CN103172349B - Utilize proppant prepared by the mine tailing of magnesium ore deposit and iron mine and preparation method thereof - Google Patents
Utilize proppant prepared by the mine tailing of magnesium ore deposit and iron mine and preparation method thereof Download PDFInfo
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- CN103172349B CN103172349B CN201310111537.0A CN201310111537A CN103172349B CN 103172349 B CN103172349 B CN 103172349B CN 201310111537 A CN201310111537 A CN 201310111537A CN 103172349 B CN103172349 B CN 103172349B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The present invention relates to a kind of proppant.Described proppant is prepared raw material and is included: magnesium ore deposit mine tailing, iron ore mine and mild-clay.The preparation method of described proppant is: first magnesium ore deposit mine tailing is carried out light-burned process, then through ball mill grinding；Iron ore mine, mild-clay are dried respectively process, more respectively through ball mill grinding；Then weigh raw material mix homogeneously by proportioning and obtain premix material；By premix material pelletize, screening；It is then fed in rotary kiln, burns till, insulation；Burn till haydite to sieve and i.e. obtain described proppant.The proppant of the present invention has the features such as high temperature resistant, high pressure resistant, corrosion-resistant, high intensity, high flow conductivity, low percentage of damage, and its preparation method energy consumption is little, and production capacity is big.
Description
Technical field
The present invention relates to a kind of fracturing propping agents and preparation method thereof, particularly relate to one and utilize industrial tailings to close
High-strength ceramic granule propping agent become and preparation method thereof.
Background technology
Pressure break refers to recover the oil or in gas recovery, utilize hydraulic action, makes oil-gas Layer form the one side in crack
Method.Oil-gas Layer fracturing technology process fracturing unit truck, liquid high-pressure large-displacement with certain viscosity clamp-ons oil
Layer, after oil reservoir is extruded many cracks, adds proppant (such as quartz sand etc.) and is filled in crack, improve oil gas
The penetrating power of layer, to increase water injection rate (water injection well) or oil production (oil well).Fracturing Technology oil,
The exploitation of natural gas plays an important role, and the effect of pressure break depends on that pressure break supports on largely
The technical performance of agent.
Proppant is brought into by fracturing fluid and is supported in the crack of fracturing stratum, thus is effectively imported by oil gas
Oil/gas Well, increases substantially oil and gas production and extends the oil well life-span.Therefore proppant is the key of pressing crack construction
Material.Traditional ceramsite propping agent is with bauxite and hard paste as raw material, by granulating powders, high temperature
Sintering forms, and the combination of manufactured goods is high-strength corundum-mullite phase mutually, such as CN 1085288A, CN
Proppant disclosed in 101787270A.But it is as China's mine resources to develop on a large scale, tradition
The primary raw material bauxite not only rise in price amplitude that method manufactures haydite is big, and bauxite resource is the most day by day
Nervous.Therefore, find cheap effective alternative raw material production high-strength ceramic granule propping agent and be always ability
One of pursuing a goal of territory.
Our country contains abundant magnesite, iron ore resource, but is as many years continuous print exploitation
Save bit by bit a large amount of industrial tailings, not only caused industrial tailings and occupy substantial amounts of farmland and mountain region, and
And become the source of environmental pollution, cause low, the development of resources costly enterprise of mine resources reasonable utilization rate etc.
Phenomenon Deng vicious cycle.How to utilize the industrial tailings that magnesium ore deposit mine tailing, iron ore mine etc. are discarded, be one
The work meant a great.
Summary of the invention
It is an object of the invention to provide a kind of high-strength ceramic granule propping agent, proppant provided by the present invention utilizes
The industrial tailings such as magnesium ore deposit mine tailing, iron ore mine and mild-clay are raw material, by Raw material processing, granulating powders,
High temperature burns till, and the combination of manufactured goods is forsterite cordierite composite ceramics phase mutually, has height high temperature resistant, resistance to
Pressure, corrosion-resistant, high intensity, high flow conductivity, low percentage of damage, thermal shock resistance high.
One of proppant provided by the present invention, its raw material includes: magnesium ore deposit mine tailing 30～60wt%, for example,
33wt%, 38wt%, 42wt%, 45wt%, 50wt%, 56wt% etc., iron ore mine 30～60wt%, example
As for 33wt%, 35wt%, 41wt%, 46wt%, 52wt%, 56wt%, 58wt% etc. and mild-clay
5～20wt%, for example, 7wt%, 8wt%, 11wt%, 15wt%, 17wt%, 19wt% etc., and use
Prepared by following method:
(1) magnesium ore deposit mine tailing is carried out light-burned process, then through ball mill grinding；
(2) iron ore mine, mild-clay are dried respectively process, more respectively through ball mill grinding；
(3) it is made into compound by proportioning raw materials, and mix homogeneously obtains premix material；
(4) described premix material is through disk pelletizing machine pelletize, screened obtains semi-finished product grain；
(5) described semi-finished product grain is sent in rotary kiln, burn till, be incubated and get final product；
Optionally carry out (6) by step (5) products obtained therefrom through bolting.The various different pore size of screening
Sieve is divided into the operation of various granularity level mixed materials different for granule size.Can will prepare through vibrosieve
Proppant product be sieved into 20～40 mesh, 30～50 mesh, 40～60 mesh, 40～70 the different-grain diameter such as mesh
Support agent, the proppant role of different-grain diameter is different, and the performance evaluation of proppant is had critically important by particle diameter
Impact, be correct selection and one of basis using proppant.The percentage by weight sum of described raw material is
100%。
As optimal technical scheme, described proppant, its raw material includes: magnesium ore deposit mine tailing 40～60wt%, ferrum
Ore deposit mine tailing 35～55wt% and mild-clay 8～15wt%.
As optimal technical scheme, described proppant, its raw material includes: magnesium ore deposit mine tailing 40～50wt%, ferrum
Ore deposit mine tailing 40～50wt% and mild-clay 10～12wt%.
As optimal technical scheme, described proppant, described magnesium ore deposit mine tailing is for except superfine magnesite, one-level
The mine tailing not including calcium block outside magnesite, two grades of magnesites or three grades of magnesites or at least 2 persons, for example, except spy
The mine tailing of calcium block is not included outside level magnesite or two grades of magnesites or three grades of magnesites, or for except superfine magnesite and two grades
The mine tailing of calcium block is not included outside magnesite, or for not wrapping in addition to superfine magnesite, one-level magnesite and two grades of magnesites
Include the mine tailing of calcium block, or for not including in addition to superfine magnesite, one-level magnesite, two grades of magnesites and three grades of magnesites
The mine tailing of calcium block, preferably In Dashiqiao Area, Yingkou magnesite are except superfine magnesite, one-level magnesite, two grades of magnesites
Or the mine tailing not including calcium block outside three grades of magnesites or at least 2 persons.
As optimal technical scheme, described proppant, described iron ore mine is the tail after removing iron ore concentrate
Ore deposit, the preferably iron mine mine tailing after magnetic separation, flotation remove iron ore concentrate.
Due to iron mine, the exhaustive exploitation of magnesium ore resources, resource recoverable amount wretched insufficiency, mine tailing serious waste.
The most provided by the present invention more effectively, sufficiently utilize iron mine, the mine tailing in magnesium ore deposit, administered mine tailing, carried
High resource utilization.
As optimal technical scheme, described proppant, described mild-clay is ball clay, preferably three
The ball clay that level is above, the more preferably ball clay of more than three grades of Jilin Cortex Fraxini mandshuricae.
The industrial tailings that the present invention utilizes magnesium ore deposit mine tailing, iron ore mine etc. discarded is prepared proppant, can
Substitute day by day expensive bauxite resource, can seek for discarded industrial tailings particularly In Dashiqiao Area, Yingkou again
Finding suitable purposes, improve the industrial chain of magnesium ore deposit, iron mine, more valuable is to find one actual
Administer industrial tailings method.
An object of the present invention also resides in the preparation method providing a kind of proppant of the present invention, including such as
Lower step:
(1) magnesium ore deposit mine tailing is carried out light-burned process, then through ball mill grinding；
(2) iron ore mine, mild-clay are dried respectively process, more respectively through ball mill grinding；
(3) proportioning as described in any one of claim 1～6 of the raw material after step (1), (2) process is made into mixing
Expect, and mix homogeneously obtains premix material；
(4) by the premix material of the mix homogeneously of step (3) gained through disk pelletizing machine pelletize, screened half one-tenth is obtained
Product grain；
(5) the semi-finished product grain of step (4) gained is sent in rotary kiln, burn till, be incubated and get final product；
Optionally carry out (6) and the high temperature of step (5) gained is burnt till haydite through bolting.
Wherein, the calcining heat of the light-burned process described in step (1) is more than 1000 DEG C, for example, 1020
DEG C, 1070 DEG C, 1110 DEG C, 1150 DEG C, 1170 DEG C, 1190 DEG C, 1200 DEG C, 1230 DEG C etc., preferably 1100～1250
℃.Light-burned is roasting refractory raw material at a lower temperature so that it is completes a part of physical-chemical reaction and makes former
A kind of process of material activation.An optimal light roasting temperature is had for fixed material.Light roasting temperature mistake
Height can make crystallization degree increase, and granularity becomes big, specific surface area and activity decrease, and light roasting temperature is too low then may
Undecomposed female salt of residual is had to hinder sintering.
Preferably, described properties of powder performace is more than 500 mesh, preferably 600～700 mesh.
Wherein, the baking temperature of the dried described in step (2) is more than 100 DEG C, for example, 110 DEG C,
140 DEG C, 170 DEG C, 190 DEG C, 220 DEG C, 250 DEG C, 300 DEG C etc., preferably more than 150 DEG C.Such as iron mine
When water content exceedes certain proportion in mine tailing, mild-clay, if not being dried, being just difficult to pulverize, can drop
The production capacity of low grinding machine, and easily crack in sintering process；And dried semi-finished product,
Kiln burns till and is just easier to control, be not likely to produce waste product.
Preferably, described properties of powder performace is more than 500 mesh, preferably 600～700 mesh.
Preferably, the granularity of the semi-finished product grain described in step (4) is 12～50 mesh.The granule of semi-finished product grain is too
Carefully need to return disk pelletizing machine again to pelletize, if the granule of semi-finished product grain is too thick, then break into waste product.
Wherein, the firing temperature described in step (5) is more than 1000 DEG C, for example, 1030 DEG C, 1060 DEG C,
1150 DEG C, 1190 DEG C, 1230 DEG C, 1250 DEG C, 1260 DEG C, 1270 DEG C etc., preferably 1210～1280 DEG C；
Preferably, described temperature retention time is more than 1h, for example, 1.2h, 1.4h, 1.6h, 2.0h, 2.4h,
2.8h, 3.2h etc., preferably 1.5～2.5h.
The present invention utilizes the industrial tailings that magnesium ore deposit mine tailing, iron ore mine etc. are discarded, introduces the binding ability of some
Strong mild-clay, by the processing technology routine of the present invention, can synthesize that intensity is high, thermal shock resistance is steady
The ceramsite propping agent that fixed forsterite cordierite composite ceramics combines.
The present invention has a following actively beneficial effect:
Ceramic product smooth surface the most of the present invention, densification, have that compressive resistance is high, apparent density is low, chemical surely
The excellent properties that qualitative and acid resistance is good, the one-tenth of product is grouped into and is shown in Table 1, and relevant performance indications refer to table 2.
Ceramic product primary raw material the most of the present invention is magnesium ore deposit mine tailing, iron ore mine, and exquisiteness of drawing materials is with low cost,
Wide material sources.The rareest is to have administered mine tailing, has transformed environment, helps Ore enterprise to reduce mine tailing
The expense of discharge, extends the life-span in mine, improves the utilization ratio of resource.
3. the present invention changes the raw materials for production of current haydite and uses high bauxite resource, changes corundum not
Carry out stone and combine phase, use the waste resources such as magnesium ore deposit mine tailing, iron ore mine, use mild-clay to make it synthesize magnesium
Olivine cordierite composite ceramics phase.This crystalline phase have high temperature resistant, high pressure resistant, heat-resistant knocking stability is excellent
Feature, therefore the product of the present invention has excellent serviceability.
4. and the preparation technology energy consumption of the present invention is little, production capacity is big.
Detailed description of the invention
Technical scheme is further illustrated below by detailed description of the invention.
Embodiment one
A kind of proppant, prepares raw material and is configured to: magnesium ore deposit mine tailing 30wt%, iron ore mine 60wt% and soft
Clay 20wt%.
The preparation method of above-mentioned high-strength ceramic granule propping agent, comprises the steps:
(1) magnesium ore deposit mine tailing is carried out light-burned process through the calcining heat of 1100 DEG C, then through ball mill grinding extremely
600～700 mesh；
(2) by iron ore mine, mild-clay, baking temperature through 150 DEG C is dried process respectively, then distinguishes
Through ball mill grinding to 600～700 mesh；
(3) take magnesium ore deposit mine tailing by proportioning raw materials, iron ore mine, mild-clay are made into compound, and mix homogeneously；
(4) by the mix homogeneously premix material of upper step gained through disk pelletizing machine pelletize, screened 12～50 mesh are obtained
Semi-finished product grain；
(5) semi-finished product grain is sent in rotary kiln, firing temperature 1280 DEG C, temperature retention time 2 hours and get final product.
Embodiment two
A kind of proppant, prepares raw material and is configured to: magnesium ore deposit mine tailing 65wt%, iron ore mine 30wt% and soft
Clay 5wt%.
The preparation method of above-mentioned high-strength ceramic granule propping agent, comprises the steps:
(1) magnesium ore deposit mine tailing is carried out light-burned process through the calcining heat of 1250 DEG C, then through ball mill grinding extremely
600～700 mesh；
(2) by iron ore mine, mild-clay, baking temperature through 180 DEG C is dried process respectively, then distinguishes
Through ball mill grinding to 600～700 mesh；
(3) take magnesium ore deposit mine tailing by proportioning raw materials, iron ore mine, mild-clay are made into compound, and mix homogeneously；
(4) by the mix homogeneously premix material of upper step gained through disk pelletizing machine pelletize, screened 12～50 mesh are obtained
Semi-finished product grain；
(5) semi-finished product grain is sent in rotary kiln, firing temperature 1210 DEG C, temperature retention time 1.5 hours；
(6) high temperature of upper step gained is burnt till haydite through bolting, obtain the proppant of different size.
Embodiment three
A kind of proppant, prepares raw material and is configured to: magnesium ore deposit mine tailing 40wt%, iron ore mine 40wt% and soft
Clay 10wt%.
The preparation method of above-mentioned high-strength ceramic granule propping agent, comprises the steps:
(1) magnesium ore deposit mine tailing is carried out light-burned process through the calcining heat of 1160 DEG C, then through ball mill grinding extremely
600～700 mesh；
(2) by iron ore mine, mild-clay, baking temperature through 220 DEG C is dried process respectively, then distinguishes
Through ball mill grinding to 600～700 mesh；
(3) take magnesium ore deposit mine tailing by described proportioning raw materials, iron ore mine, mild-clay are made into compound, and mix
Close uniformly；
(4) by the mix homogeneously premix material of upper step gained through disk pelletizing machine pelletize, screened 12～50 mesh are obtained
Semi-finished product grain；
(5) semi-finished product grain is sent in rotary kiln, firing temperature 1230 DEG C, temperature retention time 1 hour；
(6) high temperature of upper step gained is burnt till haydite product after bolting, screening through after the assay was approved
Packaging warehouse-in.
Embodiment four
A kind of proppant, prepares raw material and is configured to: magnesium ore deposit mine tailing 50wt%, iron ore mine 50wt% and soft
Clay 12wt%.
The preparation method of above-mentioned high-strength ceramic granule propping agent, comprises the steps:
(1) magnesium ore deposit mine tailing is carried out light-burned process through the calcining heat of 1220 DEG C, then through ball mill grinding extremely
600～700 mesh；
(2) iron ore mine, mild-clay are dried process through the baking temperature of 240 DEG C, more respectively through ball
Grinding machine grinding is to 600～700 mesh；
(3) take magnesium ore deposit mine tailing by proportioning raw materials, iron ore mine, mild-clay are made into compound, and mix homogeneously；
(4) by the mix homogeneously premix material of upper step gained through disk pelletizing machine pelletize, screened 12～50 mesh are obtained
Semi-finished product grain；
(5) semi-finished product grain is sent in rotary kiln, firing temperature 1240 DEG C, temperature retention time 2 hours and get final product.
Embodiment five
A kind of proppant, prepares raw material and is configured to: magnesium ore deposit mine tailing 60wt%, iron ore mine 55wt% and soft
Clay 15wt%.
The preparation method of above-mentioned high-strength ceramic granule propping agent, comprises the steps:
(1) by magnesium ore deposit mine tailing, calcining heat through 1080 DEG C carries out light-burned process respectively, more respectively through ball mill powder
It is milled to 600～700 mesh；
(2) by iron ore mine, mild-clay, baking temperature through 100 DEG C is dried process respectively, then distinguishes
Through ball mill grinding to 600～700 mesh；
(3) take magnesium ore deposit mine tailing by described proportioning raw materials, iron ore mine, mild-clay are made into compound, and mix
Close uniformly；
(4) by the mix homogeneously premix material of upper step gained through disk pelletizing machine pelletize, screened 12～50 mesh are obtained
Semi-finished product grain；
(5) semi-finished product grain is sent in rotary kiln, firing temperature 1040 DEG C, temperature retention time 2.1 hours；
(6) high temperature of upper step gained is burnt till the haydite product obtaining different size after bolting, screening
Product, pack warehouse-in through after the assay was approved.
Haydite made by embodiment one to embodiment five is carried out component content test, the results are shown in Table 1, and
Performance test, the results are shown in Table 2.
Table 1
| Composition | wt% |
| SiO2 | 50～65 |
| Al2O3 | 5～16 |
| MgO | 22～32 |
| Fe2O3 | 1～5.5 |
| Other | 0～2.5% |
Table 2
| Project | Index |
| Specification (mm) | 0.45～0.92 |
| Percentage of damage (52Mpa) | ≤5% |
| Bulk density (g/cm3) | ≤1.52 |
| Apparent density (g/cm3) | ≤2.78 |
| Circularity | ≥0.9 |
| Sphericity | ≥0.9 |
| Acid solubility (%) | ≤4 |
Applicant states, the present invention illustrates detailed process equipment and the technique of the present invention by above-described embodiment
Flow process, but the invention is not limited in above-mentioned detailed process equipment and technological process, i.e. do not mean that the present invention
Have to rely on above-mentioned detailed process equipment and technological process could be implemented.Person of ordinary skill in the field should
This understands, any improvement in the present invention, and the equivalence of raw material each to product of the present invention is replaced and auxiliary element
Interpolation, concrete way choice etc., within the scope of all falling within protection scope of the present invention and disclosure.
Claims (20)
1. a proppant, it is characterised in that its raw material includes: magnesium ore deposit mine tailing 30～65wt%, iron mine tail
Ore deposit 30～60wt% and mild-clay 5～20wt%, and use following method to prepare:
(1) magnesium ore deposit mine tailing is carried out light-burned process, then through ball mill grinding；
(2) iron ore mine, mild-clay are dried respectively process, more respectively through ball mill grinding；
(3) it is made into compound by proportioning raw materials, and mix homogeneously obtains premix material；
(4) described premix material is through disk pelletizing machine pelletize, screened obtains semi-finished product grain；
(5) described semi-finished product grain is sent in rotary kiln, burn till, be incubated and get final product；
Optionally carry out (6) by step (5) products obtained therefrom through bolting；
The calcining heat of the light-burned process described in step (1) is 1100～1250 DEG C；Described properties of powder performace is
More than 500 mesh；
Properties of powder performace described in step (2) is more than 500 mesh；
Firing temperature described in step (5) is 1210～1280 DEG C.
Proppant the most according to claim 1, it is characterised in that its raw material includes: magnesium ore deposit mine tailing
40～60wt%, iron ore mine 35～55wt% and mild-clay 5～15wt%.
Proppant the most according to claim 1, it is characterised in that its raw material includes: magnesium ore deposit mine tailing
40～50wt%, iron ore mine 40～50wt% and mild-clay 10～12wt%.
4. according to the proppant described in any one of claims 1 to 3, it is characterised in that described magnesium ore deposit mine tailing
For the magnesium ore deposit mine tailing not including calcium block in addition to superfine magnesite.
5. according to the proppant described in any one of claims 1 to 3, it is characterised in that described magnesium ore deposit mine tailing
In addition to superfine magnesite and two grades of magnesites, the mine tailing of calcium block is not included for magnesium ore deposit.
6. according to the proppant described in any one of claims 1 to 3, it is characterised in that described magnesium ore deposit mine tailing
In addition to superfine magnesite, one-level magnesite and two grades of magnesites, the mine tailing of calcium block is not included for magnesium ore deposit.
7. according to the proppant described in any one of claims 1 to 3, it is characterised in that described magnesium ore deposit mine tailing
In addition to superfine magnesite, one-level magnesite, two grades of magnesites and three grades of magnesites, the mine tailing of calcium block is not included for magnesium ore deposit.
8. according to the proppant described in any one of claims 1 to 3, it is characterised in that described iron ore mine
The mine tailing after iron ore concentrate is removed for iron mine.
Proppant the most according to claim 8, it is characterised in that described iron ore mine is iron mine warp
Magnetic separation, flotation remove the mine tailing after iron ore concentrate.
10. according to the proppant described in any one of claims 1 to 3, it is characterised in that described is soft viscous
Soil is ball clay.
11. proppants according to claim 10, it is characterised in that described mild-clay is three grades
Above ball clay.
12. proppants according to claim 11, it is characterised in that described mild-clay is Jilin
The ball clay that Cortex Fraxini mandshuricae is more than three grades.
Described in 13. any one of claim 1～12, the preparation method of proppant, comprises the steps:
(1) magnesium ore deposit mine tailing is carried out light-burned process, then through ball mill grinding；
(2) iron ore mine, mild-clay are dried respectively process, more respectively through ball mill grinding；
(3) proportioning as described in any one of claim 1～12 of the raw material after step (1), (2) process is made into mixed
Close material, and mix homogeneously obtains premix material；
(4) by the premix material of the mix homogeneously of step (3) gained through disk pelletizing machine pelletize, screened half one-tenth is obtained
Product grain；
(5) the semi-finished product grain of step (4) gained is sent in rotary kiln, burn till, be incubated and get final product；
Optionally carry out (6) and the high temperature of step (5) gained is burnt till haydite through bolting；
The calcining heat of the light-burned process described in step (1) is 1100～1250 DEG C；Described properties of powder performace is
More than 500 mesh；
Properties of powder performace described in step (2) is more than 500 mesh；
Firing temperature described in step (5) is 1210～1280 DEG C.
14. preparation methoies according to claim 13, it is characterised in that the grinding described in step (1)
Granularity is 600～700 mesh.
15. preparation methoies according to claim 13, it is characterised in that being dried described in step (2)
The baking temperature processed is more than 100 DEG C.
16. preparation methoies according to claim 15, it is characterised in that doing of described dried
Dry temperature is more than 150 DEG C.
17. preparation methoies according to claim 13, it is characterised in that the grinding described in step (2)
Granularity is 600～700 mesh.
18. preparation methoies according to claim 13, it is characterised in that half described in step (4) becomes
The granularity of product grain is 12～50 mesh.
19. according to the preparation method described in any one of claim 13～18, it is characterised in that in step (5)
Described temperature retention time is more than 1h.
20. preparation methoies according to claim 19, it is characterised in that described temperature retention time is
1.5～2.5h.
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| CN201310111537.0A CN103172349B (en) | 2013-03-29 | 2013-03-29 | Utilize proppant prepared by the mine tailing of magnesium ore deposit and iron mine and preparation method thereof |
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| CN102015573A (en) * | 2008-04-28 | 2011-04-13 | 普拉德研究及开发股份有限公司 | Strong low density ceramics |
| CN102516977A (en) * | 2011-12-16 | 2012-06-27 | 三门峡方圆实业股份有限公司 | Low-density ceramic proppant and preparation method thereof |
| CN102786921A (en) * | 2012-08-03 | 2012-11-21 | 贵州林海陶粒制造有限公司 | Low-density oil fracturing propping agent and preparation method thereof |
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