CN102874859A - Process for preparing modified nano barium sulfate - Google Patents
Process for preparing modified nano barium sulfate Download PDFInfo
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- CN102874859A CN102874859A CN201210388070XA CN201210388070A CN102874859A CN 102874859 A CN102874859 A CN 102874859A CN 201210388070X A CN201210388070X A CN 201210388070XA CN 201210388070 A CN201210388070 A CN 201210388070A CN 102874859 A CN102874859 A CN 102874859A
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- modified nano
- barium sulfate
- filter cake
- filter
- press filtration
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Abstract
The invention discloses a process for preparing modified nano barium sulfate and relates to sulfate. The process comprises the following steps of: filtering and filter-pressing barium carbonate slurry which is directly used as a raw material, and feeding a filter cake into a slurrying working section; slurrying, and feeding into a chemical combination work section; after chemical combination, filtering and filter-pressing, slurrying the filter-pressed filter cake again, filtering and filter-pressing, and feeding the filter cake into a drying working section; and recovering clear liquid obtained after press-filtering by a sedimentation working section, and then feeding into a slurrying section. A product is prepared by the process, the discharge of waste water, waste gas and waste residues is avoided, the influence to ecological environment can be avoided, and the process has excellent economic and social benefit.
Description
Technical field
The present invention relates to vitriol, specifically a kind of technique for preparing modified nano-barium sulfate.
Background technology
Modified nano-barium sulfate is mainly as fields, particularly high-grade automobile finish such as printing ink, coating, plastic cement, rubber, electronics, makeup, medicine, food.Being used for rubber plastic after the pigment such as modified nano-barium sulfate and titanium dioxide mix can reduce the addition of pigment and can save cost about 50%.The about 25%(of modified nano-barium sulfate is considered adding proportion by different separately prescriptions) be applied to polypropylene PP, can make polypropylene PP surface like ABS, and not affect the existing characteristic of polypropylene PP, high glossiness and high rigidity surface is provided.Modified nano-barium sulfate is being in the first place in the world aspect the car surface lacquer, and the aspects such as, stable chemical nature strong at weather resistance, flowability have the advantage of not replacing.
Purposes for the modified nano-barium sulfate product more and more extensively reaches the huge situation of the market demand potential, and the contriver takes full advantage of Majiang County and the well-off condition of peripheral raw material resources, and a kind of technique for preparing modified nano-barium sulfate is provided.
Summary of the invention
The invention provides a kind of technique for preparing modified nano-barium sulfate, this process using sulfuric acid process is raw material production barium sulfate with the barium of barium carbonate slurry directly, and constant product quality, whiteness is good, product cut size is even and non-wastewater discharge.
Technical scheme of the present invention is: a kind of technique for preparing modified nano-barium sulfate, this technique is to be raw material with the barium of barium carbonate slurry directly, after the barium carbonate slurry passed through filtration and press filtration, filter cake sent pulp workshop section, after the pulp, enter chemical combination workshop section chemical combination, behind the chemical combination, after filtration press filtration, the filter cake after the press filtration is again through pulp, and then by after filtering press filtration, filter cake send drying section; All stillnesss of night after press filtration are reclaimed the pulp program of sending into by sedimentation workshop section.
In the above-mentioned technique, walk moisture content and other in a small amount moisture content losses by vapor zone in the filtration cakes torrefaction process, product per ton need replenish the about 300kg of fresh water.
Above-mentioned modified nano-barium sulfate adopts compound paper bag automatically to pack, and its performance and the method for inspection should meet the regulation in the GB/T8946-1998C type.
Production principle:
BaCO
3+H
2SO
4=BaSO
4+CO
2↑
Advantage of the present invention: adopt that explained hereafter of the present invention constant product quality, whiteness out is good, product cut size is even and non-wastewater discharge.Modified nano-barium sulfate is produced and is adopted cycling use of water, and whole production process does not have waste water to efflux.
Description of drawings
Fig. 1 is process flow sheet of the present invention.
Embodiment
Embodiment
Certain factory adopts technical scheme of the present invention, utilize the original barium carbonate production line of this factory, according to existing Site Design workshop scale and water electricity consumption condition and in conjunction with present market situation, take the barium carbonate of original production line as raw material, wherein the technical requirements of main raw material is as follows:
Barium carbonate content 〉=99%
The industrial sulphuric acid turbidity is qualified
Industrial sulphuric acid content 〉=98%
This technique is to be raw material with the barium of barium carbonate slurry directly, the barium carbonate slurry by filter and press filtration after, filter cake send pulp workshop section, after the pulp, enter chemical combination workshop section chemical combination, behind the chemical combination, after filtration press filtration, filter cake after the press filtration is again through pulp, and then by after filtering press filtration, filter cake send drying section; All stillnesss of night after press filtration are reclaimed the pulp program of sending into by sedimentation workshop section.
In the above-mentioned technique, walk moisture content and other in a small amount moisture content losses by vapor zone in the filtration cakes torrefaction process, product per ton need replenish fresh water 300kg.
Above-mentioned modified nano-barium sulfate adopts compound paper bag automatically to pack, and product hierarchy is the high-quality modified nano-barium sulfate, meets national standard HG/T2774-2009 requirement.Target level of product quality sees the following form:
Adopt this technique preparing product not have the waste water,waste gas and industrial residue discharging, can not impact ecotope, be 2.69 the payback period of adopting this technology investment, and the rate of recovery of investment is 37.15%, and economic benefit and social benefit are good.
Claims (3)
1. modified nano-barium sulfate technique, it is characterized in that this technique is is raw material with the barium of barium carbonate slurry directly, after the barium carbonate slurry passed through filtration and press filtration, filter cake sent pulp workshop section, after the pulp, enter chemical combination workshop section chemical combination, behind the chemical combination, after filtration press filtration, the filter cake after the press filtration is again through pulp, and then by after filtering press filtration, filter cake send drying section; All stillnesss of night after press filtration are reclaimed the pulp program of sending into by sedimentation workshop section.
2. modified nano-barium sulfate technique according to claim 1 is characterized in that product per ton need replenish fresh water 300kg.
3. modified nano-barium sulfate technique according to claim 1 is characterized in that described modified nano-barium sulfate adopts compound paper bag automatically to pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210388070XA CN102874859A (en) | 2012-10-15 | 2012-10-15 | Process for preparing modified nano barium sulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210388070XA CN102874859A (en) | 2012-10-15 | 2012-10-15 | Process for preparing modified nano barium sulfate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102874859A true CN102874859A (en) | 2013-01-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210388070XA Pending CN102874859A (en) | 2012-10-15 | 2012-10-15 | Process for preparing modified nano barium sulfate |
Country Status (1)
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| CN (1) | CN102874859A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58104621A (en) * | 1981-12-18 | 1983-06-22 | Kurita Water Ind Ltd | Desulfurization treatment of waste gas |
| CN101418140A (en) * | 2008-11-20 | 2009-04-29 | 胡智勇 | Surface modified barium sulfate base ultrafine function powder material and preparation method thereof |
| CN101899568A (en) * | 2010-07-23 | 2010-12-01 | 陕西华泽镍钴金属有限公司 | Method for producing electrolytic nickel by leaching chemically precipitated nickel sulfide with pure oxygen |
| CN101948636A (en) * | 2010-08-30 | 2011-01-19 | 佛山安亿纳米材料有限公司 | Preparation method of modified nanometer precipitated barium sulfate |
-
2012
- 2012-10-15 CN CN201210388070XA patent/CN102874859A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58104621A (en) * | 1981-12-18 | 1983-06-22 | Kurita Water Ind Ltd | Desulfurization treatment of waste gas |
| CN101418140A (en) * | 2008-11-20 | 2009-04-29 | 胡智勇 | Surface modified barium sulfate base ultrafine function powder material and preparation method thereof |
| CN101899568A (en) * | 2010-07-23 | 2010-12-01 | 陕西华泽镍钴金属有限公司 | Method for producing electrolytic nickel by leaching chemically precipitated nickel sulfide with pure oxygen |
| CN101948636A (en) * | 2010-08-30 | 2011-01-19 | 佛山安亿纳米材料有限公司 | Preparation method of modified nanometer precipitated barium sulfate |
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Application publication date: 20130116 |