CN102206425B - Preparation method of vat blue dye - Google Patents

Preparation method of vat blue dye Download PDF

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CN102206425B
CN102206425B CN2010101552595A CN201010155259A CN102206425B CN 102206425 B CN102206425 B CN 102206425B CN 2010101552595 A CN2010101552595 A CN 2010101552595A CN 201010155259 A CN201010155259 A CN 201010155259A CN 102206425 B CN102206425 B CN 102206425B
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vat blue
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dyestuff
vat
aminoanthraquinone
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陈四清
汤学斌
周多刚
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Jiangsu Yabang Wall Dyestuff Co.,Ltd.
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JIANGSU YABANG DYESTUFFS CO Ltd
ANHUI YABANG CHEMICAL Co Ltd
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Abstract

The invention relates to a preparation method of a vat dye of a vat blue 4 (I) dye. 1- aminoanthraquinone (II) is used as a raw material, and a hydrous cyclic urea derivative, N, N'-dimethyl propyleneurea (IIIa), is used as a medium; in the presence of a strong base, potassium hydroxide, and a phase-transfer catalyst, condensation is performed using oxygen or air as an oxidant; when the reaction endpoint is reached, filtration, washing and drying are performed to obtain dianthraquinone-N, N'-dihydroazine, that is vat blue 4 (I), with high yield and high purity. After being further refined, the dye can be used as pigment-grade vat blue 4 (I).

Description

A kind of preparation method of vat blue dyestuff
Technical field:
The present invention relates to a kind of preparation method of vat dyes, is to adopt synthetic Vat blue 4 (I) dyestuff of new technology more specifically, belongs to the manufacturing technology field of chemical dyestuff.
Background technology:
Vat blue 4 (I) is a kind of appearance anthraquinone vat dyes the earliest, is made first in 1901 by the rich grace of Germanization scholar R..It is mainly used in cotton fiber dyeing and cotton printing, also is used for two of vinylon and cotton blend, polyester-cotton fabric and bathes resisdye, also is used to make pigment for printing ink.Its traditional processing technology is to be raw material with the 2-aminoanthraquinone; In molten potassium hydroxide, sodium hydroxide and sodium acetate, anhydrous, carry out the condensation closed loop; Be reduced into leuco compound with vat powder behind the thin up and separate with impurity through filtering, again the leuco compound oxidation is obtained finished product, its yield is about 56%.Seriously polluted, problems such as yield is low, energy consumption is high, poor stability that this technology exists.Afterwards along with the progress of 1-aminoanthraquinone technology; 1-aminoanthraquinone (II) conveniently is easy to get; Begin employing in big production after nineteen ninety and be raw material, in solvent DMSO 99.8MIN. medium and in the presence of the highly basic Pottasium Hydroxide, be that oxygenant carries out condensation, again with the refining finished product that obtains of vat powder reduction with oxygen or air with 1-aminoanthraquinone (II); Its yield is about 75%; This technology has certain progress than 2-aminoanthraquinone alkali fusion technology, but has problems such as seriously polluted, that yield is low, the solvent DMSO 99.8MIN. recovery is low, and the waste gas that the DMSO 99.8MIN. oxidation produces is difficult to administer.With 1, the 3-dimethyl-imidazolinone replaces the technology of DMSO 99.8MIN. that many reports (like CN1105713C, CN101205415A) are also arranged simultaneously.The Vat blue 4 that this method obtains (I) is though the unknown impuritie that contains lacks than the technology of front, and these unknown impurities can make the deepening of dyestuff tone, still do not reach normal quality requirements.In order to remove these impurity, must handle purifying products through vat powder.This process recovery ratio is about 94%, yet generally has only 88% through the yield behind the refining purifying of vat powder, and is difficult to obtain pigment-level Vat blue 4 (I) product.
Summary of the invention:
The objective of the invention is: the preparation method that a kind of new Vat blue 4 (I) dyestuff is provided.Adopt that this method operation is simple, the raw and auxiliary material utilization ratio is high, three wastes generation is few, plant factor is high, facility investment is few, adopt that the good product quality of this method gained, yield are high, production cost significantly reduces.
Realize that technical scheme of the present invention is: with 1-aminoanthraquinone (II) is raw material, at aqueous N, in N '-diformazan basic ring allylidene urea (IIIa) medium; Doing condensing agent, oxygen or air with Pottasium Hydroxide makees oxygenant, in the presence of phase-transfer catalyst, carries out condensation reaction; Cool to 95-100 ℃ after reaching the condensation terminal point, add water isolation and cool to 75-80 ℃ simultaneously, collect mother liquor and mix recovery solvent N with filter cake washing liquid; N '-diformazan basic ring allylidene urea (IIIa) recycle; Filter cake makes dianthranide ketone-N through washing, drying, and N '-dihydro azine is Vat blue 4 (I).It is characterized in that at moisture N; Carry out condensation in N '-diformazan basic ring allylidene urea (IIIa) solvent, with atmospheric oxidation, with phase-transfer catalyst, under 95-180 ℃; Obtain high yield, high-quality Vat blue 4 (I) product; Reclaim simultaneously to concentrate and utilize solvent N, N '-diformazan basic ring allylidene urea (IIIa) again.Resulting Vat blue 4 (I) is refining with sodium hydroxide solution and vat powder, just can obtain the Vat blue 4 that is used to produce pigment blue 60 (I) of based on very high purity.
Among above-mentioned Vat blue 4 (I) preparation method, condensation temp is 95-180 ℃, and the condensation time is 3-16 hour, and best condensation temp is 100-125 ℃, and Best Times is 8-10 hour;
Among above-mentioned Vat blue 4 (I) preparation method, used main raw material 1-aminoanthraquinone (II) is red meal, and content is in the scope of 70-99%.
Among above-mentioned Vat blue 4 (I) preparation method, solvent N, N '-diformazan basic ring allylidene urea (IIIa) usage quantity (in 1-aminoanthraquinone (II) weight): be generally 0.4-6 part, the water cut of solvent is generally 1-25%;
Among above-mentioned Vat blue 4 (I) preparation method, used phase-transfer catalyst is that in quaternary ammonium salt, season phosphonium salt, the crown ether series phase-transfer catalyst one or more are composite, and consumption (in 1-aminoanthraquinone (II) weight) is generally 0.01%-1.5%;
Among above-mentioned Vat blue 4 (I) preparation method, material segregation water consumption (in 1-aminoanthraquinone (II) weight) after the condensation: be generally 0.5-10 part, the segregation temperature is 70-100 ℃;
Advantage of the present invention is: can the high-quality Vat blue 4 (I) of one-step synthesis, simplified synthesis procedure greatly, and can produce good economic benefit, product Vat blue 4 (I) yield is more than 97%; Can obtain being used to produce the highly purified Vat blue 4 (I) of pigment blue 60 with comparalive ease; Solvent N, N '-diformazan basic ring allylidene urea (IIIa) stable performance, the recovery are high; The mother liquor washing water can concentrate recycled after the closed loop, and three wastes generation is few, belong to environment-friendly clean process.
Embodiment
Below in conjunction with embodiment the present invention is further described, but be not limited to this.
Principal reaction according to the invention is:
Figure GSA00000077980000031
Used raw material in the enforcement unless otherwise indicated, is and is fit to the commercially available industrial goods that the dye well midbody uses;
Embodiment 1 adds 120g moisture content in the four-hole boiling flask of 500mL be 10% N, and N '-diformazan basic ring allylidene urea (IIIa), 0.1g catalyzer, 50g purity are 99.0% 1-aminoanthraquinone (II), stirs and be warmed up to 95 ℃; Drip 150mL 50% potassium hydroxide solution, the blowing air oxidation is carried out condensation reaction at 100-125 ℃; Insulation reaction adds 100mL water dilution segregation material after 8 hours, the material suction filtration is collected mother liquor; The filter cake hot wash is to neutral; Oven dry obtains Vat blue 4 (I) 49.2g, and yield 98.4% need not the further refining cotton that dyes and can obtain bright-coloured ruddiness blueness.
Embodiment 2 adds 120g moisture content in the four-hole boiling flask of 500mL be 15% N, and N '-diformazan basic ring allylidene urea (IIIa), 0.1g catalyzer, 50g purity are 99.0% 1-aminoanthraquinone (II), stirs and be warmed up to 95 ℃; Drip 150mL 50% potassium hydroxide solution, the blowing air oxidation is carried out condensation reaction at 100-125 ℃; Insulation reaction adds 100mL water dilution segregation material after 8 hours, the material suction filtration is collected mother liquor; The filter cake hot wash is to neutral; Oven dry obtains Vat blue 4 (I) 48.8g, and yield 97.6% need not the further refining cotton that dyes and can obtain bright-coloured ruddiness blueness.
Embodiment 3 adds 120g moisture content in the four-hole boiling flask of 500mL be 20% N, and N '-diformazan basic ring allylidene urea (IIIa), 0.1g catalyzer, 50g purity are 99.0% 1-aminoanthraquinone (II), stirs and be warmed up to 95 ℃; Drip the 150mL50% potassium hydroxide solution at 95-98 ℃, the blowing air oxidation is carried out condensation reaction at 100-125 ℃; Insulation reaction adds 100mL water dilution segregation material after 8 hours, the material suction filtration is collected mother liquor; The filter cake hot wash is to neutral; Oven dry obtains Vat blue 4 (I) 48.5g, and yield 97.0% need not the further refining cotton that dyes and can obtain bright-coloured ruddiness blueness.
Embodiment 4 adds the material making beating of 1500ml water and a collection of embodiment 3 in the four-hole boiling flask of 2000ml, add 47 gram dissolution of sodium hydroxide, adds 27 gram V-Brite Bs at 55 ℃; After stirring half a hour, suction filtration separation of material, filter cake are pulled an oar with 1000ml water again; Use the atmospheric oxidation material, the filtering and washing filter cake obtains highly purified Vat blue 4 (I) 46.1 grams to neutral 95-100 ℃ of oven dry; Total recovery 92.0% can be used for producing the raw material of pigment blue 60.

Claims (8)

1. the preparation method of a Vat blue 4 (I) dyestuff; Its concrete steps are: with 1-aminoanthraquinone (II) is raw material; Its structural formula is:
Figure FDA0000139821170000011
aqueous cyclic urea derivatives N; N '-diformazan basic ring allylidene urea (IIIa) is done medium; Its structural formula is:
Figure FDA0000139821170000012
is in the presence of highly basic Pottasium Hydroxide; With oxygen or air is that oxygenant carries out condensation reaction with phase-transfer catalyst; Make dianthranide ketone-N, N '-dihydro azine is Vat blue 4 (I), and its molecular structure is:
Figure FDA0000139821170000013
The Vat blue 4 of gained (I) is further in aqueous sodium hydroxide solution, with the refining highly purified Vat blue 4 (I) that once can obtain of vat powder.
2. by the preparation method of the said Vat blue 4 of claim 1 (I) dyestuff, it is characterized in that described condensation temp is 95-180 ℃, the condensation time is 3-16 hour.
3. by the preparation method of the said Vat blue 4 of claim 1 (I) dyestuff, it is characterized in that said condensation temp is 100-125 ℃, the time is 8-10 hour.
4. by the preparation method of the said Vat blue 4 of claim 1 (I) dyestuff, it is characterized in that described proportioning raw materials: N, N '-diformazan basic ring allylidene urea (IIIa) usage quantity by 1-aminoanthraquinone (II) weight, is 1-6 part.
5. by the preparation method of the said Vat blue 4 of claim 1 (I) dyestuff, it is characterized in that described moisture N, N '-diformazan basic ring allylidene urea (IIIa), its water cut is 1-25%.
6. by the preparation method of the said Vat blue 4 of claim 1 (I) dyestuff, it is characterized in that described Pottasium Hydroxide is potassium hydroxide aqueous solution, concentration of potassium hydroxide is 50%.
7. by the preparation method of the said Vat blue 4 of claim 1 (I) dyestuff, it is characterized in that the Pottasium Hydroxide usage quantity is 0.1-3 part by 1-aminoanthraquinone (II) weight in the described proportioning raw materials.
8. by the preparation method of the said Vat blue 4 of claim 1 (I) dyestuff, it is characterized in that described catalyzer be quaternary ammonium salt, season phosphonium salt, crown ether series phase-transfer catalyst, consumption is 0.01%-1.5% by 1-aminoanthraquinone (II) weight.
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CN104371347B (en) * 2014-11-29 2016-07-13 萧县凯奇化工科技有限公司 A kind of Vat Blue RSN preparation method
CN104497617B (en) * 2014-11-29 2016-08-24 萧县凯奇化工科技有限公司 A kind of reducing dye palm fibre GG and preparation method
CN105778553B (en) * 2016-04-08 2017-05-24 南通恒盛精细化工有限公司 Improvement method for preparing C.I.vat blue 4
CN106243770B (en) * 2016-07-26 2017-11-10 萧县凯奇化工科技有限公司 A kind of vat blue dyestuff and preparation method thereof
CN106221279B (en) * 2016-07-26 2017-08-29 安徽凯奇化工科技股份有限公司 A kind of polycyclic blue reducing dye and preparation method thereof

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GB1508067A (en) * 1974-06-21 1978-04-19 Ugine Kuhlmann Process for preparing indanthrene dyes
CN101205415A (en) * 2007-12-07 2008-06-25 徐州开达精细化工有限公司 Synthetic process of vat blue RSN

Patent Citations (2)

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GB1508067A (en) * 1974-06-21 1978-04-19 Ugine Kuhlmann Process for preparing indanthrene dyes
CN101205415A (en) * 2007-12-07 2008-06-25 徐州开达精细化工有限公司 Synthetic process of vat blue RSN

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