公开(公告)号：US20180326392A1

公开(公告)日：2018-11-15

申请号：US15774620

申请日：2016-11-16

Applicant: BASF SE

Inventor： Marco Krüger ,  Karl Possemiers ,  Rudolf Schliwa ,  Robert Bayer

IPC: B01J19/24 ,  B01J19/06 ,  B01J8/18 ,  B01J8/22 ,  B01J8/00 ,  C08F120/14

CPC classification number: B01J19/245 ,  B01J4/002 ,  B01J8/0055 ,  B01J8/1818 ,  B01J8/22 ,  B01J19/06 ,  B01J19/24 ,  B01J2208/00761 ,  B01J2219/185 ,  C08F120/14

Abstract: The invention relates to an apparatus for producing pulverulent poly(meth)acrylate, comprising a reactor for droplet polymerization having an apparatus for dropletization of a monomer solution for the preparation 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, the reactor comprising a reactor shell between the apparatus for dropletization and the gas withdrawal point and having, above the fluidized bed, a region having decreasing hydraulic diameter toward the fluidized bed and having a maximum hydraulic diameter greater than the mean hydraulic diameter of the reactor shell, and the reactor shell projecting into the region having decreasing hydraulic diameter, so as to form an annular duct between the outer wall of the reactor shell and the wall by which the region having decreasing hydraulic diameter is bounded, and the at least one gas withdrawal point being disposed in the annular duct, wherein the ratio of the horizontal area of the annular duct to the horizontal area enclosed by the reactor shell is in the range from 0.3 to 5.

公开(公告)号：US20180126351A1

公开(公告)日：2018-05-10

申请号：US15564219

申请日：2016-03-23

Applicant: BASF SE

Inventor： Robert Bayer ,  Juergen Freiberg ,  Oliver Gampfer ,  Marco Krueger

IPC: B01J4/00 ,  B01J19/26 ,  C08F2/01

CPC classification number: B01J4/002 ,  B01J4/007 ,  B01J19/26 ,  B01J2219/185 ,  B01J2219/1943 ,  C08F2/01

Abstract: The invention relates to an apparatus for introduction of droplets into a reactor, comprising a holder for at least one dropletizer unit, where the dropletizer unit has a feed for a liquid to be dropletized and a dropletizer plate and the dropletizer plate has holes through which a liquid to be dropletized is introduced into the reactor, where the holder for the at least one dropletizer unit can be pushed into the reactor or pulled out of the reactor through an opening in the shell of the reactor. At least one rail is accommodated within the reactor and is used to guide the holder for the at least one dropletizer unit along it.