CN1151894C - Process for extracting potassium feldspar mineral material - Google Patents
Process for extracting potassium feldspar mineral material Download PDFInfo
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- CN1151894C CN1151894C CNB981111661A CN98111166A CN1151894C CN 1151894 C CN1151894 C CN 1151894C CN B981111661 A CNB981111661 A CN B981111661A CN 98111166 A CN98111166 A CN 98111166A CN 1151894 C CN1151894 C CN 1151894C
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Abstract
The present invention discloses a process for extracting potassium feldspar mineral materials. Potassium feldspar minerals (phenocryst) in weathered granites are selected as raw materials; the crystal surface of the minerals are purified through friction and washing; impurities are removed by sieving; after ground, the minerals are separated by a low-intensity magnetic separation method precipitated and dried. The present invention has the advantages of simple manufacturing process, low cost for mineral separation and little equipment investment. The prepared mineral materials contains high content of K2O and low content of TiO2, and the ratio of K2O to Na2O is higher than 3.
Description
The present invention relates to a kind of beneficiation method, the beneficiation method of a kind of nonmetallic ore of more specifically saying so.
The potassic feldspar mineral are except the primary raw material as glass and ceramic industry, also be widely used in production industries such as chemical industry, grinding tool abrasive material, glass fibre, electric welding welding rod, industrial used potassic feldspar mineral are often from pegmatite, the potassic feldspar crystal is thick in this type of mineral deposit, the picking mineral quality meets industrial requirements, and granite is mainly by mineral compositions such as potassium, albite, quartz, biotite, magnetic iron ores.The method of choosing at present the potassic feldspar mineral from weathered granite mainly is flotation, electric separation, high intensity magnetic separation.Flotation can separate quartz with potassic feldspar, but the beneficiation cost height, and beneficiation reagent often produces severe contamination to environment.Electric separation can separate quartz and potassic feldspar preferably, but needs the high voltage preparation equipment.Weak magnetic mineral in the high intensity magnetic separation energy sorting feldspar in powder, as biotite, hornblend etc., but investment is big.Potassium feldspar mineral material is to belong to the not high raw material of Unit Weight price, and the popularization of methods such as flotation, electric separation is very limited.
Anhui lacks the potassic feldspar mineral deposit, the industrial outer throughout the year tens thousand of tons of potassium feldspar mineral materials of buying.Dabie Mountain and Wannan mountainous area weathering are like nearly thousand Km of porphyritic granite outcrop area
2, reserves reach several hundred million m
3Potassic feldspar content accounts for 20～40% in the weathered granite, often be＞phenocryst of 1cm more intactly remains; Matrix minerals such as albite, quartz, mica often are＜sand (soil) of 0.5cm.
The extracting method that the purpose of this invention is to provide a kind of potassium feldspar mineral material is effectively utilized the potassic feldspar mineral resources that are distributed in the weathered granite, and cost is very low.
The objective of the invention is to be achieved through the following technical solutions.
A kind of extracting method of potassium feldspar mineral material is characterized in that sieve is got the potassic feldspar mineral from weathered granite, purifies by crystal face, and impurity elimination makes potassium feldspar mineral material.
May further comprise the steps: 1, crystal face purifies, with the mineral washing, and friction mutually, 2, the removal impurity that sieves, 3, water pulverizes, 4, remove remaining magnet sand, 5, the precipitation drying.
When crystal face purified, water and ore weight ratio were 0.5～2: 1, phase mutual friction 6～10 minutes; When sieving impurity elimination, be that the screen cloth of 0.2mm is removed in the ore pulp＜fine grained of 0.2mm with the aperture; When water pulverizes, the mineral water is pulverized＜0.8mm; Remove magnet sand and adopt low intensity magnetic separation.
After removing magnet sand, with the ore pulp sieve classification.
The extracting method of potassium feldspar mineral material provided by the invention is to find out that in abundant research mineral such as potassic feldspar in the weathered granite are separately on the basis of physical property difference.Select for use sieving technology to replace flotation and electric separation, potassic feldspar is separated with mineral such as quartz, biotite, adopt friction size degradation technology, under the situation of basic maintenance potassic feldspar mineral crystal perfection, remove impurity such as most iron, reach the effect that needs fine grinding one high intensity magnetic separation just can reach usually.
Compare with prior art, the present invention has outstanding advantage.Technology is simple, and technology is easily grasped, and the property grasped is good, and equipment investment is few, and energy consumption is low, and beneficiation cost is low, and is pollution-free, helps the exploitation of potassic feldspar resource in the weathered granite.
With the potassium feldspar mineral material that the inventive method is extracted, quality is better, K2O content height, and K2O: Na2O＞3, Fe2O3, TiO2 content is humble, and quality can compare favourably with person best in quality in the domestic like product fully.Its concrete quality index is as follows:
The Hunan Q/JC57-82 the present invention of project first class feldspar in powder
K2O+Na2O ≥12％ ＞11～13.7％
Fe2O3 ＜0.2％ ≤0.1302～0.3％
TiO2 ～ ＜0.02～0.05％
Al2O3 ≥18％ ≥16～19％
K2O∶Na2O ＞3 ＞3
By the following examples, the present invention is further described.
Embodiment one:
Sieve is got 150 kilograms of potassic feldspar mineral phenocrysts (raw ore) in Shen Qiao township, Yuexi County, the Anhui weathered granite, carries out crystal face and purifies.In water and 1: 1 ratio of ore weight ratio, put in vertical friction log washer, agitating friction 6 minutes, after the sieve impurity elimination, sieve goes in the ore pulp＜impurity of 0.2mm, and the potassic feldspar mineral water on the screen cloth pulverizes particle diameter less than＜0.8mm, and ore pulp is removed magnet sand by low intensity magnetic separation, obtain potassic feldspar powder (finished product) 122 kilograms after the precipitation drying, see attached list
| K2O | Na2O | Fe2O3 | TiO2 | Al2O3 | |
| Raw ore | 9.88 | 3.49 | 0.98 | 0.09 | 18.68 |
| After crystal face purifies | 10.54 | 3.16 | 0.28 | ||
| Finished product | 10.54 | 3.16 | 0.19 | 0.03 | 18.57 |
Embodiment two:
Get 150 kilograms of potassic feldspar mineral phenocrysts in the weathered granite of the flat field of Shucheng County, preparation method is with example one, obtains 113 kilograms of potassic feldspar powders, produces that phasic results see the following form in the process:
| K2O | Na2O | Fe2O3 | TiO2 | Al2O3 | |
| Raw ore | 9.23 | 3.21 | 1.04 | 0.13 | 17.27 |
| After crystal face purifies | 9.87 | 2.89 | 0.27 | ||
| Finished product | 9.87 | 2.89 | 0.22 | 0.05 | 17.14 |
Embodiment three:
Get 400 kilograms of potassic feldspar mineral phenocrysts (raw ore) in the Linyang weathered granite of Qingyang County, place the horizontal friction log washer, solid-to-liquid ratio 1: 1, rubbed 8 minutes, screen out＜impurity of 0.2mm, potassic feldspar on the sieve (chats) pulverizes＜0.8mm, and ore pulp is by the low intensity magnetic separation postprecipitation.Obtain potassic feldspar powder (finished product) 337 kilograms after the nature drying.Produce that phasic results see the following form in the process:
| K2O | Na2O | Fe2O3 | TiO2 | Al2O3 | |
| Raw ore | 8.69 | 2.57 | 0.79 | 0.08 | 16.58 |
| After crystal face purifies | 8.81 | 2.39 | 0.18 | ||
| Finished product | 8.81 | 2.39 | 0.14 | 0.02 | 16.31 |
Claims (3)
1, a kind of extracting method of potassium feldspar mineral material, after it is characterized in that sieve is got the potassic feldspar mineral from weathered granite, carry out following steps: (1), crystal face purify, mineral are washed, friction mutually, (2), the removal impurity that sieves, (3), water pulverize, (4), remove remaining magnet sand, 5, precipitation is dry.
2, the extracting method of a kind of potassium feldspar mineral material according to claim 1, when it is characterized in that crystal face purifies, water and ore weight ratio are 0.5～2: 1, phase mutual friction 6～10 minutes; When sieving impurity elimination, be that the screen cloth of 0.2mm is removed in the ore pulp＜fine grained of 0.2mm with the aperture; When water pulverizes, the mineral water is pulverized＜0.8mm; Remove magnet sand and adopt low intensity magnetic separation.
3, the extracting method of a kind of potassium feldspar mineral material according to claim 1, it is characterized in that removing magnet sand after, with the ore pulp sieve classification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981111661A CN1151894C (en) | 1998-03-03 | 1998-03-03 | Process for extracting potassium feldspar mineral material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB981111661A CN1151894C (en) | 1998-03-03 | 1998-03-03 | Process for extracting potassium feldspar mineral material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1227773A CN1227773A (en) | 1999-09-08 |
| CN1151894C true CN1151894C (en) | 2004-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB981111661A Expired - Fee Related CN1151894C (en) | 1998-03-03 | 1998-03-03 | Process for extracting potassium feldspar mineral material |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728478A (en) * | 2012-07-07 | 2012-10-17 | 蚌埠玻璃工业设计研究院 | Beneficiation method for extracting feldspar and quartz from granite |
| CN109174470B (en) * | 2018-08-31 | 2021-04-20 | 贺州市骏鑫矿产品有限责任公司 | Method for separating potassium feldspar and albite from low-grade potassium-sodium feldspar ore |
| CN109174434B (en) * | 2018-08-31 | 2021-04-16 | 贺州市骏鑫矿产品有限责任公司 | Method for separating quartz from low-grade potassium-sodium feldspar ore |
| CN109019620A (en) * | 2018-08-31 | 2018-12-18 | 贺州市骏鑫矿产品有限责任公司 | A kind of method of low-quality potash feldspar deferrization purification |
| CN109107751B (en) * | 2018-08-31 | 2021-04-20 | 贺州市骏鑫矿产品有限责任公司 | Flotation impurity removal process for low-grade potassium-sodium feldspar ore |
| CN109052423B (en) * | 2018-08-31 | 2020-06-30 | 贺州市骏鑫矿产品有限责任公司 | Method for purifying potassium-sodium feldspar ore |
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1998
- 1998-03-03 CN CNB981111661A patent/CN1151894C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1227773A (en) | 1999-09-08 |
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