CN87100932A - Wet-type mineral concentration method for swelled soil - Google Patents
Wet-type mineral concentration method for swelled soil Download PDFInfo
- Publication number
- CN87100932A CN87100932A CN 87100932 CN87100932A CN87100932A CN 87100932 A CN87100932 A CN 87100932A CN 87100932 CN87100932 CN 87100932 CN 87100932 A CN87100932 A CN 87100932A CN 87100932 A CN87100932 A CN 87100932A
- Authority
- CN
- China
- Prior art keywords
- wet
- ore
- type mineral
- flocculation
- concentration method
- 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.)
- Withdrawn
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Paper (AREA)
Abstract
A kind of wet-type mineral concentration method for swelled soil, by broken, smash the industrial production line that operations such as slurry (or ore grinding), hydrocyclone sorting, flocculation and floccule body dehydration are formed, flow process is simple, production capacity is bigger, filter cake forming, filtrate solid content are low, and dressing expenses is lower.
Description
The present invention relates to a kind of beneficiation method of nonmetal clay class mineral.
The bentonite ore dressing has dry method and two kinds of methods of wet method.The dry method ore dressing is applicable to that smectite content accounts for the bentonite rich ore more than 80%, also is the beneficiation method that present various countries mainly adopt, and its typical process flow is to certain particle rank, with regard to packing and selling crushing raw ore, grinding.Though technology is simple, air pollution is serious, can not handle low-grade bentonite ore, and quality is difficult stable, is difficult to obtain stable qualified products.
It is the low-grade bentonite ore deposit of 30-80% that wet dressing is exclusively used in processing purifying montmorillonite content, and this new method is just development to some extent of countries in the world after the seventies.Existing United States Patent (USP) 3865240 wet dressings are the methods of chemical treatment that adopt sodium hexametaphosphate solution, technology is complicated, harsh to time requirement, be difficult to control, and calgon, consumption is big, low to the selected efficient of montmorillonite, water consumption is big, and equipment capacity is low, ore dressing purification costs height.
Purpose of the present invention: selected low-grade bentonite ore deposit, fall mud, sand and other impurity in the ore with choosing, improve smectite content, to enlarge and to open up the bentonitic scope of application and field.
The technical scheme of bentonite wet dressing of the present invention adopts following five operations:
2. 1. broken raw ore to 1 or 2～3 millimeters smash slurry or ore grinding, 3. hydrocyclone sorting, 4. flocculation, 5. floccule body dehydration.
Because montmorillonite is softer, water imbibition is stronger, energy disintegration behind the water-swellable, therefore the bentonite raw ore is crushed to 1 millimeter through jaw crusher and double-roll crusher, be equipped with ore pulp with smashing the slurry legal system then, meet water for certain and can not produce disintegration or the bad bentonite ore of disintegration, can be crushed to 2～3 millimeters, take milling method to prepare ore pulp then.Its two kinds of concentration of smashing slurry and ore grinding all are advisable with 15-22%.
The bentonite ore pulp through disperseing to form the suspension that is mainly the montmorillonite particle, forms charged bentonite micelle with regard to the montmorillonite single particle in water, form band reversed charge sheath, i.e. a double electrical layers under the electrostatic attraction effect around the micelle again.This stability of suspension is good, even the process a few days can not be settled out the clear water layer yet.
Reach in view of the foregoing and consider industrial needs, bentonitic wet separation is suitable for using reselecting method, so the present invention adopted hydrocyclone sorting ore pulp, removes silt particle and impurity thus.
The technical characterictic of wet beneficiation craft of the present invention is simply to have adopted three kinds of chemicals treatment concentrate pulps, overcomes the difficult point of bentonite ore dressing filtering means dehydration.At first align the pH value of ore pulp to the 3-6 scope with technical hydrochloric acid or other acids, its purpose will be destroyed the proterties of bentonite ore pulp, but be unlikely to influence bentonitic inherent characteristic, add the industrial sulphuric acid aluminum solutions then as flocculation accelerator, its addition is saved flocculant thus so that pulp PH value reduces 0.2-1 again is advisable, and floccule body viscosity is reduced, loosely organized, dehydration easily.Add polyacrylamide solution at last and make flocculant, impel the concentrate pulp flocculation sediment, take off a part of water.Be the big water gaging that still contains in the floccule body of brain shape finally forms 5 millimeter with the dehydration of vacuum press band filter filter cake.
The present invention has finished the new technology of the industrialness production of a cover bentonite wet dressing owing to overcome the difficulty of flocculation filtration dehydration.Its essence mine dehydration index can reach: its water capacity of filter cake moulding is 46～63.6%, and average out to 55.73%, filtrate solid content are 0.071-0.0027%, average out to 0.014%.
The present invention is more superior than the wet separation technology of United States Patent (USP) 3865240, flow process is simple, and technology is continuous, and production capacity is bigger; sorting index is better; in technical process operation sternly is not convenient in the requirement of time, water consumption is less, and medicament expense is lower; the filter cake moulding is good; water capacity is lower, and the filtrate solid content is also lower, and dressing expenses is lower.
Most preferred embodiment of the present invention:
With seven layers of ore wet process ore dressing of Linan, Zhejiang bentonite is example, raw ore is crushed to 1 millimeter through jaw crusher, soak after 16 hours, through smashing slurry, sorting on the cyclone that under certain pressure ore pulp is fed the 600EX model again, and fixedly the sand removing hole size and the overfall size of cyclone make bentonite obtain sorting preferably, by roughly selecting and selected back acquisition concentrate, align pulp PH value to 4.5 with the technical hydrochloric acid of concentration 20% then, add concentration again and be 20% industrial sulphuric acid aluminum solutions, make ore pulp PH to 4, adding concentration at last is 0.1% polyacrylamide solution flocculant, impel the concentrate flocculation sediment to remove filtrate, then the concentrate floccule body is fed the vacuum press band filter, with 200 millimetres of mercury vacuums, 0.70 meter/minute strainer speed, filtering means dehydration forms the filter cake with production capacity.
Claims (4)
1, a kind of wet-type mineral concentration method for swelled soil, by crushing raw ore, smash slurry (or ore grinding) and hydrocyclone sorting, operations such as flocculation and floccule body dehydration are formed, it is characterized in that ore pulp adopts technical hydrochloric acid or other acids to handle ore pulp earlier before flocculation, the levelling pH value is in the 3-6 scope, use industrial aluminum sulfate solution as flocculation accelerator again, making pulp PH value reduce by 0.2～1 again is advisable, make the ore pulp flocculant with polyacrylamide solution, flocculation back ore pulp dewaters with vacuum press band filter press filtration and forms the filter cake of 5 millimeter.
2, wet-type mineral concentration method for swelled soil according to claim 1 is characterized in that the technical hydrochloric acid concentration that adopts is 20%.
3, wet-type mineral concentration method for swelled soil according to claim 1 is characterized in that the industrial aluminum sulphate solution concentration that adopts is 20%.
4, wet-type mineral concentration method for swelled soil according to claim 1 is characterized in that the concentration of the polyacrylamide solution that adopts is 0.1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87100932A CN87100932B (en) | 1987-02-27 | 1987-02-27 | Wet-type mineral concentration method for swelled soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87100932A CN87100932B (en) | 1987-02-27 | 1987-02-27 | Wet-type mineral concentration method for swelled soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87100932A true CN87100932A (en) | 1988-09-07 |
| CN87100932B CN87100932B (en) | 1988-11-23 |
Family
ID=4813068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87100932A Expired CN87100932B (en) | 1987-02-27 | 1987-02-27 | Wet-type mineral concentration method for swelled soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87100932B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323942C (en) * | 2005-04-04 | 2007-07-04 | 崔凤才 | Deposition and purification method for borax ore |
| CN102602949A (en) * | 2012-03-03 | 2012-07-25 | 济南康众医药科技开发有限公司 | Preparation method of mineral-fiber-free montmorillonite |
| CN116002695A (en) * | 2023-01-04 | 2023-04-25 | 苏州中材非金属矿工业设计研究院有限公司 | High-viscosity easily-dispersible inorganic gel and preparation method thereof |
-
1987
- 1987-02-27 CN CN87100932A patent/CN87100932B/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323942C (en) * | 2005-04-04 | 2007-07-04 | 崔凤才 | Deposition and purification method for borax ore |
| CN102602949A (en) * | 2012-03-03 | 2012-07-25 | 济南康众医药科技开发有限公司 | Preparation method of mineral-fiber-free montmorillonite |
| CN116002695A (en) * | 2023-01-04 | 2023-04-25 | 苏州中材非金属矿工业设计研究院有限公司 | High-viscosity easily-dispersible inorganic gel and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN87100932B (en) | 1988-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102069033A (en) | Method for separating and extracting feldspar ore with complex impurity components | |
| CN103073101A (en) | Cationic polyacrylamide-modified Fe3O4 magnetic flocculant and preparation method thereof | |
| CN103663481A (en) | Purification technology for low-grade bentonite | |
| CN105858964A (en) | Tailing mud water treatment method for wet coal preparation plant | |
| CN112125314B (en) | Illite and preparation method and application thereof | |
| CN101215053B (en) | Circulation utilization method for waste water in seaweed chemical industry production | |
| CN87100932A (en) | Wet-type mineral concentration method for swelled soil | |
| CN100390191C (en) | Method for extracting crude baicalin from scutellaria root | |
| CN208308443U (en) | A kind of iron tailings prepares high-purity silicon dioxide system | |
| CN110420482A (en) | A kind of composite flocculation agent for handling oil-sand mine tailing and the processing method for curing thin tailing | |
| CN100411706C (en) | Method of dewatering concentrated bauxite | |
| CN203545833U (en) | Underground mine water treatment system | |
| CN1037098A (en) | A kind of regime of agent of flotation magnesite ore | |
| CA1092363A (en) | Filtration dewatering of iron ore concentrates | |
| CN1101592A (en) | Kaoline selective dispersing and flocculating iron-removing technology | |
| CN106745014A (en) | A kind of method of purification of low taste sepiolite | |
| CN110194516A (en) | It is a kind of handle black water flocculant and its application and slime water treatment method | |
| CN1465441A (en) | Dense-media and flotation combined coal-dressing optimization method | |
| CN1248984C (en) | High pure attapulgite clay and preparation method | |
| CN101805085A (en) | Method for treating desliming wastewater of reverse flotation of bauxite | |
| CN108543623A (en) | A kind of purifying technique of sepiolite | |
| CN213623631U (en) | Treatment device for emulsified oil sludge-containing wastewater in gem processing | |
| CN109999563A (en) | A kind of coal slime filter-pressing method | |
| CN111167611A (en) | Reverse flotation method for continuously grinding silicon-calcium collophanite | |
| KR20170128539A (en) | Filtration aid and filtration treatment method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| PB01 | Publication | ||
| C06 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |