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68results about How to "Reduce waste generation" patented technology

Acidolysis and solvent recycling process and device for producing glyphosate by using glycine method

The invention relates to an acidolysis and solvent recycling process for producing glyphosate by using a glycine method, and belongs to the technical field of glyphosate production processes and methods. The acidolysis and solvent recycling process comprises steps of pretreatment for removing methanol from a synthetic liquid, acid methanol acidolysis, hydrochloric acid acidolysis, solvent recycling and the like. Acid methanol is adopted to replace hydrochloric acid for acidolysis of the synthetic liquid, and a small amount of hydrochloric acid is additionally supplied to stabilize the high-temperature acidolysis process in a later acidolysis period; in the acidolysis process, methylal is separated from a methylal and methanol solution through rectification, a small amount of methanol is replenished into the residual methanol solution which is cooled so as to blend the content of the methanol, the solution can be directly used for absorbing a hydrogen chloride gas, acid methanol can be generated after set contents of hydrogen chloride and methanol are met, and the acid methanol canbe fed back to the acidolysis process for reuse. Compared with a conventional glyphosate acidolysis and solvent recycling technique with a glycine method, the acidolysis and solvent recycling process has the advantages that the methanol recycling wastewater can be reduced by 2.5 t/t or greater, the mother liquid amount can be reduced by 0.3 t/t or greater, the steam consumption can be reduced by 1.5 t/t or greater, the power can be saved by 80 KWh/t or greater, the content of chloromethane can be increased by 0.3 t/t, the yield of glyphosate is increased by 0.3% or greater, and the production cost of the glyphosate can be lowered by 15-20%.
Owner:HUBEI TAISHENG CHEM

Cleaning system utilizing an organic cleaning solvent and a pressurized fluid solvent

A cleaning system that utilizes an organic cleaning solvent and pressurized fluid solvent is disclosed. The system has no conventional evaporative hot air drying cycle. Instead, the system utilizes the solubility of the organic solvent in pressurized fluid solvent as well as the physical properties of pressurized fluid solvent. After an organic solvent cleaning cycle, the solvent is extracted from the textiles at high speed in a rotating drum in the same way conventional solvents are extracted from textiles in conventional evaporative hot air dry cleaning machines. Instead of proceeding to a conventional drying cycle, the extracted textiles are then immersed in pressurized fluid solvent to extract the residual organic solvent from the textiles. This is possible because the organic solvent is soluble in pressurized fluid solvent. After the textiles are immersed in pressurized fluid solvent, pressurized fluid solvent is pumped from the drum. Finally, the drum is de-pressurized to atmospheric pressure to evaporate any remaining pressurized fluid solvent, yielding clean, solvent free textiles. The organic solvent is preferably selected from terpenes, halohydrocarbons, certain glycol ethers, polyols, ethers, esters of glycol ethers, esters of fatty acids and other long chain carboxylic acids, fatty alcohols and other long-chain alcohols, short-chain alcohols, polar aprotic solvents, siloxanes, hydrofluoroethers, dibasic esters, and aliphatic hydrocarbons solvents or similar solvents or mixtures of such solvents and the pressurized fluid solvent is preferably densified carbon dioxide.
Owner:EMINENT TECHNOLOGY

Titanium and aluminum riveted metal intermediate frame and electronic equipment

The invention relates to a titanium and aluminum riveted metal intermediate frame. The titanium and aluminum riveted metal intermediate frame comprises an intermediate plate and an edge frame, whereinthe edge frame is riveted on the intermediate plate, the intermediate plate is made of an aluminum alloy material, a convex edge is arranged at circumferential edge of the intermediate plate in a protruding way, the edge frame comprises a plurality of members, the plurality of members are sequentially connected in an end-to-end way, each member is made of a titanium alloy material, the hardness of the member is larger than the hardness of the intermediate plate, the members are all riveted at the circumferential edge of the intermediate plate, a clamping groove is formed in an inner side of each member and is connected with the convex edge, the intermediate plate is deformed by laminating an outer side surface of the edge frame so as to achieve riveting between the convex edge and the clamping grooves. Meanwhile, the invention also provides electronic equipment comprising the titanium and aluminum riveted metal intermediate frame. The titanium and aluminum riveted metal intermediate frame has the beneficial effects that the intermediate plate made of titanium alloy and the edge frame made of titanium alloy are riveted by lamination and deformation, the production efficiency is improved, and the manufacturing cost is favorably reduced.
Owner:GUANGDONG EVERWIN PRECISION TECH

Discrete resin bonding and forming protective material and preparation method thereof

ActiveCN110978541AReduce cutting and cutting processReduce waste generationMetal meshPolymer chemistry
The invention relates to a discrete resin bonding and forming protective material and a preparation method thereof. The preparation method comprises the following steps that S1, resin particles are uniformly distributed in a forming mold of a flat plate shape; S2, a metal frame with a metal mesh bottom surface is placed on the forming mold in the S1, the metal frame is turned over by using a turnover device, and the resin particles which are distributed are moved into the metal frame; S3, a binder is uniformly sprayed on the resin particles in the metal frame in the S2, and heating and pre-curing are conducted; and S4, base cloth fabric is laid on the surface of the metal frame in the S3, heating and curing are conducted, the base cloth fabric is taken out from the metal frame, and the discrete resin bonding and forming protective material is obtained. According to the discrete resin bonding and forming protective material and the preparation method thereof, a discrete resin bonding and forming process is adopted, it is guaranteed that gaps among the resin particles are clear, and the soft and breathable performance is excellent; and the flat plate forming mold can be customized for production according to customer requirements, a clipping and cutting procedure of the protective material are reduced, and the production efficiency of a terminal wearing protective product is improved.
Owner:上海固甲新材料科技有限公司
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