FIELD: chemistry.
SUBSTANCE: invention refers to advanced method of production of (meth)acrylic acid ester including (meth)acrylic acid purification by contacting raw (meth)acrylic acid containing manganese as an impurity manganese, and cation-exchange resin to remove manganese. To ensure contacting raw (meth)acrylic acid and cation-exchange resin, water is pre-added to (meth)acrylic acid. Besides, the method involves reaction of purified (meth)acrylic acid and alcohol with acid catalyst added.
EFFECT: method allows preventing effectively deactivation of the acid catalyst used in etherification reaction, equipment plugging and can ensure stable ester manufacturing.
3 cl, 5 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCING (MET) ACRYLIC ACID AND COMPLEX (MET) ACRYLIC ESTERS | 2004 |
|
RU2349577C2 |
| METHOD FOR SYNTHESIS OF ALKYL(METH)ACRYLATES | 2006 |
|
RU2409552C2 |
| METHOD FOR OBTAINING (METH)ACRYLIC ACID | 2003 |
|
RU2333194C2 |
| METHOD OF (METH)ACRYLIC ACID PURIFICATION | 2004 |
|
RU2350598C2 |
| METHOD OF PRODUCING CARBOXYLIC ALKYL ESTERS | 2006 |
|
RU2425024C2 |
| METHOD FOR PRODUCING (METH)ACRYLIC ACID | 2016 |
|
RU2745605C2 |
| METHOD OF OBTAINING (METH)AKRYLIC ESTWERS | 2004 |
|
RU2353611C2 |
| METHOD OF PRODUCING DIALKYL ETHER OF NAPHTHALENE DICARBOXYLIC ACID (VERSIONS) | 2005 |
|
RU2397158C2 |
| METHOD OF PRODUCING ESTERS OF CARBOXYLIC ACIDS | 2022 |
|
RU2813102C1 |
| METHOD FOR SYNTHESIS OF BIORESOURCE ACRYLIC ESTERS | 2009 |
|
RU2514422C2 |
