CN102898674B - Saturated solution of sodium chloride for separating regenerated polyester bottle chips - Google Patents
Saturated solution of sodium chloride for separating regenerated polyester bottle chips Download PDFInfo
- Publication number
- CN102898674B CN102898674B CN201210399784.0A CN201210399784A CN102898674B CN 102898674 B CN102898674 B CN 102898674B CN 201210399784 A CN201210399784 A CN 201210399784A CN 102898674 B CN102898674 B CN 102898674B
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- CN
- China
- Prior art keywords
- aqueous solution
- solution
- white oil
- polyester bottle
- sodium chloride
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Detergent Compositions (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
The invention relates to the field of recycling of regenerated polyester bottle chip recovering, in particular to a saturated solution of sodium chloride for separating regenerated polyester bottle chips. The solution is prepared by adding an aqueous solution of white oil which is emulsified in industry into a saturated solution of sodium chloride, wherein the emulsifying agent accounts for 5 to 20 percent of the weight of the aqueous solution of the white oil, and the weight ratio of the saturated solution of sodium chloride to the mixed solution of white oil is 1.38 to 1.50g/cm<3>. The solution disclosed by the invention does not have odor, toxic and corrosive effect, is easy to prepare and recover, is slightly influenced by ambient temperature and is low in cost; by the solution, the washing operation of a following process is easy. The solution can be recycled.
Description
Technical field
The present invention relates to a kind of regenerative piece of polyester bottle and recycle field, relate in particular to a kind of saturated nacl aqueous solution for separating of regenerative piece of polyester bottle.
Background technology
At present, in PET bottle sheet removal process, keep away and unavoidably have metal (iron filings, aluminium skin, copper scale etc.) impurity and nonmetallic impurity (sand, cement block, stone etc.), these impurity scrap iron removings can separate at the scraps of paper with strong magnetic, outside cleaning and removing in process or pouring process, aluminium skin, copper scale, sand, stone, cement block etc. because of its do not have magnetic or proportion compared with PET bottle sheet than heavy, conventionally with single solution (as saturated brine, calcium chloride solution etc.) cannot realize separating of PET bottle sheet and above-mentioned impurity, and the existence of these impurity will have a strong impact on strainer, the spinning cycle of assembly, and reduce such as cleaning with flood dragon, water extracter, screw rod, the work-ing life of filter net sheet.Although and existing electrostatic separation, flotation separation etc. can occasionally realize the separation of partial impurities but because its cost is high, facility investment expense is large, the reason such as the efficiency of separation is low, not yet reaches the requirement of suitability for industrialized production.
Summary of the invention
In order to solve above-mentioned technical problem, the object of this invention is to provide a kind of saturated nacl aqueous solution for separating of regenerative piece of polyester bottle, this solution has nontoxic, tasteless, corrosion-free, easily proportioning, influenced by ambient temperature little, easily reclaim, cost is low, next procedure easy cleaning, the feature of reusable edible.
In order to realize above-mentioned object, the present invention has adopted following technical scheme:
For separating of the saturated nacl aqueous solution of regenerative piece of polyester bottle, this solution is in sodium chloride saturated solution, to add the industrial white oil aqueous solution after industrial emulsion to prepare, in the industrial white oil aqueous solution, emulsifying agent accounts for 5% ~ 20% of white oil weight, and the proportion of the mixing solutions of saturated nacl aqueous solution and white oil is 1.38 ~ 1.50g/cm
3.
As preferably, the proportion of described saturated nacl aqueous solution and the mixing solutions of white oil is 1.40 ~ 1.48g/cm
3.
As preferably, the preparation method of the described industrial white oil aqueous solution is as follows: at ambient temperature, and after emulsifying agent and white oil mix in proportion, under agitation condition, add gradually quantitative water, form water-in-oil system, under this thickness state, keep 20 ~ 60 minutes, then add water gradually, stir.
As preferably, described emulsifying agent adopts nonionic emulsifier.
The present invention is owing to having adopted above-mentioned technical scheme, and this solution can be less than 1.33g/cm for separating of PET bottle sheet or other density
3plastics in the magnetic and the non-magnetic impurity that contain, adopts PET bottle sheet that the method density is little or bottle neck to float over and be suspended in the middle of solution, and density is much larger than 1.5g/cm
3magneticmetal or non-magnetic metal and sand, stone etc. can separate with PET bottle sheet, bottle neck easily.Solution of the present invention has nontoxic, tasteless, corrosion-free, and easily proportioning, influenced by ambient temperature little, easily reclaims, and cost is low, next procedure easy cleaning, the feature of reusable edible.
Embodiment
embodiment 1
For separating of the saturated nacl aqueous solution of regenerative piece of polyester bottle, the preparation of this saturated nacl aqueous solution comprises the following steps: 1) configuration of sodium chloride saturated solution, in stirred pot, add enough industrial sodium-chlor, the stirring that then adds water, the solution after stirring is sodium chloride saturated solution.2) in sodium chloride saturated solution, add the industrial white oil aqueous solution after industrial emulsion, in the industrial white oil aqueous solution, emulsifying agent accounts for 10% of white oil weight, emulsifying agent adopts nonionic emulsifier, and the proportion of the mixing solutions of saturated nacl aqueous solution and white oil is just 1.38g/cm
3; The preparation method of the industrial white oil aqueous solution is as follows: at ambient temperature, after emulsifying agent and white oil mix in proportion, under agitation condition, add gradually quantitative water, form water-in-oil system, keep 20 minutes, then add water gradually under this thickness state, stir.
When use, regenerative piece of polyester bottle is dropped in stirred pot, in whipping process, proportion is greater than 1.50g/cm
3metal or nonmetallic impurity sink to gradually the bottom of tripping device, regenerative piece of polyester bottle is suspended in the surface of this mixing solutions, the regenerative piece of polyester bottle that uses special mechanism to fish for suspension just can be realized the separation of regenerative piece of polyester bottle.
embodiment 2
For separating of the saturated nacl aqueous solution of regenerative piece of polyester bottle, the preparation of this saturated nacl aqueous solution comprises the following steps: 1) configuration of sodium chloride saturated solution, in stirred pot, add enough industrial sodium-chlor, the stirring that then adds water, the solution after stirring is sodium chloride saturated solution.2) in sodium chloride saturated solution, add the industrial white oil aqueous solution after industrial emulsion, in the industrial white oil aqueous solution, emulsifying agent accounts for 15% of white oil weight, emulsifying agent adopts nonionic emulsifier, and the proportion of the mixing solutions of saturated nacl aqueous solution and white oil is just 1.40g/cm
3; The preparation method of the industrial white oil aqueous solution is as follows: at ambient temperature, after emulsifying agent and white oil mix in proportion, under agitation condition, add gradually quantitative water, form water-in-oil system, keep 30 minutes, then add water gradually under this thickness state, stir.
When use, regenerative piece of polyester bottle is dropped in stirred pot, in whipping process, proportion is greater than 1.50g/cm
3metal or nonmetallic impurity sink to gradually the bottom of tripping device, regenerative piece of polyester bottle is suspended in the surface of this mixing solutions, the regenerative piece of polyester bottle that uses special mechanism to fish for suspension just can be realized the separation of regenerative piece of polyester bottle.
embodiment 3
For separating of the saturated nacl aqueous solution of regenerative piece of polyester bottle, the preparation of this saturated nacl aqueous solution comprises the following steps: 1) configuration of sodium chloride saturated solution, in stirred pot, add enough industrial sodium-chlor, the stirring that then adds water, the solution after stirring is sodium chloride saturated solution.2) in sodium chloride saturated solution, add the industrial white oil aqueous solution after industrial emulsion, in the industrial white oil aqueous solution, emulsifying agent accounts for 20% of white oil weight, emulsifying agent adopts nonionic emulsifier, and the proportion of the mixing solutions of saturated nacl aqueous solution and white oil is just 1.45g/cm
3; The preparation method of the industrial white oil aqueous solution is as follows: at ambient temperature, after emulsifying agent and white oil mix in proportion, under agitation condition, add gradually quantitative water, form water-in-oil system, keep 30 minutes, then add water gradually under this thickness state, stir.
When use, regenerative piece of polyester bottle is dropped in stirred pot, in whipping process, proportion is greater than 1.50g/cm
3metal or nonmetallic impurity sink to gradually the bottom of tripping device, regenerative piece of polyester bottle is suspended in the surface of this mixing solutions, the regenerative piece of polyester bottle that uses special mechanism to fish for suspension just can be realized the separation of regenerative piece of polyester bottle.
Claims (3)
1. for separating of the saturated nacl aqueous solution of regenerative piece of polyester bottle, it is characterized in that: this solution is in sodium chloride saturated solution, to add the industrial white oil aqueous solution after industrial emulsion to prepare, in the industrial white oil aqueous solution, emulsifying agent accounts for 5% ~ 20% of white oil weight, and the proportion of the mixing solutions of saturated nacl aqueous solution and white oil is 1.38 ~ 1.50g/cm
3; The preparation method of the above-mentioned industrial white oil aqueous solution is as follows: at ambient temperature, and after emulsifying agent and white oil mix in proportion, under agitation condition, add gradually quantitative water, form water-in-oil system, under this thickness state, keep 20 ~ 60 minutes, add water gradually again, stir.
2. according to the saturated nacl aqueous solution for separating of regenerative piece of polyester bottle claimed in claim 1, it is characterized in that: the proportion of the mixing solutions of saturated nacl aqueous solution and white oil is 1.40 ~ 1.48g/cm
3.
3. according to the saturated nacl aqueous solution for separating of regenerative piece of polyester bottle described in claim 1 or 2, it is characterized in that: emulsifying agent adopts nonionic emulsifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210399784.0A CN102898674B (en) | 2012-10-19 | 2012-10-19 | Saturated solution of sodium chloride for separating regenerated polyester bottle chips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210399784.0A CN102898674B (en) | 2012-10-19 | 2012-10-19 | Saturated solution of sodium chloride for separating regenerated polyester bottle chips |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102898674A CN102898674A (en) | 2013-01-30 |
| CN102898674B true CN102898674B (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210399784.0A Expired - Fee Related CN102898674B (en) | 2012-10-19 | 2012-10-19 | Saturated solution of sodium chloride for separating regenerated polyester bottle chips |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2015260783B2 (en) * | 2014-05-11 | 2019-11-28 | Infimer Technologies Ltd. | Method of separating waste material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1161365A (en) * | 1996-09-10 | 1997-10-08 | 中国科学院新疆化学研究所 | High temp. resistant high specific gravity emulsion contg. high salt water |
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2012
- 2012-10-19 CN CN201210399784.0A patent/CN102898674B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1161365A (en) * | 1996-09-10 | 1997-10-08 | 中国科学院新疆化学研究所 | High temp. resistant high specific gravity emulsion contg. high salt water |
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| CN102898674A (en) | 2013-01-30 |
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Granted publication date: 20141022 Termination date: 20171019 |