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Preparation method of C.I. pigment yellow 180

A technology of pigment yellow and molar ratio, applied in chemical instruments and methods, organic dyes, azo dyes, etc., can solve the problems of high dissolution cost and high ammonia nitrogen value

Active Publication Date: 2016-06-15
SHANGYU XINLI CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cost of dissolving the coupling components with potassium hydroxide is too high, and the ammonia nitrogen value in the coupling wastewater is relatively high

Method used

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  • Preparation method of C.I. pigment yellow 180
  • Preparation method of C.I. pigment yellow 180
  • Preparation method of C.I. pigment yellow 180

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Add 24.34 kg of water and 12.17 kg of 30% hydrochloric acid into the first beating pot, start stirring, add 13.7 kg of anthranilic acid, and beat at room temperature for half an hour. Finished, spare.

[0067] Add 48.68 kg of water and 24.34 kg of 30% hydrochloric acid into the second beating pot, start stirring, add 25.5 kg of 4-amino-N-(4-carbamoyl) phenylformamide, and beat at room temperature for 1 hour. Finished, spare.

[0068] Add 851.66kg of water and 425.83kg of 30% hydrochloric acid into the diazo pot, start stirring, add 244kg of 1,2-bis(o-aminophenoxy)ethane, beat for 10 minutes, then add 2.44kg of dispersant MF and 1000kg of ice, Beat for 1 hour. spare.

[0069] In the dissolving pot, add 227.7kg of water and 151.8kg of sodium nitrite until completely dissolved.

[0070] Add 3000kg of ice into the diazonium pot, cool down to 0°C, the first diazotization: start to add 345kg of sodium nitrite solution dropwise for the first time, the dropping time is 10~1...

Embodiment 2

[0075] Add 73.02 kg of water and 36.51 kg of 30% hydrochloric acid into the first beating pot, start stirring, add 27.4 kg of anthranilic acid, and beat at room temperature for half an hour. Finished, spare.

[0076] Add 121.7kg of water and 60.85kg of 30% hydrochloric acid into the second beating pot, start stirring, add 51kg of 4-amino-N-(4-carbamoyl)phenylformamide, and beat at room temperature for 1 hour. Finished, spare.

[0077] Add 1703.32kg of water and 547.5kg of 30% hydrochloric acid into the diazo pot, start stirring, add 244kg of 1,2-bis(o-aminophenoxy)ethane, beat for 10 minutes, then add 7.32kg of dispersant MF and 1000kg of ice, Beat for 1 hour. spare.

[0078] In the dissolving pot, add 331.2kg of water and 165.6kg of sodium nitrite until completely dissolved.

[0079] Add 3000kg of ice into the diazonium pot, cool down to 0°C, the first diazotization: start to drop the first 414kg of sodium nitrite solution, the dropping time is 10~15 minutes, the temperat...

Embodiment 3

[0084] Add 50kg of water and 25kg of 30% hydrochloric acid into the first beating pot, start stirring, add 20kg of anthranilic acid, and beat at room temperature for half an hour. Finished, spare.

[0085] Add 85kg of water and 42.5kg of 30% hydrochloric acid in the second beating pot, start stirring, add 38kg of 4-amino-N-(4-carbamoyl)phenylformamide, and beat at room temperature for 1 hour. Finished, spare.

[0086] Add 1278kg of water and 486.67kg of 30% hydrochloric acid into the diazo pot, start stirring, add 244kg of 1,2-bis(o-aminophenoxy)ethane, beat for 10 minutes, then add 4.9kg of dispersant MF and 1000kg of ice, beat 1 hour. spare.

[0087] In the dissolving pot, add 280kg of water and 158.7kg of sodium nitrite until completely dissolved.

[0088] Add 3000kg of ice into the diazonium pot, cool down to 0°C, the first diazotization: start to drop the first 380kg of sodium nitrite solution, the dropping time is 10-15 minutes, the temperature is kept at 0-5°C, Add...

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Abstract

The invention provides a preparation method of C.I. pigment yellow 180. The preparation method comprises the following steps: compounding three pigments in the synthetic process, carrying out diazotization by three-stage diazo, carrying out beating on 5-glycylacetylbenzimidazolone and carrying out high-pressure homogenization, and controlling pH value with trisodium phosphate so as to finally prepare the C.I. pigment yellow 180. The product has advantages of uniform particle size, soft particle, good light resistance and resistance transference, high tinting strength and excellent light resistance, heat resistance, solvent resistance, acid resistance and alkali resistance and processing application performance.

Description

technical field [0001] The invention relates to the technical field of pigment preparation, in particular to a preparation method of C.I. Pigment Yellow 180. Background technique [0002] C.I. Pigment Yellow 180; Benzimidazolone HG; Pigment Yellow HG; Permanent Yellow HG; [N-(2,3-Dihydro-2-oxo-1H-benzimidazolium)-5-yl]-3-oxo-butyramide; clear yellow HR. Has the following molecular structure: [0003] [0004] Pigment Yellow 180 is the only disazo pigment in the benzimidazolone yellow series. With high tinting strength, 0.3% pigment is needed to prepare high-density polyethylene with 1 / 3 standard color depth with 1% titanium dioxide. The pigment is a green light yellow that has been put on the market in recent years, with a hue angle of 88.7 degrees (1 / 3S.D., HDPE), and the specific surface area of ​​PVFast Yellow HG is 24m2 / g; it is suitable for plastic coloring, and its heat resistance stability in HDPE is At 290°C, the pigment is the same as the slightly reddish C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/20C09B35/035
CPCC09B35/035C09B67/0065
Inventor 陈建新倪越彪章立新方标
Owner SHANGYU XINLI CHEM IND CO LTD
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