CA2392246A1 - Procede de separation de sables bitumineux - Google Patents

Procede de separation de sables bitumineux Download PDF

Info

Publication number: CA2392246A1
Authority: CA; Canada
Prior art keywords: clay; waste; dilute aqueous; sediment; process according
Prior art date: 2001-07-02
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.): Abandoned

Application number

CA002392246A

Other languages

English (en)

Inventor

Donald Allen Luke

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.)

Ciba Specialty Chemicals Water Treatments 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.)

2001-07-02

Filing date

2002-06-28

Publication date

2003-01-02

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23168056&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2392246(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

2002-06-28 Application filed by Individual filed Critical Individual

2003-01-02 Publication of CA2392246A1 publication Critical patent/CA2392246A1/fr

Status Abandoned legal-status Critical Current

Links

238000000926 separation method Methods 0.000 title claims abstract description 39
239000004927 clay Substances 0.000 claims abstract description 106
239000002699 waste material Substances 0.000 claims abstract description 77
239000013049 sediment Substances 0.000 claims abstract description 57
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
239000007787 solid Substances 0.000 claims abstract description 52
239000006228 supernatant Substances 0.000 claims abstract description 44
238000011084 recovery Methods 0.000 claims abstract description 27
238000004062 sedimentation Methods 0.000 claims abstract description 23
238000000034 method Methods 0.000 claims description 61
230000008569 process Effects 0.000 claims description 49
229910052500 inorganic mineral Inorganic materials 0.000 claims description 23
239000011707 mineral Substances 0.000 claims description 23
238000002156 mixing Methods 0.000 claims description 11
238000005188 flotation Methods 0.000 claims description 10
239000002253 acid Substances 0.000 claims description 5
238000001704 evaporation Methods 0.000 claims description 4
238000004064 recycling Methods 0.000 claims description 4
230000008020 evaporation Effects 0.000 claims description 3
230000003311 flocculating effect Effects 0.000 claims description 3
229920006318 anionic polymer Polymers 0.000 claims description 2
229920006317 cationic polymer Polymers 0.000 claims description 2
239000008396 flotation agent Substances 0.000 claims description 2
150000001412 amines Chemical class 0.000 claims 1
239000010802 sludge Substances 0.000 description 37
239000010426 asphalt Substances 0.000 description 32
239000004576 sand Substances 0.000 description 24
239000003921 oil Substances 0.000 description 22
239000002245 particle Substances 0.000 description 21
239000000463 material Substances 0.000 description 20
239000011269 tar Substances 0.000 description 14
229920000642 polymer Polymers 0.000 description 13
239000008394 flocculating agent Substances 0.000 description 11
239000000178 monomer Substances 0.000 description 10
238000005189 flocculation Methods 0.000 description 9
230000016615 flocculation Effects 0.000 description 8
238000000605 extraction Methods 0.000 description 7
239000000203 mixture Substances 0.000 description 7
239000011275 tar sand Substances 0.000 description 7
229920002472 Starch Polymers 0.000 description 6
239000002002 slurry Substances 0.000 description 6
235000019698 starch Nutrition 0.000 description 6
239000008107 starch Substances 0.000 description 6
238000011282 treatment Methods 0.000 description 6
238000007792 addition Methods 0.000 description 5
125000000129 anionic group Chemical group 0.000 description 5
125000002091 cationic group Chemical group 0.000 description 5
239000002734 clay mineral Substances 0.000 description 5
230000003750 conditioning effect Effects 0.000 description 5
238000012545 processing Methods 0.000 description 5
239000000243 solution Substances 0.000 description 5
230000032683 aging Effects 0.000 description 4
230000015572 biosynthetic process Effects 0.000 description 4
230000000694 effects Effects 0.000 description 4
239000000126 substance Substances 0.000 description 4
HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 3
230000008901 benefit Effects 0.000 description 3
239000003153 chemical reaction reagent Substances 0.000 description 3
238000010790 dilution Methods 0.000 description 3
239000012895 dilution Substances 0.000 description 3
238000001556 precipitation Methods 0.000 description 3
150000003839 salts Chemical class 0.000 description 3
230000002000 scavenging effect Effects 0.000 description 3
239000000725 suspension Substances 0.000 description 3
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
238000013019 agitation Methods 0.000 description 2
238000013459 approach Methods 0.000 description 2
238000009412 basement excavation Methods 0.000 description 2
238000005119 centrifugation Methods 0.000 description 2
230000001427 coherent effect Effects 0.000 description 2
230000001143 conditioned effect Effects 0.000 description 2
229920001577 copolymer Polymers 0.000 description 2
239000010419 fine particle Substances 0.000 description 2
238000007667 floating Methods 0.000 description 2
239000012530 fluid Substances 0.000 description 2
NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
239000007788 liquid Substances 0.000 description 2
230000007774 longterm Effects 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
229910052751 metal Inorganic materials 0.000 description 2
239000002184 metal Substances 0.000 description 2
238000005065 mining Methods 0.000 description 2
239000003208 petroleum Substances 0.000 description 2
239000000047 product Substances 0.000 description 2
238000005086 pumping Methods 0.000 description 2
230000002441 reversible effect Effects 0.000 description 2
239000011435 rock Substances 0.000 description 2
229910052708 sodium Inorganic materials 0.000 description 2
239000011734 sodium Substances 0.000 description 2
230000007704 transition Effects 0.000 description 2
SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
238000012935 Averaging Methods 0.000 description 1
239000004215 Carbon black (E152) Substances 0.000 description 1
229920002261 Corn starch Polymers 0.000 description 1
101100390778 Drosophila melanogaster Fitm2 gene Proteins 0.000 description 1
CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
240000008042 Zea mays Species 0.000 description 1
235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
235000002017 Zea mays subsp mays Nutrition 0.000 description 1
NJSSICCENMLTKO-HRCBOCMUSA-N [(1r,2s,4r,5r)-3-hydroxy-4-(4-methylphenyl)sulfonyloxy-6,8-dioxabicyclo[3.2.1]octan-2-yl] 4-methylbenzenesulfonate Chemical compound C1=CC(C)=CC=C1S(=O)(=O)O[C@H]1C(O)[C@@H](OS(=O)(=O)C=2C=CC(C)=CC=2)[C@@H]2OC[C@H]1O2 NJSSICCENMLTKO-HRCBOCMUSA-N 0.000 description 1
238000010521 absorption reaction Methods 0.000 description 1
238000009825 accumulation Methods 0.000 description 1
150000003926 acrylamides Chemical class 0.000 description 1
230000001154 acute effect Effects 0.000 description 1
125000003368 amide group Chemical group 0.000 description 1
229960000892 attapulgite Drugs 0.000 description 1
229910001570 bauxite Inorganic materials 0.000 description 1
239000004566 building material Substances 0.000 description 1
229920003118 cationic copolymer Polymers 0.000 description 1
239000003518 caustics Substances 0.000 description 1
230000008859 change Effects 0.000 description 1
238000006243 chemical reaction Methods 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
229910001919 chlorite Inorganic materials 0.000 description 1
229910052619 chlorite group Inorganic materials 0.000 description 1
QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
238000005352 clarification Methods 0.000 description 1
ZPUCINDJVBIVPJ-LJISPDSOSA-N ***e Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 1
238000005056 compaction Methods 0.000 description 1
238000007596 consolidation process Methods 0.000 description 1
238000010276 construction Methods 0.000 description 1
238000011109 contamination Methods 0.000 description 1
235000005822 corn Nutrition 0.000 description 1
239000010779 crude oil Substances 0.000 description 1
230000007423 decrease Effects 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
238000001514 detection method Methods 0.000 description 1
238000011161 development Methods 0.000 description 1
230000018109 developmental process Effects 0.000 description 1
125000004985 dialkyl amino alkyl group Chemical group 0.000 description 1
GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
239000006185 dispersion Substances 0.000 description 1
238000011143 downstream manufacturing Methods 0.000 description 1
238000001035 drying Methods 0.000 description 1
238000007720 emulsion polymerization reaction Methods 0.000 description 1
230000003628 erosive effect Effects 0.000 description 1
150000002148 esters Chemical class 0.000 description 1
238000011049 filling Methods 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
229920006158 high molecular weight polymer Polymers 0.000 description 1
229930195733 hydrocarbon Natural products 0.000 description 1
150000002430 hydrocarbons Chemical class 0.000 description 1
229910052739 hydrogen Inorganic materials 0.000 description 1
239000001257 hydrogen Substances 0.000 description 1
230000007062 hydrolysis Effects 0.000 description 1
238000006460 hydrolysis reaction Methods 0.000 description 1
125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
230000006872 improvement Effects 0.000 description 1
238000002347 injection Methods 0.000 description 1
239000007924 injection Substances 0.000 description 1
230000007246 mechanism Effects 0.000 description 1
229910000000 metal hydroxide Inorganic materials 0.000 description 1
150000004692 metal hydroxides Chemical class 0.000 description 1
229910052901 montmorillonite Inorganic materials 0.000 description 1
238000006386 neutralization reaction Methods 0.000 description 1
229910052625 palygorskite Inorganic materials 0.000 description 1
238000001935 peptisation Methods 0.000 description 1
230000035699 permeability Effects 0.000 description 1
238000005498 polishing Methods 0.000 description 1
238000007517 polishing process Methods 0.000 description 1
229920000867 polyelectrolyte Polymers 0.000 description 1
238000006116 polymerization reaction Methods 0.000 description 1
239000011148 porous material Substances 0.000 description 1
229920001592 potato starch Polymers 0.000 description 1
230000001737 promoting effect Effects 0.000 description 1
239000010453 quartz Substances 0.000 description 1
125000001453 quaternary ammonium group Chemical group 0.000 description 1
230000009467 reduction Effects 0.000 description 1
238000007670 refining Methods 0.000 description 1
238000010187 selection method Methods 0.000 description 1
239000010865 sewage Substances 0.000 description 1
VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
229910021647 smectite Inorganic materials 0.000 description 1
239000011780 sodium chloride Substances 0.000 description 1
241000894007 species Species 0.000 description 1
238000013517 stratification Methods 0.000 description 1
238000010557 suspension polymerization reaction Methods 0.000 description 1
238000003809 water extraction Methods 0.000 description 1
229920003169 water-soluble polymer Polymers 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/04—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
- C10G1/047—Hot water or cold water extraction processes
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0027—Floating sedimentation devices
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Engineering & Computer Science (AREA)
Oil, Petroleum & Natural Gas (AREA)
Life Sciences & Earth Sciences (AREA)
Wood Science & Technology (AREA)
General Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Separation Of Suspended Particles By Flocculating Agents (AREA)

CA002392246A 2001-07-02 2002-06-28 Procede de separation de sables bitumineux Abandoned CA2392246A1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US30251501P	2001-07-02	2001-07-02
US60/302515		2001-07-02

Publications (1)

Publication Number	Publication Date
CA2392246A1 true CA2392246A1 (fr)	2003-01-02

Family

ID=23168056

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002392246A Abandoned CA2392246A1 (fr)	2001-07-02	2002-06-28	Procede de separation de sables bitumineux

Country Status (5)

Country	Link
AR (1)	AR034656A1 (fr)
CA (1)	CA2392246A1 (fr)
EA (1)	EA005875B1 (fr)
PE (1)	PE20030211A1 (fr)
WO (1)	WO2003004831A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2005028592A1 (fr) *	2003-09-22	2005-03-31	The Governors Of The University Of Alberta	Auxiliaires de traitement pour recuperation accrue d'hydrocarbures a partir de sables bitumineux, de schistes bitumineux et autres residus du petrole
US9068776B2 (en)	2009-10-30	2015-06-30	Suncor Energy Inc.	Depositing and farming methods for drying oil sand mature fine tailings
US9404686B2 (en)	2009-09-15	2016-08-02	Suncor Energy Inc.	Process for dying oil sand mature fine tailings
US9909070B2 (en)	2009-09-15	2018-03-06	Suncor Energy Inc.	Process for flocculating and dewatering oil sand mature fine tailings

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7244361B2 (en)	2003-11-20	2007-07-17	Ciba Specialty Chemicals Water Treatments Ltd.	Metals/minerals recovery and waste treatment process
AU2009314391B2 (en)	2008-10-29	2012-08-30	The Chemours Company Fc, Llc.	Treatment of tailings streams
US9840794B2 (en)	2008-12-30	2017-12-12	3M Innovative Properties Compnay	Elastic nonwoven fibrous webs and methods of making and using
RU2475514C1 (ru) *	2011-10-17	2013-02-20	Валерий Владимирович Минаков	Способ получения углеводородов из содержащего их песка
WO2014066974A1 (fr) *	2012-11-05	2014-05-08	Suncor Energy Inc.	Techniques de gestion des résidus et opérations de terril de sable pour l'extraction de résidus

Family Cites Families (16)

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Publication number	Priority date	Publication date	Assignee	Title
US3418237A (en)	1963-12-22	1968-12-24	American Cyanamid Co	Settling of non-argillaceous ore pulps and mineral suspensions by use of water-soluble acrylic polymers
US3622087A (en)	1969-10-24	1971-11-23	Dorr Oliver Inc	Beneficiation of phosphate rock
US3707523A (en)	1970-08-19	1972-12-26	American Cyanamid Co	Pollution control in phosphate slime disposal
US4008146A (en)	1975-05-27	1977-02-15	Great Canadian Oil Sands Limited	Method of sludge disposal related to the hot water extraction of tar sands
US4194969A (en)	1977-07-05	1980-03-25	Mobil Oil Corporation	Ore beneficiation process
US4289540A (en) *	1978-01-30	1981-09-15	Suncor Inc.	Hydrolyzed starch-containing compositions
CA1121555A (fr) *	1978-08-02	1982-04-13	Suncor Inc.	Destabilisation des boues au moyen de floculants a base d'amidon hydrolyse
US4342653A (en)	1979-02-15	1982-08-03	American Cyanamid Company	Process for the flocculation of suspended solids
US4224149A (en)	1979-04-30	1980-09-23	American Cyanamid Company	Process useful in the flocculation of phosphate slimes
US4251363A (en)	1979-09-11	1981-02-17	American Cyanamid Company	Anionic polymeric flocculant combinations for settling phosphate slimes
US4265770A (en)	1979-11-09	1981-05-05	Amstar Corporation	Separation of suspended solids from phosphate tailings
US4399039A (en) *	1980-10-30	1983-08-16	Suncor, Inc.	Treatment of tailings pond sludge
US4555346A (en)	1981-09-14	1985-11-26	Union Carbide Corporation	Process for flocculating phophatic slimes
US4690752A (en)	1983-08-19	1987-09-01	Resource Technology Associates	Selective flocculation process for the recovery of phosphate
US5688404A (en)	1995-06-07	1997-11-18	Allied Colloids Limited	Phosphate recovery processes
US6077441A (en)	1998-01-13	2000-06-20	Ciba Specialty Chemicals Water Treatments Limited	Mineral recovery processes

2002
- 2002-06-24 EA EA200400108A patent/EA005875B1/ru not_active IP Right Cessation
- 2002-06-24 WO PCT/EP2002/006959 patent/WO2003004831A1/fr not_active Application Discontinuation
- 2002-06-28 AR ARP020102438A patent/AR034656A1/es unknown
- 2002-06-28 CA CA002392246A patent/CA2392246A1/fr not_active Abandoned
- 2002-07-01 PE PE2002000591A patent/PE20030211A1/es not_active Application Discontinuation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2005028592A1 (fr) *	2003-09-22	2005-03-31	The Governors Of The University Of Alberta	Auxiliaires de traitement pour recuperation accrue d'hydrocarbures a partir de sables bitumineux, de schistes bitumineux et autres residus du petrole
US9404686B2 (en)	2009-09-15	2016-08-02	Suncor Energy Inc.	Process for dying oil sand mature fine tailings
US9909070B2 (en)	2009-09-15	2018-03-06	Suncor Energy Inc.	Process for flocculating and dewatering oil sand mature fine tailings
US10590347B2 (en)	2009-09-15	2020-03-17	Suncor Energy Inc.	Process for flocculating and dewatering oil sand mature fine tailings
US9068776B2 (en)	2009-10-30	2015-06-30	Suncor Energy Inc.	Depositing and farming methods for drying oil sand mature fine tailings

Also Published As

Publication number	Publication date
EA200400108A1 (ru)	2004-08-26
WO2003004831A1 (fr)	2003-01-16
AR034656A1 (es)	2004-03-03
EA005875B1 (ru)	2005-06-30
PE20030211A1 (es)	2003-04-15

Legal Events

Date	Code	Title	Description
2003-11-13	EEER	Examination request
2010-07-28	FZDE	Dead

Publication	Publication Date	Title
US4399039A (en)	1983-08-16	Treatment of tailings pond sludge
CA2123076C (fr)	1998-11-17	Procede d'extraction de sables petroliferes
US5626743A (en)	1997-05-06	Tar sands extraction process
US7691259B2 (en)	2010-04-06	Separation of tar from sand
US4437998A (en)	1984-03-20	Method for treating oil sands extraction plant tailings
CA2606312C (fr)	2011-01-18	Systeme et procede de traitement de produits de queue
US5723042A (en)	1998-03-03	Oil sand extraction process
US6077441A (en)	2000-06-20	Mineral recovery processes
US4414117A (en)	1983-11-08	Decarbonation of tailings sludge to improve settling
CA2350001C (fr)	2007-10-30	Methode de decantation etagee pour eliminer l'eau et les solides presents dans la mousse d'extraction de sables bitumineux
CA2392246A1 (fr)	2003-01-02	Procede de separation de sables bitumineux
US3931006A (en)	1976-01-06	Method of reducing sludge accumulation from tar sands hot water process
CA2168808C (fr)	2000-10-31	Procede d'extraction de sables bitumineux
US10913670B2 (en)	2021-02-09	Oil sands tailings treatment
US3751358A (en)	1973-08-07	Freeze-thaw separation of solids from tar sands extraction effluents
US4456533A (en)	1984-06-26	Recovery of bitumen from bituminous oil-in-water emulsions
US3953318A (en)	1976-04-27	Method of reducing sludge accumulation from tar sands hot water process
US4399038A (en)	1983-08-16	Method for dewatering the sludge layer of an industrial process tailings pond
CA1063957A (fr)	1979-10-09	Methode permettant de reduire la teneur en solides des boues d'un etang
US20020104799A1 (en)	2002-08-08	Tar sands extraction process
CA1140281A (fr)	1983-01-25	Methode pour l'assechement des boues dans les etangs de lagunage d'un procede de traitement des eaux usees industrielles
US4008146A (en)	1977-02-15	Method of sludge disposal related to the hot water extraction of tar sands
CA2768522A1 (fr)	2012-08-18	Procedes de traitement de courants de residus des sables bitumineux
CA1123977A (fr)	1982-05-18	Materiau de construction de digues a teneur de sable et de boues traitees
EP1157727B1 (fr)	2006-12-06	Procédé de récupération de minerai