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1. CN1874984 - Methof of producing unsaturated aldehyde and/or unsaturated acid

Office Chine
Numéro de la demande 200480031774.5
Date de la demande 24.12.2004
Numéro de publication 1874984
Date de publication 06.12.2006
Numéro de délivrance 1874984
Date de délivrance 24.08.2011
Type de publication B
CIB
C CHIMIE; MÉTALLURGIE
07
CHIMIE ORGANIQUE
C
COMPOSÉS ACYCLIQUES OU CARBOCYCLIQUES
51
Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides
16
par oxydation
21
avec l'oxygène moléculaire
23
de groupes contenant de l'oxygène en groupes carboxyle
235
de groupes -CHO ou de groupes alcool primaire
C07C 51/235
CPC
C07C 51/252
B01J 8/0453
B01J 8/067
B01J 23/002
B01J 23/8876
B01J 23/8885
Déposants LG Chemical Ltd.
LG化学株式会社
Inventeurs Shin Hyun-jong
申铉钟
Yoo Yeon-shick
柳渊植
Choi Byung-yul
崔柄烈
Choi Young-hyun
崔永贤
Cho Young-jin
赵永镇
Kim Duk-ki
金德基
Park Joo-yeon
朴柱渊
Park Kwang-ho
朴光镐
Mandataires nan ting zhu mei
北京金信立方知识产权代理有限公司 11225
北京金信立方知识产权代理有限公司 11225
Données relatives à la priorité 10-2003-0097864 26.12.2003 KR
Titre
(EN) Methof of producing unsaturated aldehyde and/or unsaturated acid
(ZH) 制备不饱和醛和/或不饱和酸的方法
Abrégé
(EN)
Disclosed is a shell-and-tube reactor that may be used in a method for producing unsaturated aldehydes and/or unsaturated acids from olefins by means of fixed-bad catalytic partial oxidation. The reactor includes at least one reaction zone of a first-step reaction zone for producing unsaturated aldehydes as a main product and second-step reaction zone for producing unsaturated acids as a main product, and at least one reaction zone of the reaction zones comprises two or more catalytic layers, each of the catalytic layers being packed with a formed product of catalyst as secondary particles, wherein the secondary particles in each catalytic layer are formed of primary particles of a catalytically active component having a different particle size, and the particle size of primary particles of the catalytically active component is controlled so that it decreases from an inlet of the reactor to an outlet of the reactor. A method for producing unsaturated aldehydes and/or unsaturated fatty acids from olefins using the same reactor is also disclosed. According to the present invention, it is possible to control the temperature efficiently at a hot spot, thereby permitting a catalyst to be used stably, and to produce unsaturated aldehydes and/or unsaturated fatty acids with high yield.

(ZH)

本发明披露了一种可用于通过固定床催化部分氧化反应由烯烃制备不饱和醛和/或不饱和酸的方法的壳管式反应器。所述反应器包括制备作为主要产物的不饱和醛的第一步反应区和制备作为主要产物的不饱和酸的第二步反应区的至少一个反应区,并且所述反应区的至少一个反应区包含两层或多层催化层,各催化层均填充有作为次级粒子的催化剂成形产物,其中各催化层中的次级粒子由具有不同粒度的催化活性组分的初级粒子形成,并控制催化活性组分的初级粒子的粒度以使该粒度从反应器入口至反应器出口减小。本发明还披露了一种使用上述反应器由烯烃制备不饱和醛和/或不饱和脂肪酸的方法。根据本发明,可有效控制热点处的温度,从而可稳定地使用催化剂并以高产率制备不饱和醛和/或不饱和脂肪酸。

Également publié en tant que
IN736/KOLNP/2006