CN101486636A - Preparation of nonaqueous synthesized lead stearate - Google Patents
Preparation of nonaqueous synthesized lead stearate Download PDFInfo
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- CN101486636A CN101486636A CNA2008102340623A CN200810234062A CN101486636A CN 101486636 A CN101486636 A CN 101486636A CN A2008102340623 A CNA2008102340623 A CN A2008102340623A CN 200810234062 A CN200810234062 A CN 200810234062A CN 101486636 A CN101486636 A CN 101486636A
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- lead stearate
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- lead
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Abstract
The invention relates to a method for preparing a non-aqueous and synthesized lead stearate salt. The method directly adopts stearic acid and lead oxide as raw materials, with the existence of the low temperature catalyst ethylene bis stearamide and hydrocarbon compounds such as refined high melting-point wax or liquid wax, at temperature of 70 DEG C to 80 DEG C, combination is conducted for 1 hour to 3 hours and the mixture of n-lead stearate and dibasic lead stearate. In the method, products are generated directly through a reaction without water, no acid or alkaline chemical materials need to be added, the products do not need drying and crushing, thus greatly reducing energy consumption and labor strength; no lead containing waste water is generated; and besides, the method has short reaction process, low energy consumption and low investment and reduces work procedures, costs and labor strength.
Description
Technical field
The present invention relates to plastics, rubber ingredients.
Background technology
The stearate series products, for example barium stearate, lead, cadmium, zinc, calcium etc. are the thermo-stabilizer and the photostabilizer of plastics, also can be used as flatting agent, siccative, the remover of plastics, the polishing agent of textiles of intensifier, the paint of lubricating oil etc.
But because above-mentioned compound all is difficult to water-soluble, the general double decomposition that adopts during preparation, promptly at first stearic acid and caustic soda reaction are generated sodium stearate, sodium stearate and the corresponding metal water soluble salt of producing in utilization carries out replacement(metathesis)reaction then, thereby make stearate, its reaction principle is as follows:
Its advantage is to react easily to carry out, and technology is easy to grasp.But there is following four major problem:
1. consume a large amount of alkali and acid, the sodium that consumes in the reaction finally changes sodium salt into and bleeds off with waste liquid, the cost height;
2. production process is understood a large amount of technology brine wastes of output, is about 5 times of weight of product, environment is produced pollute, and especially produces the waste water of discharging in the process of stearic acid lead salt and not only contains a large amount of inorganic salts, and human body, biology are caused murder by poisoning;
3. energy consumption is very big, and the stearate that reaction generates contains a large amount of inorganic salt, needs to consume massive laundering and washs, and water content height in the stearate after the washing needs processes such as centrifugation, oven for drying, mechanical disintegration;
4. equipment is many, investment is big, hand labor intensity is big.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of weakly alkaline of utilizing stearic slightly acidic and plumbous oxide, under certain conditions the method for the synthetic stearic acid lead salt of non-aqueous reaction.
The present invention is achieved through the following technical solutions:
A kind of preparation method of nonaqueous synthesized lead stearate, it is characterized in that adopting stearic acid and plumbous oxide raw material, in existing under the situation of low temperature catalyst and hydrocarbon compound, in the 1:2 ratio of NLS salt and dibasic lead stearate salt, under 70-80 ℃ of condition, synthesized 3 hours, promptly.
The preparation method of aforementioned nonaqueous synthesized lead stearate is characterized in that, described catalyzer is: ethylene bis stearamide, its consumption are the 3-6% of compound gross weight.
The preparation method of aforementioned nonaqueous synthesized lead stearate is characterized in that, described hydrocarbon compound is: refining inspissated wax or whiteruss, its consumption are the 15-30% of compound gross weight.
Reaction principle is as follows:
The invention has the beneficial effects as follows: present method reaction process is short, and energy consumption is low, and less investment reduces cost, and reduces operation, reduces labor strength, and product meets the HG2-1204-79 requirement.Adopt stearic acid and plumbous oxide anhydrous direct reaction under the low temperature catalyst condition, need not add the bronsted lowry acids and bases bronsted lowry industrial chemicals in addition, product need not dried, and pulverizes, and significantly reduces energy consumption and reduces labor intensity no lead waste water generation.Recovery rate is 99% of a theoretical value.
Embodiment
To describe the specific embodiment of the present invention in detail below:
Embodiment 1
Prescription: (unit: kg)
Stearic acid 75
Plumbous oxide 75
Ethylene bis stearamide 3
Paraffinic hydrocarbon 95
Weigh above each reactant respectively, add in the shape star stirred reactor, reaction is 2 hours under stirring state, and temperature of reaction is 70-80 ℃, discharging, the mixture of NLS and dibasic lead stearate, yield be theoretical value percentage this 99.Product is not moisture.
Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.
Claims (3)
1, a kind of preparation method of nonaqueous synthesized lead stearate, it is characterized in that adopting stearic acid and plumbous oxide raw material, in the presence of low temperature catalyst and hydrocarbon compound, 70-80 ℃ of temperature, chemical combination 1-3 hour, promptly get the mixture of NLS and dibasic lead stearate.
2, the preparation method of nonaqueous synthesized lead stearate according to claim 1 is characterized in that, described catalyzer is: ethylene bis stearamide, its consumption are the 3-6% of compound gross weight.
3, the preparation method of nonaqueous synthesized lead stearate according to claim 1 is characterized in that, described hydrocarbon compound is: refining inspissated wax or whiteruss, its consumption are the 15-30% of compound gross weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102340623A CN101486636B (en) | 2008-11-20 | 2008-11-20 | Preparation of nonaqueous synthesized lead stearate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102340623A CN101486636B (en) | 2008-11-20 | 2008-11-20 | Preparation of nonaqueous synthesized lead stearate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101486636A true CN101486636A (en) | 2009-07-22 |
| CN101486636B CN101486636B (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102340623A Active CN101486636B (en) | 2008-11-20 | 2008-11-20 | Preparation of nonaqueous synthesized lead stearate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050719A (en) * | 2009-11-04 | 2011-05-11 | 芮立 | Method for processing nonaqueous synthetic calcium stearate |
| CN102344582A (en) * | 2011-08-19 | 2012-02-08 | 南京协和助剂有限公司 | Non-aqueous production method for lead stearate compound stable lubricant |
| CN102432916A (en) * | 2011-08-19 | 2012-05-02 | 南京协和助剂有限公司 | Lead stearate stable lubricant, and production method and heat stabilizer composition thereof |
| CN103450003A (en) * | 2013-09-18 | 2013-12-18 | 南通新邦化工科技有限公司 | Preparation process of lead stearate based on melting method |
| CN107628940A (en) * | 2017-08-07 | 2018-01-26 | 郑州庆宏塑胶科技有限公司 | A kind of preparation method of lead stearate |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052846A (en) * | 1989-12-28 | 1991-07-10 | 潘宏 | One-step nonaqueous synthesizing process of stearate |
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2008
- 2008-11-20 CN CN2008102340623A patent/CN101486636B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050719A (en) * | 2009-11-04 | 2011-05-11 | 芮立 | Method for processing nonaqueous synthetic calcium stearate |
| CN102344582A (en) * | 2011-08-19 | 2012-02-08 | 南京协和助剂有限公司 | Non-aqueous production method for lead stearate compound stable lubricant |
| CN102432916A (en) * | 2011-08-19 | 2012-05-02 | 南京协和助剂有限公司 | Lead stearate stable lubricant, and production method and heat stabilizer composition thereof |
| CN102344582B (en) * | 2011-08-19 | 2013-04-17 | 南京协和助剂有限公司 | Non-aqueous production method for lead stearate compound stable lubricant |
| CN102432916B (en) * | 2011-08-19 | 2014-07-23 | 南京协和助剂有限公司 | Lead stearate stable lubricant, and production method and heat stabilizer composition thereof |
| CN103450003A (en) * | 2013-09-18 | 2013-12-18 | 南通新邦化工科技有限公司 | Preparation process of lead stearate based on melting method |
| CN107628940A (en) * | 2017-08-07 | 2018-01-26 | 郑州庆宏塑胶科技有限公司 | A kind of preparation method of lead stearate |
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| Publication number | Publication date |
|---|---|
| CN101486636B (en) | 2012-06-13 |
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