5 results about "Potassium methoxide" patented technology

The application discloses a kind of eluent and its preparation method and application, preparation method includes: adding potassium methoxide methanol solution to the trimethylolpropane in molten state, after stirring, vacuumizing, then droping glycidol monomer, after reaction, add methanol, dry, obtain hyperbranched polyglycerol ether;Add carbonyl imidazole to the N,N-dimethylformamide solution of saturated fatty acid, after stirring and mixing, drop to the N,N-dimethylformamide solution of hyperbranched polyglycerol ether, reaction is heated in nitrogen atmosphere, after reaction, the product is treated, obtain temperature-sensitive hyperbranched polyglycidol ether eluent.The eluent prepared in the application can greatly reduce the treatment cost of elution waste liquid while efficiently removing heavy metals.

The invention discloses a supported bimetallic complex catalyst for synthesizing isovanillin and a preparation method and application thereof.The catalyst is composed of an inorganic porous carrier and an active component supported on the inorganic porous carrier, and the active component is a bimetallic complex formed by Cu, Co and 1, 10-phenanthroline; the inorganic porous carrier is an SBA-15 molecular sieve or amino-modified Fe3O4 (at) SiO2 magnetic nanoparticles with a core-shell structure. The catalyst is prepared from a metal salt, a ligand and a carrier in a solvent through a coordination-loading one-step method. The catalyst disclosed by the invention is applied to one-step synthesis reaction of isovanillin by taking heliotropin and sodium methoxide or potassium methoxide as raw materials, and shows extremely high catalytic activity and product selectivity (yield gt; and by virtue of the load-type characteristic, especially the application of the magnetic carrier, rapid magnetic separation and recovery and repeated recycling can be realized, so that the catalyst is obviously superior to a traditional homogeneous copper chloride catalytic system, and has the potential of simple steps, environment friendliness and suitability for industrial production.

This invention belongs to the fields of chemical engineering and energy conservation, and discloses an energy-saving device and method for producing potassium methoxide using a thermally coupled alkaline process. The energy-saving device for producing potassium methoxide using a thermally coupled alkaline process includes: a reaction system, a distillation system, and a recovery system; the reaction system includes a reaction tower; the distillation system includes a distillation tower, a dehydrator, a first compressor, a second compressor, a falling film reboiler, and a distillation condenser; the recovery system includes a primary feed preheater, a secondary feed preheater, a first recovery tower condenser, a first recovery tower, a first recovery tower falling film reboiler, a second recovery tower, a second recovery tower falling film reboiler, a third recovery tower, and a third recovery tower reboiler. This invention discloses a method for producing potassium methoxide using an alkaline process based on the aforementioned energy-saving device for producing potassium methoxide using a thermally coupled alkaline process. This invention utilizes the heat from the product in the reaction tower bottom and the heat from the recovery system to thermally couple with the feed stream, saving energy consumption of steam in the reaction tower bottom and the amount of circulating water used.

The invention discloses a plant polyphenol-based fixing agent and a preparation method and application thereof, and relates to the technical field of drilling solid waste treatment.The plant polyphenol-based fixing agent is obtained by uniformly mixing plant polyphenol with a catalyst and then adding phenyl-containing diglycidyl ether for a reaction, the plant polyphenol contains one or more benzene ring structures and has phenolic hydroxyl functional groups; the catalyst is one or more of sodium methoxide, potassium methoxide, sodium ethoxide and potassium ethoxide, and the addition amount of the catalyst is 1-5wt% of the total mass of the plant polyphenol and the phenyl-containing diglycidyl ether; the mass ratio of the plant polyphenol to the phenyl-containing diglycidyl ether is (2-10): 1. The technical problems that in the prior art, drilling solid waste treatment is high in cost, long in period, short in fixing time, high in leachate pollutant content and the like are solved.

The invention belongs to the field of chemical engineering and energy conservation, and discloses an energy-saving device and method for producing potassium methoxide by a thermal coupling alkaline method. An energy-saving device for producing potassium methoxide by a thermal coupling alkaline method comprises a reaction system, a rectification system and a recovery system, the reaction system comprises a reaction tower; the rectification system comprises a rectification tower, a dehydrator, a first compressor, a second compressor, a rectification falling film reboiler and a rectification condenser; the recovery system comprises a raw material primary preheater, a raw material secondary preheater, a first recovery tower condenser, a first recovery tower, a first recovery tower falling film reboiler, a second recovery tower, a second recovery tower falling film reboiler, a third recovery tower and a third recovery tower reboiler. The invention discloses a method for producing potassium methoxide by an alkaline process based on the thermal coupling alkaline process potassium methoxide production energy-saving device. The reaction tower kettle product and the heat of the recovery system are thermally coupled with the feeding material flow, so that the steam energy consumption and the circulating water consumption of the reaction tower kettle are reduced.