ClassID:

92116

C07C67/54 - page 2 - CPC Classification

Classification description:

Preparation of carboxylic acid esters; Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation

Recent Application in this class:
#301
20080015384
2008-01-17

Process for producing acrylic ester

#302
20070256921
2007-11-08

Process for producing (meth) acrylic acids and process for distilling the same

#303
20070232766
2007-10-04

Method for Producing Fluorine-Containing Acrylic Ester

#304
20070203358
2007-08-30

Process for reactive distillation of a carboxylic acid

#305
20070197822
2007-08-23

Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream

#306
20070191625
2007-08-16

Integrated process for producing carbonylation acetic acid, acetic anhydride, or coproduction of each from a methyl acetate by-product stream

#307
20070191619
2007-08-16

Production and purification of esters of conjugated linoleic acids

#308
20070049768
2007-03-01

Composition of vinyl ether group containing (meth)acrylic acid ester and production method thereof

#309
20070037999
2007-02-15

Method for isolating a homogeneous catalyst containing rhodium

#310
20070032678
2007-02-08

Process for isolating vinyl acetate

#311
20070027340
2007-02-01

Azeotropic distillation process for separating acetic acid, methylacetate and water in the production of an aromatic carboxylic acid

#312
20070021633
2007-01-25

Process for producing (meth)acrylic acids and process for distilling the same

#313
20070015904
2007-01-18

Process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil

#314
20060235198
2006-10-19

Process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil

#315
20060205973
2006-09-14

Process for preparing alkyl esters of (meth)acrylic acid

#316
20060205972
2006-09-14

PROCESS FOR PREPARING ALKYL ESTERS OF (METH)ACRYLIC ACID

#317
20060144686
2006-07-06

Apparatus and method for handling easily polymerizable substance, apparatus for extracting liquid from apparatus under reduced pressure, and process for producing easily polymerizable substance

#318
20060074256
2006-04-06

Biodiesel process

#319
20060052619
2006-03-09

Method for producing linear or branched fatty acid esters by means of heterogeneously catalysed reactive rectification with an upstream reactor

#320
20060041165
2006-02-23

Continuous ethyl lactate preparation method

#321
20050261512
2005-11-24

Recycling polyethylene naphthalate containing materials in a process to produce diesters

#322
20050167362
2005-08-04

Process for recovering liquid chemical products in chemical production facility

#323
20050124075
2005-06-09

Method for the measurement of the pressure in a gas phase from rectification and/or absorption columns comprising (meth)acrylic acid the esters and/or nitriles thereof

#324
20050119500
2005-06-02

Method for the continuous production of alkyl (meth)acrylates

#325
20050109605
2005-05-26

Process to separate butadiene dimers

#326
20050107629
2005-05-19

Method for producing ethyl acrylate

#327
20050090676
2005-04-28

Method for producing technical oleic acid methyl esters

#328
20050059838
2005-03-17

Process for producing (meth) acrylic acid compound

#329
20050059837
2005-03-17

Method for producing butyl acrylate

#330
20050054874
2005-03-10

Process for producing (meth)acrylic acid compound

#331
20050020847
2005-01-27

Integrated process for the manufacture of alkenyl carboxylates

#332
17568911
2022-12-27

Preparation method of eicosapentaenoic acid ethyl ester

#333
15183289
2017-01-03

Removal of fatty acid from esterified propoxylated glycerin