The present invention provides a genetically engineered bacterium producing malic acid and its method of malic acid production, including increasing the expression or activity of dicarboxylic acid transporter protein in the recipient bacterium, decreasing the expression or activity of methyltransferase…
The present invention relates to the field of chemical engineering, specifically providing a method for synthesizing D,L-pantothenic acid lactone, comprising the following steps: polyformaldehyde and isobutyraldehyde undergo aldol condensation reaction in an alcohol solvent under the action of a basic…
This invention discloses a method for preparing CoTe nanowire-graphene composite material, which is composed of CoTe nanowires dispersed in graphene nanosheets. The preparation method includes dispersing graphene oxide in a mixture of N,N-dimethylformamide and water, adding cobalt acetate, NaOH, and…
The problem with existing technology is that, due to the low-temperature separation of liquid sulfur, the carbon disulfide content in the liquid sulfur is too high. During the filtration process of liquid sulfur, it can be released, causing safety and…
Abstract This utility model pertains to the field of organic synthesis technology and, more specifically, relates to a continuous production system for phenylamine-based acetonitrile. The production system includes sequentially connected microreactors, delay reactors, cooling mechanisms, and phase separation devices. The…
The utility model patent belongs to the field of chemical equipment, and presents a high-conversion continuous flow reaction system, including a microchannel fast reactor and a buffer reactor, the microchannel fast reactor is provided with a microdistributor and a reaction…
The utility model patent belongs to the technical field of chemical equipment, presents a high-speed atomization reaction tube, including a tube body, which is provided with an atomization area and a baffling area, the atomization area along the material flow direction is provided with…
The invention belongs to the field of reaction equipment technology, specifically presents a microchannel fast reactor, including a housing, the housing is provided with several microchannel reaction units, each microchannel reaction unit includes a microdistributor and a reaction tube, the microdistributor is provided with…
Abstract This utility model belongs to the field of chemical equipment technology and specifically discloses a membrane type volatile matter removal device for sustainable heat supply, which includes a cylinder, a heat medium distributor, a fixed plate for a falling…
Abstract This utility model belongs to the field of chemical equipment technology and specifically discloses a falling film crystallizer capable of countercurrent heat transfer, which includes a cylinder, a cold and hot medium distributor, a crystallization tube fixing plate, a…