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A kind of high-efficiency water reducer modified by naphthalene-based sulfonic acid dye intermediate waste liquid

A dye intermediate and high-efficiency water-reducing agent technology, which is applied in water pollutants, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of low application degree, easy bleeding, high production cost, and achieve Good workability, reduced bleeding, and short reaction period

Active Publication Date: 2019-05-10
ANHUI XIN SOLID ENVIRONMENTAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing sulfamic acid-based high-efficiency water reducers on the market have high production costs, are prone to bleeding, and have low practical application levels.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A modified high-efficiency water reducer for naphthalene-based sulfonic acid dye intermediate waste liquid, which is composed of the following raw materials in parts by weight: 150 parts of crude sodium p-aminobenzenesulfonate, 90 parts of formaldehyde, and 300 parts of α-naphthol industrial waste liquid 25 parts of sodium sulfite, 80 parts of naphthalene-based sulfonic acid dye intermediate pretreatment waste liquid, 5 parts of pH regulator, and 100 parts of water.

[0023] Its preparation method comprises the following steps:

[0024] (1) Waste liquid pretreatment: After collecting the waste liquid, separate the organic phase and the water phase by extraction; retain the organic phase, and carry out back extraction with sodium hydroxide solution to obtain the pretreatment of the waste liquid of the naphthalene sulfonic acid dye intermediate liquid;

[0025] (2) Dissolving and filtering: add water to the reaction kettle, then add crude sodium p-aminobenzenesulfonate, ...

Embodiment 2

[0031] A modified high-efficiency water reducer for naphthalene-based sulfonic acid dye intermediate waste liquid, which is composed of the following raw materials in parts by weight: 120 parts of crude sodium p-aminobenzenesulfonate, 80 parts of formaldehyde, and 450 parts of α-naphthol industrial waste liquid 20 parts of sodium sulfite, 50 parts of naphthalene-based sulfonic acid dye intermediate pretreatment waste liquid, 30 parts of pH regulator, and 50 parts of water.

[0032] Its preparation method comprises the following steps:

[0033] (1) Waste liquid pretreatment: After collecting the waste liquid, separate the organic phase and the water phase by extraction; retain the organic phase, and carry out back extraction with sodium hydroxide solution to obtain the pretreatment of the waste liquid of the naphthalene sulfonic acid dye intermediate liquid;

[0034] (2) Dissolving and filtering: add water to the reaction kettle, then add crude sodium p-aminobenzenesulfonate, ...

Embodiment 3

[0040] A modified high-efficiency water reducer for naphthalene-based sulfonic acid dye intermediate waste liquid, which is composed of the following raw materials in parts by weight: 130 parts of crude sodium p-aminobenzenesulfonate, 90 parts of formaldehyde, and 400 parts of α-naphthol industrial waste liquid 30 parts of sodium sulfite, 60 parts of naphthalene-based sulfonic acid dye intermediate pretreatment waste liquid, 10 parts of pH regulator, and 150 parts of water.

[0041] Its preparation method comprises the following steps:

[0042] (1) Waste liquid pretreatment: After collecting the waste liquid, separate the organic phase and the water phase by extraction; retain the organic phase, and carry out back extraction with sodium hydroxide solution to obtain the pretreatment of the waste liquid of the naphthalene sulfonic acid dye intermediate liquid;

[0043] (2) Dissolving and filtering: add water to the reaction kettle, then add crude sodium p-aminobenzenesulfonate,...

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PUM

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Abstract

The invention relates to the technical field of water reducer production, in particular to a naphthalene sulfonic acid dye intermediate waste liquid modified superplasticizer. The superplasticizer is composed of the following raw materials by weight: 120-150 parts of crude sodium sulfanilate, 80-100 parts of formaldehyde, 300-450 parts of alpha-naphthol industrial waste liquid, 20-30 parts of sodium sulfite, 50-80 parts of naphthalene sulfonic acid dye intermediate pretreatment waste liquid, 5-30 parts of a PH regulator, and 50-150 parts of water. According to the invention, the naphthalene sulfonic acid dye intermediate waste liquid is utilized to prepare high value-added water reducer, waste materials are utilized, also the convenient and economical naphthalene sulfonic acid dye intermediate waste liquid modified superplasticizer can be obtained. Therefore, the naphthalene sulfonic acid dye intermediate waste liquid modified superplasticizer has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of water reducer production, in particular to a high-efficiency water reducer modified by naphthalene-based sulfonic acid dye intermediate waste liquid. Background technique [0002] The wastewater generated during the production of dye intermediates is very difficult to treat, especially the wastewater from the production of naphthalene dye intermediates. Naphthalene-based dye intermediates include naphthaleneamines, naphthols, naphthalenesulfonic acids, aminonaphthalenesulfonic acids, hydroxynaphthalenesulfonic acids, aminohydroxynaphthalenesulfonic acids and naphthalenecarboxylic acids. Naphthalene-based dye intermediates are Naphthalene as a raw material is a dye intermediate prepared through a series of organic synthesis unit processes (such as sulfonation, nitration, reduction, amination, hydrolysis, etc.). This type of intermediate has a naphthalene ring, which contains substituents such as amino, hy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G8/08C08G8/28C04B24/20C02F1/00
CPCC02F1/00C02F2101/308C04B24/20C04B2103/302C08G8/08C08G8/28
Inventor 刘景相马丽涛
Owner ANHUI XIN SOLID ENVIRONMENTAL CO LTD
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