Selenium-rich ceramic material and preparation method thereof

A ceramic material and selenium-enriched technology, which is applied in the field of ceramic materials, can solve the problems of difficult quantitative control of intake, detection and measurement of selenium release, and high selenium-enriched content of selenium-enriched materials, and achieves the effects of simple process and low cost.

Pending Publication Date: 2019-11-22
NORTHWEST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The selenium-enriched material produced by the above patented method is not only too high in selenium-enrichment, but a

Method used

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  • Selenium-rich ceramic material and preparation method thereof
  • Selenium-rich ceramic material and preparation method thereof
  • Selenium-rich ceramic material and preparation method thereof

Examples

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Embodiment 1

[0030] In this example, in order to clearly illustrate that the selenium content of selenium-rich ceramic materials and the amount of selenium dissolved in water can be controlled by this preparation method, we prepare multiple samples and compare them by adding selenous acid solutions of different capacities .

[0031] Step 1: Weigh 100mg of selenium powder and put it in a beaker, then add a mixed acid of nitric acid and hydrochloric acid to dissolve and react the selenium powder. After the dissolution is completed, the solution is acid-displaced and fixed to a 1000ml volumetric flask to obtain 100ppm selenous acid solution.

[0032] Step 2: Weigh 6 parts of clay dry powder of 10g each, add 20ml, 30ml, 40ml, 50ml, 100ml and 200ml of selenous acid solution respectively, add appropriate amount of water for ball milling and drying, and obtain selenium-enriched soil powder material Samples, denoted as #1, #2, #3, #4, #5 and #6.

[0033] The third step: making 6 parts of seleniu...

Embodiment 2

[0041] In this example, in order to clearly illustrate that this preparation method can be used to control the selenium content of selenium-rich ceramic materials and the amount of selenium dissolved in water after immersion, we prepared multiple samples, and compared them by taking different sintering temperatures. Se content and elution in selenium ceramic samples.

[0042] Step 1: Make a soluble selenous acid solution; weigh 100mg of selenium powder and place it in a beaker, then add a mixed acid of nitric acid and hydrochloric acid to dissolve and react the selenium powder. In the volumetric flask, obtain the selenous acid solution of 100ppm.

[0043] The second step: take 5 parts of pottery clay dry powder of 10g each, add 40ml of selenous acid solution, add appropriate amount of water for ball milling and drying, and obtain selenium-enriched pottery clay powder material samples, which are recorded as #7, #8, #9, #10 and #11.

[0044] Step 3: 5 parts of selenium-enriche...

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Abstract

The invention belongs to the technical field of ceramic materials, and particularly discloses a selenium-rich ceramic material and a preparation method thereof. The preparation method comprises the following steps: 1) preparing a soluble selenous acid or selenite solution; 2) adding the soluble selenous acid or selenite into ground and crushed pottery clay dry powder to prepare a selenium-enrichedpottery clay powder material; 3) preparing a selenium-rich pottery clay green body from the selenium-rich pottery clay powder through a pottery making process; 4) sintering the selenium-rich potteryclay green body to prepare a selenium-rich ceramic material; and 5) detecting the selenium content and the selenium element dissolution amount of the prepared selenium-rich ceramic material. The selenium content of the selenium-rich ceramic material prepared by the method is 10.0-110.0 mg/kg, the selenium element can be automatically dissolved out when the selenium-rich ceramic material is soakedin water or food when in use, and the dissolution amount can meet the daily requirements of human bodies and does not exceed the normal intake.

Description

technical field [0001] The invention belongs to the technical field of ceramic materials, and in particular relates to a selenium-rich ceramic material and a preparation method thereof. Background technique [0002] Selenium is an essential trace element for the human body. It has special physiological functions. If it is lacking, it will easily lead to the occurrence of diseases such as cardiovascular disease, liver disease, cancer, and Kaschin-Beck disease. 72% of China's areas are deficient in selenium, of which 30 % is seriously deficient in selenium, which leads to the selenium intake of most people is lower than the physiological demand value, so daily selenium supplementation is very necessary, but because selenium is toxic, if excessive intake will lead to poisoning, therefore, in daily While supplementing selenium, the intake should be strictly controlled. [0003] A common means of selenium supplementation is to choose selenium-enriched ceramic tableware, so that ...

Claims

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Application Information

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IPC IPC(8): C04B33/13G01N1/44G01N21/64
CPCC04B33/131C04B2235/44G01N1/44G01N21/6404G01N21/6428G01N21/643
Inventor 崔斌陈祥邸明宇刘叶唐德剑孟莉刘业明
Owner NORTHWEST UNIV
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