14 results about "Process synthesis" patented technology

The invention discloses a silicon carbide nano material as well as a preparation method and application thereof, and belongs to the technical field of functional materials. The silicon carbide nano material is composed of silicon carbide nanowires and nano particles; the silicon carbide is composed of rhombohedral SiC and is of a single-crystal structure with the same crystal lattice direction. The diameter of the nanowire is 30-400 nm, and the length of the nanowire is larger than 10 microns. The preparation method of the silicon carbide nano electrode material comprises the following steps: mixing chicken manure, silica sol and distilled water, adding the mixture into a sealed container, keeping the temperature at 80-150 DEG C for 1-5 hours, cooling and drying to obtain a precursor of chicken manure silicon dioxide; the preparation method comprises the following steps: fully mixing a precursor of chicken manure silicon dioxide with calcium chloride and sodium chloride, then putting the mixture into a crucible, putting the crucible into a vacuum reaction furnace, and carrying out heat preservation for 1-3 hours at the temperature of 800-1000 DEG C under the protection of nitrogen, so as to obtain the silicon carbide nano material. The two-step synthesis process is adopted, the synthesis process is easy to control, and meanwhile agricultural organic waste is turned into wealth. As an electrode material, the prepared silicon carbide nano material has a good application prospect in the aspect of electrocatalytic detection of heavy metal ions.

The present invention provides a digital production management system for grain and oil, comprising: setting a production work order, a process material configuration module, a process operation equipment configuration module, a coding module, a process synchronization configuration module, a detection module, a fusion module, a process synthesis detection module, a nested plug-in, a production process card setting unit, an SN code configuration module, a loading detection module, and a unloading detection module. The whole process is completely digitally integrated from the formulation of the process flow, the use of process equipment, the input of materials, and the output of products, and multiple process flows are organically integrated for the production of different types of the same product.

The invention relates to the technical field of preparation of fine chemical additives, in particular to an alkynol modified organic silicon leveling agent material as well as a preparation method and application thereof. The alkynol modified organosilicon leveling agent material provided by the invention realizes the synergistic effect of four core functions: (1) the surface tension of the coating is obviously reduced to 22-25mN / m, and the surface defects such as shrinkage cavities and fisheyes are effectively eliminated; (2) through directional arrangement of polar groups in molecules, the wettability to base materials such as metal, plastic and wood is greatly improved; (3) flexible siloxane chain segments form directional arrangement on the surface of the coating, so that an excellent slipping effect is achieved; and (4) the defoaming and foam inhibition efficiency of the sample is properly improved. The process synthesis is realized through a one-pot reaction, the reaction time is shortened by 50% or above, complex post-treatment is not needed, the product yield reaches 95% or above, and the method is suitable for the high-end fields of industrial coatings, electronic packaging, automobile OEM and the like.

The utility model is applicable to the technical field of synthesis processing of hydrogen-bond organic frameworks (HOFs), and provides a device for synthesizing a porous material for capturing carbon dioxide, which comprises a synthesis box fixedly mounted on a mounting plate and used for synthesizing and processing the HOFs material for capturing carbon dioxide, the filter box is fixedly mounted on the mounting plate; the filter box is communicated with the synthesis box; and the filter screen is fixedly arranged in the filter box and is used for filtering HOFs crystals in a solution after the HOFs material synthesis reaction. According to the device for synthesizing the porous material for capturing the carbon dioxide, provided by the scheme, the HOFs material for capturing the carbon dioxide can be synthesized and processed, and the synthesized HOFs crystal can be directly filtered, so that a worker can conveniently treat the synthesized HOFs crystal, the overall complexity of synthesizing and manufacturing the HOFs material is reduced, and the production efficiency of the HOFs material is improved. And convenience is provided for work of workers.

The invention discloses a method for preparing ubenimex by an enzyme method, the enzyme is amido bond synthetase, and the amino acid sequence of the amido bond synthetase is shown as SEQ ID NO: 1. According to the method, (2S, 3R)-3-amino-2-hydroxy-4-phenylbutyric acid and L-leucine are taken as substrates, and the ubenimex is obtained through one-step reaction by an enzyme method. The enzymatic synthesis of the ubenimex is realized for the first time, and compared with the existing chemical synthesis process, the method has the advantages that the process synthesis route can be simplified, the production cost is low, the energy consumption is low, the method is green and environment-friendly, and a new way is provided for synthesis of the ubenimex.

A synthesis gas plant for producing a synthesis gas, where the synthesis gas plant includes a reforming section arranged to receive said feed gas and provide a combined synthesis gas, wherein said reforming section includes an electrically heated reforming reactor, a fired reforming reactor and an optional third reforming reactor. The reforming section is arranged to output a combined synthesis gas. An optional post processing unit downstream the reforming section is arranged to receive said combined synthesis gas stream and provide a post processed synthesis gas stream. A gas separation unit arranged to separate the combined synthesis gas stream or the post processed synthesis gas stream into a condensate, a product synthesis gas and an off-gas. At least a part of the off-gas is recycled from said gas separation unit to said one or more burners. Also, a process for producing synthesis gas from a feed gas comprising hydrocarbons.

The invention discloses a technological synthesis method of 6-(N-ethyl-4-toluidine)-2-methylfluorane, and relates to the technical field of organic synthesis. The method comprises the following four steps of: (1) reacting resorcinol as shown in a formula I and p-toluidine as shown in a formula II in an acid catalysis system and an organic solvent at 110-145 DEG C for 20-28 hours to obtain a formula III; (2) carrying out reductive amination on the compound shown in the formula III and a compound shown in the formula IV (paraldehyde) in the presence of a catalyst under the hydrogen pressure of 0.1-5 MPa to obtain a compound shown in the formula V; (3) reacting the formula V with a formula VI (phthalic anhydride) in an organic solvent at 100-120 DEG C for 10-15 hours to obtain a formula VIII; and (4) carrying out dehydration condensation on the formula VIII and the formula IX (p-cresol) under an acidic condition to obtain a target product. Raw materials are easy to obtain, the yield of each step is larger than or equal to 80%, energy consumption and cost are reduced, operation safety is improved, the method is suitable for industrial production, and import dependence of high-end heat-sensitive materials can be broken through.

The invention provides a preparation method of a heterostructure hard carbon negative electrode material. The preparation method is short in process synthesis route; microalgae powder and lignocellulose biomass powder are used as raw materials; the preparation method comprises the two treatment steps of co-hydrothermal carbonization and thermal shock, biomass impurities can be removed through co-hydrothermal carbonization, the yield and specific capacity of final hard carbon are improved, the hard carbon material has rich surface functional groups and closed pore structures through the thermal shock step of rapid heating and cooling, and the specific capacity of the hard carbon material is improved. The electrochemical capacity of a hard carbon negative electrode slope region and a platform region is improved; the invention also relates to a heterostructure hard carbon negative electrode material, the hard carbon negative electrode material is long-range disordered short-range ordered heterostructure hard carbon, the reversible capacity and charge transfer efficiency are high, and the electrochemical performance is excellent; the invention also relates to an application of the heterostructure hard carbon negative electrode material in preparation of a sodium ion battery negative electrode material, the specific capacity of the hard carbon negative electrode material is 265 mAh g <-1 > (50 mA g <-1 >), and the first week coulombic efficiency is 92.3%.

Integrated synthesis gas upgrading system (100), characterized in that the system (100) comprises: a subliquefaction compression unit (101) designed to compress gas components of the synthesis gas to a subliquefaction pressure, wherein the subliquefaction compression unit (101) is designed to compress the synthesis gas to a subliquefaction pressure of the gas component with the highest liquefaction pressure; a first pump unit (102) connected to the preliquefaction compression unit (101) and designed to receive the preliquefied synthesis gas and deliver it to another unit; a pressure vessel unit (103) connected to the first pump unit (102) and designed to receive and regulate the flow of the subliquefied synthesis gas;a stabilization chamber unit (104) connected to the pressure vessel unit (103) and designed to receive and process the subliquefied synthesis gas to remove impurities; a second pump unit (105) connected to the stabilization chamber unit (104) and designed to receive and transfer the processed synthesis gas to another unit; and an ignition chamber unit (106) connected to the second pump unit (105) and designed to carry out controlled ignition to ensure stable combustion of the processed synthesis gas.

The invention discloses a process synthesis method of an ADC drug alanine cleavable linker, and particularly provides a process synthesis method of a compound shown as a formula I. The process synthesis method specifically comprises the following steps: carrying out condensation reaction on a compound 6 and a compound SM3 to obtain a compound shown as a formula II; removing a protecting group from the compound in the formula II to obtain a compound in a formula I;

The present invention discloses a process for synthesizing an alanine-type cleavable linker of an ADC drug. Specifically, the present invention provides a process for synthesizing a compound of formula I, which specifically comprises the following steps: condensing compound 6 with compound SM3 to obtain a compound of formula II; and deprotecting the compound of formula II to obtain a compound of formula I.

The invention provides a design method of chemical separation process synthesis software. The method comprises the following steps: S1, collecting and sorting basic information of substances, uploading the basic information to a physical property database, and persistently storing; s2, uploading the equilibrium constant calculation method and parameters to an equilibrium constant calculation model library, and persistently storing the equilibrium constant calculation method and parameters; s3, uploading the empirical rule synthesized by the separation sequence to an empirical rule base synthesized by the separation sequence, and persistently storing the empirical rule; s4, software is started, a data query module is called, information of all substances in the mixture is input, information of all components in the mixture is queried, and a basis is provided for a calculation module; s5, calling a calculation module, calculating related data, and providing a basis for a liquid mixture separation sequence module; and S6, calling a liquid mixture separation sequence module, and outputting a separation sequence. The system comprises a physical property database of liquid substances, an equilibrium constant calculation model library, an empirical rule library for separation sequence synthesis, a software calculation module and a liquid mixture separation sequence module.

CONTINUOUS ZSM-5 ZEOLITH SYNTHESIS PROCESS The present invention relates to a continuous synthesis process for ZSM-5 type zeolite crystals, comprising continuously feeding a tubular reactor with a synthesis medium comprising a silica source, an alumina source, and seeds; rapidly heating the synthesis medium to a temperature between 100°C and 300°C; crystallizing it at a temperature at least equal to or higher than the temperature of the preceding step; and continuously recovering the ZSM-5 type zeolite crystals. Fig. 1

The application discloses a synthesis method of a single molecular weight heterobifunctional PEG (X-PEG-Y) connector Bromoacetamide-PEG44-Azide, and relates to the field of organic synthesis. The biological orthogonal chemical reaction of azide reagent with hydrophilic polyethylene glycol chain, alkyne, dibenzocyclooctyne (DBCO) and bicyclo[6,1,0]nonyne (BCN) is widely applied due to mild reaction conditions, fast speed and good biocompatibility. The application successfully prepares a brand-new single molecular weight azide heterobifunctional molecule Bromoacetamide-PEG44-Azide through ten steps of conventional transformation such as protection, bromination and substitution, with a total yield of about 30% and a scale of hundreds of grams. The route is simple in operation and treatment, mild in reaction conditions, is a brand-new process synthesis route, and has good economic benefits and market prospects.