37results about How to "Shorten process operation time" patented technology

The invention discloses a continuous ion exchanging device for extracting lithium and a lithium extraction process. The continuous ion exchanging device for extracting lithium comprises a running base and a plurality of adsorbing columns; the running base comprises an adsorption region, a drip washing region and a desorption region; the plurality of adsorbing columns are arranged on the running base and are distributed in the adsorption region, the drip washing region and the desorption region; the adsorbing columns in the adsorption region communicate with a raw material liquid charging pipe; the adsorbing columns in the drip washing region communicate with a drip washing liquid charging pipe; the adsorbing columns in the desorption region communicate with a desorption liquid charging pipe; and the positions of the absorption region, the drip washing region and the desorption region on the running base are successively replaced. The lithium extraction process adopts the continuous ion exchanging device; with the passage of time and the operation of the running base, the absorption region, the drip washing region and the desorption region on the running base separately implement adsorption operation, drip washing operation and desorption operation; all regions are continuously and alternately replaced so that the overall lithium extraction operation can be quickly and continuously implemented, and thus the lithium extraction efficiency and the comprehensive development and utilization efficiency of resources are improved.

The invention discloses a manufacturing method of an ice bag for preserving biological products. The manufacturing method comprises the following steps: 1) adding a thickener into hot water or boiling water, and fully stirring till dissolution; 2) adding high molecular water-absorbing resin into a solution in the step 1) while hot, stirring, then standing to carry out full reaction and imbibition on the high molecular water-absorbing resin and the thickener, and forming a gelatinous solid, wherein the reaction time is 5-30minutes; and 3) bagging the gelatinous solid in the step 2), cooling, and then placing into a cold storage, a refrigerating cabinet or a refrigerator at the temperature of -10 DEG C to -20 DEG C for freezing for above 12hours. The invention provides a simple, convenient and high-efficient manufacturing method of a high molecular cold storage agent, namely the manufacturing method of the ice bag for preserving the biological products. The prepared cold storage agent has the advantages of high repeatability, great freezing-thawing phase change latent heat, long cold storage time and fast water absorption speed, and furthermore, the cost of the process is low; and by changing the added thickener, the different phase change temperatures can be obtained for meeting various different application requirements.

The invention belongs to the technical fields of environment and materials and relates to a process method for preparing an aluminum-silicon solution by taking smelting slags of laterite-nickel ores as raw materials. The process method comprises the following steps: performing alkali fusion on metallurgy waste residues of the laterite-nickel ores, intensifying a water logging process with ultrasound and adding Al(OH)3 as an aluminum source for adjusting the silicon-aluminum molar ratio to obtain a water-slag mixed crude aluminum-silicon dissolution solution; performing extraction filtration and liquid-solid separation to obtain the aluminum-silicon solution and solid-state filter residues at a certain molar ratio respectively. The process method has the benefits that the recovery rates ofSi and Al are increased by 44% and 65% respectively, and the particle size of filter residue particles treated by the ultrasound is smaller than that of the particles that are not treated by the ultrasound and are stirred mechanically, so that valuable metals, namely aluminum and silicon, in the laterite-nickel ores can be fully dissolved out and recycled; through independent or combined use of the ultrasound and the intensifying of the water logging process with the ultrasound, and a method for adjusting the silicon-aluminum molar ratio in the solution by effectively utilizing a low-valence aluminum source, the resources of the metallurgy waste residues of the laterite-nickel ores are utilized efficiently at low cost, the harm to the ecological environment is reduced, and the economic andenvironmental benefits of a process technology of comprehensive utilization of the metallurgy waste residues of the laterite-nickel ores are improved.

The invention relates to a preparation method of a white fabric. The method is characterized by oxygen bleaching and whitening a fabric containing cotton, and comprises the steps of adding a one-bath-one-step method bleaching solution (prepared from 1 to 2g / L of penetrating agent, 1 to 2g / L of anti-creasing agent, 2 to 7 percent (owf) of scutching agent, 2 to 9 percent (owf) of 40 percent by weight caustic soda solution, and 3 to 6 percent (owf) of 30 percent by weight hydrogen peroxide solution) with pH being 10 to 11 into the fabric for oxygen bleaching, then adding a fluorescent whitening agent for whitening, heating at a constant heating rate to 80 to 90 DEG C, carrying out insulation treatment, and cleaning, neutralizing and setting to obtain the white fabric. According to the method,a step of removing hydrogen peroxide is saved, so that the process time can be greatly saved, the water consumption is reduced, and the emission of noxious substances is reduced; the prepared white fabric is free of acidity and less in storage color change, and has a pH value stabilized in an acceptability limit from 5.5 to 7.0, and the whiteness improved by 1 to 2 or more compared with a traditional process; when preparing the white fabric with the same whiteness, the dosage of the fluorescent whitening agent can be saved by 10 to 40 percent, so that the economic benefits of enterprises canbe greatly improved.

The invention relates to casting process, in particular to a process method for producing large size sculpture through resin sand removable-flask moulding. The method comprises the following technological processes: model receiving, cutting, strengthening, model placing and gating system designing, netty steel frame welding, modeling, mode dissembling, mold assembling, strengthening, pouring, sand cleaning and the like. The method is mainly characterized in that steel frames with different sizes are welded according to the sizes of casting models, and the profile-followed steel frames can be welded according to the different shapes of casting models, so that the steel frames can be reused, and the consumption of resin sand can be greatly reduced during modeling due to the welded profile-followed steel frames; the layer surface of sand is thinner, and the operation time of the whole process is shortened, so that the raw materials are saved, the production efficiency is improved, and the whole production cost is greatly reduced.