CN1072354A - The production technology of excellent, granular xanthates - Google Patents
The production technology of excellent, granular xanthates Download PDFInfo
- Publication number
- CN1072354A CN1072354A CN 91110800 CN91110800A CN1072354A CN 1072354 A CN1072354 A CN 1072354A CN 91110800 CN91110800 CN 91110800 CN 91110800 A CN91110800 A CN 91110800A CN 1072354 A CN1072354 A CN 1072354A
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- xanthates
- granular
- production technology
- rod
- extruder
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The production technology of a kind of rod, granular xanthates, its technical process is that highly basic, carbon disulfide, aliphatic alcohols are generated the powdery xanthates in synthesis reactor, in the powdery xanthates, add organic solvent again, through mixing, extruding, vacuum drying, can obtain rod, granular xanthates.Have xanthates content height, moisture, volatile matter, free alkali etc. are few, transportation, advantage easy to use.Can be widely used in the ore dressing and the flotation of non-ferrous metal.
Description
The present invention relates to the production of non-ferrous metal ore with medicament, more detail is the production and processing technology of the granular xanthates of a kind of rod.
Xanthates is a kind of medicament that is widely used in ore dressing, and it is widely used in the flotation of non-ferrous metal, as can be used for the flotation of copper, zinc, iron, nickel etc.
At present widely used is the xanthates of powdery.
Its molecular formula:
R is C in the formula
1-C
6Alkyl, its production technology is:
1, Cheng Fenfa once:
A certain proportion of alcohols, carbon disulfide, NaOH or potassium hydroxide are generated molecular formula in the synthetic reaction machine be:
Xanthates, after vacuum drying, can obtain the xanthates of powdery again through packing machine packing.
2, solvent method (alcohol excess method)
Improve the content of alcohols in the reactant, make itself and carbon disulfide, NaOH or potassium hydroxide generate xanthates in the synthetic reaction machine, bake drying in drying machine is removed unnecessary solvent (alcohols), obtains the xanthates of powdery.
The major defect of powder product is at, dust pollution operating environment harm operator's health in the use, and powder product easy caking in packing container, is awkward.
In order to overcome powdery xanthates shortcoming in use, also the Powdered xanthates adding of handlebar certain quantity of additive is made granular and bar-shaped xanthates through punching press in mould.
But be to use the rod of above-mentioned explained hereafter, granular xanthates, because additive can have product purity lower therein, dissolution velocity is slow, the weak point that equipment manufacturing cost is high.
Present inventors are through repeatedly study with keen determination, discovery promptly can squeeze out synthetic powdery xanthates adding low carbon fat alcohol class, solvent naphtha by extruder then from orifice plate, can obtain rod, pelletized product through vacuum drying again, low-carbon alcohols and solvent naphtha are recyclable, have so far finished the present invention.
The objective of the invention is, eliminate the dust pollution in the operating environment, avoid operator's harmful dust to poison.
Second purpose of the present invention be, avoids powder product to lump in pail pack, helps mechanization preparation medicament.
The 3rd purpose of the present invention be, makes rod, granular xanthates better than the chemical stability in transportation, storage process of powdery.
In order to achieve the above object, the present invention is achieved in that
Highly basic, carbon disulfide, alcohols are generated xanthates in synthesis reactor, pack by mixer, extruder, vacuum drier and with the xanthates of drying, its main processes is:
A. the low-carbon (LC) alcohols that adds a certain amount of variable concentrations in synthetic powdery xanthates is as adhesive,
B. in synthetic powdery xanthates, add certain amount of solvent oil as additive,
C. the material that mixes is added and extrude in the extruder and in extrusion process, feed cooling water in the extruder chuck, being reduced in the heat that produces in the extrusion process,
D. the rod that squeezes out, granular xanthates carry out vacuum drying under 100 ℃～140 ℃ conditions.
Purpose of the present invention can also realize by following measure:
Need in the production of rod, granular xanthates in order to reduce production costs with the aliphatic alcohols aqueous solution of C1～C4 or with the alcohols of commercial grade.
In rod, granular xanthic production, need solubilizer oil as additive.It generally is solvent naphtha with 120-200 number.
In rod, granular xanthic production, need in the chuck of extruder, to feed cooling water.Generally be to use-30 ℃-5 ℃ chilled brine.
Produce rod, granular xanthates must adopt the screw propulsion extruder so as can be in large quantities, produce to serialization.
Have with the rod of production technology manufacturing of the present invention, granular xanthates: ethyl xanthate, isopropyl xanthan hydrochlorate, isobutyl group xanthates, normal-butyl xanthates, isopentyl xanthates etc., to satisfy the needs of different flotation of ores.
For better explanation the present invention, below enumerate embodiment and further specified:
Embodiment 1
Double centner powdery xanthates adds 13 kilogram of 85 alcohol of spending, and 3 kilograms of No. 200 solvent naphthas stir in mixer, adds then in the loading hopper of extruder, simultaneously to the logical cooling water of chuck.Starting motor constantly adds the powdery xanthates in the extruder and can extrude from orifice plate.And under the condition of 40 ℃ and 50Pa, carry out vacuum drying and get excellent, granular xanthates, product, and reclaim solvent by reclaimer.
Embodiment 2
Double centner powdery xanthates, the methyl alcohol that adds 15 kilogram of 50 degree, 3 kilograms of No. 120 solvent naphthas, in mixer, stir, add then in the loading hopper of extruder, simultaneously to the logical cooling water of chuck, start motor, the powdery xanthates is constantly added in the extruder and can extrude from orifice plate, and 130 and the condition of 20Pa under carry out vacuum drying and get product, reclaim solvent with reclaimer again.
Embodiment 3
Double centner powdery xanthates adds 13 kilogram of 95 degree butanols, 3 kilograms of No. 180 solvent naphthas, in mixer, stir, add then in the loading hopper of extruder, simultaneously to the logical cooling water of chuck, start motor, the powdery xanthates is constantly added in the extruder and can extrude from orifice plate.And under the condition of 100 ℃ and 20Pa, carry out vacuum drying and get product, reclaim organic solvent simultaneously.
The rod that is obtained by embodiment 1,2,3, the quality index of granular xanthates be, xanthates content 91～93%, and moisture content and volatile matter are less than 2%, and free alkali is less than 0.2%.
Rod, granular xanthates by the present invention obtains have xanthates content height, and moisture content, volatile matter, free alkali are few, and transportation, advantage easy to use can be widely used in the ore dressing and the flotation of non-ferrous metal.
Claims (5)
1, a kind of production technology of beneficiation reagent is that highly basic, carbon disulfide, aliphatic alcohols are generated xanthates in synthesis reactor, by the production technology of mixing, extruding, vacuum drying, packing, it is characterized in that again
A. the low carbon fat alcohol class that adds a certain amount of variable concentrations in synthetic powdery xanthates is as adhesive,
B. in synthetic powdery xanthates, add certain amount of solvent oil as additive,
C. the xanthates that mixes is added in the extruder and extrude, in the extruder chuck, feed cooling water during extruding, being reduced in the heat that produces in the extrusion process,
D. the rod that squeezes out, granular xanthates carry out vacuum drying under 100 ℃～140 ℃ conditions.
2, the rod of ore dressing, the production technology of granular xanthates of being used for according to claim 1 is characterized in that extrusion bonded dose of used fatty alcohol is the alcohols of C1～C4, and its concentration of aqueous solution is by 10～99%.
3, the production technology that is used for the excellent granular xanthates of ore dressing according to claim 1, the additive that it is characterized in that pushing usefulness is 120～No. 200 flux oil.
4, the rod of ore dressing, the production technology of granular xanthates of being used for according to claim 1 is characterized in that the interior chilled brine that feeds 5 ℃～-30 ℃ of extruder chuck.
5, the production feature that is used for the rod of ore dressing, granular xanthates according to claim 1 is to adopt the screw propulsion extruder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91110800 CN1027141C (en) | 1991-11-21 | 1991-11-21 | Production process of bar or granular xanthate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91110800 CN1027141C (en) | 1991-11-21 | 1991-11-21 | Production process of bar or granular xanthate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1072354A true CN1072354A (en) | 1993-05-26 |
| CN1027141C CN1027141C (en) | 1994-12-28 |
Family
ID=4910272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91110800 Expired - Fee Related CN1027141C (en) | 1991-11-21 | 1991-11-21 | Production process of bar or granular xanthate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027141C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101259451B (en) * | 2008-04-24 | 2012-01-11 | 中南大学 | Preparation of floating collector |
| 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 |
|---|---|---|---|---|
| CN106269273A (en) * | 2016-08-08 | 2017-01-04 | 合肥万泉非金属矿科技有限公司 | A kind of PPM level low ferrum glass sand floating agent |
-
1991
- 1991-11-21 CN CN 91110800 patent/CN1027141C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101259451B (en) * | 2008-04-24 | 2012-01-11 | 中南大学 | Preparation of floating collector |
| CN103817014A (en) * | 2014-02-21 | 2014-05-28 | 中南大学 | Preparation method for granular xanthate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1027141C (en) | 1994-12-28 |
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