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Method for producing spherical activated carbon

A manufacturing method, activated carbon technology, applied in chemical instruments and methods, carbon compounds, carbon active ingredients, etc., can solve problems such as heavy burden on patients

Inactive Publication Date: 2007-03-28
KUREHA KAGAKU KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for such a hemodialysis type artificial organ, because a special device is used, professional and technical personnel are required for safety management, and in addition, due to the drainage of blood outside the body, the patient is physically, mentally and economically The disadvantage of heavy burden may not be able to meet the needs of those who need it

Method used

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  • Method for producing spherical activated carbon
  • Method for producing spherical activated carbon
  • Method for producing spherical activated carbon

Examples

Experimental program
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Effect test

Embodiment 1

[0090] 220 g of deionized exchanged water and 58 g of methyl cellulose were put into a 1 L separable flask, and 105 g of styrene, 184 g of 57% divinylbenzene (57% divinyl benzene) were appropriately added therein. Benzene and 43% ethyl vinyl benzene), 1.68g of 2,2'-azobis(2,4-dimethylvaleronitrile), and 63g of 1-butanol as a pore-forming agent, in the system Internally replaced with nitrogen, the two-phase system was stirred at 200 rpm, heated to 55° C. and kept in this state for 20 hours. The resulting resin was filtered, dried with a rotary evaporator, and 1-butanol was removed from the resin by distillation with a vacuum drier, and dried under reduced pressure at 90° C. for 12 hours to obtain 1-butanol with an average particle diameter of 180 μm. Spherical porous synthetic resin. The specific surface area of ​​the porous synthetic resin is about 90m 2 / g.

[0091] 100 g of the obtained spherical porous synthetic resin was charged into a reaction tube with a perforated pl...

Embodiment 2

[0094] Except for stirring the two-phase system at 200 rpm in the above-mentioned Example 1, and stirring at 100 rpm, the operation of the above-mentioned Example 1 was repeated, thereby obtaining spherical activated carbon and surface-modified spherical activated carbon. Table 1 shows the properties of the obtained spherical activated carbon, and Table 2 shows the properties of the obtained surface-modified spherical activated carbon.

Embodiment 3

[0096] Except for stirring the two-phase system at 200 rpm in the above-mentioned Example 1, and stirring at 150 rpm, the operation of the above-mentioned Example 1 was repeated, thereby obtaining spherical activated carbon and surface-modified spherical activated carbon. Table 1 shows the properties of the obtained spherical activated carbon, and Table 2 shows the properties of the obtained surface-modified spherical activated carbon.

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Abstract

Disclosed is a method for producing a spherical activated carbon which is characterized by comprising (1) a step for forming a spherical body composed of a thermally fusible resin; (2) a step for forming a thermally infusible spherical body by oxidizing the thermally fusible resin spherical body; and (3) a step for forming a spherical activated carbon by activating the thermally infusible spherical body. With this method, there can be easily obtained a spherical activated carbon having desired physical properties (such as average particle size, particle size distribution, pore volume or specific surface area).

Description

technical field [0001] The invention relates to a method for producing spherical activated carbon. Background technique [0002] Patients with impaired renal or hepatic function, due to organ dysfunction, accumulate or produce harmful toxic substances in the blood, causing brain lesions such as uremia or disturbance of consciousness. Since the number of these patients tends to increase year by year, it is an important issue to develop organ replacement machines or therapeutic drugs that replace these damaged organs and have the function of expelling toxic substances from the body. Now, as an artificial organ, the most common way to remove toxic substances is through hemodialysis. However, for such a hemodialysis type artificial organ, because special devices are used, professional and technical personnel are required for safety management, and in addition, patients suffer physically, mentally and economically due to the drainage of blood outside the body. The disadvantage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/10B01J20/20A61K33/44A61P1/16A61P13/12C01B32/336
CPCC01P2006/12C01P2006/14C01B31/10A61K33/44C01P2004/60C01P2004/61A61P1/16A61P13/12C01B32/336B01J20/02C01B32/30
Inventor 园部直弘若穗围尚志桑原三惠子太田洋
Owner KUREHA KAGAKU KOGYO KK
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