国家/地区 中国（3）
IPC部 C（4）
IPC大类 C07（4） B01（3）
IPC小类 C07C（4） B01J（3）
IPC C07C015/08（4）
发明人 FANG X（2） LIU X（2） PAN Y（2）
XIE P（2） YAN C（2）
公开年 2023（4）
申请年 2023（2） 
专利权人 WEIFANG HONG.（2）

Preparing high-purity m-xylene comprises e.g. contacting the mixed xylene with the adsorbent, discharging the raffinate, then contacting the desorbent with the adsorbed adsorbent, mixing the first part of m-xylene with the second part of m-xylene, cooling, crystallizing, and washing.

XIE P, YAN C, MENG L, FANG X, PAN Y, LI Z, XU X, LIU X

Producing modified graphene used in modified graphene-resin composite, modified graphene sheet, and modified graphene dispersion, involves bonding azide group to carbon atom of surface of graphene through radical addition reaction based on abstraction of hydrogen atom in an aqueous system.

KOBAYASHI Y, SUZUKI K, KITAO A, WATANABE T

Catalyst used in preparation of toluene and xylene by alkylation of benzene and methanol, comprises graphene oxide-containing molecular sieves and metal oxides, where morphology of catalyst is multi-stage porous column.

ZOU W, REN S

Producing o-xylene comprises e.g. catalyzing 3-nitro-o-xylene by hydrogenation catalyst to generate 3-amino-o-xylene, hydrogenating into o-xylene and ammonia gas under catalytic action of hydrogen decomposing catalyst, absorbing ammonia gas by acid solution, and obtaining high-purity o-xylene.

JIA X, GAO X, FANG X, PAN Y, LIU X, XIE P, XUN Q, YAN C