WO2003051793A3 - Method of preparing a sensitised explosive - Google Patents

Method of preparing a sensitised explosive Download PDF

Info

Publication number
WO2003051793A3
WO2003051793A3 PCT/ZA2002/000191 ZA0200191W WO03051793A3 WO 2003051793 A3 WO2003051793 A3 WO 2003051793A3 ZA 0200191 W ZA0200191 W ZA 0200191W WO 03051793 A3 WO03051793 A3 WO 03051793A3
Authority
WO
WIPO (PCT)
Prior art keywords
explosive
microspheres
preparing
sensitised
expanded
Prior art date
Application number
PCT/ZA2002/000191
Other languages
French (fr)
Other versions
WO2003051793A2 (en
Inventor
Charles Michael Lownds
Original Assignee
Sasol Chemical Ind Ltd
Charles Michael Lownds
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 Sasol Chemical Ind Ltd, Charles Michael Lownds filed Critical Sasol Chemical Ind Ltd
Priority to BR0215007-7A priority Critical patent/BR0215007A/en
Priority to MXPA04005834A priority patent/MXPA04005834A/en
Priority to CA002470825A priority patent/CA2470825A1/en
Priority to AU2002351427A priority patent/AU2002351427A1/en
Priority to EP02787086A priority patent/EP1458659A2/en
Publication of WO2003051793A2 publication Critical patent/WO2003051793A2/en
Publication of WO2003051793A3 publication Critical patent/WO2003051793A3/en

Links

Classifications

    • 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
    • C06B23/003—Porous or hollow inert particles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Colloid Chemistry (AREA)
  • Disintegrating Or Milling (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

According to the present invention there is provided a method of preparing a sensitised explosive comprising the steps of providing thermally expandable microspheres (14) which, when expanded, are suitable to reduce the density of an explosive and mixing the microspheres with steam (12) to cause thermal expansion of the microspheres and to provide a resulting stream of wet expanded microspheres. The resulting stream of wet expanded microspheres is then introduced into an explosive (18) to provide a sensitised explosive (23).
PCT/ZA2002/000191 2001-12-17 2002-11-29 Method of preparing a sensitised explosive WO2003051793A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BR0215007-7A BR0215007A (en) 2001-12-17 2002-11-29 Method of preparing a sensitized explosive
MXPA04005834A MXPA04005834A (en) 2001-12-17 2002-11-29 Method of preparing a sensitised explosive.
CA002470825A CA2470825A1 (en) 2001-12-17 2002-11-29 Method of preparing a sensitised explosive
AU2002351427A AU2002351427A1 (en) 2001-12-17 2002-11-29 Method of preparing a sensitised explosive
EP02787086A EP1458659A2 (en) 2001-12-17 2002-11-29 Method of preparing a sensitised explosive

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33974901P 2001-12-17 2001-12-17
US60/339,749 2001-12-17

Publications (2)

Publication Number Publication Date
WO2003051793A2 WO2003051793A2 (en) 2003-06-26
WO2003051793A3 true WO2003051793A3 (en) 2004-02-12

Family

ID=23330414

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2002/000191 WO2003051793A2 (en) 2001-12-17 2002-11-29 Method of preparing a sensitised explosive

Country Status (10)

Country Link
EP (1) EP1458659A2 (en)
CN (1) CN1604885A (en)
AR (1) AR037780A1 (en)
AU (1) AU2002351427A1 (en)
BR (1) BR0215007A (en)
CA (1) CA2470825A1 (en)
MX (1) MXPA04005834A (en)
PE (1) PE20030685A1 (en)
RU (1) RU2004121964A (en)
WO (1) WO2003051793A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103193564B (en) * 2012-01-05 2015-04-15 薛世忠 Preparation method of emulsion explosives with different densities, and emulsion explosives with different densities
CN102731223A (en) * 2012-02-27 2012-10-17 湖北凯龙化工集团股份有限公司 Method for producing emulsion explosive by using resin microspheres and dedicated emulsion sensitization machine thereof
US9365453B2 (en) 2012-04-19 2016-06-14 Construction Research & Technology Gmbh Admixture and method for freeze-thaw damage resistance and scaling damage resistance of cementitious compositions
CA2869842C (en) * 2012-04-19 2017-05-30 Construction Research & Technology Gmbh Apparatus and system for expanding expandable polymeric microspheres
US9333685B2 (en) 2012-04-19 2016-05-10 AkzoNobel Chemicals International B.V. Apparatus and system for expanding expandable polymeric microspheres
CN102746074B (en) * 2012-08-06 2015-07-15 长沙亦川机电设备科技有限责任公司 Method for sensitizing explosives
CN102875265A (en) * 2012-10-24 2013-01-16 雅化集团三台化工有限公司 Wet expansion process of resin microspheres
CN102910992A (en) * 2012-10-24 2013-02-06 雅化集团三台化工有限公司 Process for physical sensitization of emulsion explosive by using resin microsphere
PL3008029T3 (en) * 2013-06-12 2017-09-29 Akzo Nobel Chemicals International B.V. Method and a device for preparation of expanded microspheres
WO2015082579A1 (en) 2013-12-06 2015-06-11 Construction Research & Technology Gmbh Method of manufacturing cementitious compositions
CA2969302C (en) * 2014-12-11 2023-02-28 Akzo Nobel Chemicals International B.V. Apparatus and method for expanding thermally expandable thermoplastic microspheres
WO2016091847A1 (en) 2014-12-11 2016-06-16 Akzo Nobel Chemicals International B.V. Apparatus and method for expanding thermally expandable thermoplastic microspheres to expanded thermoplastic microspheres
CN105272783A (en) * 2015-11-10 2016-01-27 天津宏泰华凯科技有限公司 Emulsification explosive-making system of emulsion explosive
CN113860976A (en) * 2021-11-24 2021-12-31 安徽理工大学 Preparation method of hollow polymer microsphere sensitized emulsion explosive for explosive welding

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1344148A (en) * 1970-10-15 1974-01-16 Dow Chemical Co Explosive compositon
EP0112807A2 (en) * 1982-11-26 1984-07-04 Casco Nobel Aktiebolag (reg. number 556026-1876) A process for expanding microspheres
EP0320473A1 (en) * 1987-11-09 1989-06-14 Casco Nobel Ab A process for drying and expanding thermoplastic microspheres
EP0348372A2 (en) * 1988-06-23 1989-12-27 Casco Nobel Ab A process and a device for preparation of expanded thermoplastic microspheres
EP0486080A2 (en) * 1990-11-12 1992-05-20 Casco Nobel Ab Expandable thermoplastic microspheres and a method for the production and use thereof
US5472529A (en) * 1991-06-26 1995-12-05 Asahi Kasei Kogyo Kabushiki Kaisha Explosive composition and method for producing the same
EP0970934A1 (en) * 1998-07-09 2000-01-12 Dyno Nobel Inc. Method for forming an emulsion explosive composition

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1344148A (en) * 1970-10-15 1974-01-16 Dow Chemical Co Explosive compositon
EP0112807A2 (en) * 1982-11-26 1984-07-04 Casco Nobel Aktiebolag (reg. number 556026-1876) A process for expanding microspheres
US4513106A (en) * 1982-11-26 1985-04-23 Kemanord Ab Process for expanding microspheres
EP0320473A1 (en) * 1987-11-09 1989-06-14 Casco Nobel Ab A process for drying and expanding thermoplastic microspheres
EP0348372A2 (en) * 1988-06-23 1989-12-27 Casco Nobel Ab A process and a device for preparation of expanded thermoplastic microspheres
EP0486080A2 (en) * 1990-11-12 1992-05-20 Casco Nobel Ab Expandable thermoplastic microspheres and a method for the production and use thereof
US5472529A (en) * 1991-06-26 1995-12-05 Asahi Kasei Kogyo Kabushiki Kaisha Explosive composition and method for producing the same
EP0970934A1 (en) * 1998-07-09 2000-01-12 Dyno Nobel Inc. Method for forming an emulsion explosive composition
US6113715A (en) * 1998-07-09 2000-09-05 Dyno Nobel Inc. Method for forming an emulsion explosive composition

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199333, Derwent World Patents Index; Class A32, AN 1993-262623, XP002247478, ANONYMOUS: "Method of expanding thermoplastic microspheres - comprises dispersing in liq., pumping to pressure zone with steam and air, and feeding to mixer" *
RESEARCH DISCLOSURE, vol. 351, no. 025, 10 July 1993 (1993-07-10), Emsworth, GB *

Also Published As

Publication number Publication date
PE20030685A1 (en) 2003-08-13
RU2004121964A (en) 2005-06-10
CN1604885A (en) 2005-04-06
AU2002351427A1 (en) 2003-06-30
CA2470825A1 (en) 2003-06-26
MXPA04005834A (en) 2004-09-13
AR037780A1 (en) 2004-12-01
BR0215007A (en) 2004-12-28
WO2003051793A2 (en) 2003-06-26
EP1458659A2 (en) 2004-09-22

Similar Documents

Publication Publication Date Title
WO2003051793A3 (en) Method of preparing a sensitised explosive
GB2395734A (en) Method of expanding a tubular element in a wellbore
CA2510024A1 (en) Method and device for pre-expanding thermoplastic microspheres
CA2349188A1 (en) Wellbore system including a conduit and an expandable device
IL181105A0 (en) Method of synchronizing fin fold-out on a fin-stabilized artillery shell, designed in accordance
ATE455593T1 (en) THERMALLY EXPANDABLE MICRO SPHERE AND METHOD FOR THE PRODUCTION THEREOF
CA2447270A1 (en) Expanding tubing
EP0964517A3 (en) Delay locked loop
CA2455518A1 (en) Tubing expansion
WO2002043990A3 (en) Gas generator and method of assembly
WO2003029731A3 (en) Electroosmotic microchannel cooling system
WO2003042486A3 (en) Collapsible expansion cone
CA2356144A1 (en) Method and apparatus for expanding an isolation tubing
WO2003007783A3 (en) Surgical tool for use in expanding a cannula
CA2418842A1 (en) Method for converting thermal energy into mechanical work
NO20053325D0 (en) Heat insulating structures comprising layers of expanded graphite particles compressed to different densities and heat insulating elements made from these structures.
EP1517001A3 (en) Downhole expander device
ATE152214T1 (en) METAL EXPANSION ANCHOR AND METHOD FOR PRODUCING THE SAME
EP0173640A3 (en) Method for treating exhaust gas
CA2440375A1 (en) Tube manufacture
WO2003001070A3 (en) Anchoring system and methods therefor
EP1013890A3 (en) Abradable seal for turbomachines
EP1120177A3 (en) Method of producing a cooling liner
PL346695A1 (en) Process for the preparation of expanded polyvinylarene particles
CA2341275A1 (en) Process for the preparation of expandable polyvinylarene particles

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 200404432

Country of ref document: ZA

WWE Wipo information: entry into national phase

Ref document number: PA/a/2004/005834

Country of ref document: MX

WWE Wipo information: entry into national phase

Ref document number: 2470825

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 20028252543

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 1527/CHENP/2004

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 2002787086

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2002351427

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 2004121964

Country of ref document: RU

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Ref document number: JP