Nova Patents
AT196129T

Removing suspended solids by addition of hydroxamated polymers in the bayer process

Abstract

The invention is in the Bayer of the flocculation speed of Bayer of the are at speed of the wash sequence the nitrogen, or by a and feed stream or into the wash the first stage the feed stream first with a) comprises low - molecular weight polymer with of different organic solvent acid group and/or a salt group; and b) an anionic polymer and one of different comprising organic solvent acid group in the mixture of contact with high molecule weight polymer.

Term

No projected expiry on record.

  1. Priority
  2. Filed
  3. Granted
  4. Today

16 members in 13 offices

This recordMember, by publication datePriority claim3 more offices are in the list below

Priority claims2

Priority claims
DocumentOfficeKindDate
55090895United States of AmericaA
9617250United States of AmericaW

Members16

Family members, oldest first
DocumentOfficeKind
US5601726AUnited States of AmericaA
CA2236043A1CanadaA1
WO9716378A1World Intellectual Property Organization (WIPO)A1
AU7480096AAustraliaA
EP0858430A1European Patent Office (EPO)A1
CN1198724AChinaA
AU699929B2AustraliaB2
BR9611181ABrazilA
RU2147013C1Russian FederationC1
EP0858430B1European Patent Office (EPO)B1
AT196129TThis recordAustriaT
ATE196129T1AustriaT1
DE69610215D1GermanyD1
OA10763AAfrican Intellectual Property Organization (OAPI)A
UA53631C2UkraineC2
IN190927BIndiaB