FIELD: chemistry.
SUBSTANCE: invention relates to a water treatment method. The method, which enables to use an aqueous medium in conditions of excluding considerable interference from metal ions, involves adding a phosphonate compound to the water. The phosphonate compound contains a certain phosphonate fragment and a fragment selected from a limited number of compounds; or hydrocarbon chains containing substitutes in form of aminoalkylene phosphonic acids; or alkylaminoalkylene phosphonic acids containing an active fragment which includes N, O and S.
EFFECT: invention can be used in secondary oil recovery, inhibiting formation of salt deposits, treating water used for industrial purposes, treating paper mass and as an agent which binds metal ions into a chelate complex or dispersant.
10 cl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2527448C2 |
| REACTIVE PHOSPHONATES | 2007 |
|
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| METHOD OF PRODUCING ALKYLAMINOALKYLENE PHOSPHONIC ACIDS | 2007 |
|
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|
RU2537946C2 |
| COMPOSITION FOR INHIBITING FORMATION OF DEPOSITS OF CALCIUM SALTS | 2010 |
|
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|
RU2499135C2 |
| METHOD OF PRODUCING AMINOALKYLENE PHOSPHONIC ACID | 2009 |
|
RU2525919C2 |
| METHOD OF SCALE INHIBITION | 2007 |
|
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| INHIBITION OF SEDIMENTATION | 2007 |
|
RU2576053C2 |
| SET OF SALT DEPOSIT INHIBITORS HAVING GOOF PROFILES OF ABSORPTION AND THEIR USE IN OIL PRODUCTION | 2012 |
|
RU2550625C2 |
