CA2450242A1 - Apparatus and method for separating substances from particulate solids - Google Patents

Apparatus and method for separating substances from particulate solids Download PDF

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Publication number
CA2450242A1
CA2450242A1 CA002450242A CA2450242A CA2450242A1 CA 2450242 A1 CA2450242 A1 CA 2450242A1 CA 002450242 A CA002450242 A CA 002450242A CA 2450242 A CA2450242 A CA 2450242A CA 2450242 A1 CA2450242 A1 CA 2450242A1
Authority
CA
Canada
Prior art keywords
fluid
particulate matter
admixture
mixing
hydrocarbon
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
Application number
CA002450242A
Other languages
French (fr)
Other versions
CA2450242C (en
Inventor
Russell M. Graham
Ernest J. Taylor-Smith (Deceased)
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.)
Aerosion Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2450242A1 publication Critical patent/CA2450242A1/en
Application granted granted Critical
Publication of CA2450242C publication Critical patent/CA2450242C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0215—Solid material in other stationary receptacles
    • B01D11/0223—Moving bed of solid material
    • B01D11/0226—Moving bed of solid material with the general transport direction of the solids parallel to the rotation axis of the conveyor, e.g. worm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0261—Solvent extraction of solids comprising vibrating mechanisms, e.g. mechanical, acoustical

Abstract

A method for separating a substance such as a hydrocarbon from a particulate material such as soil is provided. An aqueous slurry is formed and a shear force is applied to the slurry, such as in a reversible helical screw conveyor (13), while the slurry is vibrated. The substance thus separated can then be removed from the particulate material.

Claims (45)

What is claimed is:
1. A method of separating a hydrocarbon from particulate matter compris-ing the steps of:
a) introducing a fluid to particulate matter in a container wherein said particulate matter contains a hydrocarbon and said fluid comprises water;
b) mixing said fluid and said particulate matter to form a fluid admixture in said container;
c) after an initial period of mixing, alternately applying sub-sonic vibration to said fluid admixture in said container and then ceas-ing to apply vibration while said mixing is continued; and d) separating said hydrocarbon from said fluid admixture by flota-tion.
2. The method of claim 1 comprising the further steps of:
e) removing said fluid from said fluid admixture; and f) removing said particulate matter from. said container.
3. The method of claim 2 further comprising the step of consolidating said particulate matter prior to removing from said container.
4. The method of claim 1 wherein said particulate matter is comprised in a slurry prior to step a).
5. The method of claim 1 wherein said particulate matter is comprised in an emulsion prior to step a).
6. The method of claim 1 wherein said mixing ceases while vibration is being applied to said fluid admixture.
7. The method of claim 1 wherein said mixing is continuous while vibra-tion is being applied to said fluid admixture.
8. The method of claim 1 wherein said mixing is done by a helical screw conveyor in said container.
9. The method of claim 8 wherein said helical screw conveyor transports said particulate matter horizontally while mixing.
10. The method of claim 9 wherein said container is a trough.
11. The method of claim 10 wherein said screw conveyor periodically reverses direction while mixing.
12. The method of claim 1 wherein there are at least three periods of application of vibration to said fluid admixture.
13. The method of claim 12 wherein the duration of said periods of applica-tion of vibration to said fluid admixture are between 10 and 60 seconds.
14. The method of claim 10 wherein said hydrocarbon is separated by flotation over the upper edges of the trough.
15. The method of claim 14 comprising the further steps of e) removing said fluid from said fluid admixture; and f) removing said particulate matter from said trough by conveying said particulate matter by means of said screw conveyor.
16. The method of claim 1 comprising the further step of ceasing said mixing and then applying a period of vibration prior to said separation step.
17. The method of claim 1 wherein said particulate matter is soil.
I8. The method of claim 17 wherein said fluid comprises water.
19. The method of claim 18, further comprising the step of liquidizing said soil and said hydrocarbon in said fluid admixture to form an aqueous slurry.
20. The method of claim 1 wherein a surfactant is introduced into said fluid admixture.
21. The method of claim 1 wherein an oil adapted to cause heavy hydrocar-bons to float in said fluid admixture is introduced into said fluid admixture.
22. The method of claim 1 wherein a dissolved solid is introduced into said fluid admixture.
23. The method of claim 1 wherein said fluid comprises water and a surfactant.
24. The method of claim 1 wherein said fluid comprises water and at least one dissolved solid to thereby raise the density of said fluid.
25. The method of claim 1 wherein said fluid comprises water, a surfactant, and at least one dissolved solid to thereby raise the density of said fluid.
26. The method of claim 1 wherein said fluid comprises saltwater.
27. The method of claim 1 wherein said fluid comprises saltwater and a surfactant.
28. The method of claim 1 wherein said fluid comprises saltwater and at least one dissolved solid which raises the density of said fluid.
29. The method of claim 1 wherein said fluid comprises saltwater, a surfactant, and at least one dissolved solid which raises the density of said fluid.
30. The method of claims 20, 23, 25, 27 or 29 wherein said surfactant is selected from the group of soap, cresylate, sulfide, sodium carbonate, sodium hydroxide, sodium silicate, or electrolyte bearing an electric charge.
31. The method of claims 22, 24, 28 or 29 wherein said dissolved solid comprises an inorganic salt.
32. The method of claims 22, 24, 28 or 29 wherein said dissolved solid comprises sodium chloride.
33. The method of claim 21 wherein said oil is a light oil.
34. The method of claim 21 wherein said oil is a coker oil.
35. The method of claim 1 wherein said fluid further comprises a dissolved gas.
36. The method of claim 1 wherein the amount of fluid used is in excess of the amount of particulate matter used.
37. The method of claim 19 wherein said aqueous slurry is at a 60:40 percentage volumetric ratio of fluid to particulate matter.
38. The method of claim 19 wherein said aqueous slurry has a temperature in a range from ambient temperature to 50 degrees Celsius.
39. The method of claim 19 wherein said aqueous slurry has a temperature of at least 60 degrees Celsius.
40. An apparatus for separating a hydrocarbon from particulate matter, comprising:
a) receptacle means for receiving a fluid admixture containing said particulate mater;
b) mixing means for mixing a fluid and said particulate matter in said receptacle to form a fluid admixture;
c) means for intermittently applying sub-sonic vibration to said receptacle;
d) means for removing said separated hydrocarbon from said recep-tacle.
41. The apparatus as defined in claim 40 wherein said mixing means comprises a helical screw conveyor
42. The apparatus as defined in claim 41 wherein said helical screw con-veyor comprises a reversible drive.
43. The apparatus as defined in claim 40 wherein said means for applying sub-sonic vibration comprises a vibrator connected to said receptacle.
44. The apparatus as defined in claim 41 wherein said receptacle is a trough.
45. The apparatus as defined in claim 44 wherein said means for removing said separated hydrocarbon from said receptacle comprises a discharge tray for receiving hydrocarbon separated by flotation over the upper edges of said trough.
CA2450242A 2001-06-11 2002-06-10 Apparatus and method for separating substances from particulate solids Expired - Lifetime CA2450242C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/877,086 2001-06-11
US09/877,086 US6904919B2 (en) 2001-06-11 2001-06-11 Apparatus and method for separating substances from particulate solids
PCT/CA2002/000878 WO2002100508A1 (en) 2001-06-11 2002-06-10 Apparatus and method for separating substances from particulate solids

Publications (2)

Publication Number Publication Date
CA2450242A1 true CA2450242A1 (en) 2002-12-19
CA2450242C CA2450242C (en) 2010-12-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2450242A Expired - Lifetime CA2450242C (en) 2001-06-11 2002-06-10 Apparatus and method for separating substances from particulate solids

Country Status (10)

Country Link
US (2) US6904919B2 (en)
EP (1) EP1401552B1 (en)
CN (1) CN100415334C (en)
AT (1) ATE324165T1 (en)
AU (1) AU2002312679B2 (en)
CA (1) CA2450242C (en)
DE (1) DE60210966D1 (en)
MX (1) MXPA03011605A (en)
NO (1) NO330557B1 (en)
WO (1) WO2002100508A1 (en)

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CN109304047A (en) * 2018-11-16 2019-02-05 林爱花 A kind of western medicine formulation solids extraction device
RU195503U1 (en) * 2019-05-31 2020-01-29 Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) Continuous mass transfer apparatus
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Also Published As

Publication number Publication date
NO20035536D0 (en) 2003-12-11
CA2450242C (en) 2010-12-07
CN1538864A (en) 2004-10-20
MXPA03011605A (en) 2005-03-07
AU2002312679B2 (en) 2007-11-29
WO2002100508A1 (en) 2002-12-19
US20050056300A1 (en) 2005-03-17
ATE324165T1 (en) 2006-05-15
NO330557B1 (en) 2011-05-16
US20020185158A1 (en) 2002-12-12
US7118631B2 (en) 2006-10-10
EP1401552A1 (en) 2004-03-31
CN100415334C (en) 2008-09-03
US6904919B2 (en) 2005-06-14
EP1401552B1 (en) 2006-04-26
DE60210966D1 (en) 2006-06-01

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