7 results about "Tribasic acid" patented technology

The invention discloses a preparation method and application of an organic acid and polyethylene glycol modified sodium-based beta-cyclodextrin metal organic framework, and belongs to the technical field of metal organic framework materials (MOF). The method comprises the following steps: firstly, preparing a Na-beta-CD-MOF (Na-beta-CD-MOF) by utilizing a methanol steam diffusion method or an ultrasonic-assisted synthesis method, and then carrying out crosslinking modification on the Na-beta-CD-MOF, organic acid (such as dibasic acid or tribasic acid as citric acid and malic acid) and polyethylene glycol (the molecular weight is 200-50000); the water stability, the pore structure and the adsorption performance on antibiotics and dye pollutants are obviously improved. The prepared organic acid and polyethylene glycol modified sodium-based beta-cyclodextrin metal organic framework has good biocompatibility and chemical stability, more adsorption sites are introduced, and pollutants such as ciprofloxacin hydrochloride, tetracycline hydrochloride and Congo red in wastewater can be efficiently removed. The method is green, environment-friendly, low in cost and simple and convenient to operate, and has a wide industrial application prospect.

The utility model discloses an electrolytic furnace for thermal decomposition of a ternary acid leaching solution, and relates to the technical field of lithium ion battery recovery. The electrolytic furnace for thermal decomposition of the ternary acid leachate comprises a furnace body, a nozzle and a plurality of electric heating pipes, and a discharge port is formed in the side wall of the furnace body; the nozzle is arranged at the bottom of the furnace body, the plurality of electric heating pipes are arranged in the furnace body above the nozzle, the plurality of electric heating pipes are arranged close to the inner wall of the furnace body, the plurality of electric heating pipes are annularly distributed, an inner surrounding area is defined by the plurality of electric heating pipes, and the inner surrounding area is arranged corresponding to the spray holes. According to the technical scheme, the electric heating pipe is adopted to generate heat, compared with the existing mode that natural gas serves as fuel to be incinerated to generate heat, the generation amount of pollutants can be effectively reduced, the device is more environment-friendly, the thermal decomposition effect on the ternary acid leaching liquid is better, the decomposition efficiency is high, and the product yield is effectively improved.

The invention relates to a semi-water-based cleaning agent for cleaning solder paste on the surface of a steel mesh. The cleaning agent disclosed by the invention contains one or more organic solvents of an alcohol ether solvent and olefin with a special structure; the surfactant is at least one of fatty alcohol polyoxyethylene ether, fatty acid dihydroxy amide and derivatives thereof, and polyoxyethylene sorbitan fatty acid ester; the dispersing chelating agent is at least one of sodium polyacrylate, sodium polyaspartate (PASP), maleic acid-acrylic acid copolymer sodium salt and the like; and the corrosion inhibitor is at least one of triethanolamine, sodium molybdate, tribasic acid, undecanedioic acid and the like. Through unique components and a high-efficiency cleaning mechanism, steel mesh solder paste residues are thoroughly removed, and meanwhile a base material cannot be corroded.

The invention relates to the technical field of ceramic substrates, and provides a surface treatment process of a multilayer ceramic substrate, which comprises the following steps: S1, punching a ceramic substrate, and carrying out polishing, acid pickling, annealing and post-treatment to obtain a pretreated ceramic substrate; s2, performing surface metallization treatment on the pretreated ceramic substrate to obtain a metallized ceramic substrate; s3, after the metallized ceramic substrate is subjected to lamination pressing, conduction cutting and sintering, a multilayer ceramic substrate is obtained; the acid pickling comprises the following steps: sequentially soaking the ground ceramic substrate in a monobasic acid aqueous solution, a binary acid aqueous solution and a ternary acid aqueous solution, and drying. According to the technical scheme, the problem that the yield of the multi-layer ceramic substrate is low in the prior art is solved.

This invention relates to the field of ceramic substrate technology and proposes a surface treatment process for multilayer ceramic substrates, comprising the following steps: S1, after drilling holes in the ceramic substrate, it is polished, acid-washed, annealed, and post-treated to obtain a pretreated ceramic substrate; S2, the pretreated ceramic substrate undergoes surface metallization treatment to obtain a metallized ceramic substrate; S3, the metallized ceramic substrate undergoes lamination, conductive cutting, and sintering to obtain a multilayer ceramic substrate; the acid washing includes the following steps: the polished ceramic substrate is sequentially immersed in a monobasic acid aqueous solution, a dibasic acid aqueous solution, and a tribasic acid aqueous solution, and then dried. This technical solution solves the problem of low yield of multilayer ceramic substrates in related technologies.

The invention relates to the technical field of cutting fluid, and discloses a preparation method of semi-synthetic cutting fluid for black metal, and the cutting fluid comprises the following components by weight: 10 parts of water; 8 parts of monoethanolamine; 4 parts of diethanol amine; 4 parts of boric acid; 2 parts of undecanedioic acid; 1 part of RL50 tribasic acid; 0.2 part of benzotriazole; 2 parts of glycerol; 20 parts of naphthenic oil; 3 parts of tetrameric ricinoleate; 3 parts of tall oil; 3 parts of fatty alcohol-polyoxyethylene ether; 0.8 part of fatty alcohol polyoxyethylene ether carboxylic acid; 0.5 part of phosphate ester; 0.5 part of 21 carbon dibasic acid; 3 parts of N, N '-methylene dimorpholine; 34.8 parts of deionized water; and 0.2 part of a three-dimensional siloxane defoaming agent. The anti-rust and anti-corrosion cutting fluid has excellent anti-rust and anti-corrosion performance, can effectively prevent a machine tool and a machined part from being rusted and has comprehensive antibacterial characteristics, and the product can be used for a long time and hardly has decay and stink phenomena.

The invention belongs to the technical field of nonmetal compounds, relates to preparation of cyclopropane compounds, and discloses a preparation method of kilogram-level high-purity hexacyclopropyl hexaazaisowurtzitane, which comprises the following steps: (1) adding cyclopropylamine into a solution of acetonitrile and water at-15 to-25 DEG C, and then dropwise adding a mixed solution of mixed acid and glyoxal; (2) after dropwise adding is finished, raising the temperature to room temperature and reacting for more than 18 hours; or after dropwise adding, carrying out gradient heating reaction for more than 18 hours; and (3) carrying out suction filtration, washing and drying to obtain a white pure solid product. According to the invention, a catalyst is changed into a dibasic acid or tribasic acid catalytic system, so that the use amount of cyclopropylamine is reduced, and the reaction time is shortened; by changing the feeding sequence, the whole dropwise adding process is stable and safe; the condensation reaction is carried out in a gradient heating mode, so that the process is stable, the process is safe, the yield and the purity are improved, and the method has obvious technical advantages.