CN104493078A - Casting coating prepared from semi-coke wastewater and preparation method of casting coating - Google Patents
Casting coating prepared from semi-coke wastewater and preparation method of casting coating Download PDFInfo
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- CN104493078A CN104493078A CN201410847409.7A CN201410847409A CN104493078A CN 104493078 A CN104493078 A CN 104493078A CN 201410847409 A CN201410847409 A CN 201410847409A CN 104493078 A CN104493078 A CN 104493078A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
Abstract
The invention relates to a casting coating prepared from semi-coke wastewater and a preparation method of the casting coating. The casting coating comprises the following components: the semi-coke wastewater, industrial formaldehyde, polyvinyl alcohol, calcium bentonite, quartz powder, white emulsion, sodium carboxymethylcellulose and a de-foaming agent. Heat carried by the wastewater is used as a heat source and the semi-coke wastewater is directly prepared to the casting coating; and an external heat source is not required so that economical efficiency and environmental protection are realized. The prepared casting coating has the characteristics of strong chemical stability, good suspension, high strength, good leveling property and the like; and after the coating is dried, a surface coated with the coating is smooth and clean and has no foam, so that the coating can be widely applied to a coating casting industry.
Description
Technical field
The present invention relates to a kind of cast paint utilizing blue charcoal waste water to prepare and preparation method thereof.
Background technology
Blue charcoal waste water is the waste water that coal produces in the processes such as middle low temperature distillation (about 650 DEG C) processing blue charcoal, coal tar and coke-stove gas, its complicated component, except containing a large amount of phenols organic contamination beyond the region of objective existences, also containing the poisonous and harmful substance such as cyanide and ammonia nitrogen.The content of the COD of blue charcoal waste water, ammonia nitrogen and aldehydes matter is high, its COD value 30000 ~ 50000mg/L, aldehydes matter > 3000 mg/L, NH
3-N > 2000 mg/L, belongs to high-concentration organic sewage difficult to degrade.
The processing method of current blue charcoal waste water has absorption method, activated sludge process, burning method, oxidizing process, biochemical process, ammonia still process dephenolize-srb assay etc.Wherein absorption method cost is high, and absorption regeneration difficulty, is unsuitable for high concentration wastewater treatment; Activated sludge process, burning method and oxidative treatment cost is high, scale of investment is large; The chemical agent dephenolize of ammonia still process dephenolize-srb assay, easily produces secondary pollution.Therefore, seek a kind of low cost, efficient and can the method for the blue charcoal waste water of recycling to development energy-conserving and environment-protective pattern, to carry out cleaner production energetically significant.
Summary of the invention
The object of this invention is to provide and a kind ofly utilize blue charcoal waste water method preparing cast paint and products thereof, the blue charcoal waste water complete resource produced is utilized, does not produce secondary pollution.
Technical scheme of the present invention is as follows:
A kind of cast paint utilizing blue charcoal waste water to prepare, it is prepared by the raw material components of following weight portion, blue charcoal waste water 80 ~ 100, formaldehyde 2 ~ 4, polyvinyl alcohol 8 ~ 12, bentonite 3 ~ 5, silica flour 80 ~ 85, white glue with vinyl 1.5 ~ 3, sodium carboxymethylcellulose 0.5 ~ 2, defoamer 0.02 ~ 0.05.
Described defoamer is selected from n-butanol, n-octyl alcohol, n-amyl alcohol, polymethyl siloxane emulsion.
The preparation method of above-mentioned cast paint, comprises the following steps:
(1) blue charcoal waste water and formaldehyde are dropped in reactor, 80 ~ 100 DEG C of reactions 2 ~ 4 hours;
(2) add polyvinyl alcohol again, insulation is dissolved;
(3) material drops in homogenizer after terminating by reaction, then adds the stirring of bentonite, silica flour, white glue with vinyl, sodium carboxymethylcellulose and defoamer;
(4) discharging is ground with colloid mill, packaging.
Add 1 ~ 2.5 parts by weight of urea in above-mentioned steps (2) and carry out amination process.
The mixing time of above-mentioned steps (3) is 2 ~ 6 hours.
The milling time of above-mentioned steps (4) is 1 ~ 2 hour.
A preparation method for cast paint, comprises the following steps:
(1) the blue charcoal waste water of 100 weight portions and 3 parts by weight of formaldehyde are dropped in reactor, stir, 90 DEG C of insulation reaction 3 hours;
(2) 10 weight account polyethylene alcohol are added again, 2.5 parts by weight of urea, insulation reaction 1 hour;
(3) material drops in homogenizer after terminating by reaction, then adds 3 weight portion calcium bentonites, 85 weight portion silica flours, 1.5 weight portion white glue with vinyl, 1 weight portion sodium carboxymethylcellulose, 0.02 weight portion polymethyl siloxane emulsion, stirs 5 hours;
(4) discharging after 1 hour is ground with colloid mill, packaging.
Add 1 ~ 2.5 parts by weight of urea in above-mentioned steps (2) and carry out amination process.
Beneficial effect of the present invention:
(1) blue charcoal waste water is directly utilized by the present invention completely, wastewater treatment is become cast paint, avoids discharge of wastewater pollution on the environment;
(2) cast paint that prepared by the present invention has the features such as chemical stability is strong, suspension good, intensity is high, coating uniform, good leveling property, and it is bright and clean, still that coating dries rear surface;
(3) method of operating of the present invention is easy, cost is low;
(4) the present invention is without the need to additionally providing thermal source, and the heat entrained by blue charcoal waste water is enough to supporting reactions to carry out;
(5) recycling Phenol for Waste Water type organic of the present invention and ammonia nitrogen compounds, really achieve and turn waste into wealth, for bringing certain economic benefit while business processes waste water.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
(1) blue for 100 weight portions charcoal waste water and 3 parts by weight of formaldehyde are dropped in reactor, stir, with the heat entrained by blue charcoal waste water for thermal source, insulation reaction 3 hours;
(2) 10 weight account polyethylene alcohol are added again, insulation reaction 1 hour;
(3) material drops in homogenizer after terminating by reaction, adds 3 weight portion calcium bentonites, 85 weight portion silica flours, 1.5 weight portion white glue with vinyl, 1 weight portion sodium carboxymethylcellulose, 0.02 weight portion polymethyl siloxane emulsion, stirs 5 hours;
(4) grind a discharging after 1 hour with colloid mill, packaging, namely obtains water base cast paint.
Quality measurements:
Embodiment 2
(1) blue for 90 weight portions charcoal waste water and 3 parts by weight of formaldehyde are dropped in reactor, stir, with the heat entrained by blue charcoal waste water for thermal source, insulation reaction 2 hours;
(2) 8 weight account polyethylene alcohol, 1 parts by weight of urea is added again, insulation reaction 1 hour;
(3) material to drop in homogenizer after terminating and stirs by reaction, adds 3 weight portion lithium bentonites, 85 weight portion silica flours, 2 weight portion white glue with vinyl, 1 weight portion sodium carboxymethylcellulose, 0.02 weight portion n-amyl alcohol, stirs 6 hours;
(4) grind a discharging in 1.5 hours with colloid mill, packaging, namely obtains water base cast paint.
Quality measurements:
Embodiment 3
(1) blue for 100 weight portions charcoal waste water and 2 parts by weight of formaldehyde are dropped in reactor, stir, with the heat entrained by blue charcoal waste water for thermal source, insulation reaction 2 hours;
(2) 10 weight account polyethylene alcohol are added again, insulation reaction 1 hour;
(3) material to drop in homogenizer after terminating and stirs by reaction, adds 4 weight portion sodium bentonites, 80 weight portion silica flours, 1.5 weight portion white glue with vinyl, 1 weight portion sodium carboxymethylcellulose, 0.03 weight portion n-octyl alcohol, stirs 2 hours;
(4) grind a discharging after 2 hours with colloid mill, packaging, namely obtains water base cast paint.
Quality measurements:
Embodiment 4
(1) the blue charcoal waste water of 100 weight portions and 3 parts by weight of formaldehyde are dropped in reactor, stir, with the heat entrained by blue charcoal waste water for thermal source, 90 degree of insulation reaction 3 hours;
(2) 10 weight account polyethylene alcohol, 2.5 parts by weight of urea are added again, insulation reaction 1 hour;
(3) material to drop in homogenizer after terminating and stirs by reaction, adds 3 weight portion calcium bentonites, 85 weight portion silica flours, 1.5 weight portion white glue with vinyl, 1 weight portion sodium carboxymethylcellulose, 0.05 part by weight of n-butanol, stirs 2 hours;
(4) grind a discharging after 1 hour with colloid mill, packaging, namely obtains water base cast paint.
Quality measurements:
Embodiment 5
Find after the cast paint obtain above-described embodiment 1 ~ 4 and commercially available light water base casting coatings carry out contrast test, cast paint chemical stability prepared by the present invention is good, and suspension, intensity, coating uniformity are similar with common cast paint or effect is equal to, the rear cast(ing) surface of coating oven dry is bright and clean, flawless.
Claims (7)
1. the cast paint utilizing blue charcoal waste water to prepare, it is characterized in that being prepared by the raw material components of following weight portion, blue charcoal waste water 80 ~ 100, formaldehyde 2 ~ 4, polyvinyl alcohol 8 ~ 12, bentonite 3 ~ 5, silica flour 80 ~ 85, white glue with vinyl 1.5 ~ 3, sodium carboxymethylcellulose 0.5 ~ 2, defoamer 0.02 ~ 0.05.
2. cast paint according to claim 1, is characterized in that: described defoamer is selected from n-butanol, n-octyl alcohol, n-amyl alcohol, polymethyl siloxane emulsion.
3. the preparation method of cast paint according to claim 1, is characterized in that comprising the following steps:
(1) blue charcoal waste water and formaldehyde are dropped in reactor, 80 ~ 100 DEG C of reactions 2 ~ 4 hours;
(2) add polyvinyl alcohol again, insulation is dissolved;
(3) material drops in homogenizer after terminating by reaction, then adds the stirring of bentonite, silica flour, white glue with vinyl, sodium carboxymethylcellulose and defoamer;
(4) discharging is ground with colloid mill, packaging.
4. preparation method according to claim 3, is characterized in that: the mixing time of step (3) is 2 ~ 6 hours.
5. preparation method according to claim 3, is characterized in that: the milling time of step (4) is 1 ~ 2 hour.
6. preparation method according to claim 3, is characterized in that, comprises the following steps:
(1) the blue charcoal waste water of 100 weight portions and 3 weight portion industrial formols are dropped in reactor, stir, 90 DEG C of insulation reaction 3 hours;
(2) 10 weight account polyethylene alcohol are added again, 2.5 parts by weight of urea, insulation reaction 1 hour;
(3) material drops in homogenizer after terminating by reaction, then adds 3 weight portion calcium bentonites, 85 weight portion silica flours, 1.5 weight portion white glue with vinyl, 1 weight portion sodium carboxymethylcellulose, 0.02 weight portion polymethyl siloxane emulsion, stirs 5 hours;
(4) discharging after 1 hour is ground with colloid mill, packaging.
7. the preparation method according to claim 3 or 6, is characterized in that: add 1 ~ 2.5 parts by weight of urea in step (2) and carry out amination process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410847409.7A CN104493078B (en) | 2014-12-31 | 2014-12-31 | A kind of cast paint utilizing semi-coke wastewater to prepare and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410847409.7A CN104493078B (en) | 2014-12-31 | 2014-12-31 | A kind of cast paint utilizing semi-coke wastewater to prepare and preparation method thereof |
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| Publication Number | Publication Date |
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| CN104493078A true CN104493078A (en) | 2015-04-08 |
| CN104493078B CN104493078B (en) | 2016-08-31 |
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| CN201410847409.7A Expired - Fee Related CN104493078B (en) | 2014-12-31 | 2014-12-31 | A kind of cast paint utilizing semi-coke wastewater to prepare and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105013809A (en) * | 2015-06-03 | 2015-11-04 | 西安博纳材料科技有限公司 | Application of carbon aerogel to heavy metal contaminated soil restoration |
| CN110125327A (en) * | 2019-05-14 | 2019-08-16 | 唐山丞起汽车零部件有限公司海港分公司 | A kind of coating and its preparation and application substituting furan resin self curing sand |
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| CN1048876A (en) * | 1990-05-07 | 1991-01-30 | 吴惠生 | A kind of industrial phenolic wastewater comprehensive utilization method |
| CN1476361A (en) * | 2000-11-24 | 2004-02-18 | 花王株式会社 | Sublimation pattern casting method |
| CN101569918A (en) * | 2009-06-10 | 2009-11-04 | 刘则斌 | Coating for lost foam cast iron |
| CN101906196A (en) * | 2010-07-14 | 2010-12-08 | 河北龙港工贸有限公司 | Comprehensive utilization method of phenolic resin wastewater |
| CN102407275A (en) * | 2011-04-25 | 2012-04-11 | 湖北工业大学 | Expendable pattern casting (EPC) molding shell paint for casting steel and preparation method thereof |
| CN103056289A (en) * | 2013-01-25 | 2013-04-24 | 马鞍山市华达冶金机械有限公司 | Casting paint for high-chromium cast iron and preparation method thereof |
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2014
- 2014-12-31 CN CN201410847409.7A patent/CN104493078B/en not_active Expired - Fee Related
Patent Citations (6)
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|---|---|---|---|---|
| CN1048876A (en) * | 1990-05-07 | 1991-01-30 | 吴惠生 | A kind of industrial phenolic wastewater comprehensive utilization method |
| CN1476361A (en) * | 2000-11-24 | 2004-02-18 | 花王株式会社 | Sublimation pattern casting method |
| CN101569918A (en) * | 2009-06-10 | 2009-11-04 | 刘则斌 | Coating for lost foam cast iron |
| CN101906196A (en) * | 2010-07-14 | 2010-12-08 | 河北龙港工贸有限公司 | Comprehensive utilization method of phenolic resin wastewater |
| CN102407275A (en) * | 2011-04-25 | 2012-04-11 | 湖北工业大学 | Expendable pattern casting (EPC) molding shell paint for casting steel and preparation method thereof |
| CN103056289A (en) * | 2013-01-25 | 2013-04-24 | 马鞍山市华达冶金机械有限公司 | Casting paint for high-chromium cast iron and preparation method thereof |
Non-Patent Citations (1)
| Title |
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| 不详: "工业"三废"处理及资源化利用", 《HTTP://HXYHGXY.YULINU.EDU.CN/ZDSYS/SHOW.JSP?URLTYPE=NEWS.NEWSCONTENTURL&WBTREEID=1059&WBNEWSID=1315》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105013809A (en) * | 2015-06-03 | 2015-11-04 | 西安博纳材料科技有限公司 | Application of carbon aerogel to heavy metal contaminated soil restoration |
| CN110125327A (en) * | 2019-05-14 | 2019-08-16 | 唐山丞起汽车零部件有限公司海港分公司 | A kind of coating and its preparation and application substituting furan resin self curing sand |
| CN110125327B (en) * | 2019-05-14 | 2021-03-09 | 唐山丞起汽车零部件有限公司海港分公司 | Paint replacing furan resin self-hardening sand and preparation and use methods thereof |
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| CN104493078B (en) | 2016-08-31 |
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