51results about How to "High quality development" patented technology

The application provides a method and system for preparing low-carbon cement by using coal gasification ash in a graded manner, and the method comprises the following steps: dividing the coal gasification ash into carbon-rich ash, medium-carbon ash and carbon-poor ash according to the carbon content; feeding the carbon-rich ash and raw coal into a coal powder preparation workshop to prepare a first mixture as a clinker calcination fuel; feeding the medium-carbon ash into a raw material preparation workshop after metering to be ground and dried together with other raw material components; preparing clinker by decomposing and calcining the second mixture after mixing uniformly and cooling; feeding the mixture of the clinker and other cement components and the carbon-poor ash into a cement preparation workshop to prepare finished cement. The carbon content of the coal gasification ash is divided in a graded manner to obtain coal gasification ash materials with different characteristics, and the cement production process characteristics are combined to be used in three process sections of raw material grinding, clinker calcination and cement grinding, so that the coal gasification ash is used in a large amount and in a large scale in the building material resources, and the carbon emission in the cement clinker production process is reduced.

This invention discloses a quaternary ammonium salt-modified lignin-based epoxy resin emulsion and its preparation and application methods. It is prepared by reacting quaternary ammonium salt, epoxidized lignin, polyamine compounds, reactive diluents, organic solvents, and water. The quaternary ammonium salt and polyamines are uniformly mixed and reacted in an organic solvent under stirring. Then, epoxidized lignin is added to continue the reaction, yielding the quaternary ammonium salt-modified lignin-based epoxy resin. Water is added to reduce the viscosity, resulting in the quaternary ammonium salt-modified lignin-based epoxy resin emulsion. After adding a curing agent and stirring evenly, it can be used to treat wood and bamboo materials by surface coating, immersion, vacuum impregnation, or pressure impregnation. The quaternary ammonium salt-modified lignin-based epoxy resin emulsion prepared by this invention exhibits good antibacterial, antifungal, and UV-resistant effects after curing, and its application to wood and bamboo materials can effectively improve their dimensional stability and durability.

The invention provides a preparation method and application of modified dolomite, and belongs to the technical field of inorganic filler. The method comprises the following steps: mixing dolomite powder and a solvent to prepare slurry; a modifier is added into the slurry and stirred for a reaction, a mixed material is obtained, and the modifier comprises oleic acid and an aluminate coupling agent; and carrying out solid-liquid separation on the mixed material, collecting a solid phase, and drying the solid phase to obtain the modified dolomite. On the premise of high activity and high hydrophobicity of aluminate, oleic acid is introduced to make up for the defect that a single aluminate coupling agent may cause a high oil absorption value, so that the modified dolomite has high activation index, high hydrophobicity and low oil absorption value, thereby well improving the surface hydrophilicity and hydrophobicity and interface bonding force of the dolomite; the modified dolomite is more suitable for being combined with other components for application, the additional value of dolomite mineral resources is effectively improved, and a feasible path is provided for high-quality development of dolomite.

The invention provides application of exogenous D-ribose in improving the normal-temperature preservation effect of boar semen and a method for improving the normal-temperature preservation effect of the boar semen. According to the technology disclosed by the invention, D-ribose is added into the boar semen stored at normal temperature, so that the effects of enhancing the oxidation resistance of the semen, improving the sperm motility and improving the quality of the semen can be achieved, and particularly, indexes such as the sperm motility, the plasma membrane integrity rate, T-AOC, CAT, GSH-Px and SOD are obviously higher than those of all groups including a control group; the ROS content of the sperms is obviously lower than that of all other groups.