摘要:
The invention relates to a carbon black having an aggregate size distribution which has a (d90−d10)/d50 ratio of less than or equal to 1.1. The carbon blacks are produced by admixing hot air if desired to a gas mixture comprising a carrier gas and a carbon black feedstock, passing the gas mixture into a burner pipe, burning the gas mixture at the burner pipe openings, and drawing the flames under suction, together with the ambient air drawn in freely under suction from the outside, through a cooled, narrowing gap, and carrying out cooling, the cooled, narrowing gap having a height (h) to width (b) ratio of 1-100, the width (b) being 0.5 to 10 mm, and the flow rate at the narrowest point of the gap being 10-200 m/s. The carbon blacks can be used as non-reinforcing filler, reinforcing filler, UV stabilizer, conductive black, pigment or reducing agent.
摘要:
Pigment preparation containing at least one pigment and at least one compound of the general formula CH3—(CH2)n—CH2—O—[(CH2)p—O]m—H. The pigment preparation can be produced by dispersing and drying.It can be used for coloration and/or antistaticization in waterborne color and varnish systems, emulsion paints, printing inks, liquid-ink systems and coating systems.
摘要:
The invention relates to a method for producing silicon carbide through reaction of silicon oxide and a carbon source comprising a hydrocarbon at high temperature, in particular to a technical method for producing silicon carbide or for producing compositions containing silicon carbide. The invention further relates to a high-purity silicon carbide, to compositions containing the same, to the use thereof as a catalyst and for the production of electrodes and other items.
摘要:
The invention relates to a method of determining the transport behaviour in the pneumatic transport of granular materials, in which (A) the sample of granular material is introduced into a feed chute, (B) the sample of granular material is, after the feed chute, introduced via an injector into a regulated stream of air, (C) the sample of granular material flows through a transport section and (D) the sample of granular material is measured in a laser light scattering spectrometer, wherein in step (B) the sample of granular material is introduced via a Venturi injector. The apparatus for carrying out the method comprises a feed chute for introduction of granular materials into the transport section, a feed chute for introduction of unstressed granular materials into the laser light scattering spectrometer, an air flow regulating valve, a Venturi injector, a transport section and a laser light scattering spectrometer (4).
摘要:
Ink jet inks comprising a modified pigment, wherein the modified pigment is a pigment having attached organic groups of substituted or unsubstituted 1,2-benzenedicarboxylic acids and/or salts thereof.
摘要:
The invention relates to a carbon black having an aggregate size distribution which has a (d90-d10)/d50 ratio of less than or equal to 1.1. The carbon blacks are produced by admixing hot air if desired to a gas mixture comprising a carrier gas and a carbon black feedstock, passing the gas mixture into a burner pipe, burning the gas mixture at the burner pipe openings, and drawing the flames under suction, together with the ambient air drawn in freely under suction from the outside, through a cooled, narrowing gap, and carrying out cooling, the cooled, narrowing gap having a height (h) to width (b) ratio of 1-100, the width (b) being 0.5 to 10 mm, and the flow rate at the narrowest point of the gap being 10-200 m/s. The carbon blacks of the invention can be used as non-reinforcing filler, reinforcing filler, UV stabilizer, conductive black, pigment or reducing agent.
摘要翻译:本发明涉及一种具有小于(d-90%-90%)/ d <50%的聚集体尺寸分布的炭黑 或等于1.1。 如果需要,将炭黑混合到包含载气和炭黑原料的气体混合物中,将气体混合物通入燃烧器管中,在燃烧器管口处燃烧气体混合物,并在抽吸下抽吸火焰来制备炭黑 与从外部抽吸自由吸入的环境空气一起通过冷却,变窄的间隙进行冷却,冷却的变窄间隙的高度(h)至宽度(b)比为1-100, 宽度(b)为0.5〜10mm,间隙最窄点处的流量为10〜200m / s。 本发明的炭黑可用作非增强填料,增强填料,UV稳定剂,导电黑,颜料或还原剂。
摘要:
The invention concerns a method for producing post-treated carbon black, where the carbon black is fluidized in the fluidized bed while adding fluidizing agents and brought into contact with a post-treatment agent.
摘要:
A method for producing carbon black or other flame aerosols, comprising the following steps: the heat is removed from the flame by dissipation and/or radiation; a thin gas boundary layer is formed; the flow formed by the flame and the gas boundary layer is accelerated or expanded; the obtained aerosol is withdrawn; and the cooling surface is cleaned. The invention further relates to a device for carrying out such a method and a black carbon having a maximum pH value of 6.0, a maximum ignition residue of 0.1 percent, and a maximum 5 μm screening refuse of 200 ppm. The inventive black carbon can be used in rubber, plastic, bitumen, concrete, and other construction materials.
摘要:
The present invention is directed to carbon black granules containing a sorbitan triester. In addition, a process for the production of these carbon black granules is described, in which a powdered carbon black or beaded carbon black is beaded with a sorbitan triester. The carbon black granules can be used in polymer blends, lacquers, inks or pigments.
摘要:
A process for the production of modified carbon black, in which a carbon black dispersion containing carbon black, water and wetting agent, is mixed with an acid, aqueous solution or suspension of a primary amine and then reacted with sodium nitrite solution.