| 摘要 |
<p>#CMT# #/CMT# Carbon black with an aggregate size distribution ratio ((d 9 0-d 1 0)/d 5 0) of = 1.1, is new. #CMT# : #/CMT# Independent claims are included for: (1) preparation of the carbon black; and (2) device for executing the above process comprising a burner and a cooling surface against which the flame is directed, where the cooling takes place through a self-constricting gap, which has a height/width ratio of 1-100 mm, where the width is related to the upper edge of the gap and is 0.5-10 mm and the flow velocity at the narrowest point of the gap is 10-200 m/s. #CMT#USE : #/CMT# The carbon black is useful: as filler, reinforcing filler, UV-stabilizer, conductivity carbon black, pigment and reduction agent; and in rubber, plastic, printing ink, inks, inkjet-inks, toners, paints, colors, paper, asphalt, concrete and other building materials (claimed). #CMT#ADVANTAGE : #/CMT# The carbon black exhibits a hue component value of greater than 0.5, hence provides more intensive blue shade for painting purpose; and homogeneity. The separation of the carbon place from the roller and filter does not take place, hence economical. The mechanical conveyance is absent hence the product is free from contaminations. #CMT#ORGANIC CHEMISTRY : #/CMT# Preparation (Claimed): Preparation of the carbon black comprises mixing a gas mixture containing a buoyant gas and carbon black raw material, optionally with hot air; introducing the gas mixture into a burner tube; subjecting the gas mixture to combustion at the openings of the burner tube; sucking the flames together with the ambient air, which is freely drawn from the outside; and cooling the flames together with an external free air by sucking through the self-constricting gap. Preferred Components: The aggregate size distribution ratio of half value width (FWHM) to D(mode) is = 0.6. The concentration of surface oxide is greater than 50 mmol/kg. #CMT#EXAMPLE : #/CMT# No suitable example given.</p> |
