WO2022226926A1 - Procédé d'utilisation complète d'une matière brute de résidus de sable bitumineux - Google Patents

Procédé d'utilisation complète d'une matière brute de résidus de sable bitumineux Download PDF

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Publication number
WO2022226926A1
WO2022226926A1 PCT/CN2021/091144 CN2021091144W WO2022226926A1 WO 2022226926 A1 WO2022226926 A1 WO 2022226926A1 CN 2021091144 W CN2021091144 W CN 2021091144W WO 2022226926 A1 WO2022226926 A1 WO 2022226926A1
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WIPO (PCT)
Prior art keywords
oil sand
sand tailings
raw material
tailings
mill
Prior art date
Application number
PCT/CN2021/091144
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English (en)
Chinese (zh)
Inventor
任冬寅
尚志新
马洪才
曲铭海
王晨宁
郭昊
Original Assignee
德州学院
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.)
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Application filed by 德州学院 filed Critical 德州学院
Priority to PCT/CN2021/091144 priority Critical patent/WO2022226926A1/fr
Priority to CN202180011091.7A priority patent/CN115023301A/zh
Publication of WO2022226926A1 publication Critical patent/WO2022226926A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/30—Combinations with other devices, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
    • B09B3/35—Shredding, crushing or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K21/00—Fireproofing materials
    • C09K21/06—Organic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B2101/00—Type of solid waste
    • B09B2101/55—Slag

Definitions

  • the invention belongs to the field of green resource utilization of industrial solid waste, and in particular relates to a method for comprehensively utilizing oil sand tailings raw materials.
  • oil sands as an unconventional energy source, has become an important supplementary energy source due to its wide distribution, large reserves, high oil content, and convenient exploitation.
  • oil sands extraction and separation technology With the improvement of oil sands extraction and separation technology, the production cost of oil sands oil has been continuously reduced, and the output has also been greatly increased. Canada alone produced 2.7 million bpd in 2020 and is expected to reach 4 million bpd by 2030.
  • Oil sand tailings are the solid particulate matter remaining after oil sand separation, and 3-15 tons of oil sand tailings are produced for every 1 ton of oil sands oil produced.
  • oil sands oil production enterprises urgently need key technologies for comprehensive utilization of oil sand tailings.
  • oil sand tailings The color of oil sand tailings is black or gray-black, and its main components vary according to different origins.
  • the main components of Indonesian oil sand tailings are CaCO 3 , while those in Canada and China Inner Mongolia are mainly composed of quartz sand and clay minerals.
  • oil sand tailings can also be used to prepare hemihydrate gypsum, mercury removal adsorbents, exterior wall putty, water glass, non-burning bricks, etc.
  • the present invention provides a method for comprehensive utilization of oil sand tailings raw materials, which can realize the green high-efficiency treatment of various oil sand tailings according to the mineral properties of the oil sand tailings.
  • This method has good universality and can be comprehensively utilized for a variety of oil sand tailings.
  • oil sand tailings themselves are natural minerals, and after high temperature, alkali treatment or organic solution extraction and other processes during the oil extraction process, they have the characteristics of looseness and porosity, easy crushing, and stable physicochemical properties. In addition, some organic components will remain on the surface of oil sand tailings, which makes it more compatible with polymer materials. Therefore, it is considered that oil sand tailings have the potential to replace calcium powder, kaolin, talc and other natural minerals for the production of fillers for composite materials.
  • a method for comprehensive utilization of oil sand tailings raw materials comprising at least some of the five steps of raw ore pretreatment, magnetic separation, fine pulverization, ultrafine pulverization and surface modification :
  • the pretreatment includes two-stage processes of drying and coarse crushing.
  • the drying step is to dry the oil sand tailings with a moisture content of more than 0.5% by drying equipment.
  • the coarse crushing is to crush the oil sand tailings with a particle size larger than 0.5 mm by a coarse crushing device.
  • the pretreatment can reasonably combine drying and coarse crushing processes according to the actual water content and particle size of the oil sand tailings.
  • Magnetic separation use a magnetic separator to perform magnetic separation on the pretreated materials.
  • the magnetically separated materials are finely pulverized in the next step, and the magnetically separated iron-rich tailings can be used as raw materials for cement production.
  • the magnetic separation step can be omitted.
  • Fine pulverization Use fine pulverizing equipment to pulverize the magnetically separated materials to a certain fineness, and the finely pulverized materials can be used as inorganic fillers for the rubber and plastic industries.
  • Ultrafine pulverization equipment is used to ultrafinely pulverize the finely pulverized materials to a certain fineness.
  • the ultrafinely pulverized materials can be used as ultrafine fillers in the field of rubber and plastics, and can also be used for surface treatment as required. modified.
  • the method of the present invention has at least one of the following advantages: the production processes involved in the method of the present invention are all pure physical processes, do not involve reactions such as strong acid and alkali, high temperature and high pressure, and the production process is safe , green, environmental protection, no three waste emissions, high adaptability to different types of oil sand tailings.
  • the rubber and plastic filler produced by this method has good dispersion effect, good affinity with resin, and excellent reinforcement performance, and different types of products can replace heavy calcium, light calcium, nano-calcium carbonate, kaolin, china clay commonly used in the rubber and plastic industry. , talc and other inorganic fillers.
  • the method of the invention truly realizes the green and high value-added utilization of oil sand tailings raw materials while saving natural mineral resources.
  • FIG. 1 is a flow chart of a method for comprehensively utilizing oil sand tailings raw materials according to an embodiment of the present invention.
  • a method for comprehensively utilizing oil sand tailings raw materials is provided according to an embodiment of the present invention, and the method includes the following steps:
  • Surface modification is performed on at least a portion of the ultrafinely pulverized oil sand tailings feedstock.
  • the pretreatment includes drying the oil sand tailings raw material by drying equipment so that the water content of the oil sand tailings raw material is lower than 0.5%;
  • the particle size of sand tailings is less than 0.5 mm.
  • the drying equipment includes centrifugal dehydrators, filter presses, flash dryers, spray dryers, fluidized bed dryers, rotary kiln dryers, drum dryers, and tunnel kiln dryers any one or any combination of them.
  • the primary crushing equipment includes any one of a hammer crusher, a cone crusher, an impact crusher and a roller press or any combination thereof.
  • the method before the step of finely pulverizing the pretreated oil sand tailings raw material, the method includes using a magnetic separator to perform magnetic separation on the pretreated oil sand tailings raw material, and magnetically select the iron-rich oil sand tailings raw material Used as raw material for cement.
  • the magnetic separator includes a dry magnetic separator, and the magnetic field strength of the dry magnetic separator is in the range of 0.02-2.0T, such as 1T or 1.5T.
  • the step of finely pulverizing the pretreated oil sand tailings is performed by a finely crushing device including any one of a Raymond mill, a vertical mill, a ring roller mill, a mechanical mill and a ball mill or any combination thereof; the fineness of the finely pulverized oil sand tailings is between 325-1250 mesh, such as 500 mesh, 800 mesh or 1000 mesh.
  • the step of performing ultra-fine pulverization on at least a part of the finely pulverized oil sand tailings raw material is performed by an ultra-fine pulverizing device, wherein the ultra-fine pulverizing device includes a jet mill, a steam mill, a hot air jet mill, Any one of stirring mill and sand mill or any combination thereof; the fineness of the ultra-finely pulverized oil sand tailings is between 1250-12500 mesh, such as 5000 mesh, 8000 mesh or 10000 mesh.
  • the modifier is sprayed into the cavity of the ultra-fine pulverizing equipment to modify the surface of the ultra-finely pulverized oil sand tailings; or the ultra-fine pulverized oil is sprayed in the cavity of the modification equipment Sand tailings for surface modification.
  • the surface modification can be selected according to the type of modifier and the type of ultra-fine pulverizing equipment to be completed by spraying the modifier into the pulverizing cavity during the ultra-fine pulverizing process, or it can be completed in the modification equipment after the ultra-fine pulverizing step. completed within.
  • the modification equipment includes any one of a three-roll modifier, a high-speed mixer and a tower modifier or any combination thereof;
  • the modifier is a silane coupling agent, an aluminate Any of coupling agents, titanate coupling agents, rare earth coupling agents, fatty acids and their salts, polyalcohols, higher alcohols, ammonium polyacrylate, sodium polyacrylate, sodium hexametaphosphate and sodium tripolyphosphate. one or any combination of them.
  • the dosage of the modifier is 0.01-25% of the powder mass of the oil sand tailings, such as 5%, 10% or 15%; the temperature for surface modification is 50-300°C, such as 100°C , 200°C or 250°C.
  • the particle size of Indonesian oil sand tailings raw material is less than 5mm, and its main chemical composition is shown in Table 1.
  • the adopted processing techniques are drying, magnetic separation, fine pulverization, ultra-fine pulverization and surface modification.
  • the specific preparation process parameters are as follows: First, use a drum dryer to dry the Indonesian oil sand tailings raw material with hot air. The air inlet temperature of the dryer is 190°C and the outlet temperature is 80°C. The dried oil sand tailings raw material contains The amount of water is 0.3%. Then, the dried oil sand tailings were magnetically separated by a dry magnetic separator under a magnetic field strength of 1.5T. The chemical composition of the material after magnetic separation is shown in Table 1.
  • the material after the magnetic separation is ground with a 30-type mechanical mill, and the main engine speed is 3000rpm, and the classifier speed is 1350rpm.
  • A1 was pulverized under the pressure of 0.8Mpa with a fluidized bed jet mill and the rotating speed of the classifier was 1700rpm to obtain the ultra-fine filler A2.
  • a high-speed mixer was used to make 0.4% stearin Acid and 0.5% silane coupling agent (A192) were used as modifiers, and were continuously stirred at 100°C for 15 minutes (min) to obtain modified ultrafine filler A3 (or modified filler A3 for short), and its particle size distribution was as follows shown in Table 2.
  • the particle size of Canadian oil sand tailings raw material is less than 5mm, and its main chemical composition is shown in Table 3.
  • the processing techniques adopted in this embodiment are drying, magnetic separation, fine pulverization, ultra-fine pulverization and surface modification.
  • the specific preparation process parameters are as follows: First, use a fluidized bed dryer to dry the Canadian oil sand tailings raw material with hot air. The air inlet temperature of the dryer is 183°C, and the outlet temperature is 75°C. The water content is 0.3%. Then, the dried oil sand tailings were magnetically separated by a dry magnetic separator at a magnetic field strength of 1.5T. The chemical composition of the material after magnetic separation is shown in Table 3.
  • the magnetically-separated material was milled with a ring roller and finely pulverized at 2700 rpm of the main engine and 1500 rpm of the classifier to obtain 800-mesh filler B1 (the particle size distribution is shown in Table 4). Then, the filler B1 was ultrafinely pulverized with a steam kinetic energy mill under the conditions of a steam pressure of 1.2Mpa and an inner temperature of 180°C, and the classifier rotating speed was 2700rpm to obtain the ultrafine filler B2 (the particle size distribution is shown in the table below). 4 shown).
  • Example 2 Using the fillers A1 and B1 prepared in Example 1 and Example 2, a filling experiment was carried out in styrene-butadiene rubber, and mixed with commercially available 800-mesh light calcium carbonate (1,000 yuan/ton) and 800-mesh calcium carbonate (500 Yuan/ton) for performance comparison.
  • the rubber formula is: styrene-butadiene rubber (100 parts), stearic acid (1 part), sulfur (1.75 parts), zinc oxide (3 parts), accelerator NS (1 part), filler A1, filler B1, light Calcium or heavy calcium (40 servings).
  • the ultrafine filler A2 and modified ultrafine filler A3 prepared in Example 1 a filling experiment was carried out in polyvinyl chloride (PVC), and the performance was carried out with the commercially available 1250 mesh active light calcium carbonate (1200 yuan/ton). Compared.
  • the PVC formula is: PVC (100 parts), calcium stearate (1 part), compound lead (8 parts), stearic acid (2 parts), solid paraffin (2 parts), CPE (4 parts), CPR (1.5 parts) parts), superfine filler A2, modified superfine filler A3 or active light calcium (40 parts).
  • the high-speed mixer is statically heated to 150 °C, pour the prepared PVC and additives into the high-speed mixer, mix and stir for 15 minutes, remove the moisture in the material, add filler and mix and discharge, and then extrude the dried mixture with After being extruded by machine (extrusion temperature 155-170 °C), it is cooled in water, then put into a pulverizer for pulverization, and finally the particles are dried in an oven at 70 °C for 8 hours, and then injected into an injection molding machine at 200 °C. Standard splines for performance testing. The specific performance indicators are shown in Table 6:
  • the EPDM rubber was used to carry out the filling experiment, and the performance was compared with the commercially available nano calcium carbonate (3000 yuan/ton).
  • the rubber formula is: EPDM rubber (100 parts), stearic acid (1.5 parts), sulfur (2.75 parts), zinc oxide (3 parts), accelerator CZ (2 parts), accelerator TMTD (1 part) , superfine filler B2, modified filler B3 or nano calcium carbonate (60 parts), antioxidant RD (2 parts), aromatic oil (8 parts).
  • oil sand tailings treated by the method of the present invention can completely replace heavy calcium carbonate, light calcium carbonate and nano-calcium carbonate of the same fineness in the field of rubber and plastic fillers, and The effect is better after sex, and the method of the invention has universal applicability to oil sand tailings of different origins.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

Des modes de réalisation de la présente invention concernent un procédé d'utilisation complète d'une matière brute de résidus de sable bitumineux. Le procédé comprend les étapes suivantes consistant à : prétraiter une matière brute de résidus de sable bitumineux, de telle sorte que la matière brute de résidus de sable bitumineux présente une teneur en eau prédéterminée et une taille de particule ; finement broyer la matière brute de résidus de sable bitumineux prétraitée ; réaliser un broyage ultrafin sur au moins une partie de la matière brute de résidus de sable bitumineux finement broyée ; et réaliser une modification de surface sur au moins une partie de la matière brute de résidus de sable bitumineux soumise à un broyage ultrafin.
PCT/CN2021/091144 2021-04-29 2021-04-29 Procédé d'utilisation complète d'une matière brute de résidus de sable bitumineux WO2022226926A1 (fr)

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PCT/CN2021/091144 WO2022226926A1 (fr) 2021-04-29 2021-04-29 Procédé d'utilisation complète d'une matière brute de résidus de sable bitumineux
CN202180011091.7A CN115023301A (zh) 2021-04-29 2021-04-29 综合利用油砂尾砂原料的方法

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1670086A (zh) * 2004-12-17 2005-09-21 毕舒 利用陶瓷抛光尾泥或陶瓷废料制备橡塑用填料的方法
US20070272596A1 (en) * 2006-05-25 2007-11-29 Titanium Corporation Inc. Process for recovering heavy minerals from oil sand tailings
US20090020735A1 (en) * 2007-07-16 2009-01-22 Conocophillips Company Flame retardant composition employing oil sand tailings

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
CN112300602A (zh) * 2020-10-29 2021-02-02 北京化工大学 一种无机填料的改性方法

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
CN1670086A (zh) * 2004-12-17 2005-09-21 毕舒 利用陶瓷抛光尾泥或陶瓷废料制备橡塑用填料的方法
US20070272596A1 (en) * 2006-05-25 2007-11-29 Titanium Corporation Inc. Process for recovering heavy minerals from oil sand tailings
US20090020735A1 (en) * 2007-07-16 2009-01-22 Conocophillips Company Flame retardant composition employing oil sand tailings

Non-Patent Citations (2)

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Title
"Thesis Liaoning Shihua University ", 15 June 2020, LIAONING SHIHUA UNIVERSITY , CN, article CHEN LUCHAN: "Surface Modification of Inorganic Rigid Particles and Its Application in Polyethylene)", pages: 1 - 61, XP055981427 *
HE HAO, WANG AIJUN;FAN SHANYING; CAO JUN; ZHANG ZHIQING; WANG JIPING: "Research on the Application of Oilfield Sludge Filler in Rubber", CHINA RUBBER SCIENCE AND TECHNOLOGY MARKET., vol. 7, no. 2, 15 January 2009 (2009-01-15), pages 25 - 27, XP055981468, ISSN: 2095-5448 *

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