40results about How to "Process energy consumption is low" patented technology

The invention discloses a method for preparing a Chinese medicinal composition for preventing and treating menoxenia. The method comprises the following steps of: preparing a certain amount of certain raw material medicaments (motherwort, nutgrass galingale rhizome, beautiful sweetgum fruit, Szechuan lovage rhizome and cowherb seed) into water-extracted thin extract by adopting water extraction and concentration or water-extracted alcohol-precipitated thin extract by adopting water extraction and alcohol precipitation; then putting dextrin or starch and the like serving as substrates into a one-step granulator, and spraying the water-extracted thin extract or the water-extracted alcohol-precipitated thin extract serving as adhesive into the one-step granulator to perform one-step granulation; and finally, reshaping the granules, and adding other auxiliary materials to prepare a Chinese medicinal preparation for oral administration. The method can obviously reduce the amount of the auxiliary materials, shorten the processing, concentration, drying and heating time and avoid destroying effective ingredients of the Chinese medicinal composition; the prepared granules have good fluidity, and the pressed tablets are quicker to disintegrate; and the process flow is simplified, the energy consumption is reduced, the production process is not easily polluted, and the quality of the finished product is well guaranteed.

The invention relates to a process of extracting zinc from dedusting ash of a blast furnace, and belongs to the technical field of comprehensive utilization of metallurgic solid wastes. The process comprises the steps of a ball milling process, a magnetic separation process, a flotation process, a filter pressing process, a waste water recovery process, a caustic soda flake leaching process and electrolysis. In the caustic soda flake leaching process, sodium hydroxide is firstly added in tailing slag for filter pressing; then, sodium sulfide is added in filtrate for filter pressing again; and bone glue or potassium alkyl diphenyl ether sulfonate is added in the filtrate for electrolysis. The process can effectively extract zinc elements from the dedusting ash of the blast furnace through the caustic soda flake leaching process; and the whole process is low in energy consumption, environment-friendly and high in recovery rate of zinc.

The invention belongs to the technical field of chemical engineering and discloses a new process for preparing sodium thiocyanate. The new process for preparing sodium thiocyanate comprises that coked gas PDS process desulphurized mixed salt is taken as a raw material, firstly sodium thiocyanate inside the raw material is extracted with methyl alcohol, then filter pressing is carried out, so that sodium thiocyanate filtrate is obtained, and finally evaporation concentration, cooling crystallization and centrifugal drying are carried out, so that sodium thiocyanate crystals are obtained. Sodium thiocyanate prepared by adopting the new process disclosed by the invention has high purity and good market prospect, desulphurization waste is effectively utilized, a waste material is changed into things of value, industrial raw material cost is greatly reduced, and occupying area is also reduced to some extent, so that an enterprise can make up the deficits and get surpluses.

The invention discloses a method for preparing sodium thiocyanate by using desulphurization waste liquid of coke oven gas, and belongs to the technical field of utilization of desulphurization waste liquid of the coke oven gas. The method comprises the following steps: using the desulphurization waste liquid of the coke oven gas as a raw material, firstly, filtering the waste liquid in vacuum, using tributyl phosphate to extract thiocyanate radicals in the waste liquid, then using sodium hydroxide solution to back-extract the extract, and finally concentrating and crystallizing the extract, and washing and drying the crystals to obtain sodium thiocyanate crystals. The method uses the desulphurization waste liquid of the coke oven gas to prepare a sodium thiocyanate product with the purityas high as 93 to 95 percent so as to change waste into valuable and makes full use of waste resources; and the method is simple, saves energy, has no three-waste discharge, is favorable for environmental protection, has low production cost and good economic benefit, and develops a new path for the utilization of the desulphurization waste liquid resources of the coke oven gas. The sodium thiocyanate product prepared by the method can be widely applied in the industries of medicaments, textile, printing and dyeing, pesticide, chemistry and the like.

The invention discloses a treatment method of electroplating effluent containing heavy metal ions. The method comprises the following steps: firstly, performing standing pretreatment on the electroplating effluent, performing filtration, adding a flocculant and a coagulant aid, performing coagulation and sedimentation for 1-1.5h, adding filtered effluent to an adsorption tank, adding nanometer particles of which nuclear cores are made from Fe3O4 and shell layers are made from SiO2 to serve as an adsorbent, wherein the shell layer edges of nuclear shell structure granules are modified with an aza-macrocyclic carboxylic acid derivative derivative, performing adsorption treatment for 2-6h, then performing filtration, and adding the obtained filtrate to a post-treatment system or a water recovery tank. According to the method, the heavy metal ions in electroplating effluent can be effectively removed, and the method is low in treatment cost, energy-saving and environmentally friendly.

The invention discloses an efficient method for preparing nitrous oxide. The method comprises the step of reacting by taking NH3, O2 and NO as raw material gas, taking CeO2 or TiO2 as a catalyst carrier and taking palladium, platinum, gold and nickel or several alloy thereof as active components of a catalyst. The catalyst effects of the palladium, the platinum, the gold and the nickel or the alloy thereof and the cocatalysis effect of rare earth oxides CeO2 and TiO2 are fully utilized, and a small amount of NO is added in the raw material gas to remarkably increase the percent conversion of the nitrous oxide. The catalyst is prepared simply and is easy to operate, requirements for equipment are low, energy consumption of a process is low, and the nitrous oxide is easily industrially produced on a large scale. Particularly, when Pt-Ni / TiO2 is selected as a catalyst, the percent conversion can reach up to 88%, and a new thought is provided for synthesis of the nitrous oxide.

The invention discloses a novel energy-saving and environment-friendly phase-change energy storage wall panel and a preparation method thereof. The structure of the wall panel consists of hydrophobic and moisture-proof non-woven fabric, water-blocking adhesive film, and phase-change GMT core from the wall surface to the outside. layer, hot-melt adhesive film, adhesive non-woven fabric, hot-melt adhesive layer and decorative fabric layer, wherein the phase-change GMT core layer contains at least two or more composite phase-change energy storage materials. The invention adjusts the ratio of phase change energy storage materials with different phase transition temperatures according to local conditions, and evenly adds them to the wall panel, so that it can adapt to the climate difference between the north and the south and the temperature difference between winter and summer, and intelligently control the indoor temperature, so as to achieve high efficiency. energy saving and environmental protection functions.