CN102304298A - Pigment red 254 postprocessing technology - Google Patents
Pigment red 254 postprocessing technology Download PDFInfo
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- CN102304298A CN102304298A CN201110167976A CN201110167976A CN102304298A CN 102304298 A CN102304298 A CN 102304298A CN 201110167976 A CN201110167976 A CN 201110167976A CN 201110167976 A CN201110167976 A CN 201110167976A CN 102304298 A CN102304298 A CN 102304298A
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- pigment red
- weight
- crude product
- solution
- paratonere
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- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention discloses a pigment red 254 postprocessing technology, which is characterized by comprising the following steps of: adding a crude product of pigment red 254 into a reaction kettle, and adding 95 mass percent organic solution and 30 mass percent NaOH solution, wherein the weight of the added organic solution is 9 to 11 times that of the crude product of pigment red 254, and the weight of the added NaOH solution is 0.05 to 0.1 time that of the crude product of pigment red 254; heating to the temperature of between 60 and 80DEG C, stirring for 4.5 to 5.5 hours; pressing the materials into a filter press, washing the materials with more than 95 mass percent organic solvent of which the weight is 1.5 to 3 times that of the pigment red 254, washing with water until the pH value of filtrate is 8; and drying the obtained filter cake with the solid content of 40-45 percent in a common oven to obtain the finished product. The invention has the advantages that: the pigment red 254 postprocessing technology is easy and convenient to operate, the work efficiency is high and the produced product has higher stability.
Description
Technical field
The present invention relates to the aftertreatment technology of Pigment red 254, belong to chemical field.
Background technology
Aftertreatment technology to Pigment red 254 generally is to adopt grinding technics at present, and this process energy consumption is higher, and production capacity is very low, and loss ratio is bigger.
Summary of the invention
The objective of the invention is: to above-mentioned deficiency, the aftertreatment technology of a kind of processing ease, simple, energy consumption is low, efficient is high Pigment red 254 is provided.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:
The aftertreatment technology of paratonere 254; It is characterized in that: comprise the steps; Crude product with paratonere 254 adds in the reactor at normal temperatures; Add mass concentration simultaneously and be 95% organic solution and mass concentration and be 30% NaOH solution; The weight of the organic solution that adds is 9-11 times of paratonere 254 crude product weight; The weight of the NaOH solution that adds is 0.05-0.1 times of paratonere 254 crude product weight; Rising temperature to 60-80 ℃; And stirred 4.5-5.5 hours; Then material is pressed in the filter press; Material is washed greater than 95% organic solvent with mass concentration; The weight of the organic solvent that adds is 1.5-3 times of paratonere 254 weight; After organic solvent uses; Then use water washing again; PH value until filtrating is 8, is that 40%-45% filter cake is put into a conventional oven and carried out drying with the solid content of gained, gets product.
Further, described NaOH solution can replace with deionized water, and the weight of deionized water is 1.5-2.5 times of Pigment red 254 crude product weight.
Further, said organic solution is any one in methanol solution, ethanolic soln or the DMF solution.
Further, said organic solvent is any one among methyl alcohol, ethanol or the DMF.
Advantage of the present invention is: the aftertreatment technology of Pigment red 254 of the present invention, and than adopting grinding technics that Pigment red is carried out aftertreatment, its operation is more convenient, simple, and working efficiency is higher, and the product stability of making is better.
Embodiment
Below all embodiment further specify of the present invention, but do not limit protection scope of the present invention.
Embodiment 1
The crude product of the Pigment red 254 of 300 weight parts is added in the reaction kettle; Add 2900 weight part concentration simultaneously and be 95% methanol solution and 20 weight part concentration and be 30% NaOH solution; Elevated temperature to 65 ℃; And stirred 4.5 hours; Then material is pressed in the pressure filter; With the mass concentration of 500 weight parts greater than 95% methanol wash; After organic solvent uses; Use water washing again; PH value up to filtrating is 8; Be that 40% filter cake is put a conventional oven into and carried out drying then with 700 weight part solid contents, get product.
Embodiment 2
The crude product of the Pigment red 254 of 300 weight parts is added in the reaction kettle; Add 3200 weight part concentration simultaneously and be 95% ethanolic soln and 20 weight part concentration and be 30% NaOH solution; Elevated temperature to 75 ℃; And stirred 5 hours; Then material is pressed in the pressure filter; With the mass concentration of 500 weight parts greater than 95% methanol wash; After organic solvent uses; Use water washing again; PH value up to filtrating is 8; Be that 42% filter cake is put a conventional oven into and carried out drying then with 700 weight part solid contents, get product.
Embodiment 3
The crude product of the Pigment red 254 of 300 weight parts is added in the reaction kettle; Then, adding 2950 weight part concentration simultaneously is the deionized water of DMF solution and 500 weight parts, and elevated temperature is to reflux temperature; And stirred 4 hours; Then material is pressed in the pressure filter, with 800 weight part mass concentrations greater than 95% DMF washing, after organic solvent uses; Use water washing again; PH value up to filtrating is 8, is that 45% filter cake is put a conventional oven into and carried out drying then with 700 weight part solid contents, gets product.
The aftertreatment technology of Pigment red 254 of the present invention, than adopting grinding technics that Pigment red is carried out aftertreatment, its operation is more convenient, simple, and working efficiency is higher, and the product stability of making is better.
Claims (4)
1. the aftertreatment technology of paratonere 254; It is characterized in that: comprise the steps; Crude product with paratonere 254 adds in the reactor at normal temperatures; Add mass concentration simultaneously and be 95% organic solution and mass concentration and be 30% NaOH solution; The weight of the organic solution that adds is 9-11 times of paratonere 254 crude product weight; The weight of the NaOH solution that adds is 0.05-0.1 times of paratonere 254 crude product weight; Rising temperature to 60-80 ℃; And stirred 4.5-5.5 hours; Then material is pressed in the filter press; Material is washed greater than 95% organic solvent with mass concentration; The weight of the organic solvent that adds is 1.5-3 times of paratonere 254 weight; After organic solvent uses; Then use water washing again; PH value until filtrating is 8, is that 40%-45% filter cake is put into a conventional oven and carried out drying with the solid content of gained, gets product.
2. the aftertreatment technology of Pigment red 254 according to claim 1 is characterized in that: described NaOH solution can replace with deionized water, and the weight of deionized water is 1.5-2.5 times of Pigment red 254 crude product weight.
3. the aftertreatment technology of Pigment red 254 according to claim 1 is characterized in that: said organic solution is any one in methanol solution, ethanolic soln or the DMF solution.
4. the aftertreatment technology of Pigment red 254 according to claim 1 is characterized in that: said organic solvent is any one among methyl alcohol, ethanol or the DMF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110167976A CN102304298A (en) | 2011-06-22 | 2011-06-22 | Pigment red 254 postprocessing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110167976A CN102304298A (en) | 2011-06-22 | 2011-06-22 | Pigment red 254 postprocessing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102304298A true CN102304298A (en) | 2012-01-04 |
Family
ID=45378221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110167976A Pending CN102304298A (en) | 2011-06-22 | 2011-06-22 | Pigment red 254 postprocessing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102304298A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403349A (en) * | 2014-11-29 | 2015-03-11 | 嘉兴科隆化工有限公司 | Industrial production method of pigment yellow 97 |
| CN108250789A (en) * | 2018-02-08 | 2018-07-06 | 浙江浩川科技有限公司 | A kind of preparation method of paratonere 254 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555362A (en) * | 2008-04-11 | 2009-10-14 | 富士胶片株式会社 | Pigment dispersing composition and manufacturing method thereof, coloured polymerized composition, colour filter and manufacturing method thereof |
| CN101624476A (en) * | 2009-08-10 | 2010-01-13 | 南通市争妍颜料化工有限公司 | Production process of pigment red HT |
| CN101831197A (en) * | 2010-05-17 | 2010-09-15 | 南通市争妍颜料化工有限公司 | Production process for pigment red 254 variety HL with high covering power |
| CN101896257A (en) * | 2007-12-10 | 2010-11-24 | 巴斯夫欧洲公司 | Production of a solid pigment preparation in the form of granules by spray drying |
-
2011
- 2011-06-22 CN CN201110167976A patent/CN102304298A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101896257A (en) * | 2007-12-10 | 2010-11-24 | 巴斯夫欧洲公司 | Production of a solid pigment preparation in the form of granules by spray drying |
| CN101555362A (en) * | 2008-04-11 | 2009-10-14 | 富士胶片株式会社 | Pigment dispersing composition and manufacturing method thereof, coloured polymerized composition, colour filter and manufacturing method thereof |
| CN101624476A (en) * | 2009-08-10 | 2010-01-13 | 南通市争妍颜料化工有限公司 | Production process of pigment red HT |
| CN101831197A (en) * | 2010-05-17 | 2010-09-15 | 南通市争妍颜料化工有限公司 | Production process for pigment red 254 variety HL with high covering power |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403349A (en) * | 2014-11-29 | 2015-03-11 | 嘉兴科隆化工有限公司 | Industrial production method of pigment yellow 97 |
| CN104403349B (en) * | 2014-11-29 | 2017-07-21 | 嘉兴科隆化工有限公司 | A kind of industrialized preparing process of pigment yellow 97 |
| CN108250789A (en) * | 2018-02-08 | 2018-07-06 | 浙江浩川科技有限公司 | A kind of preparation method of paratonere 254 |
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Application publication date: 20120104 |
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| RJ01 | Rejection of invention patent application after publication |