Title:
A METHOD OF PROTECTING CATALYST USED FOR PREPARING LOW FATTY ESTER
Document Type and Number:
WIPO Patent Application WO/2009/006815
Kind Code:
A1
Abstract:
A method of protecting catalyst used for preparing low fatty ester is provided.
An acid ion exchanging resin catalyst is protected by washing 2-5C olefin to eliminate
part of catalyst toxin in olefin before they enter the reactor; and eliminating
harmful substances of 1-4C fatty acid and/or 2-5C olefin using reaction assistant
agent in a pre-reactor. The advantage of the invention is that the method prevents
catalyst poisoning since the harmful impurities have been eliminated, so that
catalyst will not lose reactive ability when it is used more than 6 months, at the
same time the reaction assistant agent for protecting the catalyst has no metal
ion crossing filter phenomenon, and there is small pressure difference between
the bed layers of the reaction agent.
Inventors:
HU, Xiannian (Hunan Zhongchuang Chemical Co, Ltd Jimei Village Changling Refinery Yunxi Distric, Yueyang Hunan 2, 414012, CN)
胡先念 (中国湖南省岳阳市云溪区长炼集美村湖南中创化工有限责任公司, Hunan 2, 414012, CN)
LI, Hua (Hunan Zhongchuang Chemical Co, Ltd Jimei Village Changling Refinery Yunxi Distric, Yueyang Hunan 2, 414012, CN)
李华 (中国湖南省岳阳市云溪区长炼集美村湖南中创化工有限责任公司, Hunan 2, 414012, CN)
胡先念 (中国湖南省岳阳市云溪区长炼集美村湖南中创化工有限责任公司, Hunan 2, 414012, CN)
LI, Hua (Hunan Zhongchuang Chemical Co, Ltd Jimei Village Changling Refinery Yunxi Distric, Yueyang Hunan 2, 414012, CN)
李华 (中国湖南省岳阳市云溪区长炼集美村湖南中创化工有限责任公司, Hunan 2, 414012, CN)
Application Number:
CN2008/071388
Publication Date:
January 15, 2009
Filing Date:
June 20, 2008
Export Citation:
Assignee:
HUNAN ZHONGCHUANG CHEMICAL CO., LTD (Jimei Village, Changling Refinery Yunxi Distric, Yueyang Hunan 2, 414012, CN)
湖南中创化工有限责任公司 (中国湖南省岳阳市云溪区长炼集美村, Hunan 2, 414012, CN)
HU, Xiannian (Hunan Zhongchuang Chemical Co, Ltd Jimei Village Changling Refinery Yunxi Distric, Yueyang Hunan 2, 414012, CN)
胡先念 (中国湖南省岳阳市云溪区长炼集美村湖南中创化工有限责任公司, Hunan 2, 414012, CN)
LI, Hua (Hunan Zhongchuang Chemical Co, Ltd Jimei Village Changling Refinery Yunxi Distric, Yueyang Hunan 2, 414012, CN)
湖南中创化工有限责任公司 (中国湖南省岳阳市云溪区长炼集美村, Hunan 2, 414012, CN)
HU, Xiannian (Hunan Zhongchuang Chemical Co, Ltd Jimei Village Changling Refinery Yunxi Distric, Yueyang Hunan 2, 414012, CN)
胡先念 (中国湖南省岳阳市云溪区长炼集美村湖南中创化工有限责任公司, Hunan 2, 414012, CN)
LI, Hua (Hunan Zhongchuang Chemical Co, Ltd Jimei Village Changling Refinery Yunxi Distric, Yueyang Hunan 2, 414012, CN)
International Classes:
C07C67/04; B01D15/04; B01J31/08; B01J33/00; C07C69/12
Attorney, Agent or Firm:
HUNAN ZHAOHONG PATENT LAW OFFICE (ZHAO, Hong2701, Shuntian Building, No.185, Middle Furong Road, Changsha Hunan 1, 410011, CN)
Download PDF:
Previous Patent: A METHOD AND SYSTEM FOR CATEGORIZING CONTENT
Next Patent: POLICY CONTROL METHOD, DEVICE AND SYSTEM FOR APPLICATION
Next Patent: POLICY CONTROL METHOD, DEVICE AND SYSTEM FOR APPLICATION