Compound Chinese medicinal stone and its preparation

A technology of medical stone and medical stone powder, applied in silicon compounds, inorganic chemistry, water/sludge/sewage treatment, etc., to achieve excellent photocatalytic ability, improve skin water retention performance, and improve nutrient supply

Inactive Publication Date: 2002-11-06
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to aim at the technical problems in the current medical stone use process, and provide a composite medical stone and its preparation with composite material technolo

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

[0021] After the maifanite selection method is processed, it is pulverized into fine powder of 10-500μm, sieved, mixed with 30% of the weight of maifanite iron powder with a particle size of 10-200μm, and iron balls with a volume ratio of 1:1 are added. Mix the powder in the mixing tank for 20 hours, pick out the iron balls, and get a uniformly mixed powder.

[0022] 6 parts by weight of water-soluble starch dissolved in 94 parts of distilled water, heated and boiled into a paste binder, added to the evenly mixed powder, the addition amount of the binder is 30% of the powder amount, uniformly knead the paste After finishing the mud, stack it for 10 hours to fully moisten it with moisture, and then dry it in a microwave drying oven for 5 minutes. The water content of the mud mass is reduced to 10-25%, and the mud mass is dispersed and sieved while it is hot, and 0.5-200mm particles are taken. , Placed in an oven at 80°C and dried for 5 hours, taken out and placed...

Example Embodiment

[0024] Example 2

[0025] In this example, except that the medical stone is mixed with reduced iron powder which is 10% of the weight of the medical stone, TiO 2 The amount of copper nanoparticles added to the sol is TiO 2 Except that the weight ratio to copper is 100:1, other conditions and operations are the same as in Example 1.

[0026] The products of Examples 1 and 2 are very effective in water purification and bathing medical treatment. They can be recycled and reused. The composite medical stone sensitized with ultraviolet light can basically catalyze degradation of organic molecules, viruses and bacteria, and avoid secondary pollution. .

[0027] Because there are many pores on the surface of magnetic medical stone aggregates, in order to prevent the gel film from clogging the pores or uneven accumulation, in the examples, diethanolamine and polyethylene glycol are added before the gel. The actual production is not critical. It is required or not.

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PUM

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Abstract

The compound Chinese medicinal stone consists of sintered carrier of natural Chinese medicinal stone powder and reduce iron powder in the ratio of 100 to 5-40 and photosensitive catalyst film carrieronto the surface and of TiO2 and Ag, Cu, Pt or Pd in the weight ratio of 100 to 0.5-3. It is prepared through mixing natural Chinese medicinal stone powder and reducing iron powder as well as adhesive, sintering and cooling to obtain sintered carrier, and depositing the photosensitive catalyst film. The compound Chinese medicinal stone in different shapes may be used to degrading and adsorbing metal ions, organic matter and germ in purity water and in health care and may be recovered for reuse.

Description

technical field [0001] The invention relates to a composite medical stone processed from natural medical stone and its preparation, and is characterized in that it has ferromagnetism and photocatalytic degradation functions and its preparation. Background technique [0002] Medical stone contains a variety of water-soluble major elements, trace elements, and rare earth elements, which have effects on human growth and development, metabolism, cell regeneration, and prevention of cell aging, and have good medical and health care effects. At the same time, because medical stone is a silicate rock and soil, it has a sieve-like structure with well-developed pores, has a good ability to absorb heavy metal ions, organic molecules, and virus bacteria, and has good mineralized leached substances that can adjust the pH value of water quality in both directions. characteristics, so it can be widely used in environmental protection and water purification. However, due to the influence ...

Claims

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Application Information

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IPC IPC(8): B01J20/10B01J21/06B01J23/38B01J23/72C02F1/00
Inventor 董学斌李力董胜其刘卫东赵国荣刘桂珍李汉东熊先立万章国
Owner WUHAN UNIV OF TECH
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