CN105112019A - Synthetic industrial acidic wastewater vapor blocking agent and preparation method thereof - Google Patents

Abstract

The invention relates to a synthetic material combination technology, in particular to a synthetic industrial acidic wastewater vapor blocking agent and a preparation method thereof. The blocking agent is prepared from, by weight, 100 parts of long-chain alkyl naphthalene of which the carbon number is greater than or equal to eight and 4-10 parts of functional additives. The blocking agent is low in specific gravity, thereby being capable of floating on the acidic wastewater and blocking the water vapor; the blocking agent is high in flash point, thereby being small in saturated vapor pressure, low in volatility and small in evaporation loss. Meanwhile, the blocking agent is excellent in emulsion resistance and hydro-dissection capacity, prominent in oxidation stability and thermal stability, low in product aging speed and also excellent in mould prevention and has wide adaptability to the pH value of acidic water; besides, the blocking agent is low in toxicity, safe in operation and small in environmental influence. In addition, the blocking agent is easy and convenient to use and can be directly poured, there is no need to stop work or production, the subsequent working procedures and product quality will not be affected, and the blocking agent is also convenient to recover; moreover, the blocking agent can be generally used in the four seasons.

Description

The vapor barrier agent of synthesis type industrial acidic wastewater and method for making thereof

Technical field

The present invention relates to a kind of synthetic materials combination technique, be specifically related to a kind of synthesis type industrial acidic wastewater vapor barrier agent and method for making thereof.

Background technology

The blast furnace slag flushing of Iron And Steel Industry iron work, uses the trade effluent containing a large amount of various acid chemical that Steel Plant's internal recycling uses, mostly as coking chemical waste water etc.Because trade effluent temperature is higher, when colder season, it is steaming to drag for slag bath ambient steam, and cloud and mist curls up, and people are close a little, to feel eyes and throat sore, severe patient is endless cough even at once, has to flee from immediately.Thus, its production and Working environment are very severe, and when summer, this kind of situation is more severe.

Nearest 2 years, along with the environmental requirement of China is more and more higher, environmental protection legislation was also increasingly severe.Drag for the injury problem of slag bath acid vapors to environment, become Steel Plant and environmental administration headache but problem demanding prompt solution for it.

For the injury problem of this acid vapors to environment, total two schemes at present:

One) huge " metal cap ", namely dragging for structure one huge metal cap above slag bath, above establishing a motor machine " slide fastener ", acid vapors being isolated in cover.According to the information material recognized at present, the program there is no the case of practical application.The defect of the program or deficiency:

1, one-time investment is huge;

2, difficulty of construction is large.Because have a large amount of noxious vapors above pond, therefore construction environment is poor, difficulty of construction is large;

3, slag operation inconvenience is dragged for.Dragveyer is the operation of migration everywhere, and the huge machinery " slide fastener " of metal cap will along with the operation of dragveyer migration everywhere, operation very inconvenience;

4, the effect intercepting acid gas is undesirable.After " slide fastener " pulls open, a large amount of high-pressure high-concentration acid gas will escape in air;

5, security is a test;

6, maintenance cost is high.Sour gas is very serious to corrosion of metal, therefore, will carry out frequent and careful maintenance to this system.

Two) build a huge sieve in underground, allow water be separated by underground sieve with bits, water flows away along underpass, is not exposed in air.The defect of this technology:

1, project scale is large, involves many areas;

2, one-time investment is large.As transformed 1750 blast furnace systems, initial outlay estimates more than 12,000 ten thousand yuans;

3, execute man-hour requirement and close down blast furnace, cause stop work and production, large to the Influence of production of Steel Plant;

4, routine maintenance expense is large.

Summary of the invention

The object of the invention is to the deficiency that cannot meet environmental requirement solving the existence of above-mentioned prior art, there is provided a kind of and effectively block acid vapors fast, on dragging for slag operation, subsequent production technique, quality product, environment without the synthesis type industrial acidic wastewater vapor barrier agent of impact, and specifically provide the preparation method of this barrier agent.

The present invention is achieved by the following technical solutions:

The agent of synthesis type industrial acidic wastewater vapor barrier, special character is to be prepared from by the raw material of following weight:

The long chain alkyl naphthalene of carbon number >=8 100 parts, functional additive 4-10 part; Described long chain alkyl naphthalene is kinematic viscosity 150-300cSt long chain alkyl naphthalene at 40 DEG C.

At described synthesis type industrial acidic wastewater vapor barrier agent 40 DEG C, kinematic viscosity is 180-220cSt.Under this kinematic viscosity, the performance of product is more excellent.

Wherein, described long chain alkyl naphthalene is the concoction of single compound or more than one different motion viscosity long chain alkyl naphthalenes.

Preferably, described long chain alkyl naphthalene is the single compound of kinematic viscosity 180-220cSt long chain alkyl naphthalene at 40 DEG C.Adopt the performance of product during the single compound preparing product under this kinematic viscosity better.

Better, the weight part of described functional additive is 5-10 part.

Further, described functional additive is antioxidant additive, the hydrophobizing agent of 3.0-6.5 part, the ultraviolet radiation absorption agent of 0.15-0.45 part, the mould inhibitor of 0.008-0.02 part, the sterilant of 0.001-0.004 part, the non-emulsifying agent of 0.03-0.05 part of 0.8-3.0 part.

The method for making of synthesis type industrial acidic wastewater vapor barrier agent specifically comprises the following steps:

(1). be that the long chain alkyl naphthalene of 80%-95% pumps into normal pressure and is in harmonious proportion in still by total amount, be heated to 40-60 DEG C;

(2). the long chain alkyl naphthalene of remaining 5%-20% is heated to 80-90 DEG C;

(3). functional additive is added in above-mentioned steps (2) solution, stir and be made into mother liquor;

(4). be added to mother liquid obtained for step (3) in the mediation still of step (1), stir.

Described normal pressure mediation still is enamel still or carbon steel still.

This synthesis type industrial acidic wastewater vapor barrier agent, proportion is little, and floatability, on acid waste water, effectively intercepts water vapour; Flash-point is high, and thus its saturated vapor pressure is little, and volatility is low, and vaporization losses is less.Meanwhile, its emulsion resistance is separated very excellent capacity with water, and oxidation stability and heat-resistant quality are given prominence to, and aging of product speed is slow, and mould proof ability is also excellent, has adaptability widely to the pH value of sour water; Toxicity is low, operational safety, little to environmental influence.In addition, this barrier agent is easy to use, directly topples over, and without the need to stop work and production, does not also need system maintenance, can not affect subsequent handling and the quality product of production, reclaims and also facilitates, and can at all-season.

Embodiment

Below provide the specific embodiment of the present invention, be used for being further described the present invention.

Synthesis type industrial acidic wastewater vapor barrier agent technical indicator of the present invention is as shown in table 1:

Table 1, synthesis type industrial acidic wastewater vapor barrier agent technical indicator

Project	Technical target of the product
		ISO viscosity grade	220
Kinematic viscosity (40 DEG C), mm2/s	198～242
		Density, g/cm3, is not more than	0.90
Flash-point (opening), DEG C, be not less than	260
		Pour point, DEG C, not higher than	-30
Angelika Noack vaporization losses, wt%, is not more than	2.0
		Volatility (TGA, mark pressure, initial weightless temperature), DEG C, be not less than	300
Resistance to emulsion 54 DEG C (40-37-3), min., is not more than	30
		Thermo-antioxidant time (pdsc), min., is not less than	80

Embodiment 1

The alkylnaphthalene TM141 that raw material adopts Shanghai Ze Jun trade Co., Ltd to produce and alkylnaphthalene C4261, pumps into normal pressure by the long chain alkyl naphthalene C4261 of long chain alkyl naphthalene TM141 and 23.0kg of 37.0kg metering and is in harmonious proportion in still, be heated to 40-60 DEG C.

The long chain alkyl naphthalene C4261 of long chain alkyl naphthalene TM141 and 12.0kg of remaining 28.0kg is heated to 80-90 DEG C in small-sized heating installation, after by the hydrophobizing agent 52# paraffin of antioxidant additive carbamate 996E, 4.0kg of 1.0kg, the mould inhibitor 3Q-621OIT of 0.02kg, the sterilant heptyl paraben of 0.003kg, the ultraviolet radiation absorption agent 329 of 0.25kg, the non-emulsifying agent T1001 of 0.04kg measure and add successively in long chain alkyl naphthalene TM141 and long chain alkyl naphthalene C4261 mixed solution, stir and are made into mother liquor.

Above-mentioned obtained mother liquor is joined and is in harmonious proportion in still, stir, the synthesis type industrial acidic wastewater vapor barrier agent of the present embodiment can be obtained.

Embodiment 2

Raw material adopts the alkylnaphthalene AN23 of Nake Lubricating Technology Co., Ltd., Shanghai, the long chain alkyl naphthalene AN23 of 60.0kg metering is pumped into normal pressure and is in harmonious proportion in still, be heated to 40-60 DEG C.

The long chain alkyl naphthalene AN23 of remaining 40.0kg is heated to 80-90 DEG C, after by the hydrophobizing agent 52# paraffin of antioxidant additive carbamate 996E, 4.0kg of 1.0kg, the mould inhibitor 3Q-621OIT of 0.02kg, the sterilant heptyl paraben of 0.003kg, the ultraviolet radiation absorption agent 329 of 0.25kg, the non-emulsifying agent T1001 of 0.04kg measure and add successively in long chain alkyl naphthalene AN23 solution, stir and are made into mother liquor.

Above-mentioned obtained mother liquor is joined in still, stirs, the synthesis type industrial acidic wastewater vapor barrier agent of the present embodiment can be obtained.

The concoction of employing long chain alkyl naphthalene TM141 and alkylnaphthalene C4261 or alkylnaphthalene AN23 single compound are as raw material, antioxidant additive T501 or carbamate 996E or di-iso-octyldiphenylamine are as antioxidant additive, 52# paraffin is as hydrophobizing agent, heptyl paraben is as sterilant, non-emulsifying agent T1001 is as non-emulsifying agent, mould inhibitor 3Q-621OIT is as mould inhibitor, and ultraviolet radiation absorption agent 328,329 is as ultraviolet radiation absorption agent, and its charge ratio is as shown in table 2:

The charge ratio of table 2, the agent of synthesis type industrial acidic wastewater vapor barrier

The synthesis type industrial acidic wastewater vapor barrier agent technical feature data that above group charge ratio is produced are as shown in table 3:

The salient features data of table 3, embodiment product

From table 3 data, group 2 and 5, namely the material choice of embodiment 1 and 2 and charge ratio better, its synthesis type industrial acidic wastewater vapor barrier agent product prepared obviously is better than other group in overall performance data, and the product performance namely prepared are more excellent compared with other group.

The functional additive kind that synthesis type industrial acidic wastewater vapor barrier of the present invention agent is selected in preparation process is industry universal and selects, but when following kind is selected, product processability is more excellent.Antioxidant additive is Hinered phenols antioxidant, as T501 or alkyl benzene amine kind antioxidant, during as di-iso-octyldiphenylamine, or ester class, as carbamate.The product performance that carbamate is prepared are better, and the product performance prepared are better; Hydrophobizing agent should select that oil soluble is good, hydrophobic nature is strong, as 52# whiteruss; When sterilant is wide-spectrum bactericide, bactericidal property is better, as Tegosept E monooctyl ester; N-octyl group-4-isothiazoline-3-ketone selected by mould inhibitor, and during the rivers and mountains 3Q-621OIT produced as large incessanly latitude Chemical Co., Ltd., the anti-mold effect of mould inhibitor is good and performance is long-acting; Benzotriazole category ultraviolet radiation absorption agent selected by ultraviolet radiation absorption agent, as grace rubber and plastic novel material company limited of Weihai China produce ultraviolet absorbers 328,329 time, the effect of ultraviolet radiation absorption agent is stronger; When non-emulsifying agent is the DL-32 of T1001 or the production of Yong Da Chemical Co., Ltd. of Jiangyin City, good product performance can be reached.

In sum, above embodiment is not exhaustive, and its protection domain is not limited to given embodiment.Every all technical schemes achieved by thinking of the present invention, all belong to protection scope of the present invention.

Claims (8)

1. synthesis type industrial acidic wastewater vapor barrier agent, is characterized in that being prepared from by the raw material of following weight:

The long chain alkyl naphthalene of carbon number >=8 100 parts, functional additive 4-10 part; Described long chain alkyl naphthalene is kinematic viscosity 150-300cSt long chain alkyl naphthalene at 40 DEG C.

2. synthesis type industrial acidic wastewater vapor barrier agent as claimed in claim 1, is characterized in that kinematic viscosity is 180-220cSt at described synthesis type industrial acidic wastewater vapor barrier agent 40 DEG C.

3. synthesis type industrial acidic wastewater vapor barrier agent as claimed in claim 1 or 2, is characterized in that described long chain alkyl naphthalene is the concoction of single compound or more than one different motion viscosity long chain alkyl naphthalenes.

4. synthesis type industrial acidic wastewater vapor barrier agent as claimed in claim 3, is characterized in that described long chain alkyl naphthalene is the single compound of kinematic viscosity 180-220cSt long chain alkyl naphthalene at 40 DEG C.

5. synthesis type industrial acidic wastewater vapor barrier agent as claimed in claim 1, is characterized in that the weight part of described functional additive is 5-10 part.

6. synthesis type industrial acidic wastewater vapor barrier agent as claimed in claim 5, is characterized in that described functional additive is antioxidant additive, the hydrophobizing agent of 3.0-6.5 part, the ultraviolet radiation absorption agent of 0.15-0.45 part, the mould inhibitor of 0.008-0.02 part, the sterilant of 0.001-0.004 part, the non-emulsifying agent of 0.03-0.05 part of 0.8-3.0 part.

7. the preparation method of synthesis type industrial acidic wastewater vapor barrier agent as claimed in claim 1, is characterized in that specifically comprising the following steps:

(1). be that the long chain alkyl naphthalene of 80%-95% pumps into normal pressure and is in harmonious proportion in still by total amount, be heated to 40-60 DEG C;

(2). the long chain alkyl naphthalene of remaining 5%-20% is heated to 80-90 DEG C;

(3). functional additive is added in above-mentioned steps (2) solution, stir and be made into mother liquor;

(4). be added to mother liquid obtained for step (3) in the mediation still of step (1), stir.

8. the preparation method of synthesis type industrial acidic wastewater vapor barrier agent as claimed in claim 7, is characterized in that described normal pressure mediation still is enamel still or carbon steel still.