Methods of blasting using nitrogen-free explosives
First Claim
1. A method of blasting employing commercial or mining explosive compositions, while substantially eliminating the emission of nitrogen during the use of such explosives, comprising the steps of:
- formulating an explosive composition comprising a substantially nitrogen-free oxidizer and a substantially nitrogen-free fuel said explosive consisting essentially of from about 45% to about 60% of at least one nitrogen-free perchlorate;
from about 15% to about 25% fuel;
from about 20% to about 35% water;
from about 0.1% to about 5% binder;
pumping a quantity of said explosive composition to the desired blasting location; and
initiating the explosive composition.
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Abstract
A method of blasting using non-nitrogen containing explosives which protect the environment from pollution of nitrogen compounds is provided. The method includes the following steps: (1) combining an oxidizer, a fuel, water, and a binder such that an explosive is formed which is substantially free of nitrogen; (2) placing the explosive in a location selected for blasting; and (3) initiating said explosive. The nitrogen-free oxidizer may be a perchlorate such as sodium perchlorate. Using this method, the explosive may be a water gel, emulsion, a dry explosive, or a liquid oxygen explosive.
41 Citations
15 Claims
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1. A method of blasting employing commercial or mining explosive compositions, while substantially eliminating the emission of nitrogen during the use of such explosives, comprising the steps of:
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formulating an explosive composition comprising a substantially nitrogen-free oxidizer and a substantially nitrogen-free fuel said explosive consisting essentially of from about 45% to about 60% of at least one nitrogen-free perchlorate;
from about 15% to about 25% fuel;
from about 20% to about 35% water;
from about 0.1% to about 5% binder;pumping a quantity of said explosive composition to the desired blasting location; and initiating the explosive composition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification
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- Resources
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Current AssigneeMining Services International Corp. (Cyanco Holding Corporation)
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Original AssigneeMining Services International Corp. (Cyanco Holding Corporation)
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InventorsDay, John T.
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Primary Examiner(s)Nelson, Peter A.
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Application NumberUS08/850,240Time in Patent Office795 DaysField of Search102/313, 149/77, 149/85, 149/109.6, 264/3.3US Class Current102/313CPC Class CodesC06B 29/02 of an alkali metalC06B 47/14 comprising a solid componen...C06B 47/145 Water in oil emulsion type ...
