Abstract:
The invention relates to carbon aerogels with particle sizes less than 1 µm. The carbon aerogels are prepared by (A) reating a mono- and/or polyhydroxybenzene, an aldehyde and a catalyst in a reactor at a reaction temperature T in the range from 75 - 200°C at a pressure of 80 - 2400 kPa, (B) then spraying the reaction mixture from process step (A) into an acid, (C) drying the resulting product from process step (B) and (D) carbonizing it. The carbon aerogels according to the invention can be used as filler, reinforcing filler, UV stabilizer, electrode material, sound absorbents, thermal insulating material, catalyst, catalyst support, conductivity additive, absorbent for gas and/or liquid preparation or pigment.
Abstract:
The invention relates to lamp blacks having a DBP value of less than 100 ml/100g. The invention also relates to a method for producing said lamp black, wherein lamp black is mechanically size-reduced in a rotary ball mill. The lamp blacks according to the invention can be used in carbon black dispersions, paint systems, printing inks, plastic mixtures and rubber mixtures.
Abstract:
The invention relates to carbon aerogels with particle sizes less than 1µm. The carbon aerogels are prepared by (A) reating a mono- and/or polyhydroxybenzene, an aldehyde and a catalyst in a reactor at a reaction temperature T in the range from 75 - 200°C at a pressure of 80 - 2400 kPa, (B) then spraying the reaction mixture from process step (A) into an acid, (C) dry-ing the resulting product from process step (B) and (D) carbonizing it. The carbon aerogels according to the invention can be used as filler, reinforcing filler, UV stabilizer, electrode material, sound absorbents, thermal insulating material, catalyst, catalyst sup-port, conductivity additive, absorbent for gas and/or liquid preparation or pigment.
Abstract:
The invention relates to carbon aerogels with particle sizes less than 1 µm. The carbon aerogels are prepared by (A) reating a mono- and/or polyhydroxybenzene, an aldehyde and a catalyst in a reactor at a reaction temperature T in the range from 75 - 200°C at a pressure of 80 - 2400 kPa, (B) then spraying the reaction mixture from process step (A) into an acid, (C) drying the resulting product from process step (B) and (D) carbonizing it. The carbon aerogels according to the invention can be used as filler, reinforcing filler, UV stabilizer, electrode material, sound absorbents, thermal insulating material, catalyst, catalyst support, conductivity additive, absorbent for gas and/or liquid preparation or pigment.
Abstract:
Process for the production of furnace black by producing a stream of hot combustion gases in a combustion chamber, feeding the hot combustion gases along a flow axis from the combustion chamber through a reactor narrow point into a reaction zone, mixing carbon black raw material into the flow of the combustion gases in front of, inside or behind the reactor narrow point and stopping carbon black formation downstream in the reaction zone by spraying in water, steam being jetted in axially through the gas burner and optionally at the radial oil nozzles and beaded carbon black being introduced before and/or after the reactor narrow point.
Abstract:
La invención se refiere a aerogeles de carbono con tamaños de partícula menores que 1 µm.Los aerogeles de carbono se preparan con los siguientes pasos de: (A) hacer reaccionar un mono- y/o polihidroxibenceno, un aldehído y un catalizador en un reactor a una temperatura de reacción T en el rango de 75 - 200°C a una presión de 80 - 2400 kPa, (B) luego rociar la mezcla de reacción del paso (A) del proceso dentro de un ácido, (C) secar el producto resultante del paso (B) del proceso y (D) carbonizarlo. Los aerogeles de carbono de la invención se pueden usar como un relleno, relleno de refuerzo, estabilizador de UV, material de electrodos, un absorbente de sonido, material aislante térmico, catalizador, soporte de catalizador, aditivo de conductividad, absorbente para formulaciones gaseosas y/o líquidas o un pigmento.