EP2069266A2 - Explosive - Google Patents
ExplosiveInfo
- Publication number
- EP2069266A2 EP2069266A2 EP07826235A EP07826235A EP2069266A2 EP 2069266 A2 EP2069266 A2 EP 2069266A2 EP 07826235 A EP07826235 A EP 07826235A EP 07826235 A EP07826235 A EP 07826235A EP 2069266 A2 EP2069266 A2 EP 2069266A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- emulsion
- oil
- ammonium nitrate
- process according
- inclusive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B31/00—Compositions containing an inorganic nitrogen-oxygen salt
- C06B31/28—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate
- C06B31/285—Compositions containing an inorganic nitrogen-oxygen salt the salt being ammonium nitrate with fuel oil, e.g. ANFO-compositions
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B47/00—Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosives; Suspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase
- C06B47/14—Compositions in which the components are separately stored until the moment of burning or explosion, e.g. "Sprengel"-type explosives; Suspensions of solid component in a normally non-explosive liquid phase, including a thickened aqueous phase comprising a solid component and an aqueous phase
- C06B47/145—Water in oil emulsion type explosives in which a carbonaceous fuel forms the continuous phase
Definitions
- THIS INVENTION relates broadly to ammonium nitrate/fuel oil explosive, also known as ANFO explosive, and hereinafter referred to as ANFO explosive. More particularly, the invention relates to a process for producing an ANFO explosive, and to an ANFO explosive when produced in accordance with the process.
- a process for producing an ammonium nitrate fuel oil (ANFO) explosive including: admixing an oil with water to form a fuel comprising an emulsion; and admixing the emulsion with solid particulate ammonium nitrate to absorb the emulsion into the ammonium nitrate to form an ANFO explosive.
- ANFO ammonium nitrate fuel oil
- the oil is used lubricating oil.
- the lubricating oil may be of the type employed for the lubrication of motor vehicles, such as utility vehicles of the kind used in mines, or for the lubrication of similar machinery.
- the particulate ammonium nitrate in turn will typically be in the form of porous prills of the type conventionally used for the manufacture of ANFO explosives.
- the relative proportions of emulsion and ammonium nitrate employed will be more or less conventional, such that, in the product ANFO explosive, the oil forms 5-8% by mass, typically 5-7% by mass, e.g. 6% thereof. In the emulsion, the oil may form 55-86% by mass, preferably 72-78% by mass, e.g. 75% thereof. The balance is thus naturally water. Thus, when the oil forms 75% by mass of the emulsion, water forms 25% by mass thereof.
- the emulsion may thus be either a water-in-oil emulsion or an oil-in-water emulsion, depending on, amongst others, the relative proportions of oil and water used.
- Admixing the oil with the water to form the emulsion may be by means of high-shear mixing, eg by using a high-shear mixer.
- the admixing may be effected in the presence of a suitable emulsifier/surfactant, which may form 0.2-1 .0% by mass of the emulsion, preferably 0.3-0.8%, e.g. 0.5% thereof.
- emulsifier/surfactant can be added to the oil, to the water and/or to an oil/water mixture, at least a portion of the emulsifier/surfactant may already be present in the oil, so that, at most, only any shortfall in the emulsifier/surfactant is then added to the oil, to the water or to the oil/water mixture.
- Admixing the emulsion with the porous prilled ammonium nitrate may be in conventional fashion by pumping the emulsion from a source tank and spraying it by means of a nozzle on to the ammonium nitrate which is moved along by the flutes of an auger to provide additional mixing.
- a concrete mixer or the like may be used to prepare the ANFO explosive on a batch scale.
- a PPAN:fuel ratio of 95:5-85:15, preferably 94:6-91 :9, e.g. 92:8, may be used.
- the invention extends also to an ANFO explosive when produced in accordance with the process described herein.
- Mine utility vehicle waste lubricating oil was mixed in a high-shear mixer with water using an emulsifier/surfactant, to form a water-in-oil emulsion.
- the mixer used was an off-the-shelf mixer marketed under the trade designation Jones Industrial
- the emulsion was admixed with PPAN by pumping the emulsion from a source tank and spraying it by means of a nozzle on to the ammonium nitrate prills which were moved along by the flutes of an auger to provide additional mixing, to cause absorption of the emulsion into the PPAN, in a PPAN:emulsion mass ratio of 92:8.
- the emulsion was found to be absorbed almost immediately into the PPAN to form an ANFO explosive.
- the ANFO explosive was subjected to detonation tests in comparison with standard ANFO explosive made from PPAN and a fuel comprising Shellsol 2325 (trademark) mining solvent, and was found to behave in comparable fashion as far as plate detonation tests and velocity of detonation (VOD) were concerned.
- VOD velocity of detonation
- ANFO explosive which is generated in large volumes, has been used in the past for the manufacture of ANFO explosive.
- diesel or other virgin oil such as the mining solvent available in South Africa under the trade mark Shellsol 2325 from Shell South Africa Energy (Pty) Limited of Shell Court, 33 Baker Street, Rosebank 2196, PO Box 747, Saxonwold 2132, South Africa.
- the ANFO explosive comprises, as is typically the case, 5-7% by mass fuel oil, the balance being PPAN, no more than about 2-3% of the ANFO explosive can be waste mine utility vehicle oil, the remaining 3-4% being required to be virgin diesel or Shellsol.
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL07826235T PL2069266T3 (en) | 2006-09-04 | 2007-09-03 | Process for the production of an explosive |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA200607393 | 2006-09-04 | ||
PCT/IB2007/053534 WO2008029339A2 (en) | 2006-09-04 | 2007-09-03 | Explosive |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2069266A2 true EP2069266A2 (en) | 2009-06-17 |
EP2069266B1 EP2069266B1 (en) | 2014-03-05 |
Family
ID=39157651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07826235.9A Not-in-force EP2069266B1 (en) | 2006-09-04 | 2007-09-03 | Process for the production of an explosive |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP2069266B1 (en) |
AP (1) | AP2766A (en) |
AR (1) | AR062641A1 (en) |
AU (1) | AU2007293146B2 (en) |
BR (1) | BRPI0714743A2 (en) |
CA (1) | CA2662067A1 (en) |
CL (1) | CL2007002539A1 (en) |
DK (1) | DK2069266T3 (en) |
PE (1) | PE20080485A1 (en) |
PL (1) | PL2069266T3 (en) |
WO (1) | WO2008029339A2 (en) |
ZA (1) | ZA200901785B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX2016017150A (en) * | 2014-06-25 | 2017-04-06 | Exsa S A | Method for producing an anfo explosive using ammonium nitrate and residual oils, and product thus produced. |
CN104211549B (en) * | 2014-09-04 | 2016-08-31 | 葛洲坝易普力股份有限公司 | The preparation method of the mixed loading emulsion explosive |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL130040C (en) * | 1959-01-07 | |||
US3095335A (en) * | 1960-03-21 | 1963-06-25 | Airmite Midwest Inc | Blasting agent of multi-sized and multidensity ammonium nitrate with fuel oil |
US4830687A (en) * | 1987-11-23 | 1989-05-16 | Atlas Powder Company | Stable fluid systems for preparing high density explosive compositions |
US4775431A (en) * | 1987-11-23 | 1988-10-04 | Atlas Powder Company | Macroemulsion for preparing high density explosive compositions |
US5486247A (en) * | 1992-02-06 | 1996-01-23 | Engsbraten; Bjoern | Explosive composition, manufacture and use thereof |
CA2064609C (en) * | 1992-04-01 | 1996-10-29 | Sydney Oliver Smith | Explosive composition |
US5670739A (en) * | 1996-02-22 | 1997-09-23 | Nelson Brothers, Inc. | Two phase emulsion useful in explosive compositions |
US6982015B2 (en) * | 2001-05-25 | 2006-01-03 | Dyno Nobel Inc. | Reduced energy blasting agent and method |
-
2007
- 2007-08-31 CL CL200702539A patent/CL2007002539A1/en unknown
- 2007-09-03 DK DK07826235.9T patent/DK2069266T3/en active
- 2007-09-03 WO PCT/IB2007/053534 patent/WO2008029339A2/en active Application Filing
- 2007-09-03 PE PE2007001180A patent/PE20080485A1/en not_active Application Discontinuation
- 2007-09-03 EP EP07826235.9A patent/EP2069266B1/en not_active Not-in-force
- 2007-09-03 AP AP2009004800A patent/AP2766A/en active
- 2007-09-03 CA CA002662067A patent/CA2662067A1/en not_active Abandoned
- 2007-09-03 BR BRPI0714743-0A patent/BRPI0714743A2/en not_active IP Right Cessation
- 2007-09-03 AU AU2007293146A patent/AU2007293146B2/en not_active Ceased
- 2007-09-03 PL PL07826235T patent/PL2069266T3/en unknown
- 2007-09-04 AR ARP070103900A patent/AR062641A1/en active IP Right Grant
-
2009
- 2009-03-12 ZA ZA2009/01785A patent/ZA200901785B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2008029339A3 * |
Also Published As
Publication number | Publication date |
---|---|
AU2007293146B2 (en) | 2012-09-20 |
WO2008029339A3 (en) | 2008-12-11 |
DK2069266T3 (en) | 2014-04-28 |
PE20080485A1 (en) | 2008-05-29 |
CL2007002539A1 (en) | 2008-07-04 |
BRPI0714743A2 (en) | 2013-05-07 |
WO2008029339A2 (en) | 2008-03-13 |
CA2662067A1 (en) | 2008-03-13 |
PL2069266T3 (en) | 2014-08-29 |
AU2007293146A1 (en) | 2008-03-13 |
AR062641A1 (en) | 2008-11-19 |
EP2069266B1 (en) | 2014-03-05 |
ZA200901785B (en) | 2010-02-24 |
AP2009004800A0 (en) | 2009-04-30 |
AP2766A (en) | 2013-09-30 |
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