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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 technology. The composite medical stone has the advantages of easy recovery, environmental protection, water treatment and medical care. Reuse, reduce cost, reduce secondary pollution, and expand the scope of application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] After the medical stone is treated by the refining method, it is crushed into a fine powder of 10-500 μm, sieved, mixed with 30% of the weight of the medical stone, and the iron powder with a particle size of 10-200 μm is added, and iron balls with a volume ratio of 1:1 are added in the Mix the powder in the mixing tank for 20 hours, pick out the iron balls, and get a uniform powder.

[0022] Dissolve 6 parts of water-soluble starch by weight in 94 parts of distilled water, heat and boil to form a paste-like binder, add it to the evenly mixed powder, the amount of binder added is 30% of the powder, and knead evenly to make a mud ball , After the mud is practiced, stack it for 10 hours to fully moisten the water, and then dry it in a microwave oven for 5 minutes. , placed in an oven to dry at 80°C for 5 hours, taken out and placed in a high-temperature furnace to raise the temperature to 1250°C at a rate of 3°C / min, keep it warm for 2 hours, and cool it for later use.

...

Embodiment 2

[0025] In this example, the addition of reduced iron powder in the medical stone is 10% of the medical stone weight, TiO 2 The amount of copper nanoparticles added to the sol is TiO 2 Except that the copper weight ratio 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 for water purification and bathing, and can be recycled and reused. The compound medical stone sensitized by ultraviolet light, organic molecules, virus bacteria, etc. can be basically catalyzed and degraded, avoiding secondary pollution .

[0027] Because there are many holes on the surface of the magnetic medical stone aggregate, in order to prevent the gel film from clogging the holes or uneven accumulation, diethanolamine and polyethylene glycol are added before the gel in the embodiment, and there is no strictness on how much to add in actual production. It may or may not be required.

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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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