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:
The invention relates to lamp blacks having a DBP value of less than 100 ml/100 g. 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.
摘要:
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, to 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 as and/or liquid preparation or pigment.
摘要:
The invention relates to a process for aftertreating carbon black, wherein the carbon black is subjected to a carrier gas flow in a fluidized bed apparatus in the lower region of the apparatus, an additional gas stream is introduced into the fluidized bed apparatus, and the carbon black is aftertreated in the fluidized bed which arises.
摘要:
The invention relates to a pigment granulate which contains 40 to 65% by weight of pigment and at least 10% by weight of a compound of general formula (I) CH3—(CH2)n—CH2—O—[(CH2)p—O]m—H, wherein n=8-18, p=1-4 and m=35-100, the weight ratio of the compound of general formula I to the pigment being ≧ the STSA surface area of the pigment in m2/g multiplied by 0.0021 g/m2 and the mass-weighted particle size of the pigment granulate being
摘要:
An apparatus and method for rapid real time imaging with wavefield energy by inverse scattering using a C.P.U programmed to process data derived from wavefield energy that has been transmitted and scattered by an object so as to reconstruct a wavefield image of the object. Electronic signals are propagated and are transduced into wavefield energy waves which in turn are propagated toward the object. Detector means detect the wavefield energy waves scattered by the object. The detected wavefield energy waves are then electronically processed and input into a high-speed digital computer which may comprise a C.P.U. and/or a C.P.U in combination with an array or parallel processor. Data is also prepared and input to the computer representing the incident field and the computer then reconstructs a high-quality image of the object having high spacial resolution and including actual internal viscous and elastic properties of the object through the use of new inverse scattering techniques used in the data processing steps. The media in which the object is embedded may be fluid or solid, homogeneous, or layered (such as stratigraphic layering, or ocean velocity layers, or layering of composites in nondestructive imaging applications), or may consist of porous material (either sedimentary deposits or composites in nondestructive testing).
摘要:
The invention relates to a pigment granulate which contains 40 to 65% by weight of pigment and at least 10% by weight of a compound of general formula (I) CH3—(CH2)n—CH2—O—[(CH2)p—O]m—H, wherein n=8-18, p=1-4 and m=35-100, the weight ratio of the compound of general formula I to the pigment being ≧ the STSA surface area of the pigment in m2/g multiplied by 0.0021 g/m2 and the mass-weighted particle size of the pigment granulate being
摘要:
The invention relates to a process for aftertreating carbon black, wherein the carbon black is subjected to a carrier gas flow in a fluidized bed apparatus in the lower region of the apparatus, an additional gas stream is introduced into the fluidized bed apparatus, and the carbon black is aftertreated in the fluidized bed which arises.
摘要:
The invention relates to a process for producing nanostructured silicon-carbon composites, comprising the (A) introduction of at least one of components (a1) mono- and/or polyhydroxyaromatic compound, and (a2) an aldehyde, and (a3) a catalyst, into a reactor to obtain a composition in which the components react with one another in the presence of the catalyst at a reaction temperature T of 75 to 200° C., and at a pressure of 80 to 2400 kPa, and over a period to of 0.001 to 1 000 000 s, which gives a preliminary gel, and (B) introduction of at least one component (b1) sub-micron silicon powder, in crystalline or amorphous form, into the composition obtained during or after step (A), and then (C) introduction of the product obtained after step (B) into a neutralizing agent selected from an acid if (a3) is a basic catalyst, or an alkali if (a3) is an acidic catalyst, which gives a finely divided product, and (D) drying the product obtained during or after step (C) and then (E) carbonizing the product obtained after step (D) at a temperature of 500 to 1200° C., to the composites themselves, to the use thereof as an anode material for lithium ion cells and batteries, and to the lithium ion cells and batteries.
摘要:
A transmission wave field imaging method, comprising the transmission of an incident wave field into an object, the incident wave field propagating into the object and, at least, partially scattering. Also includes the measuring of a wave field transmitted, at least in part, through an object to obtain a measured wave field, the measured wave field based, in part, on the incident wave field and the object. Additionally, the processing of the measured wave field utilizing a parabolic approximation reconstruction algorithm to generate an image data set representing at least one image of the object.