A kind of superfine powder of Hetian jade and preparation method thereof

A technology of ultrafine powder and coarse powder, which is applied in cocoa, grain processing, food science, etc., can solve the problems of difficulty in obtaining ultrafine powder with particle size, difficulty in ultrafine powder, poor fluidity, etc., and achieve improvement Crushing effect, good fluidity, and the effect of reducing difficulty

Active Publication Date: 2019-11-19
广州东芳沁玉生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Hetian jade has excellent strength and toughness, which makes the preparation of Hetian jade ultrafine powder difficult, and it is difficult to obtain ultrafine powder with a smaller particle size.
In addition, ultrafine powders have a problem, the surface energy is large, it is easy to agglomerate, and the fluidity is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A preparation method of Hetian jade superfine powder, the specific steps are as follows:

[0037] (1) Hetian jade scraps are mechanically pulverized to make Hetian jade coarse powder with a particle size≤5mm, which is set aside;

[0038] (2) Add sodium silicate to the first part of water, stir to disperse, then add diethylene glycol, nano-aluminum oxide, polyacrylamide, triethanolamine, and maleic acid olefin copolymer while stirring, and mix to obtain treatment agent, spare;

[0039] (3) Slowly pour the Hetian jade coarse powder into the treatment agent, oscillate evenly with ultrasonic waves, and after vacuum freeze-drying, use a jet mill to pulverize to make Hetian jade coarse powder with a particle size of ≤10 μm;

[0040] (4) Pour the coarse powder of Hetian jade into the second part of water, stir and mix well, then add positively charged nano-zinc oxide, ultrasonically oscillate, and make the surface of the coarse powder of Hetian jade appear positive through th...

Embodiment 2

[0054] A preparation method of Hetian jade superfine powder, the specific steps are as follows:

[0055] (1) Hetian jade scraps are mechanically pulverized to make Hetian jade coarse powder with a particle size≤5mm, which is set aside;

[0056] (2) Add sodium silicate to the first part of water, stir to disperse, then add diethylene glycol, nano-alumina, polyacrylamide, triethanolamine, maleic acid olefin copolymer while stirring, and stir to mix , to get the treatment agent, for standby;

[0057] (3) Slowly pour the Hetian jade coarse powder into the treatment agent, oscillate evenly with ultrasonic waves, and after vacuum freeze-drying, use a jet mill to pulverize to make Hetian jade coarse powder with a particle size of ≤10 μm;

[0058] (4) Pour the coarse powder of Hetian jade into the second part of water, stir and mix well, then add positively charged nano-zinc oxide, ultrasonically oscillate, and make the surface of the coarse powder of Hetian jade appear positive thro...

Embodiment 3

[0071] A preparation method of Hetian jade superfine powder, the specific steps are as follows:

[0072] (1) Hetian jade scraps are mechanically pulverized to make Hetian jade coarse powder with a particle size≤5mm, which is set aside;

[0073] (2) Add sodium silicate to the first part of water, stir to disperse, then add diethylene glycol, nano-alumina, polyacrylamide, triethanolamine, maleic acid olefin copolymer while stirring, and stir to mix , to get the treatment agent, for standby;

[0074] (3) Slowly pour the Hetian jade coarse powder into the treatment agent, oscillate evenly with ultrasonic waves, and after vacuum freeze-drying, use a jet mill to pulverize to make Hetian jade coarse powder with a particle size of ≤10 μm;

[0075] (4) Pour the coarse powder of Hetian jade into the second part of water, stir and mix well, then add positively charged nano-zinc oxide, ultrasonically oscillate, and make the surface of the coarse powder of Hetian jade appear positive thro...

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Abstract

The invention provides Hetian jade ultrafine powder and a preparation method thereof. Hetian jade leftover materials are fully utilized, and waste is avoided. The preparation method comprises the steps that the Hetian jade leftover materials are firstly mechanically smashed into Hetian jade coarse powder, then, the Hetian jade coarse powder is added into a treating agent, vacuum freeze drying andairflow smashing are carried out, micron-sized Hetian jade medium coarse powder is prepared, and finally, Hetian jade ultrafine powder of which the particle size is 10 nm or below is obtained throughwet grinding under the action of nano zinc oxide with positive charge. According to the Hetian jade ultrafine powder, the particle size is relatively small, besides, the surface of the Hetian jade ultrafine powder has positive charge, agglomeration is avoided, and fluidity is good.

Description

technical field [0001] The invention relates to the technical field of powder preparation, in particular to a Hetian jade superfine powder and a preparation method thereof. Background technique [0002] Hetian jade is the treasure of the Chinese nation and is known as the "national stone" of our country. Its chemical composition is calcium magnesium silicate containing water. The luster, coupled with the translucence-micro-transparency, highlights the softness and delicacy of its oily luster. It is a precious jade species with high artistic appreciation and collection value. Especially in our country, Hetian jade is widely made into jewelry such as necklaces, bracelets, rings and jade pendants, or carved handicrafts for appreciation and collection. [0003] Hetian jade is rich in calcium, iron, manganese, zinc, copper and other trace elements, which are beneficial to the human body. Therefore, it has excellent medical and health care effects, can mediate and restore human b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C21/00B02C19/18B02C19/06B02C17/10B02C17/20B02C7/12
CPCB02C7/12B02C17/10B02C17/20B02C19/06B02C19/18B02C19/186B02C21/00
Inventor 张藜泷
Owner 广州东芳沁玉生物科技有限公司
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