Method for producing carbon particles by detonation

Patent metadata

Field	Value
Publication number	US-10201791-B2
Application number	US-201515313789-A
Country	US
Kind code	B2
Filing date	May 27, 2015
Priority date	May 30, 2014
Publication date	Feb 12, 2019
Grant date	Feb 12, 2019

Abstract

A production method of a carbon particle by a detonation method includes a step of disposing an explosive substance in a periphery of a raw material substance, and a step of subjecting the explosive substance to a detonation. The explosive substance is a liquid at normal temperature and normal pressure. The raw material substance contains an aromatic compound having 3 or more nitro groups.

First claim

The invention claimed is:

1. A production method of a carbon particle by a detonation method, comprising a step of disposing an explosive substance which is a liquid at normal temperature and normal pressure on a periphery of a raw material substance comprising an aromatic compound having 3 or more nitro groups, and a step of subjecting the explosive substance to a detonation, wherein:
the detonation is performed in a state where the raw material substance and the explosive substance are charged in a chamber,
a coolant is disposed on a periphery of the chamber containing the raw material substance and the explosive substance, and
the explosive substance and the raw material are separated from the coolant.

2. The production method according to claim 1 , wherein the raw material substance comprises at least one kind selected from the group consisting of trinitrotoluene, cyclotrimethylenetrinitramine, cyclotetramethylenetetranitramine, pentaerythritol tetranitrate, and trinitrophenylmethylnitramine.

3. The production method according to claim 1 , wherein the explosive substance comprises at least one kind selected from the group consisting of a mixture of hydrazine and hydrazine nitrate, a mixture of hydrazine and ammonium nitrate, nitromethane, and a mixture of hydrazine and nitromethane.

4. The production method according to claim 1 , wherein an atmosphere in the chamber does not substantially comprise an oxygen gas.

5. The production method according to claim 1 , wherein the coolant is a substance which does not substantially produce an oxidative substance.

6. The production method according to claim 1 , further comprising a step of recovering the carbon particle from a residue obtained in the detonation step.

7. The production method according to claim 2 , further comprising a step of recovering the carbon particle from a residue obtained in the detonation step.

8. The production method according to claim 3 , further comprising a step of recovering the carbon particle from a residue obtained in the detonation step.

9. The production method according to claim 4 , further comprising a step of recovering the carbon particle from a residue obtained in the detonation step.

10. The production method according to claim 5 , further comprising a step of recovering the carbon particle from a residue obtained in the detonation step.

11. The production method according to claim 1 ,
wherein the coolant is water.

12. The production method according to claim 1 ,
wherein the explosive substance is subjected to a detonation prior to the detonation of the raw material substance.

Assignees

• Kobe Steel Ltd
• Aist

Inventors

• Wada Ryutaro
• Ueda Masaya
• Kakudate Yozo
• Fujiwara Shuzo
• Usuba Shu

Classifications

• B01J3/062

  characterised by the composition of the materials to be processed · CPC title

• C01B32/26

  Preparation (by using ultra-high pressure B01J3/06; by crystal growth C30B29/04) · CPC title

• B01J3/08 Primary

  Application of shock waves for chemical reactions or for modifying the crystal structure of substances · CPC title

• C01B32/25 Primary

  Diamond · CPC title