3results about How to "Guaranteed chromaticity" patented technology

The utility model discloses a far and near light module with a cut-off line distance adjustable function, which comprises a lens, a decorative ring, small iron, a cut-off line baffle, a condenser, a PCB (printed circuit board), a radiator and a support, the lens is used for collimating and imaging light in the module, so that a car lamp further illuminates, the light irradiates farther and brighter, the decorative ring is used for a retainer of a module assembly, and the cut-off line baffle is used for retaining the light in the module assembly. The small iron is used for preventing sunlight from focusing and burning parts in the module, the cut-off line baffle is used for improving the focal length of the passing light, the gradient and chromaticity of the passing light are guaranteed, and the passing light and the passing light are lightened and connected at the same time. The condenser is used for guiding the passing light and the passing light, the PCB is used for controlling starting and stopping of light, and the radiator is used for dissipating heat of the module. The support is used for fixedly installing the decoration ring and the radiator.

The invention discloses an extraction method of high-purity glutamic acid, and belongs to the field of monosodium glutamate production industry. The method comprises the following steps: introducing glutamic acid fermentation liquor into an ultrafiltration membrane to obtain clear liquor and thallus concentrated liquor A; the thallus concentrated solution A enters a dialysis membrane to obtain dialysate and a thallus concentrated solution B; carrying out filter pressing on the thallus concentrated solution B to obtain fungi residues and filtrate; merging the filtrate and the thallus concentrated solution A; the dialysate enters a concentration membrane, a concentrated solution and membrane produced water are obtained, and the membrane produced water is dialysis water; the concentrated solution and the clear solution enter a continuous isoelectric crystallizer to be crystallized, and glutamic acid crystal slurry is discharged at the same time for crystallization; performing primary separation to obtain glutamic acid and isoelectric mother liquor A; the isoelectric mother liquor A is subjected to secondary separation, fine glutamic acid crystals and isoelectric mother liquor B are obtained, and the isoelectric mother liquor B enters a sewage treatment procedure; and fine glutamic acid crystals return to the continuous isoelectric crystallizer. The glutamic acid obtained by the method has the advantages of high yield, high product purity, high light transmittance and good color and luster, and is superior to the commonly used'concentration continuous isoelectric crystallization + crystal transformation 'process.

This invention discloses a method for preparing pentaerythritol oleate based on sodium bisulfite. The method involves the esterification reaction of pentaerythritol and oleic acid with sodium bisulfite as an auxiliary agent. Sodium bisulfite, as an auxiliary agent, possesses both catalytic and antioxidant functions, effectively improving the reaction rate and product yield while suppressing oxidation side reactions. This eliminates the need for additional antioxidants, improving product quality and reducing costs. The preparation method is simple, mild, and environmentally friendly, with readily available raw materials, low-cost auxiliary agents, and easy separation. After the reaction, the catalyst is removed by hot filtration, and unreacted oleic acid is removed by solvent extraction, effectively reducing the product's acid value. The extracted potassium oleate byproduct has a purity of 80%–90% and can be used as a flotation agent, release agent, or raw material for lubricant production, making it suitable for industrial applications. The resulting pentaerythritol oil is suitable for high-end lubricants, bio-based plasticizers, and environmentally friendly coatings.