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Применить Всего найдено 2. Отображено 2.
10-12-2015 дата публикации

METHOD FOR PREPARING PARAXYLENE WITH CO-PRODUCTION OF PROPYLENE WITH HIGH SELECTIVITY

Номер: WO2015184600A1
Автор: XU, Lei, LIU, Zhongmin, ZHANG, Xinzhi
Принадлежит:

Disclosed is a method for preparing paraxylene with co-production of propylene with high selectivity. Firstly, the raw materials toluene and methanol and/or dimethyl ether are contacted with a catalyst and reacted in a reaction system, after the resultant product is separated via a separation system, the C2- component therein which is rich in ethylene (hydrocarbons with less than or equal to two carbon atoms and CO, CO2 and H2) is returned to the reaction system to continue the reaction, the C6+ component (aromatic hydrocarbons with greater than or equal to six carbon atoms) is further separated so as to obtain the paraxylene, and the C3 component (propylene and propane with equal to three carbon atoms) is further separated so as to obtain the propylene.In the method, by coupling two reaction processes, i.e. the alkylation reaction of toluene and methanol and/or dimethyl ether, and the alkylation reaction of ethylene and methanol and/or dimethyl ether, under a catalyst, the C2- component ...

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Номер записи: 1
09-06-2023 дата публикации

Breast cancer marker based on circulating tumor DNA and application thereof

Номер: CN116240287A
Автор: ZHAO YUAN, XIONG DUN, ZHANG XINZHI, XIA SHAOCAI, LUO ZHENGYONG
Принадлежит:

The invention belongs to the technical field of cancer detection preparations, and particularly relates to a breast cancer marker based on circulating tumor DNA and application of the breast cancer marker. The breast cancer marker comprises one or more of the following mutation site genes: PIK3CAH1047R, PIK3CAE542K, PIK3CAE545K, TP53R175C, TP53R248W, TTNR6745C, GATA3M294K, GATA3S238R, CDH1L630V, KMT2CK339N or KMT2CG315S, and the mutation site genes comprise one or more of the following mutation site genes: PIK3CAE1047R, PIK3CAE542K, PIK3CAE545K, TP53R175C, TP53R248W, TTNR6745C, when the breast cancer marker is screened in TCGA, the diagnosis sensitivity of the breast cancer marker to the breast cancer can reach 79.39%, and the breast cancer can be accurately positioned; compared with CanceSEEK, the CanceSEEK has the advantage that higher sensitivity (79.39% vs33%) of breast cancer detection is obtained by using fewer detection targets (11vs69).

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Номер записи: 2