US 11,725,102 B2
Method of providing homogeneous aqueous polyacrylamide concentrates and use thereof
Faissal-Ali El-Toufaili, Ludwigshafen am Rhein (DE); Dennis Loesch, Ludwigshafen am Rhein (DE); Anna-Corina Schmidt, Trostberg (DE); Tobias Joachim Zimmermann, Ludwigshafen am Rhein (DE); Markus Ostermayr, Ludwigshafen am Rhein (DE); Jack F. Tinsley, Houston, TX (US); Brent Busby, Houston, TX (US); and Daniel Barrera-Medrano, Ludwigshafen am Rhein (DE)
Assigned to BASF SE, Ludwigshafen am Rhein (DE)
Appl. No. 17/286,477
Filed by BASF SE, Ludwigshafen am Rhein (DE)
PCT Filed Oct. 17, 2019, PCT No. PCT/EP2019/078213
§ 371(c)(1), (2) Date Apr. 18, 2021,
PCT Pub. No. WO2020/079149, PCT Pub. Date Apr. 23, 2020.
Claims priority of application No. 18201107 (EP), filed on Oct. 18, 2018; and application No. 19168880 (EP), filed on Apr. 12, 2019.
Prior Publication US 2021/0347977 A1, Nov. 11, 2021
Int. Cl. C09K 8/588 (2006.01); C08L 33/26 (2006.01); E21B 43/16 (2006.01)
CPC C08L 33/26 (2013.01) [C09K 8/588 (2013.01); E21B 43/162 (2013.01)] 13 Claims
 
1. A process of providing polyacrylamides comprising at least the following steps
[1] mixing a polyacrylamide powder at a location A with an aqueous liquid by means of a mixing unit, thereby obtaining a homogeneous aqueous polyacrylamide concentrate having a concentration from 1% to 14.9% by weight of polyacrylamides, relating to the total of all components of the homogeneous aqueous polyacrylamide concentrate,
[2] filling a transport unit with said homogeneous aqueous polyacrylamide concentrate by pumping the concentrate into the transport unit and transporting said homogeneous aqueous polyacrylamide concentrate in the transport unit from location A to a different location B, wherein the location A is a manufacturing site local hub which provides location B, wherein location B is a plurality of different sites-of-use with said homogeneous aqueous polyacrylamide concentrate,
[3] removing the homogeneous aqueous polyacrylamide concentrate from the transport unit at the location B.