CN1554500A - Demolding agent - Google Patents
Demolding agent Download PDFInfo
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- CN1554500A CN1554500A CNA2003101041496A CN200310104149A CN1554500A CN 1554500 A CN1554500 A CN 1554500A CN A2003101041496 A CNA2003101041496 A CN A2003101041496A CN 200310104149 A CN200310104149 A CN 200310104149A CN 1554500 A CN1554500 A CN 1554500A
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- product
- releasing agent
- catalyst
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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The demolding agent is used mainly in the production of iron casting, cement product, adobe, etc. The demolding agent is prepared with heavy benzene, coal tar, waste engine oil, waste plastic or their mixture as main material, with the mixture of aluminum sulfate and sodium silicate, aluminum or zinc oxide as catalyst, and through cracking reaction of the main material under proper temperature to form low molecular weight arene and chain compound and subsequent addition of oleic acid or stearic acid in certain proportion via stirring. The demolding agent has the features of excellent demolding effect, low production cost, no pollution.
Description
Technical field
The present invention relates to a kind of releasing agent that product and mold separation are used.
Background technology
In ironcasting, cement products, adobe etc. are produced,, need to use releasing agent in order to make product and mold separation.At present the releasing agent that uses mainly is the material that grease class etc. has lubrication.The problem that exists mainly is the cost height, and stripping result is also not satisfactory.
Summary of the invention
The objective of the invention is to: a kind of new releasing agent is provided.This releasing agent not only stripping result is good, and production cost is low.
Technical scheme of the present invention: a kind of releasing agent is characterized in that: be made by following step;
A, get the mixture of heavy benzene, coal tar, used oil, waste plastics or these several materials as the A product;
B, in the A product, add the catalyst of A product weight 1-10%, make A product generation cracking reaction; Make the A product be cracked into little molecule aromatic hydrocarbon, little strand compound by big molecule aromatic hydrocarbon, macromolecular chain; Cracking temperature is 100-500 degree centigrade, and catalyst can be the mixture that constitutes of 1: 1 aluminum sulfate of weight ratio and sodium metasilicate, also can be aluminium oxide or zinc oxide; The reactant that obtains is the B product;
C, add oleic acid or the stearic acid of B product weight 10-100% in the B product, mixing must finished product after mixing thoroughly.
Among the described step b of above-mentioned releasing agent, cracking temperature is 150-500 degree centigrade.
Among the described step b of aforementioned releasing agent, preferably in the A product, add the catalyst of A product weight 3-7%, make the A product produce cracking reaction.
Among the described step c of aforementioned releasing agent, preferably in the B product, add oleic acid or the stearic acid of B product weight 30-100%.
In the aforementioned releasing agent, described waste plastics is: polyethylene (PE), as food waste bag, plastic film; Polypropylene (PP) is as various packing woven bags; Polystyrene (PS) is as bubble wrap material and mess-tin etc.
Compared with prior art, the invention provides a kind of new releasing agent.This releasing agent not only stripping result is good, and the main material that uses all is some cheap materials, and production cost is low.Have the production of being easy to, production cost is low, and is pollution-free, the characteristics that stripping result is good.Can be used in the productions such as ironcasting, cement products, adobe.
The specific embodiment
Embodiment 1.
A, in the 10L cracking still, add 6L heavy benzene (cut is at 130-250 degree centigrade) as the A product;
B, add 200g zinc oxide as catalyst in the A product, make the cracking between 150-400 degree centigrade of A product, the collection fraction obtains the B product of 4L;
C, in the B product, add the oleic acid of 4L, mix after mixing thoroughly the 8L finished product.
Embodiment 2.
A, in the 1000L cracking still, add 500L heavy benzene and 300L used oil as the A product;
B, add 25Kg aluminum sulfate and 25Kg sodium metasilicate as catalyst in the A product, make the cracking between 150-500 degree centigrade of A product, the collection fraction obtains the B product of 600L;
C, in the B product, add the oleic acid of 200L, mix after mixing thoroughly the 800L finished product.
Embodiment 3.
A, in the 3500L cracking still, adding 2400L coal tar is the A product;
B, add the 100Kg aluminium oxide as catalyst in the A product, make the cracking between 150-300 degree centigrade of A product, the collection fraction obtains the B product of 1100L;
C, in the B product, add the stearic acid of 400Kg, mix after mixing thoroughly the 1500L finished product.
Embodiment 4:
A, in the 3500L cracking still, adding 500L coal tar, 500L heavy benzene, 1000L used oil and 200KG waste plastics woven bag is the A product;
B, add the 100Kg aluminium oxide as catalyst in the A product, make the cracking between 150-300 degree centigrade of A product, the collection fraction obtains the B product of 2100L;
C, in the B product, add the stearic acid of 700Kg, mix after mixing thoroughly the 2800L finished product.
Claims (5)
1, a kind of releasing agent is characterized in that: be made by following step;
A, get the mixture of heavy benzene, coal tar, used oil, waste plastics or these several materials as the A product;
B, in the A product, add the catalyst of A product weight 1-10%, make A product generation cracking reaction; Cracking temperature is controlled at 100-500 degree centigrade, and catalyst is mixture or the aluminium oxide or the zinc oxide of 1: 1 aluminum sulfate of weight ratio and sodium metasilicate; The reactant that obtains is the B product;
C, add oleic acid or the stearic acid of B product weight 10-100% in the B product, mixing must finished product after mixing thoroughly.
2, releasing agent according to claim 1 is characterized in that: among the described step b, cracking temperature is controlled at 150-500 degree centigrade.
3, releasing agent according to claim 1 and 2 is characterized in that: among the described step b, be the catalyst that adds A product weight 3-7% in the A product, make the A product produce cracking reaction.
4, releasing agent according to claim 3 is characterized in that: among the described step c, be oleic acid or the stearic acid that adds B product weight 30-100% in the B product.
5, releasing agent according to claim 4 is characterized in that: described waste plastics is polyethylene, polypropylene and the modified styrene polymer of discarding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101041496A CN1554500A (en) | 2003-12-24 | 2003-12-24 | Demolding agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101041496A CN1554500A (en) | 2003-12-24 | 2003-12-24 | Demolding agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1554500A true CN1554500A (en) | 2004-12-15 |
Family
ID=34333463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101041496A Pending CN1554500A (en) | 2003-12-24 | 2003-12-24 | Demolding agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1554500A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658591A (en) * | 2011-12-16 | 2012-09-12 | 天津冶建特种材料有限公司 | Concrete release agent and preparation method thereof |
| CN101830032B (en) * | 2009-03-10 | 2013-07-17 | 刘新智 | Preparation method of concrete long-acting mould release agent |
| CN103320207A (en) * | 2013-06-27 | 2013-09-25 | 海安山河建材有限公司 | Method for preparing novel concrete component release agent |
| CN104874726A (en) * | 2015-06-24 | 2015-09-02 | 周彩球 | Casting release agent |
-
2003
- 2003-12-24 CN CNA2003101041496A patent/CN1554500A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830032B (en) * | 2009-03-10 | 2013-07-17 | 刘新智 | Preparation method of concrete long-acting mould release agent |
| CN102658591A (en) * | 2011-12-16 | 2012-09-12 | 天津冶建特种材料有限公司 | Concrete release agent and preparation method thereof |
| CN102658591B (en) * | 2011-12-16 | 2015-11-25 | 天津冶建特种材料有限公司 | A kind of Concrete release agent and preparation method thereof |
| CN103320207A (en) * | 2013-06-27 | 2013-09-25 | 海安山河建材有限公司 | Method for preparing novel concrete component release agent |
| CN104874726A (en) * | 2015-06-24 | 2015-09-02 | 周彩球 | Casting release agent |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |