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H218O production method and apparatus for rectifying 18O isotope enriched water

A technology of isotope and heavy oxygen water, which is applied in the field of water rectification device for enriching heavy oxygen isotope to produce heavy oxygen water and enriching heavy oxygen isotope water, to achieve the effect of convenient source, convenient operation and no environmental pollution

Active Publication Date: 2007-10-17
SHANGHAI RES INST OF CHEM IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the very small difference in vapor pressure between isotope molecules, the separation of isotopes must use multi-stage rectification

Method used

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  • H218O production method and apparatus for rectifying 18O isotope enriched water
  • H218O production method and apparatus for rectifying 18O isotope enriched water
  • H218O production method and apparatus for rectifying 18O isotope enriched water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Raw water content 18 O0.2% atomic, 17 O0.04% atomic, 16 O99.76% atomic. The water rectification device is composed of three rectification towers connected in series. Among them, the diameter of the first rectification tower is 50 mm, and the height of the packing is 5 m; the diameter of the second rectification tower is 20 mm, and the height of the packing is 5 m; Vacuum is established for the three rectification towers respectively, and the feed pump sends the raw material water into the first rectification tower at 5Kg / h. The operating process conditions of each tower are as shown in table 1 (pressure shown in the table is absolute pressure):

[0033] Distillation column serial number

[0034] Operated by the process conditions shown in table 1, the third rectifying tower can be taken out containing 18 O15.0% atomic heavy oxygen water 0.5g / h, its deuterium content is 85.0% atomic. After electrolysis and hydrogenation combustion, a low-deuterium-contain...

Embodiment 2

[0036] Raw water content 18 O0.2% atomic, 17 O0.04% atomic, 16 O99.76% atomic. The water rectification device is composed of six rectification towers connected in series. Among them, the diameter of the first rectification tower is 100mm, the height of the packing is 5m, the diameter of the second rectification tower is 80mm, the height of the packing is 5m, the diameter of the third rectification tower is 50mm, the height of the packing is 5m, the diameter of the fourth rectification tower is 30mm, The height of the packing is 5m, the diameter of the fifth rectification tower is 20mm, the height of the packing is 5m, the diameter of the sixth rectification tower is 15mm, and the height of the packing is 5m. Vacuum is established for the six rectification towers respectively, and the feed pump sends the raw material water into the first rectification tower at 12Kg / h. The operating conditions of each tower are as shown in table 2 (pressure shown in the table is absolute pre...

Embodiment 3

[0040] Raw water content 18 O0.2% atomic, 17 O0.04% atomic, 16 O99.76% atomic. The water rectification device is composed of nine rectification towers connected in series / parallel. Among them, the first rectification tower to the fourth rectification tower form a series group, the fifth rectification tower and the sixth rectification tower form a series group, the seventh rectification tower to the ninth rectification tower form a series group, and the latter two are connected in series The groups are all connected after the fourth rectification tower to form a series / parallel water rectification device. The tower diameter and packing height of the first rectifying tower to the sixth rectifying tower are the same as embodiment 2, the tower diameter of the seventh rectifying tower is 20mm, and the packing height is 5m, the eighth rectifying tower tower diameter is 20mm, and the packing height is 5m, and the packing height is 5m. The diameter of the nine rectification towers...

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Abstract

The invention discloses a method to produce heavy oxygen water and a water rectification device for enriching heavy oxygen isotopic water. The method of this invention includes enriching heavy oxygen isotopic water with the water rectification device, electrolyzing to prepare heavy oxygen isotopic oxygen and combine the isotopic oxygen with hydrogen to prepare heavy oxygen water. The device mainly includes several series or series / parallel rectification tower each filled inside with particle filler with specific area 1000 to 3000 square meter / cubic meter and lustring filler with specific area 350 to 700 square meter / cubic meter. The source of the method in the invention is natural water which is a cheap, expedience source. The rectification device is of simple structure, safe operation, low cost, no harm to the environment. The device and the method when adopted together will obtain heavy oxygen water with the heavy oxygen isotopic oxygen of density of 10 to 97 percents, deuterium of natural abundance.

Description

technical field [0001] The invention relates to a production method and a production device of chemical products, in particular to a method for producing heavy oxygen water by enriching heavy oxygen isotope and a water rectification device for enriching heavy oxygen isotope water. Background technique [0002] Oxygen in nature has three stable isotopes with mass numbers of 16, 17, and 18, respectively. Its abundance in natural water is 99.76%, 0.04%, 0.2% atom respectively. in 16 O is an ordinary oxygen element, 17 O. 18 O is a heavy oxygen isotope. Due to their similar external properties, the three isotopes of oxygen can replace each other without affecting the properties of the original substances they constitute. Therefore, heavy oxygen isotopes can be widely used as tracer atoms in many fields such as physical chemistry, biology, medicine, and environmental science. [0003] There are many ways to obtain heavy oxygen isotopes, mainly including thermal diffusion, c...

Claims

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Application Information

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IPC IPC(8): B01D59/04B01D3/32C01B5/00C01B13/00
Inventor 伍昭化肖斌陈代传李猷秦川江周建耀张丽雅陈大昌陈增寿刘乃鸿
Owner SHANGHAI RES INST OF CHEM IND
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