[12] Patent
[11] Patent No.:GC0009299  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2018                56/2018  
Number of the Decision to Grant the Patent:2018/141112
Date of the Decision to Grant the Patent:06/Dec/2018

[21] Application No.:GC 2014-26314

[22] Filing Date:26/1/2014

[30] Priority:

[33] State [32] Priority date [31] Priority No.
DE
25/1/2013
102013100789.9

[72] Inventors:1- Heinz NAPIERALA،2- Herbert KOCH،3- Britta JAKOBS-SAUTER،4- Meinolf ENNEKING،5- Uwe KALTWASSER

[73] Owner: Sasol Germany GmbH, Anckelmannsplatz 1, Hamburg 20537, Germany

[74] Agent: Abu-Gazaleh Intellectual Property L.L.C

  

 

  

[51]IPC:
Int. Cl.: C09K 8/584, C07C 303/24, C08L 81/06, C11D 1/831 (2006.01)

[56] Cited Documents:

-EP 0167337 A2 (ATLANTIC RICHFIELD CO [US]) 8 January 1986
-US 4477372 A (O'LENICK ANTHONY J [US]) 16 October 1984
-EP 0656416 A1 (HUELS CHEMISCHE WERKE AG [DE]) 7 June 1995
-US 4703797 A (DJABBARAH NIZAR F [US]) 3 November 1987
 
Examiner: Nouf AlNassban

[54] HIGHLY CONCENTRATED, ANHYDROUS AMINE SALTS OF HYDROCARBON ALKOXY SULFATES, USE THEREOF AND METHOD USING AQUEOUS DILUTIONS THEREOF
[57] Abstract: The present invention relates to highly concentrated, anhydrous amine salts of hydrocarbon polyalkoxy sulfates, wherein the salts are selected from the group of substituted amines, preferably alkanolamines. The products obtained are of low viscosity and pumpable at room temperature. Due to the absence of water, the salts are highly resistant to hydrolysis, even at high temperatures. The invention further relates to the use of the compositions ac-cording to the invention in an aqueous dilution for use in oil reservoirs with the aim of achieving enhanced oil production, or for the recovery of hydrocarbons from tar sands or other surfaces or materials provided with hydrocarbon.
No. of claims: 35


 

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