A method for preparing a master powder material for optimizing the grade and particle size distribution of artificial diamond
A technology of artificial diamond and particle size distribution, which is applied in the application of ultra-high pressure process, etc., can solve the problems of different production methods, good and bad, etc., and achieve the effect of improving enterprise efficiency and reducing enterprise inventory
Active Publication Date: 2021-10-29
HENAN FAMOUS DIAMOND IND CO LTD
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Problems solved by technology
However, the existing master powder material technology is very conservative, and the good and bad are mixed, and there are great differences and shortcomings in its production methods
Method used
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Experimental program
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Embodiment Construction
[0014] A method for preparing a master powder material for optimizing the grade and particle size distribution of artificial diamond, comprising the following steps: a. Evenly mixing diamond micropowder of 5-10 μm with fine carbon powder of 300 mesh or less, the carbon powder is processed at a high temperature of 1500°C Natural flake graphite with a purity of 99.99% after impurity removal;
[0015] B, ethanol and acetone of weight ratio 1:1 are dissolved in pure water, make the solution of 20wt%;
[0016] c, mixing the product of step a and the product of step b in equal volume, stirring, and standing;
[0017] d. Put the product in step c until the upper layer liquid is clear, pour out the upper layer liquid, and dry the remaining mixture at 350° C. to obtain the mother powder material.
[0018] The column rod made of the mother powder material of the present application is produced by the synthesis process, the diamond target particle size is 60 / 80, and the diamond ratio of...
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Abstract
The invention discloses a method for preparing a mother powder material for optimizing the grade and particle size distribution of artificial diamond, comprising the following steps: a. uniformly mixing diamond micropowder of 5-10 μm with fine carbon powder of 300 mesh; b. mixing ethanol and acetone were dissolved in purified water to obtain a 20wt% solution; c, the product of step a and step b were mixed in equal volumes, stirred, and left to stand; d, the product in step c was left to stand until the upper liquid was clarified, Pour out the upper liquid, and dry the remaining mixture at a temperature of 350° C. to obtain the mother powder material. The beneficial effect of the present invention is: this application mainly utilizes the diamond micropowder of 5-10 μm that the enterprise piles up in large quantities to produce the diamond with the target particle size of 60 / 80 and the concentrated particle size of 200 μm. The particle size distribution is greater than 50%.
Description
technical field [0001] The invention relates to the technical field of superhard material synthesis, in particular to a method for preparing a parent powder material with optimized grade and particle size distribution of artificial diamond. Background technique [0002] At present, the production technology level of my country's artificial diamond is still very backward compared with foreign developed countries, and some high-quality varieties are still difficult to synthesize. The contradiction between low-grade diamonds flooding and high-grade diamonds in short supply will become more and more prominent. According to relevant data, my country's annual import of special high-grade diamonds is on the rise year by year. Therefore, how to promote the development of my country's synthetic diamond industry in the direction of high level, diversification, high quality and high efficiency has become a top priority. [0003] The key to synthetic diamond technology is the selectio...
Claims
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IPC IPC(8): B01J3/06
CPCB01J3/06
Inventor 李花蕾牛富宏薛飞张怡虎张丰丰刘花
Owner HENAN FAMOUS DIAMOND IND CO LTD