Patent · US Active

Apparatus for producing pulverulent poly(meth)acrylate

US10252238B2 · kind B2 · utility

2Cited by

2References

10Claims

0Family size

Assignee

BASF SE

Inventors

Robert Bayer · Sinsheim, DE
Jürgen Freiberg · Lampertheim, DE
Rudolf Schliwa · Alzenau, DE
Marco Krüger · Mannheim, DE

Key dates

Filing date	Feb 25, 2016
Grant date	Apr 9, 2019
Priority date	—
Expiry date	Feb 25, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/1946
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An apparatus for producing pulverulent poly(meth)acrylate in a reactor for droplet polymerization having an apparatus for dropletization of a monomer solution for the production of the poly(meth)acrylate having holes through which the monomer solution is introduced, an addition point for a gas above the apparatus for dropletization, at least one gas withdrawal point on the circumference of the reactor and a fluidized bed, and above the gas withdrawal point the reactor has a region having a constant hydraulic internal diameter and below the gas withdrawal point the reactor has a hydraulic internal diameter that steadily decreases. The reactor has a heating means in the region having a steadily decreasing hydraulic internal diameter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.