CN1244444A - Method of producing active clay - Google Patents
Method of producing active clay Download PDFInfo
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- CN1244444A CN1244444A CN 99108721 CN99108721A CN1244444A CN 1244444 A CN1244444 A CN 1244444A CN 99108721 CN99108721 CN 99108721 CN 99108721 A CN99108721 A CN 99108721A CN 1244444 A CN1244444 A CN 1244444A
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- atlapulgite
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Abstract
Atlapulgete is used for treating waste water. The present invention features the atlapulgite producing steps including ore dressing; normal temperature solid-phase extrusion for activation by adding acid and atlapulgite containing excessive free acid as catalyst mother body; drying and crushing; and testing and packaging. The atlapulgite producing steps may be also be: ore dressing; pulping, purification and eliminating sand and water; liquid phase activation for 1-2 hr by adding acid and atlapulgite containing excessive free acid as catalyst mother body and water at 80-100 deg.c; suction filtering with the filtrate being reused in the pulping step; drying and crushing; and testing and packaging. The present invention has the advantages of no pollution, low production cost and simple operation.
Description
The present invention relates to the method for producing active clay technical field.
Account for certain status, widely used atlapulgite in national economy, not only production history is long, market position is firm, and still is in the stage of continuous rising.But the manufacture craft of present atlapulgite is as shown in Figure 1, and no matter domestic or external, do not make substantial progress decades, its expensive, poor benefit, and production process in serious acid pollution, restricted the development of this product and applied.Especially in the current environmental protection epoch, with great strength and vigour sour water is handled and discharging in the activated clay production process, forces the thin enterprise of part capital for want of to administer the enormous expenditure of sour water and haves no alternative but close, stop, change.Chinese patent also has the technology report of this respect.As the patent No. is that 90101333.1 activation of swelled ground, the patent No. are the production method of high-effect and activity clay by semi-hydrometallurgy of 90105982.X, its reaction adopts compressive reaction to improve the quality and the decolorizing ability of atlapulgite, does not still solve the sour water pollution problem preferably.And increase the production cost and the operation easier of reactor to a certain extent.
The object of the present invention is to provide the no acidic sewage discharge of a kind of production procedure, realize the method for producing active clay that CR production, production cost descend greatly.
Technical scheme of the present invention is to realize like this.This method for producing active clay is characterized in that steps in sequence is: 1, ore dressing; 2, the atlapulgite that adds acid and contain excessive free acid carries out the activation of extrusion normal temperature solid phase as catalyst Precursors, and above-mentioned sour addition is with mass percent concentration 98%H
2SO
4Be need activated bentonite 1-3% mass percent; The above-mentioned atlapulgite of excessive free acid that contains is for needing activated bentonite 0.5-1.5% mass percent; Above-mentioned excessive free acid content≤0.3～0.4% mass percent; 3, drying is pulverized; 4, finished product detection, packing.Also can be: 1, ore dressing for steps in sequence; 2, original soil making beating, purification, and discharging grit and water, the pH value of water 〉=6; 3, the atlapulgite that adds acid and contain excessive free acid is as catalyst Precursors and water, and activation is 1-2 hour under 80-100 ℃ of temperature, and above-mentioned sour addition is with mass percent concentration 98%H
2SO
4Counting needs activated bentonite 3-5% mass percent, and the above-mentioned active albefaction that contains excessive free acid is to need activated bentonite 0.5-1.5% mass percent; Above-mentioned excessive free acid content≤0.3-0.4% mass percent; Above-mentioned water is for needing activated bentonite quality 3-5 doubly; 4, suction strainer, filtrate cycle is to the purification step of pulling an oar; Filter residue is to next step; 5, drying is pulverized; 6, finished product detection, packing.
Above-mentioned acid is sulfuric acid, hydrochloric acid.
Its comprehensive production cost of the carclazyte that this production technology provides descends greatly, and the profit margin of this product is brought up to more than 30% by about 15% of routine, and promptly the industrial profit rate is enhanced about more than once.See the production cost comparison sheet.
Production cost relatively
One ton of atlapulgite finished product of every production prime cost contrast table
| Sulfuric acid (kg) | Coal (kg) | Electricity (degree) | Water (degree) | Man-hour | Waste water control | |
| Traditional handicraft | 150-250kg (general) (height) | Average about 300 | About average 100 degree | About average 100 degree | In traditional handicraft is " 1 " | Need |
| Xin Xin skilled worker's art skill | 40-60kg (general) (height) | General: substantially need not or a small amount of high: about double centner | General: high about 20 degree: about 50 degree | About 20 degree | New technology needs about 0.5 approximately | Do not need |
General: common atlapulgite.
High: high-efficient activated clay.
And do not have sour water discharging in the production procedure, and be its PH of common waste water 〉=6, realized CR production, not only can administer expense, and solve the environmental issue that makes the headache of enterprise for enterprise saves a large number of blowdown.
Its technology theory is according to Huffman ion sequence, hydrogen ion comes the foremost, even with under the isoconcentration, hydrogen ion also can get off calcium ion-exchanged, but consider various secondary responses and other factor, we only need two to the hydrogen ion that is four times in calcium ion, and it just can get off calcium ion-exchanged, in the practical operation, after bentonite cation exchange quantitative determination to the need activation, quantitatively add hydrogen ion amount, be equipped with the appropriate reaction condition again, just can realize the purpose of activation times over calcium ion.This by the sulfuric acid calculating of 98% content, in theory only needs the 1-3% of original soil amount just passable times over the hydrogen ion amount of calcium ion.
Description of drawings:
Fig. 1, activated clay production old technology block diagram;
Fig. 2, the common method for producing active clay block diagram of the present invention;
Fig. 3, high-efficient activated clay production method block diagram of the present invention.
Below in conjunction with description of drawings embodiments of the invention are further described:
The production method of embodiment 1, common atlapulgite, no specified otherwise is mass percent, benchmark is for needing the activated bentonite quality.
(1) ore dressing;
(2) adding mass percent concentration is that 98% sulfuric acid and the atlapulgite that contains excessive free acid are made catalyst Precursors carry out the activation of extrusion normal temperature solid phase to bentonite, and its ratio is 2%: 1%: 1;
(3) dry then, pulverizing;
(4) finished product detection, packing.
Embodiment 2, high-efficient activated clay production method:
(1) ore dressing;
(2) original soil making beating, purification and discharging grit and water, the pH value of water is more than or equal to 6;
(3) add mass percent concentration 98% sulfuric acid and the atlapulgite and the water that contain excessive free acid, activation is 2 hours under 100 ℃ of high temperature, and the sulfuric acid addition is 3%, and the atlapulgite that contains excessive free acid is 1%, and water is 4 times;
(4) suction strainer, filtrate cycle are to the purification step of pulling an oar, and filter residue is to next step;
(5) drying is pulverized;
(6) finished product detection, packing.
Various in principle concentration sulfuric acid can use as 93%, 33%, improve its input amount as long as convert.
Claims (3)
1, a kind of method for producing active clay is characterized in that steps in sequence is:
(1) ore dressing;
(2) add acid and carry out the activation of extrusion normal temperature solid phase as catalyst Precursors with the atlapulgite that contains excessive free acid;
Above-mentioned sour addition is with mass percent concentration 98%H
2SO
4Counting needs activated bentonite 1-3% mass percent;
The above-mentioned atlapulgite of excessive free acid that contains is for needing activated bentonite 0.5-1.5% mass percent;
Above-mentioned excessive free acid content≤0.3～0.4% mass percent;
(3) drying is pulverized;
(4) finished product detection, packing.
2, a kind of method for producing active clay is characterized in that steps in sequence is:
(1) ore dressing;
(2) original soil making beating, purification, and discharging grit and water, the PH of water 〉=6;
(3) atlapulgite that adds acid and contain excessive free acid is as catalyst Precursors and water, and activation is 1-2 hour under 80-100 ℃ of temperature;
Above-mentioned sour addition is with mass percent concentration 98%H
2SO
4Counting needs activated bentonite 3-5% mass percent;
The above-mentioned atlapulgite of excessive free acid that contains is for needing activated bentonite 0.5-1.5% mass percent;
Above-mentioned excessive free acid content≤0.3-0.4% mass percent;
Above-mentioned water is for needing activated bentonite quality 3-5 doubly;
(4) suction strainer, filtrate cycle is to the purification step of pulling an oar; Filter residue is to next step;
(5) drying is pulverized;
(6) finished product detection, packing.
3, production method as claimed in claim 1 or 2 is characterized in that described acid is sulfuric acid, hydrochloric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99108721 CN1244444A (en) | 1999-07-13 | 1999-07-13 | Method of producing active clay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99108721 CN1244444A (en) | 1999-07-13 | 1999-07-13 | Method of producing active clay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1244444A true CN1244444A (en) | 2000-02-16 |
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ID=5273459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99108721 Pending CN1244444A (en) | 1999-07-13 | 1999-07-13 | Method of producing active clay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1244444A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252207A (en) * | 2013-04-18 | 2013-08-21 | 黄山市白岳活性白土有限公司 | Method for continuously preparing activated clay |
-
1999
- 1999-07-13 CN CN 99108721 patent/CN1244444A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103252207A (en) * | 2013-04-18 | 2013-08-21 | 黄山市白岳活性白土有限公司 | Method for continuously preparing activated clay |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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