577 results about "Glycerite" patented technology

The present invention relates to a process for manufacturing acrolein by dehydration of glycerol in the presence of molecular oxygen. The reaction is performed in the liquid phase or in the gas phase in the presence of a solid catalyst. The addition of oxygen makes it possible to obtain good glycerol conversion by inhibiting the deactivation of the catalyst and the formation of by-products.

The present invention relates to a process for providing non-lipid, liquid form herbal extracts in a vegetable gelatin, HPMC, or any other cellulose derivative capsule. The process includes extracting an herbal plant material with an alcohol to provide an aqueous alcoholic herbal extract. The aqueous alcoholic herbal extract is contacted with sufficient glycerin to maintain the extract preferably in solution, and at least dispersed in the mixture of glycerin and aqueous alcoholic herbal extract. Alcohol and water is removed form the mixture to provide a glycerin-based liquid or semi-solid herbal extract and having a moisture content of less than 10 percent by weight, and preferably less than 5 percent by weight. The herb extract is then encapsulated in a vegetable gelatin, HPMC, or any other cellulose derivative capsule.

This invention relates to acidity zeolite catalyst used for glycerol dehydration to perpare acrolein and the reaction craft. Glycerine directly dehydrate to generate acrolein under the condition of acidity zeolite catalyst, 200 to 500deg temperature, 0.001 to 3.0MPa pressure and 0.1 to 100.0h - 1 liquid airspeed, at the same time produce byproduct pyruvic alcohol. The raw material raw glycerine could be mixed liquor of water solution, alcosol, fatty acid ester solution at any ratio.

The invention provides a cosmetic or pharmaceutical composition in the form of an oil-in-glycerin emulsion, with mean droplet size below one micron, comprising a continuous glycerin phase, at least one vegetable oil comprising an internal phase, at least one emulsifying stabilizer, and at least one bioactive compount comprising at least one hydrophobic, moiety within its structure, wherein the composition facilitates stratum-corneum penetration and dermal penetration of said bioactive compound.

The invention relates to preparation of an oxidation resistant gelatin film containing a tea polyphenol nano-liposome, pertains to the application technology field of nano-liposome controlled release and oxidation resistance. The oxidation resistant gelatin film component comprises tea polyphenol nano-liposome, gelatin and glycerin. The preparation includes dissolving gelatin and glycerin into deionized water in proportion to produce a gelatin solution, charging a predetermined amount of tea polyphenol nano-liposome suspension, mixing uniformly, hypersonic de-gassing, and removing dried film spreading on the organic glass board. The prepared oxidation resistant gelatin film has oxidation resistance greatly improved comparing with the simple gelatin film phase, and oxidation resistance of the gelatin film is capable of lasting for longer time due to protection function of the liposome to the tea polyphenol and slowly-releasing of the tea polyphenol. The gelatin film can be biologically degraded, without environment pollution during application process; has functions of preventing loss of flavor substance in the food, preventing food oxidation, so as to reach the effect of anti-staling and prolonging storage period.

The invention relates to a normal pressure degreased crude glycerin pre-treatment method for realizing the separation of components of wood fiber biomass. The method comprises the following steps: the wood fiber biomass and the degreased crude glycerin are evenly mixed; under atmospheric pressure or micro-pressure, by auto-catalysis of the glycerin or addition of catalyst, the mixture is heated up and cooked; after cooking, the mixture is cooled down and the components of the mixture are fully dissolved; after filtering and washing, glycerin cellulose with good enzymolysis property is obtained; the filtrate is regulated to be weak acid, condensed, deposited in ethanol, and filtered for the second time to obtain semi-cellulose components; and the secondary filtrate is reclaimed by the ethanol, regulated to be strong acid, deposited and centrifuged to obtain the glycerin lignose component. The method has the advantages of not only facilitating economic utilization of low-grade crude glycerin, but also solving the potential danger of organic solvent such as low-boiling point ethanol in the magnification process of the pulping process, such as high pressure operation and easy burning and explosion of volatile gases.

The invention relates to a method for refining crude glycerine being a by-product of biodiesel, which comprises the following steps: the crude glycerine produced during the production process of biodiesel is added into an acidification reactor, dilute acid is utilized to adjust the pH to be faintly acid, and acidizing is performed for 30-60 minutes at the temperature of 45-50 DEG C; upper-layer acid oil returns to a biodiesel preparation system and is used as the biodiesel production raw material, the lower-layer glycerine solution enters into a neutralized reactor, a dilute aqueous alkali is used for adjusting the pH to alkalescence, and standing is performed for layering; the produced sediment is discharged from the bottom of the reactor, and various impurities in the obtained dilute glycerite are removed via an ion exchange column to obtain a glycerinum dilute solution; the glycerinum dilute solution enters into a short-range pipeline evaporator, and thin layer efficient rapid continuous evaporation and concentration are performed to obtain high-purity glycerine. The method has the following benefits: through the combination of ion exchange and the pipeline thin layer evaporation technology, the flow is simple, the efficiency is high, and the costs for recycling and refining glycerine and preparing biodiesel are reduced.

The chemical reaction process for preparing silver micropowder includes the following steps: dissolving silver nitrate in deionized water and diluting to 200 g / l concentration, adding 200-300 g / l concentration alkaline solution of NaOH, KOH, Na2CO3 or K2CO3 at 20-45 deg.c, adding organic reductant formic acid, formaldehyde, ethylene glycol or glycerin under low speed stirring at 50-85 rpm to produce silver micropowder of 5-10 micron size, filtering, washing, and stoving to obtain the silver micropowder product. The process has the advantages of simplicity, low production cost and controllability of the average silver micropowder size.