ClassID:

90734

C07C7/05 - CPC Classification

Classification description:

Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds

Sub-classes:
Recent Application in this class:
#1
20250197323
2025-06-19

Thermally Coupled Distillation Scheme for Purification of Cumene

#2
20250100956
2025-03-27

Method for Purifying Linear Alpha Olefins

#3
20250019324
2025-01-16

SYSTEMS AND METHODS FOR PRODUCING HIGH PURITY AROMATICS FROM A MIXED AROMATIC FEED STREAM

#4
20240150264
2024-05-09

PROCESS FOR OBTAINING ISOBUTENE FROM A C4-HYDROCARBON MIXTURE

#5
20240026231
2024-01-25

Systems and methods for enhancing the recovery of styrene

#6
20230416173
2023-12-28

Distillation Process and Apparatus with Pressure Corrected Temperature Heat Source Control

#7
20230183153
2023-06-15

Thermally coupled distillation scheme for purification of cumene

#8
20230125062
2023-04-20

Systems and methods for producing high purity aromatics from a mixed aromatic feed stream

#9
20210323897
2021-10-21

Integrated stabilizer in deisobutanizer for isomerization of hydrocarbons and product separation

#10
20210031164
2021-02-04

Producing C5 olefins from steam cracker C5 feeds

#11
20200108368
2020-04-09

Producing C5 olefins from steam cracker C5 feeds—a process using a catalytic distillation reactor system

#12
20200002634
2020-01-02

Hybrid tray for introducing a low CO2 feed stream into a distillation tower

#13
20190233351
2019-08-01

Methods and systems for purifying 1,3-butadiene from a C4 hydrocarbon stream

#14
20190232249
2019-08-01

Producing C5 olefins from steam cracker C5 feeds

#15
20180297910
2018-10-18

Process for producing styrene

#16
20180215686
2018-08-02

Methods and systems for purifying 1,3-butadiene from a Chydrocarbon stream

#17
20180178187
2018-06-28

Producing C5 olefins from steam cracker C5 feeds

#18
20180178186
2018-06-28

Producing C5 olefins from steam cracker C5 feeds

#19
20180002254
2018-01-04

Process for preparing 1,3-butadiene from n-butenes by oxidative dehydrogenation

#20
20170036972
2017-02-09

Method of preparing conjugated diene and device therefor

#21
20170028312
2017-02-02

Process for removing water and/or oxygen from organic liquid

#22
20160221894
2016-08-04

Producing C5 olefins from steam cracker C5 feeds

#23
20160090339
2016-03-31

Method for refining dicyclopentadiene

#24
20160052840
2016-02-25

METHODS AND COMPOSITIONS FOR INHIBITING POLYSTYRENE FORMATION DURING STYRENE PRODUCTION

#25
20150166427
2015-06-18

Process and apparatus for recovering oligomerate

#26
20150159947
2015-06-11

Method and device for separating hydrocarbons and contaminants with a heating mechanism to destabilize and/or prevent adhesion of solids

#27
20150159946
2015-06-11

Method and system of modifying a liquid level during start-up operations

#28
20150159945
2015-06-11

Method of removing solids by modifying a liquid level in a distillation tower

#29
20150159944
2015-06-11

Method and device for separating a feed stream using radiation detectors

#30
20150159943
2015-06-11

Method and device for separating hydrocarbons and contaminants with a spray assembly

#31
20150159940
2015-06-11

Method and system of dehydrating a feed stream processed in a distillation tower

#32
20150159939
2015-06-11

Method and system of maintaining a liquid level in a distillation tower

#33
20150158796
2015-06-11

Method and system for separating a feed stream with a feed stream distribution mechanism

#34
20140200381
2014-07-17

Process for Preparing Butadiene by Oxidative Dehydrogenation of N-Butenes with Monitoring of the Peroxide Content During Work-Up of the Product

#35
20140200380
2014-07-17

Process for Preparing 1,3-Butadiene from N-Butenes by Oxidative Dehydrogenation

#36
20130150608
2013-06-13

Production of alkylaromatic compounds

#37
20130072729
2013-03-21

Methods and compositions for inhibiting polystyrene formation during styrene production

#38
20120233920
2012-09-20

Separation of light hydrocarbons and sour species from a sour gas

#39
20120142975
2012-06-07

Method for producing aryl, heteroaryl, or alkenyl-substituted unsaturated hydrocarbon

#40
20110272268
2011-11-10

Method for refining dicyclopentadiene

#41
20100010278
2010-01-14

PROCESS FOR SELECTIVE HYDROGENATION ON A GOLD-CONTAINING CATALYST

#42
20050090703
2005-04-28

Continuous recovery of styrene from a styrene-containing mixture

#43
20050004413
2005-01-06

Process and apparatus for separation and purification of conjugated diene