Abstract: Provided is a process for producing a purified carbon black with a reduced content of polycyclic aromatic hydrocarbons. The process includes (a) providing a carbon black including an initial content of polycyclic aromatic hydrocarbons, (b) treating the carbon black including an initial content of polycyclic aromatic hydrocarbons with an extraction agent including carbon dioxide in a supercritical state to extract at least a portion of the polycyclic aromatic hydrocarbons from the carbon black, and (c) removing the extraction agent including the extracted polycyclic aromatic hydrocarbons from the carbon black to obtain a purified carbon black with a lower content of polycyclic aromatic hydrocarbons than the initial content of polycyclic aromatic hydrocarbons. It is furthermore provided a carbon black obtained through said production process and articles made therefrom.

Abstract: The present disclosure provides a functionalized carbon black obtained by treating an oxidized carbon black with a sulfur-containing primary or secondary amine or a salt thereof. The disclosure also relates to a process for preparing such functionalized carbon black. Furthermore, the present disclosure relates a vulcanizable rubber composition including (i) a vulcanizable rubber component, and (ii) an oxidized carbon black and (iii) a sulfur-containing primary or secondary amine or a salt thereof, or a functionalized carbon black formed from these components. The disclosure also concerns an article made from the vulcanizable rubber composition. The functionalized carbon blacks disclosed herein are particularly useful for obtaining rubber compounds with low hysteresis and enhanced abrasion resistance, e.g. for the production of energy-saving tires.

Abstract: The present disclosure relates to a device for reducing fouling in tubes of a heat exchanger and heat exchangers including such anti-fouling device(s). The anti-fouling device includes an elongated displacement body insertable in the heat exchanger tube to reduce the flow cross-sectional area in a portion of the tube. It further includes a mount connected to the elongated displacement body for attaching the device to an end of the heat exchanger tube. The mount is configured to hold the displacement body, when inserted into the tube, in a spaced relationship to the inner surface of the tube. The disclosed anti-fouling devices effectively reduces fouling in heat exchangers in a reliable manner over an extended period of time without requiring maintenance or external controls, can be provided at relatively low cost, is easily installable and can be retrofitted also to existing heat exchangers.

Abstract: The present invention relates to a furnace black having a STSA surface area of at 130 m2/g to 350 m2/g wherein the ratio of BET surface area to STSA surface area is less than 1.1 if the STSA surface area is in the range of 130 m2/g to 150 m2/g, the ratio of BET surface area to STSA surface area is less than 1.2 if the STSA surface area is greater than 150 m2/g to 180 m2g, the ratio of BET surface area to STSA surface area is less than 1.3 if the STSA surface area i greater than 180 m2/g; and the STSA surface area and the BET surface area are measured according to ASTM D 6556 and to a furnace process wherein the stoichiometric ratio of combustible material to O2 when forming a combustion gas stream is adjusted to obtain a k factor of less than 1.2 and the inert gas concentration in the reactor is increased while limiting the CO2 amount fed to the reactor. Also provided is an apparatus for conducting the process according to the present invention.

Abstract: The present invention relates to a furnace black having a STSA surface area of at 130 m2/g to 350 m2/g wherein the ratio of BET surface area to STSA surface area is less than 1.1 if the STSA surface area is in the range of 130 m2/g to 150 m2/g, the ratio of BET surface area to STSA surface area is less than 1.2 if the STSA surface area is greater than 150 m2/g to 180 m2/g, the ratio of BET surface area to STSA surface area is less than 1.3 if the STSA surface area is greater than 180 m2/g, and the STSA surface area and the BET surface area are measured according to ASTM D 6556 and to a furnace process wherein the stoichiometric ratio of combustible material to O2 when forming a combustion gas stream is adjusted to obtain a k factor of less than 1.2 and the inert gas concentration in the reactor is increased while limiting the CO2 amount fed to the reactor. Also provided is an apparatus for conducting the process according to the present invention.

Abstract: Suggested is a carbon black composition showing a narrow Aggregate Size Distribution (ASD) characterized by a ?D50/Dmode value of about 0.58 to about 0.65 and a Relative Span (D90?D10)/D50 of about 0.5 to about 0.8, which is obtainable by means of a modified furnace reactor. The composition shows superior additive performance and allows producing e.g. bus or truck tires with improved wear resistance and reinforcement.

Abstract: Suggested is a carbon black composition showing a narrow Aggregate Size Distribution (ASD) characterized by a ?D50/Dmode value of about 0.58 to about 0.65 and a Relative Span (D90-D10)/D50 of about 0.5 to about 0.8, which is obtainable by means of a modified furnace reactor. The composition shows superior additive performance and allows producing e.g. bus or truck tires with improved wear resistance and reinforcement.

Abstract: The present invention relates to a furnace black having a STSA surface area of at 130 m2/g to 350 m2/g wherein the ratio of BET surface area to STSA surface area is less than 1.1 if the STSA surface area is in the range of 130 m2/g to 150 m2/g, the ratio of BET surface area to STSA surface area is less than 1.2 if the STSA surface area is greater than 150 m2/g to 180 m2/g, the ratio of BET surface area to STSA surface area is less than 1.3 if the STSA surface area is greater than 180 m2/g, and the STSA surface area and the BET surface area are measured according to ASTM D 6556 and to a furnace process wherein the stoichiometric ratio of combustible material to O2 when forming a combustion gas stream is adjusted to obtain a k factor of less than 1.2 and the inert gas concentration in the reactor is increased while limiting the CO2 amount fed to the reactor. Also provided is an apparatus for conducting the process according to the present invention.

Abstract: Suggested is a carbon black composition showing a narrow Aggregate Size Distribution (ASD) characterized by a ?D50/Dmode value of about 0.58 to about 0.65 and a Relative Span (D90-D10)/D50 of about 0.5 to about 0.8, which is obtainable by means of a modified furnace reactor. The composition shows superior additive performance and allows producing e.g. bus or truck tires with improved wear resistance and reinforcement.

Abstract: The invention relates to a carbon black with a CTAB surface area of from 20 to 49 m2/g, with a COAN greater than 90 ml/(100 g), and with a sum of OAN and COAN greater than 235 ml/(100 g). The carbon black is produced in a furnace reactor, where from 20 to 55% by weight of the feedstock used for the carbon black are introduced radially through a nozzle within the first third of the reaction zone, and the remaining amount of the feedstock used for the carbon black is introduced through a nozzle upstream at least one further point into the reactor. The carbon black can be used in rubber mixtures.

Abstract: The invention relates to a carbon black with a CTAB surface area of from 20 to 49 m2/g, with a COAN greater than 90 ml/(100 g), and with a sum of OAN and COAN greater than 235 ml/(100 g). The carbon black is produced in a furnace reactor, where from 20 to 55% by weight of the feedstock used for the carbon black are introduced radially through a nozzle within the first third of the reaction zone, and the remaining amount of the feedstock used for the carbon black is introduced through a nozzle upstream at least one further point into the reactor. The carbon black can be used in rubber mixtures.