34results about How to "Easy to get in the market" patented technology

The invention relates to a series of ceramic materials used as high temperature thermal barrier coating materials and their use, wherein the chemical constitution of the ceramic material being A2ZrxCe(1-x)2O7, wherein 0<=x<=0.9, an is one or combination of two of Nd, Sm, Eu, Gd and Tb. The ceramic material has high coefficient of thermal expansion, thus can be designed into thermal barrier coating material, whose application temperature interval is between room temperature to 1400 deg. C.

The invention discloses a method and dedicated device for lithium hexafluorophosphate synthesis tail gas treatment. Tail gas is pressurized through a booster fan and then sent to a condenser, condensate is recycled to an anhydrous hydrogen fluoride reception tank, mixed gas discharged from the condenser passes through an airtight first-stage agitation reactor, a horizontal auger delivery reactor and a second-stage agitation reactor in sequence in the material stirring and guiding direction, a trace of HF in the mixed gas reacts with LiCl powder added into an agitation reaction combined device in advance, and LiCl powder in the second-stage agitation reactor returns into the first-stage agitation reactor through a material balance pipe to be forced to be stirred and circulated inside an agitation reaction system; tail gas discharged from the second-stage agitation reactor enters a water scrubber to generate hydrochloric acid after passing through a dust remover for gas trapping so that a small amount of powder can be taken away, and gas discharged from the water scrubber passes through an alkaline tower for alkaline washing and then is discharged. By the adoption of the method and dedicated device, HF in the mixed tail gas can be effectively removed, the quality of by-product hydrochloric acid is improved, and the application field is broadened.

The invention provides an octahydro-1H-pyrrolo[2, 3-c]pyridine derivative shown as formula (I), an octahydro-1H-pyrrolo[3, 2-c]pyridine derivative shown as formula (II) and preparation methods thereof. Specifically, R1 is hydrogen, alkyl of C1-C9, benzyl, or R4C(O)-, R4 is alkyl of C1-C9, R5O-, aryl, benzyl or substituted benzyl, R5 is alkyl of C1-C9, aryl, benzyl or substituted benzyl; R2 is hydrogen, alkyl of C1-C9, benzyl or R6C(O)-, R6 is alkyl of C1-C9, R7O-, aryl, benzyl or substituted benzyl, R7 is alkyl of C1-C9, aryl, benzyl or substituted benzyl, R3 is COOR8, and R8 is hydrogen, alkyl of C1-C9, benzyl or substituted benzyl. The preparation method is novel, and especially realizes the efficient conversion process from the cyano group to a pyrrolidine structure in one step. The raw materials and ragenets are easily available and cheap, the reaction conditions are mild, the operation is simple, and the generated octahydro-1H-pyrrolo[2, 3-c]pyridine derivative and the octahydro-1H-pyrrolo[3, 2-c]pyridine derivative, especially derivatives with carboxyl or ester, can be used as an important intermediate of new drug research and development due to a rigid-cyclo structure of a trifunctional group. (formula (I) and formula (II)).

The invention discloses a method for synthesizing a Vandetanib compound. A compound I is adopted as an initial raw material, condensation, nitration, hydrogenation and reduction, addition, oxidation, hydrolysis and addition reactions are carried out, and the Vandetanib compound is prepared. According to the method for synthesizing the Vandetanib compound, the initial raw material is simple, cheap and easy to obtain, and compared with an existing route that loop closing and chlorination are carried out in sequence, and finally ammoniation is carried out, steps are reduced, the yield is increased, the reaction process is easy to operate, and the preparation period is short. Meanwhile, use of phosphorus trichloride or phosphorus pentachloride or thionyl chloride or phosgene or phosphorus oxychloride or other chlorinating agents with corrosivity is avoided, and the method is suitable for industrial production.

The invention belongs to the field of functional rare earth fluorescent materials, and particularly relates to a rare earth supramolecular gel luminescent material as well as preparation and application thereof. An organic ligand and rare earth ions are combined and self-assembled to form the rare earth supramolecular gel luminescent material by using pi-pi interaction and hydrogen bonding of theorganic ligand molecule and coordination of the organic ligand with rare earth ions in a rare earth salt under heating conditions, wherein 5,5',5''-(1,3,5-triazin-2,4,6-triimino)-triisophthalic acid is used as the organic ligand. The formed gel has rare earth special light emission, good fluorescence monochromaticity and a high quantum yield; the rare earth supramolecular gel provided by the invention can still maintain stable light emission under heating or refrigeration (0-90 DEG C), mechanical force or water molecule stimulation; and the rare earth supramolecular gel provided by the invention can simply, quickly and accurately detect sialic acid in an aqueous phase, and has the advantages of good selectivity, high sensitivity, and low detection limit.

The invention discloses a method for preparing a silicon fertilizer and relates to preparation methods for silicon fertilizers. The method is used for solving the present problem that solid silicon fertilizers are low in available silicon content and poor in crop absorption effect and can harden land in long-time use and liquid silicon fertilizers are expensive. The method comprises the steps: (1) mixing a thickener with purified water, so as to obtain colloid; (2) mixing a penetrant, nano-scale silicon dioxide and an adsorbent, so as to obtain treated silicon dioxide; and (3) mixing the treated silicon dioxide with the colloid, thereby preparing the silicon fertilizer. The silicon fertilizer prepared by the method is a liquid-state silicon fertilizer, is free of any toxic and harmful ion is high in available silicon content and good in crop absorption effect and cannot harden the land in long-time use. According to the method, raw and auxiliary materials for preparing the silicon fertilizer are all non-toxic, harmless and environment-friendly, so that the silicon fertilizer meets the requirements of green agriculture on planting; the price of the product is cheap and reasonable; and the method for preparing the silicon fertilizer, disclosed by the invention, is scientific, simple and convenient, does not need high pressures and high temperatures and is free of the emission of waste gases, waste water and waste residues during production, so that the silicon fertilizer belongs to environment-friendly products.