FIELD: polymer production.
SUBSTANCE: invention relates to high-molecular weight polymers containing salicylic acid pending groups used for clarification of red slime containing fluids obtained in Beyer process employed to recover alumina out of bauxite ore and provides water-soluble high-molecular weight polymer containing salicylic acid pending groups and having molecular weight at least 2000000 Dalton, which is prepared via free-radical polymerization of one or more monomers containing salicylic acid groups, one or more acrylate monomers selected from group consisting of (meth)acrylic acid, salts and esters thereof, and optionally one or more polymerizable monomers selected from group consisting of nonionic, anionic, cationic, and zwitterionic monomers, provided that such polymer is not polymer of acrylamide/4-acrylamidosalycilic acid copolymer prepared via solution polymerization.
EFFECT: enabled preparation of polymers increasing efficiency of precipitation of suspended solids in Beyer process fluids.
14 cl, 3 tbl, 14 ex
| Title | Year | Author | Number |
|---|---|---|---|
| HIGHLY MOLECULAR POLYMERS, CONTAINING SIDE GROUPS OF SALICYLIC ACID, INTENDED FOR CLEARING OF LYE IN BAYER METHOD | 2004 |
|
RU2362787C2 |
| INVERT-EMULSION POLYMER AND METHOD OF APPLICATION THEREOF | 2005 |
|
RU2384589C2 |
| PROCESS OF CLARIFYING BAYER PROCESS LIQUIDS USING SALICYLIC ACID-CONTAINING POLYMERS | 2001 |
|
RU2309123C2 |
| USING SILICON-CONTAINING POLYMERS TO IMPROVE FLOCCULATION OF RED MUD IN BAYER PROCESS | 2008 |
|
RU2429207C2 |
| WOOD TREATMENT METHOD | 2007 |
|
RU2441748C2 |
| METHOD FOR SEPARATING SUSPENDED SOLIDS FROM SOLUTIONS IN BAYER PROCESS | 0 |
|
SU1687029A3 |
| USING SILICON-CONTAINING POLYMERS TO INTENSIFY FLOCCULATION OF SOLID PARTICLES IN PROCESSES OF PRODUCING ALUMINA FROM COKEITES | 2009 |
|
RU2509056C2 |
| METHOD OF ISOLATING SUSPENDED SOLID PARTICLES BY ADDING HYDROXAMATED POLYMERS IN THE BEYER PROCESS | 1996 |
|
RU2147013C1 |
| SEPARATION TO SOLID-LIQUID OF CLAY SOLUTIONS ON OIL BASE | 2004 |
|
RU2340759C2 |
| SILICON-CONTAINING POLYMER FLOCCULANTS | 2016 |
|
RU2717813C1 |
