Process for preparing alkylated hydroxyaromatics in microreactors
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C07C-037/48
H01B-003/30
C07C-037/16
H01B-003/20
출원번호
US-0413868
(2012-03-07)
등록번호
US-9012697
(2015-04-21)
우선권정보
DE-10 2011 005 228 (2011-03-08)
발명자
/ 주소
Bleifuβ, Oliver
Rost, Simon
Lienert, Klaus-Wilhelm
Moritz, Hans-Ulrich
출원인 / 주소
Elantas GmbH
대리인 / 주소
Birch, Stewart, Kolasch & Birch, LLP
인용정보
피인용 횟수 :
0인용 특허 :
8
초록▼
A process is proposed for preparing hydroxyaromatics by heterogeneous catalytic reaction of hydroxyaromatics with C1-C4-alkanols in a microreactor (10), comprising the steps of: a) introducing the hydroxyaromatic and at least one compound selected from the group consisting of C1-C4-alkanols as react
A process is proposed for preparing hydroxyaromatics by heterogeneous catalytic reaction of hydroxyaromatics with C1-C4-alkanols in a microreactor (10), comprising the steps of: a) introducing the hydroxyaromatic and at least one compound selected from the group consisting of C1-C4-alkanols as reactants into at least one inlet orifice (22) of the microreactor (10) comprising at least one microreactor unit (18),b) passing the reactants through at least one microreactor unit (18) of the microreactor (10), said unit comprising a multitude of microchannels (28), said microchannels (28) having a lateral extent of less than 1 mm, and a heterogeneous catalyst being incorporated in the microchannels (28) for conversion of the reactants,c) passing the hydroxyaromatics prepared out through at least one outlet orifice (24) of the microreactor (10).
대표청구항▼
1. A process for preparing alkylated hydroxyaromatics by heterogeneous catalytic reaction of hydroxyaromatics with C1-C4-alkanols in a microreactor, wherein the hydroxyaromatics comprise at least one phenol compound selected from the group consisting of phenol, o-cresol, m-cresol, p-cresol, xylenols
1. A process for preparing alkylated hydroxyaromatics by heterogeneous catalytic reaction of hydroxyaromatics with C1-C4-alkanols in a microreactor, wherein the hydroxyaromatics comprise at least one phenol compound selected from the group consisting of phenol, o-cresol, m-cresol, p-cresol, xylenols, trimethylphenols, tetramethylphenols, ethylphenols, diethylphenols, triethylphenols, iso-propylphenols, di-iso-propylphenols, tri-iso-propylphenols, tetra-iso-propylphenols, n-propylphenols, di-n-propylphenols, tri-n-propylphenols, tetra-n-propylphenols, tert-butylphenols, di-tert-butylphenols, tri-tert-butylphenols, and tetra-tert-butylphenols andwherein the C1-C4-alkanols used are methanol, ethanol, n-propanol, isopropanol, or mixtures thereof;said process comprising the steps of: first, providing at least one microreactor unit formed from 2 to 10 plates which lie one on top of the other and have surface recesses that form microchannels, said microchannels being 50 mm to 150 mm in length, thena) introducing the hydroxyaromatic and at least one compound selected from the group consisting of C1-C4-alkanols as reactants into at least one inlet orifice of the microreactor comprising at least one said microreactor unit,b) passing the reactants through at least one microreactor unit of the microreactor at a temperature of from 300 to 600° C., said unit comprisinga multitude of microchannels, said microchannels having a maximum lateral extent of less than 0.6 mm, anda heterogeneous catalyst being incorporated in the microchannels for conversion of the reactants, wherein said heterogeneous catalyst is introduced into the microchannels by washcoating the plates and optionally impregnating the washcoat with an active component, and c) passing the hydroxyaromatics prepared out through at least one outlet orifice of the microreactor. 2. The process according to claim 1, characterized in that the heterogeneous catalyst comprises a solid support. 3. The process according to claim 2, characterized in that the solid support comprises one or more components from the group consisting of inorganic oxides, carbon, polymers, clay, a zeolite or mesoporous solids. 4. The process according to claim 2, characterized in that the heterogeneous catalyst comprises an active component on the solid support. 5. The process according to claim 1, characterized in that the heterogeneous catalyst consists essentially of alumina. 6. The process according to claim 1, characterized in that the reactants are in the liquid phase, in the gaseous phase or in biphasic form.
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이 특허에 인용된 특허 (8)
Ito Muneo (Tsukuba JPX), Catalyst for alkylation of phenols.
Yago Shunji,JPX ; Kakiuchi Takashi,JPX ; Arimatsu Keiji,JPX ; Matsunaga Fujihisa,JPX, Catalyst for ortho-alkylation of phenols, a precursor thereof, and production of ortho-alkylated phenols by use of said.
Ashmead James W. (Middletown DE) Blaisdell Charles T. (Middletown DE) Johnson Melvin H. (Chadds Ford PA) Nyquist Jack K. (Chadds Ford PA) Perrotto Joseph A. (Landenberg PA) Ryley ; Jr. James F. (Drex, Integrated chemical processing apparatus and processes for the preparation thereof.
Ashmead James William (Middletown DE) Blaisdell Charles Thomas (Middletown DE) Johnson Melvin Harry (Chadds Ford PA) Nyquist Jack Kent (Chadds Ford PA) Perrotto Joseph Anthony (Landenberg PA) Ryley ;, Integrated chemical processing apparatus and processes for the preparation thereof.
Wegeng Robert S. ; Drost M. Kevin ; Call Charles J. ; Birmingham Joseph G. ; McDonald Carolyn Evans ; Kurath Dean E. ; Friedrich Michele, Microcomponent chemical process sheet architecture.
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