Unlock instant, AI-driven research and patent intelligence for your innovation.

Method of removing trimethylbenzene from workshop waste water of alkyd resin

An alkyd resin, trimethylbenzene technology, applied in chemical instruments and methods, water pollutants, natural water treatment and other directions, can solve the problems of microbial inactivation, poor treatment capacity, high equipment cost, and achieve strong complexing ability and speed. Fast, low-volume effects

Inactive Publication Date: 2015-11-18
WENZHOU HONGCHENGXIANG TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biochemical treatment takes a relatively long time, and the high content of trimethylbenzene will lead to the inactivation of microorganisms
The gas stripping method and adsorption method are commonly used in the physical method, and the gas stripping method is suitable for a production line with a certain production scale, and the equipment cost is relatively high; the adsorption method is mainly used for the treatment of low-concentration trimethylbenzene wastewater, and the most commonly used adsorbent is activated carbon. or zeolites, less capable

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A method for removing 1,3,5-trimethylbenzene, 1,2,3-trimethylbenzene and 1,2,4-trimethylbenzene in alkyd resin workshop wastewater:

[0061] Step 1: Add the following mass fraction substances to the wastewater:

[0062] (3α,4β)-3-Hydroxyolean-12-en-23-acid 13 parts,

[0063] 16 parts of polymaleic acid,

[0064] 0.9 parts of 1-(1,1-dimethylethyl)-3,4,5-trimethoxy-2,6-dinitrobenzene,

[0065] (25R)-5α-spirosta(alkane)-3β-ol 9 parts,

[0066] 5 parts of methyl-2-hydroxybenzoate,

[0067] After stirring for 10-20 minutes, let it stand for 15-30 minutes, and then filter to obtain the supernatant;

[0068] Step 2: Add the following mass fraction substances to the supernatant obtained in Step 1:

[0069] Cork triterpene ketone 17 parts,

[0070] 14 parts of sodium pentahydroxycaproate,

[0071] 0.7 parts of cyclohexyl methylene diphenol diacetate,

[0072] 9 parts of 4-(3-methylbut-2-enyloxy)furo[3,2-g]benzopyran-7-one,

[0073] 3 parts of betaine,

[0074] 12 parts o...

Embodiment 2

[0084] A method for removing 1,3,5-trimethylbenzene, 1,2,3-trimethylbenzene and 1,2,4-trimethylbenzene in alkyd resin workshop wastewater:

[0085] Step 1: Add the following mass fraction substances to the wastewater:

[0086] (3α,4β)-3-Hydroxyolean-12-en-23-acid 16 parts,

[0087] 19 parts of polymaleic acid,

[0088] 1.1 parts of 1-(1,1-dimethylethyl)-3,4,5-trimethoxy-2,6-dinitrobenzene,

[0089] (25R)-5α-spirosta(alkane)-3β-ol 11 parts,

[0090] 7 parts of methyl-2-hydroxybenzoate,

[0091] After stirring for 10-20 minutes, let it stand for 15-30 minutes, and then filter to obtain the supernatant;

[0092] Step 2: Add the following mass fraction substances to the supernatant obtained in Step 1:

[0093] Cork triterpene ketone 19 parts,

[0094] 16 parts of sodium pentahydroxycaproate,

[0095] 0.9 parts of cyclohexylmethylene diphenol diacetate,

[0096] 12 parts of 4-(3-methylbut-2-enyloxy)furo[3,2-g]benzopyran-7-one,

[0097] 4 parts of betaine,

[0098] 14 part...

Embodiment 3

[0108] A method for removing 1,3,5-trimethylbenzene, 1,2,3-trimethylbenzene and 1,2,4-trimethylbenzene in alkyd resin workshop wastewater:

[0109] Step 1: Add the following mass fraction substances to the wastewater:

[0110] (3α,4β)-3-Hydroxyolean-12-en-23-acid 15 parts,

[0111] 18 parts of polymaleic acid,

[0112] 1.0 parts of 1-(1,1-dimethylethyl)-3,4,5-trimethoxy-2,6-dinitrobenzene,

[0113] (25R)-5α-spirosta(alkane)-3β-ol 10 parts,

[0114] 6 parts of methyl-2-hydroxybenzoate,

[0115] After stirring for 10-20 minutes, let it stand for 15-30 minutes, and then filter to obtain the supernatant;

[0116] Step 2: Add the following mass fraction substances to the supernatant obtained in Step 1:

[0117] Cork triterpene ketone 18 parts,

[0118] Sodium pentahydroxycaproate 15 parts,

[0119] 0.8 part of cyclohexyl methylene diphenol diacetate,

[0120] 11 parts of 4-(3-methylbut-2-enyloxy)furo[3,2-g]benzopyran-7-one,

[0121] 3 parts of betaine,

[0122] 13 parts o...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method of removing 1,3,5-trimethylbenzene, 1,2,3-trimethylbenzene and 1,2,4-trimethylbenzene from the workshop waste water of alkyd resin, and the method is realized by adding the following substances in sequence: (3alpha,4beta)-3-hydroxyolean-12-alkene-23-acid, (Z)-2-Butenedioic acid homopolymer, 1-(1,1-dimethylethyl)-3,4,5-trimethoxy-2,6-dinitrobenzene, (25R)-5alpha-spirostane-3beta-alcohol, methyl-2-hydroxybenzoic acid ester, 4-acetoxyl group-3-methoxy group-(2-propenyl)benzene, (cyclohexylidenemethanediyl)dibenzene-4,1-diyl diacetate, 4-(3-methylbut-2-enoxy)furo[3,2-g]chromen-7-one, glycine betaine and the like. The complexing ability of the method with a target substance is good; the precipitation speed of a formed complex is fast; the removal rate can reach 99.9 percent; the usage is less; and a water body cannot be harmed.

Description

technical field [0001] The invention relates to a method for removing 1,3,5-trimethylbenzene, 1,2,3-trimethylbenzene and 1,2,4-trimethylbenzene in the wastewater of an alkyd resin workshop, and belongs to the technical field of environmental protection. Background technique [0002] Alkyd resin synthesis is mainly produced by solvent method. In the solvent method, the evaporation of xylene or trimethylbenzene usually brings out the esterification water, which is separated from the oil and water by the water separator and then flows back into the reaction kettle. This is repeated to promote the polyesterification reaction and generate alkyd resin. Therefore, the wastewater from the alkyd resin workshop is mixed with a large amount of benzene solvents, mainly xylene or trimethylbenzene. Trimethylbenzene in the water can float on the water surface, or be distributed on the water surface in the form of oil, which can cause the death of fish and aquatic organisms. Therefore, th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F1/52C02F1/54C02F101/32C02F103/38
Inventor 叶澄
Owner WENZHOU HONGCHENGXIANG TECH