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Industry preparing method for sodium sand

An industrial and sodium sand technology, applied in the field of sodium sand preparation, can solve the problems of uneven particle size of sodium sand, long time, complicated operation, etc., and achieve the effect of less difficulty in operation, short time and good repeatability

Inactive Publication Date: 2017-09-29
CHENGDU ORGANOCHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the preparation process in the prior art has the problems of uneven particle size of the prepared sodium sand, cumbersome operation and long time. The purpose is to provide efficient and safe preparation of high activity, fine particle size Industrial preparation method of a kind of sodium sand which is uniform and will not coagulate again

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of industrial preparation method of sodium sand, concrete preparation method is as follows:

[0019] Keep the reactor airtight and dry, replace it with nitrogen for 3 times, install a shearing machine, and under the protection of nitrogen atmosphere, add 100kg of metal sodium, 0.5kg of polyethylene resin and 500kg of toluene into the reactor, and heat up to the inner jacket with steam. Warm at 110°C, hold for 40 minutes, melt the sodium metal, turn on the shearing machine, time 35s, turn off the shearing machine, slowly cool to room temperature (25°C), and cool down for 150 minutes to obtain uniform and fine sodium sand particles of 100-200 meshes, This sodium sand will not coagulate again.

Embodiment 2

[0021] A kind of industrial preparation method of sodium sand, concrete preparation method is as follows:

[0022] Keep the reactor airtight and dry, replace it with nitrogen for 3 times, install a shearing machine, and under the protection of a nitrogen atmosphere, add 46kg of sodium metal, 0.23kg of polyethylene resin and 230kg of xylene in the reactor, and heat up the jacket with steam to The inner temperature is 120°C, keep warm for 45min, metal sodium melts, turn on the shearing machine, time 35s, close the shearing machine, slowly cool to room temperature (25°C), cooling time is 163min, and obtain uniform and fine sodium sand particles of 100-200 mesh , the sodium sand will not coagulate again.

Embodiment 3

[0024] A kind of industrial preparation method of sodium sand, concrete preparation method is as follows:

[0025] Keep the reactor airtight and dry, replace it with nitrogen for 3 times, install a shearing machine, and under the protection of a nitrogen atmosphere, add 138kg of metallic sodium, 0.69kg of polyethylene resin and 690kg of xylene in the reactor, and heat up the jacket with steam to The inner temperature is 115°C, keep it warm for 40 minutes, melt the sodium metal, turn on the shearing machine, time 43s, turn off the shearing machine, slowly cool to room temperature (25°C), and the cooling time is 176 minutes to obtain uniform and fine sodium sand particles of 100-200 mesh , the sodium sand will not coagulate again.

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Abstract

The invention discloses an industry preparing method for sodium sand, and the problems that sodium sand prepared through a preparing technology in the prior art is uneven in particle size, operation is complex, and time is long are solved. The method comprises the steps that under nitrogen atmosphere protection, metal sodium, a dispersing agent and an organic solvent are added in a reaction kettle; and secondly, the temperature is increased till metal sodium is melted, a shearing machine runs within the given time period, shearing is conducted, and a finished product is prepared after slow cooling. The prepared sodium sand is high in activity and fine and uniform in particle, condensation cannot happen again, and the whole preparing process has the beneficial effects of being short in time, safe, reliable, good in repeatability and the like.

Description

technical field [0001] The invention relates to a preparation method of sodium sand, in particular to an industrial preparation method of sodium sand. Background technique [0002] Sodium metal is a common chemical raw material. In chemical reactions, in order to improve the activity and utilization of sodium metal, it is usually prepared into sodium sand, and the quality of sodium sand is related to its particle size and uniformity. The preparation of sodium sand in the industry usually involves melting metallic sodium and beating sodium by mechanical stirring at a stirring speed of 40-50r / min, more than 10 times of intermittent stirring, and then cooling to make sodium sand. The sodium sand prepared by this method has uneven particle size, and even large metal sodium blocks exist, which is easy to coagulate, and the operation is cumbersome and takes a long time. Contents of the invention [0003] The technical problem to be solved by the present invention is: the prepar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/08
CPCB22F9/08B22F2009/0804
Inventor 周永恒谈平忠谈平安
Owner CHENGDU ORGANOCHEM CO LTD
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