Abstract: The present invention provides an N,N-dihydrocarbonyl amide carboxylic acid, preparation method therefor and use thereof. The N,N-dihydrocarbonyl amide carboxylic acid can be used as an extractant for enriching rare earth elements from raw materials containing low-concentration rare earth elements, separating and purifying yttrium element from mixed rare earth raw material, and separating elements such as aluminum, iron, radioactive thorium, radioactive uranium and actinide from mixed rare earth raw material, etc. The compound can be synthesized in a simple and cost-efficient way. As an extractant, it has good chemical stability and can withstand strong acid and strong alkali without decomposition.

Abstract: The present application provides an N,N-dihydrocarbonyl amino carboxylic acid, preparation method therefor and use thereof. The N,N-dihydrocarbonyl amino carboxylic acid can be used as an extractant for enriching rare earth elements from raw materials containing low-concentration rare earth elements, separating and purifying yttrium element from a mixed rare earth raw material, and separating elements such as aluminum, iron, radioactive thorium, radioactive uranium and actinide from a mixed rare earth raw material, etc. The compound can be synthesized in a simple and cost-efficient way. As an extractant, it has good chemical stability and has good resistance against strong acid and strong alkali without decomposition.

Abstract: Disclosed are a method, apparatus, device and system for processing commodity transaction, and a storage medium. The method includes: acquiring a commodity order of a user from an E-commerce platform; generating a manufacturing order according to the commodity order, and providing the manufacturing order to a manufacturer to enable the manufacturer to produce a commodity on the basis of the manufacturing order; and providing a production progress and/or a delivery progress of the commodity to a user.

Abstract: Disclosed are a commodity customization method, apparatus and device, and a storage medium. The method includes: receiving a commodity creating request of a first user and providing a created commodity editing interface; creating a target customizable commodity according to basic information and customizable component information configured by the first user; and sending relevant information about the target customizable commodity to an E-commerce platform server for publishment.

Abstract: Disclosed are a method, apparatus, device and system for processing commodity transaction, and a storage medium. The method includes: acquiring a commodity order of a user from an E-commerce platform; generating a manufacturing order according to the commodity order, and providing the manufacturing order to a manufacturer to enable the manufacturer to produce a commodity on the basis of the manufacturing order; and providing a production progress and/or a delivery progress of the commodity to a user.

Abstract: A method for recovering thorium and rare earth elements from rare earth waste residues includes the steps of (1) mixing rare earth waste residues with an inorganic acid and heating to obtain a stock solution containing thorium and rare earth elements; (2) extracting thorium and rare earth elements from the stock solution with an organic phase containing an extractant; (3) washing the organic phase obtained after extraction in step (2) with a washing solution to move rare earth elements into the aqueous phase and leave thorium in the organic phase; (4) back-extracting the organic phase containing thorium obtained in step (3) with a back-extraction solution to extract move thorium in the organic phase into the aqueous phase. The extractant contains alkyl phosphonic acid monoalkyl ester and dialkylphosphinic acid.

Abstract: An extractant and a method for the extraction and separation of yttrium are disclosed in the invention. Cations of said extractant are selected from the group of quaternary phosphonium or quaternary ammonium, and the anion is sec-octylphenoxy acetate. The extractant has a simple composition, the formulated organic phase has stable properties and can be recycling used without significantly decreased concentration. The present invention used a mixed organic phase consisting of an extractant and a diluent to extract a rare earth feed liquid containing yttrium, and then washed and back extracted it with deionized water so that the consumption of acid and alkali in all the processes of extraction, washing and back extraction was avoided. Therefore, the extraction is carried out under a low acidity and a high extraction efficiency was ensured. The organic phase can be recycling used without saponification, so that no ammonia wastewater was produced in the processes.

Abstract: A method for recovering thorium and rare earth elements from rare earth waste residues comprises: (1) mixing rare earth waste residues with an inorganic acid and heating to obtain a stock solution containing thorium and rare earth elements; (2) extracting thorium and rare earth elements from the stock solution with an organic phase containing an extractant; (3) washing the organic phase obtained after extraction in step (2) with a washing solution to move rare earth elements into the aqueous phase and remain thorium in the organic phase; (4) back-extracting the organic phase containing thorium obtained in step (3) with a back-extraction solution to move thorium in the organic phase into the aqueous phase; said extractants are alkyl phosphonic acid monoalkyl ester and dialkylphosphinic acid.

Abstract: A dispersed state monitoring device for distributed generation includes a power module, an input conditioning module, a data processing module and a network communication module which are connected one after another in this order. The power is input, via a civil plug and a 220V power socket, to the power module and the input conditioning module in the device at the same time. The power module ensures normal operation of the device through conditioning of a voltage. The input conditioning module is configured to condition input voltage signals, extract voltage transient-state and steady-state signals to be analyzed, and inputting the signals to the data processing module. The data processing module is configured to analyze the voltage transient-state and steady-state signals, judge the operating state of the distributed power source, and output a judging result to the network communication module. The result is output from the network communication module via a standard RJ45 Ethernet interface.

Abstract: An extractant and a method for the extraction and separation of yttrium are disclosed in the invention. Cations of said extractant are selected from the group of quaternary phosphonium or quaternary ammonium, and the anion is sec-octylphenoxy acetate. The extractant has a simple composition, the formulated organic phase has stable properties and can be recycling used without significantly decreased concentration. The present invention used a mixed organic phase consisting of an extractant and a diluent to extract a rare earth feed liquid containing yttrium, and then washed and back extracted it with deionized water so that the consumption of acid and alkali in all the processes of extraction, washing and back extraction was avoided. Therefore, the extraction is carried out under a low acidity and a high extraction efficiency was ensured. The organic phase can be recycling used without saponification, so that no ammonia wastewater was produced in the processes.

Abstract: The present invention relates to a process of separating and purifying thorium by solvent extraction, comprising: 1) mixing a thorium enrichment with an inorganic acid to produce a feed; 2) mixing a neutral phosphorus extractant with an organic solvent to obtain an organic phase; 3) extracting from the feed with the organic phase to obtain a loaded organic phase; 4) scrubbing the loaded organic phase with a scrubbing solution and then back-extracting thorium with a stripping solution to obtain a thorium solution; 5) mixing the thorium solution with an oxalate to obtain a precipitate, which is then sintered to obtain thorium oxide. The present process allows to increase the purity of thorium from 80%-99% to 99.99% or more with a yield of more than 98%.

Abstract: A dispersed state monitoring device for distributed generation includes a power module, an input conditioning module, a data processing module and a network communication module which are connected successively, wherein the power is input, via a civil plug and a 220V power socket, to the power module and the input conditioning module in the device at the same time. The power module ensures normal operation of the device through conditioning of a voltage. The input conditioning module is responsible for conditioning input voltage signals, extracting voltage transient-state and steady-state signals to be analyzed, and inputting the signals to the data processing module. The data processing module is responsible for analyzing the voltage transient-state and steady-state signals, judging the operating state of the distributed power source, and outputting a judging result to the network communication module. The result is output from the network communication module via a standard RJ45 Ethernet interface.