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Zaigang YANG
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Yantai, Shandong, CN
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Patents Grants
last 30 patents
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Patent Grant
Reaction system, catalyst and method for preparing β-phenylethanol
Patent number
11,389,780
Issue date
Jul 19, 2022
WANHUA CHEMICAL GROUP CO., LTD
Wei Zeng
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Catalyst for fixed bed aniline rectification residue recycling and...
Patent number
9,926,259
Issue date
Mar 27, 2018
Wanhua Chemical Group Co., Ltd.
Hua Mei
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
APPARATUS AND METHOD FOR RAPID COOLING OF HIGH TEMPERATURE GAS
Publication number
20220323897
Publication date
Oct 13, 2022
WANHUA CHEMICAL GROUP CO., LTD.
Mingyan SONG
C01 - INORGANIC CHEMISTRY
Information
Patent Application
REACTION SYSTEM, CATALYST AND METHOD FOR PREPARING BETA-PHENYLETHANOL
Publication number
20200298198
Publication date
Sep 24, 2020
WANHUA CHEMICAL GROUP CO., LTD.
Wei ZENG
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
CATALYST FOR FIXED BED ANILINE RECTIFICATION RESIDUE RECYCLING AND...
Publication number
20180065916
Publication date
Mar 8, 2018
WANHUA CHEMICAL GROUP CO., LTD.
Hua Mei
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
CATALYST USED FOR RESOURCE UTILIZATION OF A FIXED BED ANILINE DISTI...
Publication number
20160207876
Publication date
Jul 21, 2016
WANHUA CHEMICAL GROUP CO., LTD.
Hua Mei
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL