公开(公告)号：BRPI1012868A2

公开(公告)日：2018-02-20

申请号：BRPI1012868

申请日：2010-05-19

Applicant: BASF SE

Inventor： FRANK MRZENA ,  MICHAEL SCHOCENHERR ,  ROBERT HEINZ ,  THOMAS HEIDENFELDER

IPC: B01J2/16 ,  C07C227/00 ,  C11D3/33 ,  C11D7/32 ,  C11D11/02 ,  C11D17/00

公开(公告)号：MY153903A

公开(公告)日：2015-04-15

申请号：MYPI2011005601

申请日：2010-05-19

Applicant: BASF SE

Inventor： FRANK MRZENA ,  MICHAEL SCHOENHERR ,  ROBERT HEINZ ,  THOMAS HEIDENFELDER

IPC: B01J2/16

Abstract: THE INVENTION RELATES TO A METHOD FOR PRODUCING A SPRAY POWDER CONTAINING ONE OR MORE GLYCINE-N, N-DIACETIC ACID DERIVATIVES OF THE GENERAL FORMULA (I) MOOC-CHR-N(CH2COOM)2 (I), R STANDING FOR C1-12 ALKYL AND M STANDING FOR ALKALI METAL, STARTING FROM AN AQUEOUS SOLUTION CONTAINING THE ONE OR MORE GLYCINE-N, N-DIACETIC ACID DERIVATIVES, WHICH IS SPRAY-DRIED BY ADDING AIR, CHARACTERIZED IN THAT - THE AQUEOUS SOLUTION CONTAINS THE ONE OR MORE GLYCINE-N, N-DIACETIC ACID DERIVATIVES AT A FRACTION OF ? 84 WT.% RELATIVE TO THE TOTAL WEIGHT OF THE DRY MASS, AND THAT - THE SPRAY DRYING OCCURS IN A DRYING APPARATUS, TO WHICH THE AQUEOUS SOLUTION AND THE AIR ARE FED IN PARALLEL FLOW, WITH A TEMPERATURE GRADIENT BETWEEN THE AQUEOUS SOLUTION AND THE AIR IN THE RANGE OF 70 TO 350 °C, AND THAT - IN THE DRYING APPARATUS, THE AQUEOUS SOLUTION IS ATOMIZED INTO FINE LIQUID DROPLETS BY BEING GUIDED ONTO ONE OR MORE DISKS, WHICH ROTATE AT A CIRCUMFERENTIAL SPEED OF ? 100 M/S, OR BY BEING COMPRESSED BY MEANS OF A PUMP TO A PRESSURE OF ? 20 BAR ABSOLUTE AND INTRODUCED INTO THE DRYING APPARATUS AT THIS PRESSURE BY MEANS OF ONE OR MORE NOZZLES.