Basf Aktiengesellschaft

Basf Se Corporation

Joerg Halpap

Bernd Sachweh

Norbert Wagner

Andreas Bode

Richard Van Gelder

Michael Mertler

Markus Linsenbuehler

Matthias Wilhelm Meier

Michael Pilz

Siegfried Welker

Andreas Marquard

Gerhard Kasper

Eberhard Herrmann

An apparatus, for separating liquid droplets out of a feed gas stream, includes a delay vessel for preliminary separation of some of the liquid droplets out of the feed gas stream under gravity, with an inlet line for the feed gas stream and an outlet line for the gas stream which has been depleted of liquid droplets and which flows out of the delay vessel and a tangential supply thereof into a centrifugal droplet separator. The outlet line is arranged in the upper region of the delay vessel and spaced apart from the inlet line to such an extent that the delay time of the gas stream in the delay vessel is at a maximum, and with an outlet line for the liquid separated in the delay vessel at the base thereof.

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The invention relates to processes for producing nanoparticles, especially pigment particles, comprising the following steps: i) bringing a base substance () into the gas phase, ii) generating particles by cooling or reacting the gaseous base substance (), and iii) applying electrical charge to the particles during particle generation in step ii) in a nanoparticle generation apparatus. The invention further relates to apparatus for producing nanoparticles, having a feed line () for transporting the gas stream () into the apparatus, a particle generation and charging area for substantially simultaneous generation and charging of nanoparticles, and a takeoff line () for transporting the charged nanoparticles from the particle generation and charging area.

Method and device for producing nanoparticles

Growing community of inventors

Mannheim, Germany

Joerg Halpap