Feedback
Settings

Settings

Goto Application

1. WO2022161163 - PRODUCTION PROCESS FOR INDUSTRIAL PRENOL

Submit observation
PermaLink
Publication Number WO/2022/161163
Publication Date 04.08.2022
International Application No. PCT/CN2022/071497
International Filing Date 12.01.2022
IPC
C07C 29/38 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
36increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy groups, e.g. O-metal
38by reaction with aldehydes or ketones
C07C 33/025 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
33Unsaturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
02Acyclic alcohols with carbon-to-carbon double bonds
025with only one double bond
C07C 47/045 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
47Compounds having -CHO groups
02Saturated compounds having -CHO groups bound to acyclic carbon atoms or to hydrogen
04Formaldehyde
045Preparation by depolymerisation
CPC
C07C 29/38
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
36increasing the number of carbon atoms by reactions with formation of hydroxy groups, which may occur via intermediates being derivatives of hydroxy, e.g. O-metal
38by reaction with aldehydes or ketones
C07C 33/025
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
33Unsaturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
02Acyclic alcohols with carbon-to-carbon double bonds
025with only one double bond
C07C 45/513
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
45Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
51by pyrolysis, rearrangement or decomposition
511involving transformation of singly bound oxygen functional groups to >C = O groups
513the singly bound functional group being an etherified hydroxyl group
C07C 47/04
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
47Compounds having —CHO groups
02Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen
04Formaldehyde
Applicants
  • 天津安德胜科技服务有限公司 TIAN JIN AN DE SHENG SCIENCE -TECHNOLOGY SERVICE CO., LTD. [CN]/[CN]
Inventors
  • 王济群 WANG, Jiqun
  • 刘世杰 LIU, Shijie
Agents
  • 北京集佳知识产权代理有限公司 UNITALEN ATTORNEYS AT LAW
Priority Data
202110103340.726.01.2021CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) PRODUCTION PROCESS FOR INDUSTRIAL PRENOL
(FR) PROCÉDÉ DE PRODUCTION DE PRÉNOL INDUSTRIEL
(ZH) 一种工业化异戊烯醇的生产工艺
Abstract
(EN) The present invention provides a production process for industrial prenol, comprising the following steps: A) performing depolymerization on polyoxymethylene to generate free formaldehyde; and B) contacting the free formaldehyde with basic isobutylene for performing the Prins reaction to obtain prenol, wherein the basic isobutylene consists of isobutylene and an alkaline medium, and a pH value of the basic isobutylene is 7.4-7.8. The raw material of the present invention is basic isobutylene, and the base in basic isobutylene can neutralize formic acid generated by means of the disproportionation of formaldehyde in an addition reaction and effectively prevent a side reaction of the dimerization of isobutylene by which dimethylhexene and trimethylcyclopentane are generated, thereby improving the chroma of a prenol product to yield colorless and transparent prenol.
(FR) La présente invention concerne un procédé de production de prénol industriel, comprenant les étapes suivantes consistant à : A) Réaliser une dépolymérisation sur du polyoxyméthylène pour générer du formaldéhyde libre ; et B) mettre en contact du formaldéhyde libre avec de l'isobutylène basique pour réaliser la réaction de Prins afin d'obtenir du prénol, l'isobutylène basique étant constitué d'isobutylène et d'un milieu alcalin, et une valeur de pH de l'isobutylène basique étant de 7,4 à 7,8. La matière première de la présente invention est l'isobutylène basique, et la base dans l'isobutylène basique peut neutraliser l'acide formique généré au moyen de la dismutation du formaldéhyde dans une réaction d'addition et empêcher de manière efficace une réaction latérale de dimérisation de l'isobutylène au moyen duquel le diméthylhexène et le triméthylcyclopentane sont générés, ce qui permet d'améliorer la saturation d'un produit prénol pour produire du prénol incolore et transparent.
(ZH) 本发明提供了一种工业化异戊烯醇的生产工艺，包括以下步骤：A)多聚甲醛进行解聚生成游离的甲醛；B)将所述游离的甲醛与碱性异丁烯接触，进行普林斯反应，得到异戊烯醇；所述碱性异丁烯为包括异丁烯和碱性介质，所述碱性异丁烯的pH值为7.4～7.8。本发明的原料为碱性异丁烯，碱性异丁烯中的碱可以中和加成反应中甲醛歧化生成的甲酸，并且有效阻止异丁烯二聚生成二甲基己烯和三甲基环戊烷的副反应；从而提高异戊烯醇产品的色度，得到无色透明的异戊烯醇。
Related patent documents
CN112430178
Latest bibliographic data on file with the International Bureau
# -