is disclosed, whereby a low ratio is adjusted between combustion air and carbon black raw material for achieving high yie... | 01/13/1987 |
| 4629615 | Counter-rotational flow in a carbon black reactor A method for producing carbon black employing a carbon black reactor which comprises a cylindrical precombustion zone; a combustion gas introduction means adapted to tangentially introduce combustion gas into the cylindrical precombustion zone; and a cylindric... | 12/16/1986 |
| 4601892 | Process for producing carbon black A generally cylindrical carbon black reactor for the production of soft carbon blacks is modified to produce a wider range of products by the installation of a choke.... | 07/22/1986 |
| 4554149 | Method for producing carbon black The tint residual of carbon black being produced in an oil furnace charging oxygen-enriched air falls as oxygen enrichment increases. An apparatus for conducting the process utilizing a low BTU fuel with external tangential combustors is also disclosed.... | 11/19/1985 |
| 4550013 | Decreasing carbon black reactor fouling rate Feed oils are injected axially into a carbon black reactor in a manner which slows buildup of deposits in the reactor. This is accomplished utilizing a nozzle configuration for injecting the feed oil into the carbon black reactor so that deposit-forming c... | 10/29/1985 |
| 4520000 | Process for production of carbon black A carbon black reactor employs the following components to produce non-uniform gas flow patterns. (a) a precombustion chamber skewed at an angle of 30-60 degrees from the reactor axis, comprising: (1) offset tangential hot gas entries (2) axial or offset multi... | 05/28/1985 |
| 4503027 | Method of producing carbon black The tint residual of produced carbon black appears to go through a maximum value at a toluene photelometer of between about 65 and about 75. A process is disclosed for maximizing the tint residual of carbon black product at constant reactor volume and com... | 03/05/1985 |
| 4501720 | Counter-rotational flow in a carbon black reactor A counter-rotational flow of combustion gas within a carbon black reactor is created by a baffle, such as an axially aligned helix-shaped fin, to promote the mixing of combustion gas and feedstock.... | 02/26/1985 |
| 4490346 | Method for producing carbon black In the production of carbon black, low BTU content gases are combusted in a compact combustion zone with near stoichiometric amounts of oxidant gases, tempered to the desired temperature and volume with a diluent gas stream which can be selected from air ... | 12/25/1984 |
| 4486398 | Feedstock nozzle for low tint residual carbon black A pipe, containing a multiplicity of spray ports spaced longitudinally along the pipe so that carbonaceous feedstock can be simultaneously ejected from the ports outwardly from the pipe, is adapted for concentric longitudinal, axial alignment in a carbon ... | 12/04/1984 |
| 4483841 | Carbon black production A carbon black reactor having tangential entry of combustion gases is provided with semicircular ramps to smoothly guide the flow of each tangentially introduced stream of combustion gases toward the reactor outlet enough to avoid turbulent impact with ot... | 11/20/1984 |
| 4447401 | Carbon black reactor with angled combustion chamber and non-aligned tangential hot gas entries for production of negative tint residual carbon black A carbon black reactor to produce non-uniform gas flow patterns utilizes (a) a precombustion chamber skewed at an angle of 30-60 degrees from the reactor axis with (1) offset tangential hot gas entries, (2) axial or offset multiple oil feed entries, (b) an optional... | 05/08/1984 |
| 4446108 | Carbon black manufacture High tint residual carbon black is produced in a vortex flow, venturi oil furnace carbon black reactor by charging the liquid feed or make hydrocarbon axially as a solid jet into a swirling mass of hot combustion gases upstream from the venturi and passin... | 05/01/1984 |
| 4431624 | Feedstock nozzle and use in carbon black process A carbon black feedstock nozzle in which a central pipe with a diverging nozzle outlet is surrounded by at least one concentric annulus having a diverging nozzle outlet with a spray angle different from that of the central pipe and with means for supplyin... | 02/14/1984 |
| 4418049 | Changing oil tubes in a carbon black reactor A carbon black reactor is equipped with multiple feedstock nozzles which revolve into axial alignment with the reactor throat.... | 11/29/1983 |
| 4402929 | Method for producing a high DPG carbon black Carbon black having a high diphenylguanidine (DPG) value and a low pH value is produced in a reactor by separating the combustion gases into a plurality of streams by means of a perforate partition. This partition has a tubular portion or a conical portio... | 09/06/1983 |
