ClassID:

90756

C07C7/14891 - CPC Classification

Classification description:

Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with organic compounds alcohols

Recent Application in this class:
#1
20250340497
2025-11-06

PROCESS FOR PURIFYING A RAW C4-HYDROCARBON MIXTURE

#2
20240300875
2024-09-12

PROCESS FOR OBTAINING ISOBUTENE FROM A C4-HYDROCARBON MIXTURE

#3
20240140885
2024-05-02

PROCESS FOR OBTAINING ISOBUTENE FROM A C4-HYDROCARBON MIXTURE

#4
20220402839
2022-12-22

Process for separating out an effluent obtained from an oligomerization step

#5
20210371360
2021-12-02

Method for separating non-linear olefins from an olefin feed by reactive distillation

#6
20190177250
2019-06-13

Method for separating and purifying isobutylene and method for producing isobutylene

#7
20180334538
2018-11-22

Purification of 1,4-bis (4-phenoxybenzoyl)benzene by centrifugal filtration

#8
20160340274
2016-11-24

Process to produce linear pentenes and metathesis thereof

#9
20160194259
2016-07-07

Method for producing hydrocarbon products

#10
20150166437
2015-06-18

Methods and apparatuses for processing hydrocarbons

#11
20150004236
2015-01-01

Efficient process for the preparation of lycopene containing oleoresin and lycopene crystals for human consumption

#12
20140378723
2014-12-25

Process for production of dialkylbenzenes

#13
20140142359
2014-05-22

Process to produce linear pentenes and metathesis thereof

#14
20130245348
2013-09-19

Production of propylene via simultaneous dehydration and skeletal isomerisation of isobutanol on acid catalysts followed by metathesis

#15
20130116489
2013-05-09

Separating styrene from C6-C8 aromatic hydrocarbons

#16
20130072733
2013-03-21

METHOD OF SEPARATING PENTENE-2 FROM A C5 CUT CONTAINING PENTENE-2 AND PENTENE-1 BY SELECTIVE OLIGOMERIZATION OF PENTENE-1

#17
20130066032
2013-03-14

PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE

#18
20120010451
2012-01-12

Process for obtaining high-purity 1-butene from C4 hydrocarbon mixtures

#19
20110152577
2011-06-23

Process for producing sec-butylbenzene

#20
20100144998
2010-06-10

PROCESS FOR FINE PURIFICATION OF 1-BUTENIC STREAMS

#21
20090171053
2009-07-02

Method for producing α-methylstyrene and heat-resistant styrene-based copolymer using the α-methylstyrene

#22
20080021255
2008-01-24

Process for fine purification of 1-butenic streams

#23
20060122444
2006-06-08

Method for producing butene oligomers and tert-butyl ethers from Cflows containing isobutene