CN108017202A - A kind for the treatment of for reuse technique of copper drawing fluid waste liquid - Google Patents
A kind for the treatment of for reuse technique of copper drawing fluid waste liquid Download PDFInfo
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- CN108017202A CN108017202A CN201711312869.XA CN201711312869A CN108017202A CN 108017202 A CN108017202 A CN 108017202A CN 201711312869 A CN201711312869 A CN 201711312869A CN 108017202 A CN108017202 A CN 108017202A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
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Abstract
Present invention relates particularly to a kind for the treatment of for reuse technique of copper drawing fluid waste liquid, the technical process are specific as follows：Demulsification：Copper drawing fluid waste liquid is taken, under agitation, adds acid solution, it is 1~4 to be adjusted to pH value, stirs to wire drawing liquid waste liquid from blue lacteous and is changed into milky dirty solution, up to the liquid that is demulsified；Water-oil separating：Demulsification liquid is transferred to oil water separator separation oil phase and water phase；Oil removing：In water phase is separated, the heavy agent of wadding is added, to remove remaining organic matter, obtains clear liquid；Copper removal：Clear liquid is electrolysed under 1~10A, observation water faded to from blueness it is colourless or faint yellow, electrolysis terminate, obtain processing water, obtain elemental copper in cathode；Adjustment：PH adjusting agent is added in water is handled so that processing water pH value is 8；Grease merges：Separation oil phase is mixed with the processing water in step 5, adds emulsifying agent, the copper drawing fluid being uniformly mixing to obtain.The technique has the advantages that recyclable elemental copper, zero-emission, process operability are strong.
Description
Technical field
The invention belongs to industrial wastes processing technology field, and in particular to a kind for the treatment of for reuse work of copper drawing fluid waste liquid
Skill.
Background technology
Wire drawing oil is used in during wire drawing, drawing process, has lubrication, cleaning, cooling, antirust and other effects.
Copper wire wire drawing oil is this one of branch of major class commercial auxiliaries, since drawing process mould road number is more, wire drawing liquid temperature
Degree is higher, although wire drawing oil has antirust and other effects, since wire drawing liquid service life is generally at 8~10 months, copper still can
By oxidation corrosion, cause wire drawing liquid hydraulic performance decline to use, finally abandon, and then pollution is brought to environment.
The Chinese patent on copper drawing fluid liquid waste processing reuse technology is retrieved, finds no report.
The content of the invention
In order to solve the problems, such as that existing wire drawing oil existing in the prior art is unrenewable, the present invention provides a kind of drawing of copper
The treatment for reuse technique of silk liquid waste liquid, the technique have the advantages that recyclable elemental copper, zero-emission, process operability are strong.This
Technical problems to be solved by the inivention are achieved through the following technical solutions：
A kind for the treatment of for reuse technique of copper drawing fluid waste liquid, is made of six steps, is respectively：Demulsification, water-oil separating, oil removing,
Copper removal, adjustment, grease merge.
Further, the treatment for reuse technical process is specific as follows：
Step 1：Demulsification：Copper drawing fluid waste liquid is taken, under agitation, adds acid solution, it is 1~4 to be adjusted to pH value, stirring
It is changed into milky dirty solution to wire drawing liquid waste liquid from blue lacteous, up to the liquid that is demulsified；
Step 2：Water-oil separating：The demulsification liquid of step 1 is transferred to oil water separator, then separates oil phase and water phase,
Obtain separation water phase and separate oil phase；
Step 3：Oil removing：In the separation water phase of step 2, the heavy agent of wadding is added, to remove remaining organic matter, is obtained clear
Liquid；
Step 4：Copper removal：The clear liquid that step 3 obtains is electrolysed under 1~10A, observation water fades to colourless or light from blueness
Yellow, electrolysis terminate, and obtain processing water, elemental copper is obtained in cathode；
Step 5：Adjustment：PH adjusting agent is added in the processing water of step 4 so that processing water pH value is 7.5~9；
Step 6：Grease merges：Separation oil phase in step 2 is mixed with the processing water in step 5, adds emulsification
Agent, the copper drawing fluid being uniformly mixing to obtain.
Further, acid solution is hydrochloric acid or sulfuric acid in step 1.
Further, mixing speed is 30~60RPM in step 1, and mixing time is 5~40min.
Further, the temperature of oil water separator is 50~105 DEG C in step 2, and soaking time is 2~10h.
Further, heavy agent of wadding a quilt with cotton in step 3 is aluminium polychloride, polyaluminum ferric chloride, bodied ferric sulfate, polyacrylamide
It is one or more in amine, cationic polyacrylamide, calcium hydroxide and sodium hydroxide.
Further, in step 4 electrolytic anode be non-dissolving graphite electrode.
Further, pH adjusting agent is any one in sodium hydroxide, calcium hydroxide or triethanolamine in step 5.
Further, the mixing ratio of oil phase is 3~5% in step 6.
Further, in step 6 emulsifying agent for polyoxethylene octylphenyl phenol ether -10, JFC, sorbitan mono-oleic acid ester,
It is one or more in polysorbate.
Compared with prior art, beneficial effects of the present invention：
1. the treatment for reuse technique of the copper drawing fluid waste liquid of the present invention can recycle elemental copper, and whole technical process zero-emission
Put, pollution will not be produced, and process operability is strong；
2. the copper drawing fluid that the treatment for reuse technique of the present invention obtains is similar or close to the performance of first timing wire drawing liquid.
Embodiment
Further detailed description is done to the present invention with reference to specific embodiment, but embodiments of the present invention are not limited to
This.
Embodiment one
The treatment for reuse technique of the copper drawing fluid waste liquid of the present embodiment, includes step following six：
(1) it is demulsified.1 liter of wire drawing liquid waste liquid is taken, under 30PRM stirring conditions, adds 5ml hydrochloric acid, pH value is 1~4, is continued
Mixing time is 40min.
(2) water-oil separating.Above-mentioned demulsification liquid is transferred in oil water separator, under the conditions of 80 DEG C, keeps the temperature 5h.Then carry out
Separate oil phase and water phase.
(3) oil removing.Above-mentioned separation water phase is taken, under constant agitation, adds calcium hydroxide 9g, 5% aluminium polychloride
It is 20min that 1ml, 1 ‰ cationic polyacrylamide 0.3ml, which continue mixing time, and 350~400 mesh filter-cloth filterings obtain clear liquid.
(4) copper removal.The clear liquid that upper step obtains, adds direct current, is electrolysed under 3A current conditions, clear liquid from blue bleach or
It is faint yellow, it is terminal, electrolysis terminates.The elemental copper of powder state is attached in cathode, is separated and recovered from.Anode graphite electrode is cloudy
Pole brass electrode.
(5) adjust.The clear liquid obtained after above-mentioned copper removal, it is 7.5~9 to add 10% sodium hydroxide and adjust pH.
(6) grease merges.The processing water that the oil phase that above-mentioned water-oil separating is obtained is obtained with step 5 carries out the whole place of tune
Reason, obtained water mutually mutually merge according to the mixing ratio of oil phase 3~5% with water, add alkylphenol-polyethenoxy (10) ether 6g,
It is sufficiently stirred, emulsification is uniform, returns to production line and uses.Ordinary circumstance oil phase meeting relative deficiency, need to add the wire drawing oil of respective amount
Stoste.
Embodiment two
The treatment for reuse technique of the copper drawing fluid waste liquid of the present embodiment, includes step following six：
(1) it is demulsified.1 liter of wire drawing liquid waste liquid is taken, under constant agitation, adds the 3ml concentrated sulfuric acids, pH value is 1~4, after
Continuous mixing time is 10min, mixing speed 60RPM.
(2) water-oil separating.Above-mentioned demulsification liquid is transferred in oil water separator, under the conditions of 50 DEG C, keeps the temperature 10h.It is and laggard
Row separation oil phase and water phase.
(3) oil removing.Above-mentioned separation water phase is taken, under constant agitation, adds 10%NaOH 25ml, 5% polyaluminium
Ferro-aluminum 2ml, 1 ‰ cationic polyacrylamide 0.5ml, continuation mixing time are 30min, the clear liquid of filtering.
(4) copper removal.The clear liquid that upper step obtains, adds direct current, is electrolysed under 1A current conditions, clear liquid from blue bleach or
It is faint yellow, it is terminal, electrolysis terminates.The elemental copper of powder state is attached in cathode, is separated and recovered from.Anode graphite electrode is cloudy
Pole red copper electrode.
(5) adjust.The clear liquid obtained after above-mentioned copper removal, it is 7.5~9 to add 10% calcium hydroxide and adjust pH.
(6) grease merges.The processing water that the oil phase that water-oil separating is obtained is obtained with step 5 is adjusted processing, obtains
Water mutually mutually merge with water according to the mixing ratio of oil phase 3~5%, add emulsifying agent secondary octyl phenol polyethenoxy (10) ether
6g, is sufficiently stirred, and emulsification is uniform, returns to production line and uses.Ordinary circumstance oil phase meeting relative deficiency, need to add the wire drawing of respective amount
Oily stoste.
Embodiment three
The treatment for reuse technique of the copper drawing fluid waste liquid of the present embodiment, includes step following six：
(1) it is demulsified.1 liter of wire drawing liquid waste liquid is taken, under constant agitation, adds 3ml sulfuric acid, pH value is 1~4, is continued
Mixing time is 30min, mixing speed 50RPM.
(2) water-oil separating.Above-mentioned demulsification liquid is transferred in oil water separator, under the conditions of 105 DEG C, keeps the temperature 2h.It is and laggard
Row separation oil phase and water phase.
(3) oil removing.It is 5% bodied ferric sulfate to take the concentration of 3g calcium hydroxides and 3mL, in small beaker, adds a small amount of water
Stir as uniform scattered paste shape, blown slowly and add above-mentioned separation water, and the concentration for adding 3mL is 5% bodied ferric sulfate, continuous
40min is stirred, 1 ‰ polyacrylamide 0.5ml are added in rear 3min, stands, filter to obtain clear liquid.
(4) copper removal.The clear liquid that upper step obtains, adds direct current, is electrolysed under 10A current conditions, and visual tank liquor becomes from blueness
It is colourless or faint yellow, it is terminal, stops electrolysis.The elemental copper of powder state is attached in cathode, is separated and recovered from.Anode graphite electricity
Pole, cathode red copper.
(5) adjust.The clear water obtained after above-mentioned copper removal, adds triethanolamine 10ml, and it is 7.5~9 to adjust pH.
(6) grease merges.The processing water that the oil phase that water-oil separating is obtained is obtained with step 5 is adjusted processing, obtains
Water phase, mutually merge with water according to the mixing ratio of oil phase 3~5%, add emulsifying agent secondary octyl phenol polyethenoxy (10) ether
6g, is sufficiently stirred, and emulsification is uniform, returns to production line and uses.Ordinary circumstance oil phase meeting relative deficiency, need to add the wire drawing of respective amount
Oily stoste.
The emulsifying agent of above-described embodiment can also use emulsifying agent JFC, sorbitan mono-oleic acid ester (this class) and polysorbate
One or more are replaced in (tween), the similar nature of the copper drawing fluid obtained after emulsification.Embodiment 1, embodiment 2 and reality
Apply the copper drawing fluid after the processing that example 3 obtains and the performance of wire drawing oil stoste is same or like, production line use can be returned.
Above content is that a further detailed description of the present invention in conjunction with specific preferred embodiments, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (10)
1. a kind for the treatment of for reuse technique of copper drawing fluid waste liquid, it is characterised in that the treatment for reuse technique is made of six steps, respectively
It is：Demulsification, water-oil separating, oil removing, copper removal, adjustment, grease merge.
2. the treatment for reuse technique of copper drawing fluid waste liquid according to claim 1, it is characterised in that the treatment for reuse technique
Process is specific as follows：
Step 1：Demulsification：Copper drawing fluid waste liquid is taken, under agitation, adds acid solution, it is 1~4 to be adjusted to pH value, stirring to drawing
Silk liquid waste liquid is changed into milky dirty solution from blue lacteous, up to the liquid that is demulsified；
Step 2：Water-oil separating：The demulsification liquid of step 1 is transferred to oil water separator, oil phase and water phase is then separated, obtains
Separate water phase and separation oil phase；
Step 3：Oil removing：In the separation water phase of step 2, the heavy agent of wadding is added, to remove remaining organic matter, obtains clear liquid；
Step 4：Copper removal：The clear liquid that step 3 is obtained, is electrolysed under 1~10A, and observation water fades to colourless or yellowish from blueness
Color, electrolysis terminate, and obtain processing water, elemental copper is obtained in cathode；
Step 5：Adjustment：PH adjusting agent is added in the processing water of step 4 so that processing water pH value is 7.5~9；
Step 6：Grease merges：Separation oil phase in step 2 is mixed with the processing water in step 5, emulsifying agent is added, stirs
Mix the copper drawing fluid after uniformly being handled.
3. the treatment for reuse technique of copper drawing fluid waste liquid according to claim 2, it is characterised in that acid solution is in step 1
Hydrochloric acid or sulfuric acid.
4. the treatment for reuse technique of copper drawing fluid waste liquid according to claim 2, it is characterised in that speed is stirred in step 1
It is 5~40min to spend for 30~60RPM, mixing time.
5. the treatment for reuse technique of copper drawing fluid waste liquid according to claim 2, it is characterised in that grease point in step 2
Temperature from device is 50~105 DEG C, and soaking time is 2~10h.
6. the treatment for reuse technique of copper drawing fluid waste liquid according to claim 2, it is characterised in that heavy agent of wadding a quilt with cotton in step 3
For aluminium polychloride, polyaluminum ferric chloride, bodied ferric sulfate, polyacrylamide, cationic polyacrylamide, calcium hydroxide and hydrogen
It is one or more in sodium oxide molybdena.
7. the treatment for reuse technique of copper drawing fluid waste liquid according to claim 2, it is characterised in that sun is electrolysed in step 4
The graphite electrode of extremely non-dissolving.
8. the treatment for reuse technique of copper drawing fluid waste liquid according to claim 2, it is characterised in that pH is adjusted in step 5
Agent is any one in sodium hydroxide, calcium hydroxide or triethanolamine.
9. the treatment for reuse technique of copper drawing fluid waste liquid according to claim 2, it is characterised in that oil phase in step 6
Mixing ratio is 3~5%.
10. the treatment for reuse technique of copper drawing fluid waste liquid according to claim 2, it is characterised in that emulsified in step 6
Agent is polyoxethylene octylphenyl phenol ether -10, one or more in emulsifying agent JFC, sorbitan mono-oleic acid ester, polysorbate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711312869.XA CN108017202A (en) | 2017-12-12 | 2017-12-12 | A kind for the treatment of for reuse technique of copper drawing fluid waste liquid |
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| CN201711312869.XA CN108017202A (en) | 2017-12-12 | 2017-12-12 | A kind for the treatment of for reuse technique of copper drawing fluid waste liquid |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231592A (en) * | 2018-11-27 | 2019-01-18 | 安徽省绿巨人环境技术有限公司 | A kind of wire drawing oil wastewater treatment equipment and its treatment process |
| CN111321031A (en) * | 2020-04-28 | 2020-06-23 | 王东 | Purification method of waste lubricating oil |
| CN112707607A (en) * | 2021-02-07 | 2021-04-27 | 惠州德晋昌光电科技有限公司 | Wire drawing waste liquid treatment system and treatment method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648058A (en) * | 2005-01-07 | 2005-08-03 | 大连理工大学 | Microwave demulsifying and purifying method for emulsifying liquid waste water |
| CN101747988A (en) * | 2009-12-21 | 2010-06-23 | 克拉玛依市金山石油化工有限公司 | Copper and aluminum wire drawing oil and preparation method and use method thereof |
| CN104003551A (en) * | 2014-05-24 | 2014-08-27 | 安徽众源新材料股份有限公司 | Waste emulsified liquid treatment method |
| CN104388169A (en) * | 2014-10-30 | 2015-03-04 | 苏州广型模具有限公司 | Preparation method of wire-drawing mould lubricating agent |
| CN106007130A (en) * | 2016-08-09 | 2016-10-12 | 南昌航空大学 | Device and technology for advanced oxidation-electrolysis coupled recycling treatment on complex wastewater |
| CN107043185A (en) * | 2017-06-19 | 2017-08-15 | 深圳慧欣环境技术有限公司 | A kind of circuitboard etching waste liquid ammonia nitrogen processing method for resource recovery and system |
| CN107098556A (en) * | 2017-06-23 | 2017-08-29 | 江苏荣信环保科技有限公司 | The method that recycling sludge in Wire Rope Production reclaims metal |
-
2017
- 2017-12-12 CN CN201711312869.XA patent/CN108017202A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648058A (en) * | 2005-01-07 | 2005-08-03 | 大连理工大学 | Microwave demulsifying and purifying method for emulsifying liquid waste water |
| CN101747988A (en) * | 2009-12-21 | 2010-06-23 | 克拉玛依市金山石油化工有限公司 | Copper and aluminum wire drawing oil and preparation method and use method thereof |
| CN104003551A (en) * | 2014-05-24 | 2014-08-27 | 安徽众源新材料股份有限公司 | Waste emulsified liquid treatment method |
| CN104388169A (en) * | 2014-10-30 | 2015-03-04 | 苏州广型模具有限公司 | Preparation method of wire-drawing mould lubricating agent |
| CN106007130A (en) * | 2016-08-09 | 2016-10-12 | 南昌航空大学 | Device and technology for advanced oxidation-electrolysis coupled recycling treatment on complex wastewater |
| CN107043185A (en) * | 2017-06-19 | 2017-08-15 | 深圳慧欣环境技术有限公司 | A kind of circuitboard etching waste liquid ammonia nitrogen processing method for resource recovery and system |
| CN107098556A (en) * | 2017-06-23 | 2017-08-29 | 江苏荣信环保科技有限公司 | The method that recycling sludge in Wire Rope Production reclaims metal |
Non-Patent Citations (3)
| Title |
|---|
| 中国石化集团公司炼化部技术监督处编: "《石油化工产品企业标准汇编》", 31 March 2000 * |
| 周勤等: "高浓度铜拉丝废液处理试验研究", 《工业水处理》 * |
| 张天胜主编: "《表面活性剂应用技术》", 30 September 2001 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231592A (en) * | 2018-11-27 | 2019-01-18 | 安徽省绿巨人环境技术有限公司 | A kind of wire drawing oil wastewater treatment equipment and its treatment process |
| CN111321031A (en) * | 2020-04-28 | 2020-06-23 | 王东 | Purification method of waste lubricating oil |
| CN112707607A (en) * | 2021-02-07 | 2021-04-27 | 惠州德晋昌光电科技有限公司 | Wire drawing waste liquid treatment system and treatment method |
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Application publication date: 20180511 |