GB2187278B - Method and apparatus for monitoring deflocculated particles in suspension - Google Patents

Method and apparatus for monitoring deflocculated particles in suspension

Info

Publication number
GB2187278B
GB2187278B GB8701015A GB8701015A GB2187278B GB 2187278 B GB2187278 B GB 2187278B GB 8701015 A GB8701015 A GB 8701015A GB 8701015 A GB8701015 A GB 8701015A GB 2187278 B GB2187278 B GB 2187278B
Authority
GB
United Kingdom
Prior art keywords
suspension
monitoring
deflocculated particles
deflocculated
particles
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 - Lifetime
Application number
GB8701015A
Other versions
GB2187278A (en
GB8701015D0 (en
Inventor
Barry Randall Jennings
Kevin Parslow
Terence Wilfred Webb
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.)
Imerys Minerals Ltd
Original Assignee
ECC International Ltd
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 ECC International Ltd filed Critical ECC International Ltd
Publication of GB8701015D0 publication Critical patent/GB8701015D0/en
Publication of GB2187278A publication Critical patent/GB2187278A/en
Application granted granted Critical
Publication of GB2187278B publication Critical patent/GB2187278B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02—Investigating particle size or size distribution
    • G01N15/0205—Investigating particle size or size distribution by optical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N2015/0092—Monitoring flocculation or agglomeration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/21—Polarisation-affecting properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB8701015A 1986-01-17 1987-01-19 Method and apparatus for monitoring deflocculated particles in suspension Expired - Lifetime GB2187278B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB868601087A GB8601087D0 (en) 1986-01-17 1986-01-17 Monitoring deflocculated particles in suspension

Publications (3)

Publication Number Publication Date
GB8701015D0 GB8701015D0 (en) 1987-02-18
GB2187278A GB2187278A (en) 1987-09-03
GB2187278B true GB2187278B (en) 1990-04-04

Family

ID=10591515

Family Applications (2)

Application Number Title Priority Date Filing Date
GB868601087A Pending GB8601087D0 (en) 1986-01-17 1986-01-17 Monitoring deflocculated particles in suspension
GB8701015A Expired - Lifetime GB2187278B (en) 1986-01-17 1987-01-19 Method and apparatus for monitoring deflocculated particles in suspension

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB868601087A Pending GB8601087D0 (en) 1986-01-17 1986-01-17 Monitoring deflocculated particles in suspension

Country Status (3)

Country Link
EP (1) EP0253867A1 (en)
GB (2) GB8601087D0 (en)
WO (1) WO1987004521A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940327A (en) * 1988-10-25 1990-07-10 Trc Companies Inc. Method and apparatus for real time asbestos aerosol monitoring
DE102013202423A1 (en) * 2013-02-14 2014-08-14 Siemens Aktiengesellschaft Detector for detecting particles in gas of measuring chamber during semiconductor manufacturing process, has pair of electrodes arranged in measuring chamber for generating electric field along gas flow direction

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1316752A (en) * 1970-02-12 1973-05-16 Atomic Energy Authority Uk Apparatus for analysing suspended particles
GB2141224A (en) * 1983-04-29 1984-12-12 English Clays Lovering Pochin Monitoring deflocculated particles in suspension

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612688A (en) * 1968-11-13 1971-10-12 American Standard Inc Suspended organic particles monitor using circularly polarized light
US4061543A (en) * 1976-03-19 1977-12-06 General Electric Company Bioassay for drugs and antibiotics

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1316752A (en) * 1970-02-12 1973-05-16 Atomic Energy Authority Uk Apparatus for analysing suspended particles
GB2141224A (en) * 1983-04-29 1984-12-12 English Clays Lovering Pochin Monitoring deflocculated particles in suspension

Also Published As

Publication number Publication date
EP0253867A1 (en) 1988-01-27
GB2187278A (en) 1987-09-03
WO1987004521A1 (en) 1987-07-30
GB8701015D0 (en) 1987-02-18
GB8601087D0 (en) 1986-02-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940119