FIELD: technological processes.
SUBSTANCE: defoaming agents of invention have high hydroxyl equivalent molecular mass and demonstrate excellent defoaming properties at low cloud temperature. Besides, these defoaming agents have better defoaming properties compared to similar defoaming agents that have the same cloud temperature, on the basis of copolymers of polyalkylene oxides, which have been produced in the presence of potassium hydroxide. Invention objective is to provide method of water system foaming suppression, which includes combination of water and at least one defoaming composition, which has hydroxyl equivalent molecular mass of at least 4000 and cloud temperature less or equal to 30°C in 1% aqueous solution.
EFFECT: obtained defoaming properties are especially useful in production or processing of food products.
9 cl, 3 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| POLYOXYALKYLENE-POLYOL PRODUCTION PROCESS (OPTIONS) | 1998 |
|
RU2245344C2 |
| METHOD OF PRODUCING NON-PHENOL ETHOXYLATES | 2008 |
|
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| FOAMED POLYURETHANE, SYNTHESIS METHOD THEREOF AND CONTINUOUS METHOD FOR SYNTHESIS OF ALKOXYLATED HYDROXYLATE OF PLANT OIL | 2006 |
|
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| POLYOL DISPERSION FOR SUPERSOFT POLYURETHANE FOAM | 1999 |
|
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| FOAM CONTROL FORMULATIONS | 2013 |
|
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| PROCESS ADDITIVE FORMULATION AND METHOD FOR FOAM REDUCTION AND/OR FOR INCREASING DEHYDRATION | 2014 |
|
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| METHOD OF PRODUCING POLYESTER POLYOLS CONTAINING ETHER GROUPS AND ESTER GROUPS | 2010 |
|
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| POLYOLS, INITIATED WITH CIS- AND/OR TRANS-ORTHO-CYCLOHEXANEDIAMINE, AND RIGID POLYURETHANE FOAM PLASTICS, MANUFACTURED FROM THEM | 2008 |
|
RU2467025C2 |
| NONIONIC SURFACTANTS FOR ENHANCED CRUDE OIL RECOVERY | 2012 |
|
RU2598957C2 |
| CONTROL OF FOAM GENERATION IN AQUEOUS MEDIA | 2006 |
|
RU2397003C2 |
