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188 results about "Pharmaceutical manufacturing" patented technology

Drug manufacturing is the process of industrial-scale synthesis of pharmaceutical drugs by pharmaceutical companies. The process of drug manufacturing can be broken down into a series of unit operations, such as milling, granulation, coating, tablet pressing, and others.

Preparation method for diamine cross-linked modified polyimide nano-filtration membrane added with polyethylene glycol

The invention provides a preparation method for a diamine cross-linked modified polyimide nano-filtration membrane added with polyethylene glycol and aims to solve the problems that the permeation flux of the prepared polyimide nano-filtration membrane is low, the rejection rate is low and the preparation cost is high in an existing method. The preparation method provided by the invention comprises the following steps: 1, preparing polyimide membrane casting liquid with the mass percent of 15%-25%; 2, preparing polyethylene glycol-polyimide membrane casting liquid, wherein the mass percent of the polyethylene glycol in the polyethylene glycol-polyimide membrane casting liquid is 1-20wt%; 3, carrying out membrane preparation by using an immersing precipitated phase conversion method to obtain the polyimide nano-filtration membrane; 4, processing the obtained polyimide nano-filtration membrane by using diamine to obtain a modified polyimide nano-filtration membrane; and 5, immersing and washing 2-4 times to obtain the diamine cross-linked modified polyimide nano-filtration membrane added with the polyethylene glycol. The preparation method for the diamine cross-linked modified polyimide nano-filtration membrane added with the polyethylene glycol is applied to fields including pharmaceutical manufacturing, biology, catalyst recycling and the like.
Owner:HARBIN INST OF TECH

Preparation method for monoamine-grafted-and-modified crosslinked polyimide solvent-resistant nanofiltration membrane

The invention provides a preparation method for a monoamine-grafted-and-modified crosslinked polyimide solvent-resistant nanofiltration membrane. The preparation method comprises the following steps: a, preparing a mixed solution from a solvent and a cosolvent according to a mass ratio of 1: 0.1-5; b, adding 15 to 28% of a polyimide solution into the mixed solution so as to prepare a membrane casting liquid; c, adding 2.5 to 20% of monoamine into the membrane casting liquid and carrying out mixing at 25 to 80 DEG C for 3 to 24 h under stirring so as to guarantee complete grafting; d, preparing a membrane by using a immersion-precipitation phases inversion process, washing the prepared membrane with deionized water a plurality of times and standing the washed membrane for subsequent usage; e, preparing an alcoholic solution of diamine with a concentration of 0.5 to 20%; f, putting the prepared membrane in the alcoholic solution of diamine prepared in the previous step for crosslinking modification for 0.25 to 48 h; and g, after completion of the reaction, soaking and cleaning the membrane in an alcohol solvent so as to obtain the polyamide nanofiltration membrane with excellent performance. The polyimide solvent-resistant nanofiltration membrane prepared in the invention has the advantages of simple preparation, adjustable hydrophilicity, outstanding solvent resistance, great permeation flux, a high retention rate, etc. and is applicable to separation of substances in all the organic solvents and to the fields of pharmaceutical manufacturing, biology, catalyst recovery, etc.
Owner:宜兴环保产业有限公司

Server for Integrated Pharmaceutical Analysis and Report Generation Service, Method of Integrated Pharmaceutical Manufacturing and Research and Development Numerical Analysis, and Computer Readable Recording Medium

A web-based tool (as a server) for integrated pharmaceutical analysis and report generation service is provided in the present invention. The server can be used for numerical analysis and report generation for pharmaceutical manufacturing, research and development, and has advantages such as simple operation, complicated but fast calculation and professional report generation, and high accuracy. The server includes at least one pharmaceutical manufacturing and research and development numerical analysis system configured to perform different pharmaceutical manufacturing and research and development numerical analyses and generate different reports. Each of the at least one pharmaceutical manufacturing and research and development numerical analysis system includes an input module configured to receive, via a user interface, at least one of a template file and a backup file previously output by the server as at least one input file, wherein the at least one input file includes a plurality of data fields to provide corresponding data; at least one calculation module, each configured to execute a built-in pharmaceutical manufacturing and research and development numerical analysis calculation program, thereby automatically performing a pharmaceutical manufacturing and research and development numerical analysis calculation on at least one of the data of the at least one input file and on-line filled data; and an output module configured to generate at least one of a backup file and a report file as at least one output file based on the result of the pharmaceutical manufacturing and research and development numerical analysis calculation performed by the at least one calculation module and provide the at least one file via the user interface.
Owner:TAIWAN BIOTECH

Method for extracting and further processing ainsliaea fragrans total flavonoid

The invention relates to the technical field of Chinese pharmaceutical manufacturing, particularly to a method for extracting and further processing ainsliaea fragrans total flavonoid. With ainsliaea fragrans adopted as the raw medicinal material, the method comprises the following steps: firstly, smashing ainsliaea fragrans; carrying out ultrasonic immersion extraction on the smashed ainsliaea fragrans in ethanol water for a plurality of times; then, combining extracting solutions; decompressing and concentrating the extracting solutions; adding ethyl alcohol into the concentrated solution, and carrying out low-temperature standing for alcohol precipitation; filtering with a micropore filter membrane; decompressing and concentrating the filtrate; carrying out vacuum drying on the concentrated solution to obtain refined ainsliaea fragrans total flavonoid extract; finally, adding pharmaceutical excipients for further preparing the ainsliaea fragrans total flavonoid extract into various pharmaceutical preparations. According to the method, ultrasonic wave and continuous countercurrent extraction technologies are combined, so that the dissolution and spreading of the effective components are quickened, the extraction time is greatly shortened, the extraction efficiency is improved, the degradation of heat sensitive components is avoided, the energy consumption and production cost are further reduced, the extraction preparation technology is relatively simple and convenient, and the method is applicable to industrial large-scale production.
Owner:JIANGXI KINGSTONE UNITE PHARMA CO LTD

Novel gear pump

The invention relates to a novel gear pump, belongs to the technical field of pumps, and particularly relates to a novel gear pump which can be used for conveying various chemical mediums, oil, water, or poisonous and harmful or inflammable and explosive liquids, and is corrosion resistant, acid and alkali resistant, heat resistant, high pressure resistant and wearproof. The gear pump provided by the invention overcomes the defects in the prior art through an innovatively designed structure, improved processing technique and reasonable selection of metal and non-metal combined materials, thereby ensuring that the novel gear pump can meet working conditions of high temperature and high pressure as well as various viscosities, and can be used for efficiently conveying chemical mediums which are poisonous, harmful, volatile, corrosive, or easy-to-crystallize or relatively oppressive. The novel gear pump is connected with a motor for driving through a designed coupler with a double flange elastic body self-alignment structure; self alignment connection between the pump and the motor is really ensured; radial load caused by misalignment is eliminated; troubles in manual adjustment and non-compliance can be solved; and the novel gear pump can be extensively applied to various industries of tobaccos, petroleum, chemical engineering, papermaking, foods, beverages, pharmaceutical manufacturing, laboratories and the like.
Owner:何祥军
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