|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||149/1084 ; 149/2 ; 149/46 ; 149/1096|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 4 인용 특허 : 8|
This invention relates to a method of reducing the formation of toxic nitrogen oxides in after-blast fumes by using an emulsion blasting agent that has an appreciable amount of urea in its discontinuous oxidizer salt phase.
A method of reducing the formation of nitrogen oxide in after-blast fumes resulting from the detonation of an emulsion blasting agent, which method comprises using an emulsion blasting agent having (a) an emulsion phase comprising an emulsifier; a continuous organic fuel phase; and a discontinuous oxidizer salt solution phase that comprises ammonium nitrate and water in an amount of from about 9% to about 20% by weight of the emulsion phase, (b) ammonium nitrate prills in an amount of from about 20% to about 50% by weight of the agent, and (c) urea in an...