Technique for calcining native copper

A process method, the technology of natural copper forging, applied in the field of traditional Chinese medicine, can solve the problems of unfavorable large-scale production, uneven quality, time-consuming, etc.

Inactive Publication Date: 2009-05-27
NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the current natural copper forging process on the market that there are no clear regulations on forging time, temperature, particle size and bedd

Method used

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  • Technique for calcining native copper
  • Technique for calcining native copper
  • Technique for calcining native copper

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0055] A kind of optimal forging process of natural copper, it is characterized in that process method step is as follows

[0056] (1) Break the natural copper into small pieces of 9 to 10 mm, wash and dry, and place the mat in a crucible with a thickness of 2 cm;

[0057] (2) According to natural copper calcination temperature (450℃, 550℃, 650℃), vinegar concentration (3.8g / 100mL, 5.5g / 100mL, 6.4g / 100mL), calcination time (1h, 1.5h, 2h) , program heating time (20min, 40min, 60min), medicinal material particle size 1-2mm, 5-6mm, 9-10mm, bedding thickness 2cm, 3cm, 4cm six investigation factors, take 3 levels for each factor, choose L18( 3 7 ) Orthogonal table arrangement test, according to the orthogonal test scheme, the natural copper obtained in the previous step is forged (seeing shown in Table 1);

[0058] (3) Measure the relative hardness, porosity, and Fe in the water decoction of the calcined natural copper obtained in the previous step. 2+ The method of As content i...

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Abstract

The invention discloses an optimum technical method for calcining native copper. The technical procedures are as below: (1) crushing and cleaning the native copper and drying the native copper in a crucible; (2) according to the six factors of native copper calcining temperature, vinegar concentration, calcining time, programmed temperature rising time, granularity of medicinal material and matting thickness, choosing three levels for each of the six factors and calcining the native copper by using an L18<37> orthogonal table; (3) respectively measuring the relative hardness and porocity of the calcined native copper and Fe<2+> content and As content in a water solution of the calcined native copper; (4) working out scores of the measurement results obtained from the former step and obtaining a comprehensive score; and (5) carrying out analysis of variance on the comprehensive score so as to obtain the following optimum technologcial conditions for calcining the native copper, i.e. the calcining temperature is 450 DEG C, the calcining time is 2 h, the programmed temperature rising time is 40 min, the concentration of the vinegar in use is 3.8 g/100 mL, the granularity of medicinal material ranges from 9 mm to 10 mm, and the matting thickness is 3 cm. The invention provides the optimum technical method for calcining the native copper and also provides the relative hardness, the porocity, the Fe<2+> content and the As content in a water solution, which serve as the indexes for evaluating the quality of the calcined native copper, so that objective evaluation standards are established.

Description

technical field [0001] The invention relates to a method for calcining natural copper, which belongs to the field of traditional Chinese medicine. Background technique [0002] Natural copper is a natural copper of the pyrite group of sulfide minerals, and is one of the commonly used medicines for traumatology in traditional Chinese medicine recorded in the "Chinese Pharmacopoeia". The main component of natural copper is FeS 2 , acrid in the mouth, flat in nature, return Liver Meridian. It has the effects of breaking accumulation, healing fractures, rejuvenating tendons and bones, dispelling blood stasis and draining pus, relieving pain and relieving convulsions. It is an important bone medicine in traditional Chinese medicine traumatology since ancient times. It is mostly used to treat bruises, tendons and fractures, blood stasis and pain. . [0003] The processing method of natural copper has a long history. Since ancient times, repeated calcining and quenching methods ...

Claims

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Application Information

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IPC IPC(8): A61K33/26
Inventor 蔡宝昌李伟东高婵李俊松陈建伟李祥
Owner NANJING UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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