GB1273576A - Method of controlling density in a column of slurry explosive - Google Patents

Method of controlling density in a column of slurry explosive

Info

Publication number
GB1273576A
GB1273576A GB46720/69A GB4672069A GB1273576A GB 1273576 A GB1273576 A GB 1273576A GB 46720/69 A GB46720/69 A GB 46720/69A GB 4672069 A GB4672069 A GB 4672069A GB 1273576 A GB1273576 A GB 1273576A
Authority
GB
United Kingdom
Prior art keywords
slurry
bore
hole
hydrogen peroxide
density
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.)
Expired
Application number
GB46720/69A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ireco Chemicals
Original Assignee
Ireco Chemicals
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ireco Chemicals filed Critical Ireco Chemicals
Publication of GB1273576A publication Critical patent/GB1273576A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/002—Sensitisers or density reducing agents, foam stabilisers, crystal habit modifiers
    • C06B23/004—Chemical sensitisers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Treatment Of Sludge (AREA)
  • Air Bags (AREA)
  • Glanulating (AREA)

Abstract

1,273,576. Explosive compositions. IRECO CHEMICALS. 23 Sept., 1969 [1 Oct., 1968], No. 46720/69. Heading C1D. In order to control the density of slurry explosive being pumped into a deep bore-hole, a gas generating, substance is added to the slurry at a controlled rate such that the proportion of gas generated decreases from the bottom to top of the bore-hole. For example, small bubbles of oxygen are introduced by adding hydrogen peroxide together with a decomposition catalyst to a slurry containing ammonium nitrate, sodium nitrate, water, guar gum, borax, and an insoluble sensitizer and/or fuel, such as gilsonite, bituminous coal, sulphur, or aluminium powder. Suitable catalysts are KI, MnO 2 , ferric nitrate, and ferrous sulphate, with or without manganous sulphate and hexamethylene tetramine. The rate of introduction of hydrogen peroxide may be reduced grandually as filling of the bore-hole proceeds. Introduction of a higher proportion of aerating agent into the slurry at the bottom of the bore-hole counteracts the increase of density and loss of sensitivity due to the pressure head of the slurry and the stemming. In place of the hydrogen peroxide, a CO 2 -producing agent may be added. Apparatus for pumping the slurry into bore-holes and regulating the amount of gas generating substance is described with reference to drawings. Specification 1,273,577 is referred to.
GB46720/69A 1968-10-01 1969-09-23 Method of controlling density in a column of slurry explosive Expired GB1273576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76419568A 1968-10-01 1968-10-01

Publications (1)

Publication Number Publication Date
GB1273576A true GB1273576A (en) 1972-05-10

Family

ID=25069962

Family Applications (2)

Application Number Title Priority Date Filing Date
GB35119/71A Expired GB1273577A (en) 1968-10-01 1969-09-23 Slurry blasting charge
GB46720/69A Expired GB1273576A (en) 1968-10-01 1969-09-23 Method of controlling density in a column of slurry explosive

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB35119/71A Expired GB1273577A (en) 1968-10-01 1969-09-23 Slurry blasting charge

Country Status (9)

Country Link
US (1) US3617401A (en)
AT (1) AT296117B (en)
BR (1) BR6912826D0 (en)
CA (1) CA919434A (en)
CH (1) CH547762A (en)
DE (1) DE1945491C3 (en)
FR (1) FR2022210A1 (en)
GB (2) GB1273577A (en)
NO (1) NO121827B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1315847A (en) * 1970-06-19 1973-05-02 Ici Ltd Thickened slurry explosives methods for the preparation of such thickened slurry explosives and nozzles for use in such methods
US3890171A (en) * 1971-11-10 1975-06-17 Ireco Chemicals Explosive compositions containing guar gum derivative
US4094713A (en) * 1977-01-21 1978-06-13 The United States Of America As Represented By The Secretary Of The Navy Sensitizing liquid explosives with high gamma gas
US4081299A (en) * 1977-02-14 1978-03-28 Imc Chemical Group, Inc. Aqueous explosive slurrie with inorganic peroxide sensitizer
US4380482A (en) * 1981-01-16 1983-04-19 E. I. Du Pont De Nemours And Company Stabilization of water-bearing explosives having a thickened continuous aqueous phase
US4486317A (en) * 1981-01-16 1984-12-04 E. I. Du Pont De Nemours And Company Stabilization of thickened aqueous fluids
US5874688A (en) * 1993-11-29 1999-02-23 Aeci Explosives Limited Explosives dispersed from a pressurized container
AUPN737395A0 (en) * 1995-12-29 1996-01-25 Ici Australia Operations Proprietary Limited Process and apparatus for the manufacture of emulsion explosive compositions
BR112015018669B1 (en) 2013-02-07 2021-04-06 Dyno Nobel Inc. METHOD OF VARIATION OF EXPLOSIVE EXPLOSIVE ENERGY IN AN EXPLOSION HOLE, EXPLOSIVE DELIVERY SYSTEM AND EXPLOSIVE DELIVERY METHOD
EP2784052A1 (en) * 2013-03-27 2014-10-01 Maxamcorp Holding, S.L. Method for the "on-site" manufacture of water-resistant low-density water-gel explosives
US11358910B1 (en) 2017-12-12 2022-06-14 National Technology & Engineering Solutions Of Sandia, Llc Explosive device comprising an explosive material having controlled explosive properties
PE20231329A1 (en) 2020-11-10 2023-08-28 Dyno Nobel Asia Pacific Pty Ltd SYSTEMS AND METHODS TO DETERMINE WATER DEPTH AND EXPLOSIVE DEPTH IN WELLS
EP4086236A1 (en) * 2021-05-05 2022-11-09 Hypex Bio Explosives Technology AB Sensitizing composition for energetic hydrogen peroxide emulsions

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6514858A (en) * 1964-11-17 1966-05-18
US3288661A (en) * 1965-10-08 1966-11-29 Hercules Inc Aerated aqueous explosive composition with surfactant
US3288658A (en) * 1965-07-20 1966-11-29 Hercules Inc Aerated explosive compositions
GB1107491A (en) * 1965-11-01 1968-03-27 Ici Ltd Explosive compositions
US3390032A (en) * 1967-01-04 1968-06-25 Hercules Inc Gelled aqueous slurry explosive composition containing as a gas generating agent a carbonate or bicarbonate with a nitrite
US3390030A (en) * 1967-01-04 1968-06-25 Hercules Inc Aqueous slurry blasting composition of non-explosive ingredients containing silicon ad an aeration agent
US3390028A (en) * 1967-01-04 1968-06-25 Hercules Inc Aqueous slurry blasting explosive containing silicon and an aeration agent
US3382117A (en) * 1967-01-06 1968-05-07 Intermountain Res And Engineer Thickened aqueous explosive composition containing entrapped gas
US3453158A (en) * 1967-07-03 1969-07-01 Robert B Clay Fueled inorganic oxidizer salt aqueous explosive composition containing independently dispersed gas bubbles and method of making same
US3447978A (en) * 1967-08-03 1969-06-03 Atlas Chem Ind Ammonium nitrate emulsion blasting agent and method of preparing same
US3449181A (en) * 1967-12-29 1969-06-10 Hercules Inc Aqueous slurry type explosive containing the combination of nitrite and sulfamate and/or sulfamic acid as aeration agent

Also Published As

Publication number Publication date
FR2022210A1 (en) 1970-07-31
NO121827B (en) 1971-04-13
CA919434A (en) 1973-01-23
US3617401A (en) 1971-11-02
GB1273577A (en) 1972-05-10
DE1945491C3 (en) 1978-05-18
AT296117B (en) 1972-01-25
BR6912826D0 (en) 1973-08-09
DE1945491A1 (en) 1970-04-09
DE1945491B2 (en) 1977-09-22
CH547762A (en) 1974-04-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years