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Preparation method of nano sulfur slurry

A nano-sulfur and slurry technology, which is applied in the preparation/purification of sulfur, mixing methods, chemical instruments and methods, etc., can solve the problems of easy agglomeration of sulfur, limit the effect of sulfur, and insoluble, and achieve easy dispersion and change of physical properties. and chemical properties, the effect of enhanced binding capacity

Active Publication Date: 2010-06-16
上海沪正实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has been valued by people since ancient times, and the smaller the particle size of sulfur, the more prominent its various functions are, but sulfur is easy to agglomerate, and its density is relatively high, and it is less soluble in various solvents (except carbon disulfide)
Therefore, in practice, it is difficult for sulfur to be small particles, evenly and stably suspended in water, which limits the role of sulfur in various fields

Method used

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  • Preparation method of nano sulfur slurry
  • Preparation method of nano sulfur slurry
  • Preparation method of nano sulfur slurry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Weigh 100g of sulfur powder with a particle size of 100um and 860g of water, respectively, and put them into a plastic cup, and quickly stir for 20 minutes with a high-speed emulsifying machine with a rotating speed of 10,000rpm. 20g of powder, 20g of calcium stearate, 400g of ceramic balls (particle size of 1mm), and 300g of ceramic balls (particle size of 0.1mm), put them into a ball mill to seal, place the ball mill tank on a ball mill with a rotating speed of 350rpm, and disperse the grinding. , set the ball milling time to 5h. After the ball mill stops automatically, take out the sulphur slurry, use a vacuum suction filter to remove other impurities in the slurry and recover it.

[0019] After measurement, the particle size of the nano-sulfur slurry prepared in this example is 50 nm, such as figure 2 shown.

Embodiment 2

[0021] Weigh 400g of sulfur powder with a particle size of 20um and 490g of water and put them in a plastic cup, stir quickly for 30 minutes with a high-speed emulsifying machine with a rotating speed of 28000rpm, after stirring, the slurry is moved into a ball mill tank, and then put in carboxymethyl fiber 60g of plain, 50g of zinc stearate, 1500g of agate balls (particle size of 1mm), and 800g of agate balls (particle size of 0.5mm), put them in a ball mill to seal, place the ball mill tank on a ball mill with a rotational speed of 500rpm, and disperse and grind , set the ball milling time to 10h. After the ball mill stops automatically, take out the sulphur slurry, use a vacuum suction filter to remove other impurities in the slurry and recover it.

[0022] After measurement, the particle size of the nano-sulfur slurry prepared in this example is 10 nm, such as figure 1 shown.

Embodiment 3

[0024] Weigh 300g of sulfur powder with a particle size of 60um and 630g of water, respectively, and put them into a plastic cup, and quickly stir for 25 minutes with a high-speed emulsifying machine with a rotating speed of 20,000rpm. Dosage 20g, carboxymethyl cellulose 20g, calcium stearate 15g, zinc stearate 15g, ceramic balls 600g (particle size 0.1mm), agate balls 1400g (particle size 1mm), put them in a ball mill jar and seal them. The jar was placed on a ball mill with a rotating speed set to 400 rpm, dispersed and ground, and the ball milling time was set to 8h. After the ball mill stops automatically, take out the sulphur slurry, use a vacuum suction filter to remove other impurities in the slurry and recover it.

[0025] After measurement, the particle size of the nano-sulfur slurry prepared in this example is 50 nm, such as figure 2 shown.

[0026] In addition, the inventor also used the desktop centrifuge model TDL-50B produced by Shanghai Youpu Scientific Instr...

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Abstract

The invention discloses a preparation method of nano sulfur slurry. The preparation method comprises the following steps of: (1) respectively weighing sulfur powder with the grain diameter of 20-100Mum and water according to the mass ratio of 1: (1.225 to 8.6), pouring the sulfur powder and the water into a vessel, and dispersing for 20-30 minutes by using an emulsifying machine with the rotation speed of 10000-28000rpm; (2) pouring the slurry prepared in the step (1) into a ball milling can, adding a ball milling medium, a dispersing agent and a heat stabilizer with the addition amount of respectively 5-8 times, 2 to 6 percent and 2-5 percent of the sulfur powder by mass, and well sealing the ball milling can; (3) putting the ball milling can into a ball mill with the rotation speed of 300 to 500rpm, dispersedly milling with the ball milling time of 5 to 10h; and (4) removing granular impurities which can not disperse after the ball milling from the sulfur slurry through a vacuum suction filter with the filtering mesh number of 600 meshes, recovering the impurities and preparing the nano sulfur slurry with the grain size of 10nm to 80nm. The prepared sulfur grains are easy to disperse and have good stability and wide application prospect.

Description

technical field [0001] The invention relates to a preparation method of nano-sulfur slurry. Background technique [0002] Inorganic sulfur exists widely and abundantly in nature in pure state or compound form. Sulfur is one of the most important nutrients for plants. As a natural product of nature, sulfur has excellent properties, such as the treatment of impotence, deficiency-cold diarrhea and cold stool; external use to treat scabies, eczema and scabies; it also has the functions of sterilization, anti-mildew and deworming, and has been widely used in various fields. It has been valued by people since ancient times, and the smaller the particle size of sulfur, the more prominent various functions are, but the sulfur is easy to agglomerate, the density is also relatively large, and it is less soluble in various solvents (except carbon disulfide). Therefore, it is difficult to achieve small particles of sulfur in practice, and it is evenly and stably suspended in water, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F3/12C01B17/02A61J3/00A61K8/23
Inventor 李学成郑爱玉丁基哲李佳怡
Owner 上海沪正实业有限公司
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