公开(公告)号：US20190202767A1

公开(公告)日：2019-07-04

申请号：US16221881

申请日：2018-12-17

Applicant: Rohm and Haas Electronic Materials LLC

Inventor： Andrey RUDENKO ,  Gerhard Pohlers

IPC: C07C51/44 ,  C07C7/20 ,  C11C1/10 ,  C11C3/10 ,  C07D307/08

CPC classification number: C07C51/44 ,  C07C7/005 ,  C07C7/04 ,  C07C7/20 ,  C07C29/80 ,  C07C41/42 ,  C07C41/46 ,  C07C45/82 ,  C07C67/54 ,  C07C2602/08 ,  C07C2602/14 ,  C07D307/08 ,  C11C1/103 ,  C11C3/10 ,  C07C43/11 ,  C07C43/04 ,  C07C43/13 ,  C07C69/708 ,  C07C69/68 ,  C07C31/205 ,  C07C15/02 ,  C07C49/395 ,  C07C49/403

Abstract: Provided are purification methods, comprising: (a) providing an organic solvent and a phenolic peroxide formation inhibitor, wherein the organic solvent has a first boiling point at standard atmospheric pressure (bp1) and the phenolic peroxide formation inhibitor has a second boiling point at standard atmospheric pressure (bp2) that satisfy the following inequality (I): bp2≤(1.10)(bp1)   (I); and (b) heating the organic solvent and the phenolic peroxide formation inhibitor to a temperature causing the organic solvent and phenolic peroxide formation inhibitor to vaporize, and (ii) condensing the vaporized organic solvent and peroxide formation inhibitor to provide a purified mixture of the organic solvent and peroxide formation inhibitor. The methods find particular use in the purification of solvents that are useful in process chemicals for the manufacture of semiconductor devices.

公开(公告)号：US20190185403A1

公开(公告)日：2019-06-20

申请号：US16280668

申请日：2019-02-20

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Ashley J. Malik ,  Jörg F.W. Weber ,  Medrado M. Leal

IPC: C07C49/543 ,  C07C45/82 ,  C07C45/53 ,  C07C45/00

CPC classification number: C07C49/543 ,  C07C45/006 ,  C07C45/53 ,  C07C45/82 ,  C07C2601/14 ,  C07C49/403

Abstract: Disclosed are processes for making such cyclohexanone compositions from a mixture comprising phenol, cyclohexanone, and cyclohexylbenzene. Such cyclohexanone compositions comprise at least 99 wt % cyclohexanone, at most 0.15 wt % water, and at most 500 wppm combined of certain cyclohexanone impurities selected from the group consisting of: benzene, cyclohexene, pentanal, cyclopentanol, cyclohexanol, and phenol.

公开(公告)号：US20180346399A1

公开(公告)日：2018-12-06

申请号：US15781055

申请日：2016-12-06

Applicant: UBE INDUSTRIES, LTD.

Inventor： Yoshinori SUGIMURA ,  Kazunori KUROSAWA ,  Kazuo YAMATO ,  Junichi KUGIMOTO ,  Joji KAWAI ,  Wanna SIRISUKSUKON ,  Nantariya NGAMSUP

IPC: C07C45/53 ,  C07C49/403 ,  C07C27/12 ,  C07C29/54 ,  C07C35/08

CPC classification number: C07C45/53 ,  C07C27/12 ,  C07C29/132 ,  C07C29/54 ,  C07C29/80 ,  C07C35/08 ,  C07C45/82 ,  C07C49/403 ,  C07C2601/14

Abstract: A method and a system for inexpensively producing a corresponding target ketone and/or alcohol by decomposing hydroperoxide rapidly and with high selectivity using an aqueous alkaline solution and by recovering and recycling alkali. The method includes neutralizing at least a part of a carboxylic acid in the oxidation reaction solution by contacting the oxidation reaction solution with a first alkaline solution including a carbonate of an alkali metal, and separating the reaction mixture into a first oil phase and a first water phase; decomposing the hydroperoxide and the ester compound in the first oil phase by contacting the first oil phase with a second alkaline solution having a higher pH value than the first alkaline solution, and separating the reaction mixture into a second oil phase and a second water phase; and recovering the carbonate of an alkali metal from the first water phase and recycling the carbonate of an alkali metal to the first alkaline solution.

公开(公告)号：US20180290954A1

公开(公告)日：2018-10-11

申请号：US15751360

申请日：2016-12-07

Applicant: LG CHEM, LTD.

Inventor： Sang-Beom LEE ,  Joon-Ho SHIN ,  In-Yong JEONG ,  Jong-Hui Park ,  Myeong-Yeon KEUM ,  Jeong-Ho KIM ,  Tae-Ho KIM

IPC: C07C37/08 ,  C07C37/74 ,  C07C37/68 ,  C07C45/53 ,  C07C45/78 ,  C07C45/82 ,  C07C37/52 ,  C07C45/51

CPC classification number: C07C37/08 ,  C07C37/52 ,  C07C37/68 ,  C07C37/72 ,  C07C37/74 ,  C07C37/86 ,  C07C45/512 ,  C07C45/517 ,  C07C45/53 ,  C07C45/78 ,  C07C45/80 ,  C07C45/82 ,  C07C39/04 ,  C07C49/08

Abstract: Disclosed is a method for recovering phenol and acetone from the cracking reaction product of bisphenol-A residue, by which economic feasibility and efficiency may be improved by utilizing a phenol/acetone purification process used for preparing bisphenol-A.

公开(公告)号：US10053408B2

公开(公告)日：2018-08-21

申请号：US15504217

申请日：2015-08-03

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Keith H. Kuechler ,  Jörg F. W. Weber ,  Ashley J. Poucher ,  Jason D. Davis ,  Christopher L. Becker ,  Jihad M. Dakka

IPC: C07C45/82 ,  C07C45/00 ,  C07C45/79

CPC classification number: C07C45/006 ,  C07C7/005 ,  C07C7/04 ,  C07C7/12 ,  C07C37/74 ,  C07C37/82 ,  C07C45/79 ,  C07C45/82 ,  C07C2601/14 ,  Y02P20/52 ,  C07C49/403 ,  C07C39/04 ,  C07C13/28

Abstract: Disclosed are processes for making cyclohexanone from a mixture comprising phenol, cyclohexanone, cyclohexylbenzene, and an S-containing component, comprising a step of removing at least a portion of the S-containing component to reduce poisoning of a hydrogenation catalyst used for hydrogenating phenol to cyclohexanone.

公开(公告)号：US09988331B2

公开(公告)日：2018-06-05

申请号：US13658003

申请日：2012-10-23

Applicant: BASF SE

Inventor： Gunnar Heydrich ,  Gabriele Gralla ,  Matthias Rauls ,  Joachim Schmidt-Leithoff ,  Klaus Ebel ,  Wolfgang Krause ,  Steffen Oehlenschläger ,  Christoph Jäkel ,  Marko Friedrich ,  Eike Johannes Bergner ,  Nawid Kashani-Shirazi ,  Rocco Paciello

IPC: C07C29/56 ,  C07C29/17 ,  C07C29/78 ,  C07C45/62 ,  C07C45/82

CPC classification number: C07C29/56 ,  C07B2200/07 ,  C07C29/172 ,  C07C29/78 ,  C07C45/62 ,  C07C45/82 ,  C07C2601/14 ,  C07C2601/16 ,  C07C47/21 ,  C07C35/12 ,  C07C35/17

Abstract: The present invention relates to a particularly economic overall method for producing menthol, specifically for producing optically active, essentially enantiomerically and diastereomerically pure L-menthol and racemic menthol, starting from the starting material citral which is available inexpensively on an industrial scale. The method has the following steps a.1) catalytic hydrogenation of neral and/or geranial to give citronellal, b.1) cyclization of citronellal to isopulegol in the presence of an acidic catalyst, c.1) purification of isopulegol by crystallization and d.1) catalytic hydrogenation of isopulegol to give menthol.

公开(公告)号：US20180043279A1

公开(公告)日：2018-02-15

申请号：US15469990

申请日：2017-03-27

Applicant: George L. Quinlan

Inventor： George L. Quinlan

IPC: B01D3/40 ,  B01D3/36

CPC classification number: B01D3/40 ,  B01D3/14 ,  B01D3/16 ,  B01D3/26 ,  B01D3/30 ,  B01D3/36 ,  B01D11/0203 ,  B01D11/0403 ,  B01D11/0407 ,  B01J3/008 ,  C07C45/82 ,  C07C49/395 ,  H01L21/02101

Abstract: Certain embodiments described herein are directed to separation systems and methods effective to separate two or more solvents in a solvent mixture. In certain examples, a system effective to separate two or more azeotrope forming solvents is provided. In some embodiments, the system can be effective to remove at least about 95% of one of the solvents from the solvent mixture.

公开(公告)号：US20170333808A1

公开(公告)日：2017-11-23

申请号：US15518397

申请日：2015-11-02

Applicant: LG CHEM, LTD.

Inventor： Sung Kyu LEE ,  Joon Ho SHIN

IPC: B01D3/14 ,  C07C47/02 ,  B01D5/00

CPC classification number: B01D3/14 ,  B01D5/006 ,  C07C45/82 ,  C07C47/02 ,  F25J2200/80

Abstract: The present application relates to a distillation device. By using the distillation device of the present application, energy loss occurring during a purification process of a mixture including an isomer, for example, a raw material including n-butyl aldehyde and iso-butyl aldehyde, can be minimized, and a high-purity product can be separated, thus increasing economic efficiency of a process.

公开(公告)号：US09765007B2

公开(公告)日：2017-09-19

申请号：US14917114

申请日：2014-09-18

Applicant: Rohm and Haas Company

Inventor： Stacy W. Hoy, IV ,  Dmitri A. Kraptchetov ,  Mark A. Silvano

IPC: C07C67/00 ,  C07C45/83 ,  C07C45/65 ,  C07C45/80 ,  C07C45/82 ,  C07C45/50 ,  C07C45/61 ,  C07C67/44

CPC classification number: C07C45/83 ,  C07C45/505 ,  C07C45/61 ,  C07C45/65 ,  C07C45/80 ,  C07C45/82 ,  C07C67/44 ,  C07C47/22

Abstract: A process for preparing dry methacrolein, and a process for producing methyl methacrylate are disclosed.

公开(公告)号：US09624153B2

公开(公告)日：2017-04-18

申请号：US15103842

申请日：2014-12-10

Applicant: Evonik Degussa GmbH ,  Marc Becker ,  Katrin Marie Dyballa ,  Robert Franke ,  Dirk Fridag ,  Hanna Hahn ,  Marina Lazar ,  Markus Priske ,  Guido Stochniol

Inventor： Marc Becker ,  Katrin Marie Dyballa ,  Robert Franke ,  Dirk Fridag ,  Hanna Hahn ,  Marina Lazar ,  Markus Priske ,  Guido Stochniol

IPC: C07C45/50 ,  B01D5/00 ,  B01J31/00 ,  B01D61/38 ,  B01J31/02 ,  B01J31/18 ,  C07C45/78 ,  B01D61/36 ,  B01J31/24 ,  C07C45/79 ,  C07C45/82

CPC classification number: C07C45/50 ,  B01D5/006 ,  B01D5/0072 ,  B01D61/362 ,  B01D61/38 ,  B01D2311/02 ,  B01D2311/04 ,  B01D2311/06 ,  B01D2311/263 ,  B01D2311/2669 ,  B01D2311/2673 ,  B01J31/0292 ,  B01J31/1845 ,  B01J31/185 ,  B01J31/24 ,  B01J2231/321 ,  B01J2531/822 ,  C07C45/786 ,  C07C45/79 ,  C07C45/82 ,  C07C47/02

Abstract: The invention relates to processes for preparing aldehydes by hydroformylation of alkenes, in which an alkene-containing feed mixture is subjected to a primary hydroformylation with synthesis gas in the presence of a homogeneous catalyst system, the primary hydroformylation being effected in a primary reaction zone from which a cycle gas containing at least some of the products and unconverted reactants of the primary hydroformylation are drawn off continuously and partly condensed, with recycling of uncondensed components of the cycle gas into the primary reaction zone, and with distillative separation of condensed components of the cycle gas in an aldehyde removal stage to give an aldehyde-rich mixture and a low-aldehyde mixture. The problem that it addresses is that of developing the process such that it achieves high conversions and affords aldehyde in good product quality even in the case of a deteriorating raw material position. More particularly, a solution is to be found for making legacy oxo process plants capable of utilizing lower-value raw material sources. This problem is solved by separating the low-aldehyde mixture into a retentate and a permeate by means of a membrane separation unit in such a way that alkenes present in the low-aldehyde mixture become enriched in the permeate, while alkanes present in the low-aldehyde mixture become enriched in the retentate. The alkene-rich permeate is then transferred into a secondary reaction zone and subjected to a secondary hydroformylation therein with synthesis gas in the presence of an SILP catalyst system. The reaction product obtained from the secondary hydroformylation is recycled into the aldehyde removal stage.