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230 results about "Drug production" patented technology

Drug "manufacturing," in a criminal law setting, occurs when an individual is involved in any step of the illicit drug production process. Those who sell certain precursor chemicals, specialized equipment, or simply offer to help produce drugs also may be charged with the crime.

Green extraction process for artemisinin

The invention discloses a green extraction process for artemisinin, and relates to the field of drug production. The process comprises the following steps: (1) drying of raw materials, that is, putting the raw materials into drying equipment for drying; (2) primary processing of artemisinin, that is, putting the dried raw materials into an extraction tank, adding petroleum ether, heating the extraction tank, carrying out countercurrent extraction, allowing the extract to flow out from the extraction tank, standing the extract to obtain a supernatant, allowing the supernatant to pass through asilica gel column, eluting the silica gel column with petroleum ether, collecting artemisinin fractions, putting the artemisinin fractions into a concentrating tank for concentration until crystals are precipitated, putting the obtained concentrate into a crystallizing tank for crystallization, carrying out filtering to obtain crystals, and drying the crystals so as to obtain crude products of artemisinin; (3) refining of artemisinin, that is, dissolving the crude products of artemisinin in an alcohol precipitating tank with ethanol, wherein the ethanol with a concentration of 93 to 95% is 65to 75 times the amount of the crude products, standing the solution, taking the supernatant of the solution for secondary filter, concentrating the filtrate in the concentrating tank, standing the concentrate for crystallization, carrying out filtering to obtain crystals, and drying the crystals under vacuum so as to obtain refined products of artemisinin.
Owner:GUANGXI XIANCAOTANG PHARMA

Ginkgo snail-killing micro emulsion and preparation method thereof

The invention discloses a gingko snail killing microemulsion agent and a preparing method, which relates to the technical field of plant source agricultural drug production. The invention takes the seed shell extract of the gingko containing a ginkgoic acid as the source drug, and the invention is made by configuring auxiliary surface active agents, solution agent and antifreeze agent as well as water. The producing method comprises the following operating steps: the gingko external seed shell extract, the microemulsion agent and the solution agent are blended to be an even and transparent oil phase; the steamed water or the deionized water are added slowly to form an oil enclosed water type emulsion during the agitating process; through agitating and heating, the emulsion is rapidly converted into a water enclosed oil type; a steady O or W type emulsion after being cooled to reach the constant indoor temperature is obtained. The invention has fine environmental compatibility of the emulsion conformation, also completely realizes the advantages of the gingko snail killing agent with high efficiency to the snail and safety to people and animals. The microemulsion agent takes water as the main solvent with slight influence to environment. In addition, the invention has remarkable synergism; the LC 50 and LC 90 of the 24h respectively are 0.56mg per liter and 3.5mg per liter, which are obviously better than that of the 24h snail killing effect (LC50 is equal to 1.35mg per liter and the LC90 is equal to 3.85mg per liter) of the external seed shell extract of the original drug.
Owner:JIANGSU UNIV

Dynamic calibration system for radiopharmaceutical radionuclide activity

The invention relates to the technical field of radiopharmaceutical production equipment, in particular to a dynamic calibration system for radiopharmaceutical radionuclide activity. The invention provides the dynamic calibration system for the radiopharmaceutical radionuclide activity. The dynamic calibration system comprises a radiopharmaceutical basic data module, a production management system, a warehouse management system and a logistics distribution system, wherein the production management system, the warehouse management system and the logistics distribution system respectively carry out two-way signal transmission with a radiopharmaceutical management module, the system also comprises a radiopharmaceutical radionuclide activity operation module which respectively carries out data transmission with the radiopharmaceutical management module and the radiopharmaceutical basic data module, and the radiopharmaceutical radionuclide activity operation module is respectively connected with a radiopharmaceutical inquiry module and a radiopharmaceutical medicine input/output module. The dynamic calibration system has the advantages that in a nuclear drug production management system, a radionuclide activity automatic calibration module is added, a radionuclide database is built, production materials and products of the radiopharmaceutical are realized, and the activity value at any moment can be inquired through the real-time calculation from initial parameters by inputting a product name or a chemical formula.
Owner:BEIJING ZHIBO BIO MEDICAL TECH +1

Micro liquid metering ceramic pump for drug production

The invention discloses a micro liquid metering ceramic pump for drug production, and belongs to the technical field of metering pumps. The ceramic pump comprises a driving section and a pump head, wherein the center of the driving section is connected with an output shaft of a stepping motor; a self-aligning roller bearing is arranged on an inner side wall of a cavity of the driving section; a cylinder body is arranged in the pump head in a sleeving manner; a liquid inlet and a liquid outlet which are corresponding mutually are formed in the cylinder body; a plunger capable of rotating and sliding relatively is arranged in the cylinder body in a matching manner; an opening is formed at the inner end of the plunger; the outer end of the plunger extends out of the cylinder body; a plunger sleeve is arranged at the outer end of the plunger, and connected with a plunger pin perpendicular to the plunger sleeve; the plunger pin is connected with the self-aligning roller bearing from the inner side of the cavity of the driving section, so that the plunger can be obliquely arranged relative to the driving section; and an included angle a between a central line of the plunger and a central line of the driving section is 0-12 degrees. According to the micro liquid metering ceramic pump for the drug production, a valveless structure effectively solves the common problems of a general metering pump, such as blocking and seizure.
Owner:SICHUAN EMEISHAN PHARMA

Logistics conveying system

The invention discloses a logistics conveying system. The logistics conveying system comprises a first conveying rail, a transition conveying rail, a second conveying rail and a packing material recycling rail; the first conveying rail is arranged on one side of the transition conveying rail, and the second conveying rail and the packing material recycling rail are arranged on the other side of the transition conveying rail; the transition conveying rail comprises an upper-layer conveying rail and a lower-layer conveying rail which are vertically arranged in parallel, the first conveying rail is connected with the upper-layer conveying rail in a butt-joint manner, the second conveying rail is connected with the upper-layer conveying rail in a butt-joint manner, and the packing material recycling rail is connected with the lower-layer conveying rail in a butt-joint manner; the first conveying rail is provided with unboxing stations, the second conveying rail is provided with unpacking stations, and the packing material recycling rail is used for receiving packing materials unpacked on the unpacking stations. The logistics conveying system has the advantages that layout is reasonable, the structure is compact, the space utilization rate of a plant area is increased, and automation of a drug production line can be achieved.
Owner:TRUKING TECH LTD

Preparation method of porous carbon-based composite material

The invention discloses a preparation method of a porous carbon-based composite material, and belongs to the field of waste recycling and regeneration. Waste mushroom dregs are recycled, the finally prepared product has excellent performances when used as an electrode material, and can realize industrial application, and activation and compounding are integrally carried out to prepare the uniformcomposite porous carbon-based electrode material with excellent electrochemical performances; an alkaline solution is adopted to activate and dissolve a mushroom dreg suspension into a homogeneous solution, an electrochemically active material or its precursor is added, a compounding process is carried out, and curing and heat treatment processes are carried out to finally construct the electrochemically-active porous carbon-based composite electrode material; and the preparation method has the advantages of realization of harmlessness and recycling hazardous wastes in the drug production process, simple process flow, and low cost, and the obtained composite material has the advantages of good conductivity, high capacity and excellent cycle performances when used as an electrode material for energy storage devices, and is suitable for large-scale production.
Owner:CENT SOUTH UNIV
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