6results about How to "High metal content" patented technology

The invention discloses a titanium metallocene compound with limited geometric configuration and a preparation method and application thereof, the titanium metallocene compound with limited geometric configuration is a compound with a general formula (I): wherein R1, R2, R3 and R4 are the same or different and are respectively and independently selected from alkyl; r is selected from one of fluoro, methoxyl, methyl, tert-butyl and-H; and n is 1 or 0. The titanium metallocene compound with the limited geometric configuration has better catalytic activity, and prepared polypropylene is high in melt index and good in fluidity. The titanium metallocene compound with the limited geometric configuration is synthesized from different amido groups, the optimization of the whole synthesis route is completed, the problem of monosubstitution in silicon bridging reaction is solved, and the whole process has high yield. The raw materials are easy to obtain and low in cost, and technological production is easy to realize.

This utility model discloses a waste catalyst resource utilization system, comprising a waste catalyst storage tank, an electromagnetic powder separator, a silica storage tank, a mixer, a fluidized bed, a nitrogen pipeline, and a hydrogen chloride pipeline. The outlet of the waste catalyst storage tank is connected to the inlet of the electromagnetic powder separator; the outlets of both the electromagnetic powder separator and the silica storage tank are connected to the inlet of the mixer; the outlet of the mixer is connected to the inlet of the fluidized bed; and the outlets of the nitrogen and hydrogen chloride pipelines are connected to the inlet of the fluidized bed. The advantages of this utility model are: its simple connection structure is easy to implement, effectively reacting the silica powder in the waste catalyst to generate trichlorosilane, silicon tetrachloride, and other materials for the production of silica, thus fully utilizing the silica powder in the waste catalyst; the copper and other metal content in the remaining waste catalyst is significantly increased, allowing it to be used as a copper extraction raw material for direct sale, avoiding the generation of large amounts of industrial wastewater and increasing the economic benefits for enterprises.

The invention discloses a method for resource treatment of nitric acid tin stripping waste liquid. The method comprises the following steps: adding sulfuric acid and ferric sulfate to the nitric acid tin stripping waste liquid, then distilling to form a light component nitric acid and a heavy component, performing solid-liquid separation on the heavy component to form a supernatant solution and a precipitate; the supernatant solution is used to recover elemental copper, tin mud and sodium sulfate; the precipitate is used to recover elemental copper, tin mud and ammonium sulfate crystals; in the nitric acid distillation process of the invention, sulfuric acid + ferric sulfate are added to form an iron-ammonium alum-like precipitate, thereby realizing the removal of ammonia nitrogen in the distillation process, thereby realizing the safety and controllability of the nitric acid distillation process.

The application discloses a catalytic hydrogenation method of carbon nine resin, and is characterized in that the method comprises the following steps: (1) placing a Pd-W-Yb / silica gel-activated carbon co-precipitation catalyst in the front half of a fixed bed, placing a Co-Ru-Yb / silica gel co-precipitation catalyst in the rear half of the fixed bed, and reducing by hydrogen; (2) catalytically hydrogenating pretreated carbon nine resin in the fixed bed. Compared with the prior art, the catalytic hydrogenation method of carbon nine resin has high catalytic efficiency and simple process, and the catalytic hydrogenation method can obtain a product with good colority and low bromine value.

The invention discloses a high-entropy Prussian blue analogue and a preparation method and application thereof, and relates to the technical field of solid propellants, the high-entropy Prussian blue analogue comprises at least five of Fe, Co, Zn, Ni, Cu and Mn, and the high-entropy Prussian blue analogue is a solid cubic particle. The high-entropy Prussian blue analogue prepared by the preparation method disclosed by the invention is richer in catalytic active center, has the characteristics of stable catalytic process and catalysis sustainability, can enable the decomposition peak of AP to tend to be gentle, enables the decomposition behavior to be close to constant-speed decomposition, and improves the catalytic efficiency of AP.

The invention belongs to the technical field of petrochemical engineering, and particularly relates to petroleum coke special for a prebaked anode produced by taking high-sulfur high-acid crude oil as a raw material and a preparation method of the petroleum coke. According to the preparation method of the special petroleum coke for the prebaked anode, high-sulfur and high-metal crude oil is taken as a raw material, vacuum residue is prepared through reduced pressure distillation, then the high-sulfur and high-metal vacuum residue is treated by using a demetallization agent, and then the vacuum residue is subjected to mild hydrotreatment, so that a petroleum coke product with low metal content and sulfur content can be finally obtained. According to the preparation method of the special petroleum coke for the prebaked anode, the special petroleum coke for the high-end prebaked anode can be produced by utilizing inferior crude oil, so that the production raw material source of the petroleum coke is expanded, and the additional value of inferior ethylene tar is increased.