46 results about "Drug industry" patented technology

A plasma based deposition process to deposit thin film on the inner surfaces of the shaped objects such as plastic or metallic object like bottles, hollow tubes etc. at room temperature has been developed. In present invention uniform hydrogenated amorphous carbon (also called Diamond-Like Carbon, DLC) films on inner surfaces of plastic bottles is successfully deposited. Applications of such product include entire food and drug industries. There is a huge demand of polyethylene terephthalate (PET) or polyethylene naphthalate (PEN)) bottles, meant for the storage of potable water, carbonated soft drinks, wines, medicines etc. However, the higher cost prohibits their wide, spread use. The cheaper alternative is to use plastic bottles inside coated with chemically inert material such as Diamond-Like Carbon (DLC) will be commercially viable. Inventor process can be scaled up for mass production. This process can also be used for coating on inner surface of metallic cane or tube with a carbide forming interlayer (like hydrogenated amorphous silicon) to get the DLC films with better adhesion to inner surface of metals.

The invention relates to a preparation method for granular type xanthan gum, belonging to the field of preparing glucose residue-containing compound. The preparation method is characterized by taking xanthan gum powder as starting raw materials, adopting a boiling granulation drying device to prepare the granular type xanthan gum, and comprises the following steps of 1.discharging of xanthan gum powder; 2. introduction of hot air; 3. spraying of atomized water; 4. boiling granulation; 5. secondary drying; 6. screening; and 7. quality inspection, and finally packaging for storage after qualification. The invention provides a preparation method for granular type xanthan gum with large specific area and high porosity. The prepared granular type xanthan gum substitutes powder products sellingon the market, and solves the problems that the powder xanthan gum in the prior art is slowly dissolved, and blocked during dissolving process and has dust pollution. The preparation method is applicable for granulation and processing of unpackaged powder after crushing and screening during production process of xanthan gum powder production devices, as well as granulation and processing xanthan gum powder used in market sauce seasoning, soup bases, drinks, food, drug industry and petroleum industry.

The present invention relates to a kind of synthetic method of carboxyamine triazole. The synthetic method of carboxyaminotriazole comprises the following steps: step (1) adopts " one pot method " to carry out halogenation reaction and azide substitution reaction successively; Step (2) uses DMSO as solvent, in potassium carbonate (K 2 CO 3 ) under the action of cyanoacetamide and compound int‑2 to undergo a Click ring-forming reaction; step (3) refines the product of step (2), and the raw material ratio, feeding sequence, feeding temperature, post-treatment and other multiple nodes for optimal control, so that the related substances in the prepared carboxyaminotriazole product can meet the requirements of drug quality and industrial production of drugs, and the synthesis method has high yield, low process cost, good stability, and is easy to use. Carry out industrialized scale-up production.

The invention discloses a purifying process of indole-3-aminic acid, this process can accomplish by procedures as follows: 1)adding methyl ketones organic solvent into alkali metal salt solution of indole-3-aminic acid which is made by indole-3-formaldehyde; 2)adding reduction inorganic salt into alkali metal salt solution of indole-3-aminic acid which is made by indole-3-formaldehyde to reduce it; 3)acidizing the products of 1)and 2)by inorganic acid; 4)conductting recrystallization of the products uupwords to have high-purity indole-3-aminic acid. This invention is simple to operate, easy to find the material and low in cost. It is propitious to industrial production and adapt to the request of chemical industry, drug industry. ect.

A solvent recovery device in pharmacy which is mainly characterized in that a liquid ring pump is used for extracting the solvent steam which is separated from a gas-liquid separator, the liquid ring pump increases the pressure of the solvent steam, and then a condenser and the gas-liquid separator carries out the secondary condensation and the gas-liquid separation of the solvent steam after the pressure increases. A solvent recovery system for achieving the method is mainly characterized in that a steam exhaust port of the gas-liquid separator is connected with the liquid ring pump, an output of the liquid ring pump is sequentially connected with a secondary condenser and a secondary gas-liquid separator in series, a liquid discharge port of the secondary gas-liquid separator is connected with a working liquid input port of the liquid ring pump and a recovery tank, and the liquid ring pump takes the solvent as the working liquid. The solvent recovery device can not only increase the times of the condensation and the gas-liquid separation of the solvent stream, but can also increase the condensation pressure during the secondary condensation process, thus significantly increasing the solvent recovery rate, reducing the solvent loss and the production cost of the pharmaceutical industry and reducing the environmental pollution.