CN1074902A - Xanthogenate synthesizes-moulding-dry three machine technologies - Google Patents
Xanthogenate synthesizes-moulding-dry three machine technologies Download PDFInfo
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- CN1074902A CN1074902A CN 92111763 CN92111763A CN1074902A CN 1074902 A CN1074902 A CN 1074902A CN 92111763 CN92111763 CN 92111763 CN 92111763 A CN92111763 A CN 92111763A CN 1074902 A CN1074902 A CN 1074902A
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- xanthate
- machine
- xanthogenate
- sheet
- bar
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Abstract
Xanthogenate synthesizes-moulding-dry three machine technologies; be characterized in that powder-like product that direct synthesis technique is produced makes grain, the sheet, bar-shaped of certain size through horizontal ring mould or vertical flat-die class pressing granula machine; pass through vertical disk vibration drier or vibrated fluidized bed drier again, cryodrying becomes grain, sheet, the bar-shaped xanthogenate product of main content 〉=90% under normal pressure or decompression.This technology has shortened the time of drying of xanthogenate greatly, has avoided its decomposition, has overcome the easy moisture absorption caking of existing powder-like product simultaneously, and easily oxygenolysis is used major defects such as inconvenience, is a kind of comparatively ideal xanthogenate production technique.
Description
The invention provides a kind of xanthogenate synthesizes-moulding-dry three machine technologies.
The external production technique of xanthogenate (being commonly called as xanthate, hereinafter to be referred as xanthate) drying and moulding product is after producing dry xanthate (powdery) with solvent method, reshaping, and granulation can be represented by the formula.
ROH, CS
2, NeoH (solvent)/() xanthate dry product (powdery) ()/() → domestic production technique of xanthate dry product (granular) is to adopt direct synthesis technique to produce the powdery xanthate, forms dry xanthate through vacuum-drying again, represent with following formula:
ROH, CS
2, NeoH (kneading machine)/() xanthate synthetics (powdery) (Vacuumdrier)/() xanthate dry product (powdery)
In the formula, the R-alkyl (is CnH
2N+1, n=2,3,4,5,6,7,8 ...).
Ne-metal K, Na ion
External solvent process is because solvent reasons such as (pentanes), domestic can't the employing, and the powdery xanthate that domestic direct synthesis technique is produced exists easy moisture absorption, caking, unstable chemcial property is easily decomposed in easily oxidation, defectives such as it is inconvenient to use, and environmental pollution is serious are difficult to satisfy actual needs.
Synthetic-moulding-dry three machine technologies that purpose of the present invention aims to provide a kind of xanthate are the granulated dried xanthate with the further deep processing of powdery xanthate synthetics, thereby overcome the deficiencies in the prior art.
Technical solution of the present invention is: the present invention is three unique machine system process of utilization on the existing at home synthetic xanthate technology basis, is the granulated dried product with the further deep processing of powdery synthetics xanthate.Three machine technologies of the present invention are meant to be 5-15%(weight by the directly synthetic generation water content of kneading machine at first; Powdered xanthate down together); grain, sheet, the bar-shaped xanthate of certain size made in horizontal ring mould of process or the moulding of vertical flat-die class pressing granula machine; pass through vertical disk vibration drier or vibrated fluidized bed drier again, cryodrying becomes grain, the sheet of xanthogenate master content 〉=90%, a whole set of three machines process system of bar-shaped form xanthate under normal pressure or decompression.The present invention can illustrate with following formula, that is:
ROH, CS
2, NeOH (kneading machine)/() xanthate synthetics (powdery) (shaper)/() xanthate synthetics (grain) (drying machine)/() xanthate dry product
The moulding of xanthate of the present invention is meant that through the tablets press extrusion molding tablets press is meant horizontal ring mould class pressing granula machine such as KY(W), series such as YL or vertical flat-die class pressing granula machine such as KYL series; Its drying temperature is 20-120 ℃, and drying pressure is 0～1 * 10
5Pa, the grain of xanthate, sheet, the bar-shaped diameter phi 2-φ 20mm that is of a size of, high (length) degree 2-30mm.The xanthate drying machine is vertical disc-like drying machine such as WZC series etc. or fluid bed dryer such as GZQ series etc.
Accompanying drawing is the synoptic diagram of technology of the present invention.
Among the figure, I-kneading machine, II-horizontal ring mould or vertical flat-die pressing granula machine, III-vertical disk vibration or fluidized-bed vibrating dryer.
Major advantage of the present invention is:
1, the present invention has shortened drying time greatly, and existing general vacuum drying process needs 5-7 hour, and technology of the present invention drying under normal pressure only needs 20-50 minute.
Even 2, the present invention's low temperature drying under normal pressure can prevent effectively that also xanthate from decomposing, Thereby improved the xanthate quality.
3, the present invention can reduce the dust pollution of xanthate, improves the casting yield in the production process, and the decrease product cost has also prevented that the chemical dust in the use procedure from polluting simultaneously effectively, has good social benefit and economic benefit.
4, product of the present invention has overcome the easy moisture absorption of powdery xanthate, caking, easily oxidation effectively, has easily decomposed, and unstable chemcial property uses major defects such as inconvenience, is a kind of comparatively ideal particulate state xanthate production technique.
Embodiment (producing the sodium ethyl xanthate product):
1) with NaOH, CS
2, C
2H
5The OH raw material drops into building-up reactions machine (kneading machine), generates main content and be 82.5% powdery sodium ethyl xanthate.
2) the powdery sodium ethyl xanthate being sent into horizontal ring mold pressing grain machine, to make diameter be that φ 4mm, length are the particulate state sodium ethyl xanthate that 5-10mm does not wait.
3) granular sodium ethyl xanthate is sent into vertical disk vibration drying machine, at normal temperatures, the control drying temperature is a 40-65 ℃ of scope, and through after 38 minutes dryings, promptly winner's content is 91.5% shaping and drying xanthate product.
Claims (6)
1, xanthogenate synthesizes-moulding-dry three machine technologies; be the Powdered xanthate hydrochlorate of 5-15% at first by the directly synthetic generation water content of kneading machine; it is characterized in that Powdered xanthogenate is made through horizontal ring mould or vertical flat-die class pressing granula machine grain, the sheet, bar-shaped of certain size; pass through vertical disk vibration drier or vibrated fluidized bed drier again, cryodrying becomes grain, sheet, the bar-shaped xanthogenate product of main content greater than (or equaling) 90% under normal pressure or decompression.
2, three machine technologies according to claim 1 is characterized in that the xanthate forming technology is through grain tablets press extruding granulating, sheet, bar-shaped xanthate with xanthate.
3, three machine technologies according to claim 2 is characterized in that the xanthate tablets press is meant horizontal ring mould pressing granula machine, as KY(W), serial tablets press such as YL, or vertical flat-die pressing granula machine are as KYL series pressing granula machine.
4, technology according to claim 1 is characterized in that grain, sheet, the bar-shaped diameter phi 2-φ 20mm that is of a size of of xanthate, and high (length) degree is 2-30mm.
5, technology according to claim 1 is characterized in that the xanthate drying machine is meant vertical disk vibration drier such as WZC series etc. or Vibratingfluidbeddrier such as CZQ series etc.
6, technology according to claim 1 or 5 is characterized in that the xanthate drying process temperature is 20-120 ℃, and drying pressure is 0～-1 * 10
5Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92111763 CN1029399C (en) | 1992-12-15 | 1992-12-15 | Synthesizing, shaping and drying process of xanthate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92111763 CN1029399C (en) | 1992-12-15 | 1992-12-15 | Synthesizing, shaping and drying process of xanthate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1074902A true CN1074902A (en) | 1993-08-04 |
| CN1029399C CN1029399C (en) | 1995-08-02 |
Family
ID=4945503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92111763 Expired - Fee Related CN1029399C (en) | 1992-12-15 | 1992-12-15 | Synthesizing, shaping and drying process of xanthate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1029399C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817014A (en) * | 2014-02-21 | 2014-05-28 | 中南大学 | Preparation method for granular xanthate |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10156617A1 (en) * | 2001-11-17 | 2003-05-28 | Biosphings Ag | Preparation of pure stereoisomers of tricyclo [5.2.1.0 ·· 2 ··. ·· 6 ··] -dec-9-yl-xanthate and medicinal products therefrom |
-
1992
- 1992-12-15 CN CN 92111763 patent/CN1029399C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817014A (en) * | 2014-02-21 | 2014-05-28 | 中南大学 | Preparation method for granular xanthate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1029399C (en) | 1995-08-02 |
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