-
公开(公告)号：US20180339285A1
公开(公告)日：2018-11-29
申请号：US15776985
申请日：2017-03-02
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Wei MA , Shibo DUAN , Shuangen YU , Fanqing MENG , Ren WANG , Jun XU , Liyan GUO , Lei WU , Zhuo LIU , Dazhi TAN
Abstract: The invention belongs to the field of chemical separation, hydrometallurgy and resource recovery and provides a method for preparing and applying of ion-keeper adsorbent. By adjusting the pH to selective oxidation to achieve the oxidation of ferrous iron into ferric iron. Separates the iron after the hydrothermal reaction; By using of ion imprint “ion keeper” effect and biomass as raw materials, to prepare the adsorbent with internal rules, hierarchical pores and high selectivity. It can be used for deep purification of chromium solution, such as iron, aluminum, vanadium and other impurities in the solution; After the deep purification of chromium solution, then adjusting the pH, adding appropriate hydrating agent, by hydrothermal precipitation treatment of chrome, filtration, acid washing and calcination to obtain chromium oxide crystal. It achieves the purification of chromium, iron, aluminum and chromium. The recycling and comprehensive utilization of waste resources are also realized. The process is simple, the iron, aluminum, vanadium and other impurities are in the selective adsorption. Chromium solution after deep purification can be processed for high purity chromium products to provide technical support.
-
2.发明申请公开(公告)号：US20180291266A1
公开(公告)日：2018-10-11
申请号：US15766187
申请日：2017-02-24
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Wei MA , Fanqing MENG , Liyan GUO , Lei WU , Shibo DUAN , Zhen CHEN , Shuangen YU , Ren WANG , Jun XU
Abstract: The present invention relates to the technology of material surface modification and the preparation adsorption new material, which involves the preparation of CQDs and the application of CQDs on modifying water purification function material. Firstly, the CQDs with rich functional groups and specific graphene structure has been prepared based on the low-cost biomass. Then, modified the traditional adsorbent by prepared CQDs under the in situ synthesis process. Secondly, synthesis the CQDs basic on the organic waste-water under low-temperature hydrothermal treatment process. Then, prepared the CQDs modified water purification material by collecting the CQDs under the flocculation process. This invention can be used in the widely used in the field of modification and preparation of functional materials, because of it not only gives a new method to synthesis low-cost and high performance water purification material, but also provide a new idea to treat high toxicity and refractory organic waste-water.
-
Search Results
2
records
(took 0.011 seconds)
