CN1915955A - Technique for preparing calcium zinc stearate - Google Patents
Technique for preparing calcium zinc stearate Download PDFInfo
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- CN1915955A CN1915955A CN 200610028207 CN200610028207A CN1915955A CN 1915955 A CN1915955 A CN 1915955A CN 200610028207 CN200610028207 CN 200610028207 CN 200610028207 A CN200610028207 A CN 200610028207A CN 1915955 A CN1915955 A CN 1915955A
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Abstract
This invention relates to a method for producing zinc calcium stearate. The method comprises: adding water into a reaction kettle, adding stearic acid, calcium source and zinc source under stirring, heating to 50-100 deg.C, reacting for 1-2 h, dehydrating and drying to obtain zinc calcium stearate. Compared with present techniques, the method has stable process, stable product quality, adequate water circulation and good production conditions.
Description
Technical field
The present invention relates to the preparation field of a kind of antacid, stablizer, during particularly a kind of polyvinyl resin is produced as the preparation technology of the zinc calcium stearate of antacid.
Background technology
Need to add catalyzer in the polyvinyl resin production process, this catalyzer is a tart, and residual inevitably in the product polyvinyl resin have a trace catalyst, and the existence of an acidic catalyst that these are residual will discharge halide-ions, for example Cl lentamente
-, this will produce corrosive nature to the resin treatment operating device, and the stability of resin and weathering resistance reduce in the storage and the course of processing simultaneously, and phenomenons such as resin degraded or color yellowing take place.Therefore, in poly production, must add antacid, i.e. zinc calcium stearate.Zinc calcium stearate can be caught Cl
-, harm has been eliminated in reaction with it immediately.
Zinc calcium stearate is the compound stablizer, uses as antacid in the production of polyvinyl resin, uses as one package stabilizer in polyvinyl chloride (PVC) RESINS processing.Along with developing rapidly of China's polyvinyl resin and polyvinyl chloride (PVC) RESINS, its demand is also increasing.
Domestic do not have zinc calcium stearate manufacturing enterprise at present, so the used zinc calcium stearate of domestic polyethylene production enterprise costs an arm and a leg by external import.Therefore development quality and performance zinc calcium stearate, the import substitution that all can reach the imported product level voluntarily for China's additives for plastics increases new variety, improves China's economic benefit and social benefit and becomes the task of top priority.
Summary of the invention
Purpose of the present invention is exactly the preparation method of the little zinc calcium stearate of a kind of constant product quality, the environmental pollution that provide in order to satisfy the demand.
Purpose of the present invention can be achieved through the following technical solutions: a kind of preparation technology of zinc calcium stearate, it is characterized in that, in reactor, add entry, stir adding stearic acid down, calcium hydroxide or calcium salt, zinc hydroxide or zinc salt, be warming up to 50～100 ℃, reacted 1～2 hour, then dehydration, drying obtains finished product.
Described stearic acid comprises various commercially available trade mark stearic acid.
Described calcium salt comprises calcium hydroxide, calcium oxide, lime carbonate, calcium acetate, calcium sulfate, nitrocalcite, calcium chloride.
Described zinc salt comprises zinc subcarbonate, zinc hydroxide, zinc acetate, zinc carbonate, zinc oxide, zinc sulfate, zinc nitrate, zinc chloride.
Preferred 80～90 ℃ of described temperature of reaction.
Preferred 1.5～2 hours of described reaction times.
Also can add alkali or sodium salt among the described preparation technology, alkali or sodium salt and calcium salt be added in the entry stir earlier, be warming up to 50～70 ℃, react 0.5～1.0 hour, and then adding stearic acid and zinc hydroxide or zinc salt, be warming up to 70～100 ℃, reacted 1～2 hour.
Also can add alkali or sodium salt among the described preparation technology, alkali or sodium salt and zinc salt be added in the entry stir earlier, be warming up to 50～70 ℃, reacted 0.5～1.0 hour, and then add stearic acid and calcium hydroxide or calcium salt, or calcium oxide, be warming up to 70～100 ℃, reacted 1～2 hour.
Described alkali comprises sodium hydroxide, potassium hydroxide.
Described sodium salt comprises yellow soda ash, sodium bicarbonate.
Compared with prior art, characteristics of the present invention are: by the synthetic zinc calcium stearate of a step non-pressure process, carry out batch and use on production polyethylene equipment, performance and technical indicator and imported product are suitable, no abnormal in the polythene production process, the polyethylene product steady quality; Water all recycles in the production technique, has realized waste water " zero " discharging, has stopped the pollution of waste water to environment, has adopted some more advanced at home equipment, and production environment is good.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1
In reactor, add entry 1-3 ton, add 300 kilograms of stearic acid, calcium hydroxide 20-25 kilogram (or calcium oxide 15-20 kilogram) under stirring, zinc subcarbonate 30-35 kilogram is warming up to 60-100 ℃, reacts 1.5 hours, dehydration then, drying obtains 321.5 kilograms of products.
Embodiment 2
In reactor, add entry 1-3 ton, stir and add 300 kilograms of stearic acid down, lime carbonate 20-25 kilogram (or calcium acetate 30-35 kilogram), zinc subcarbonate 30-35 kilogram, (or zinc hydroxide 25-30 kilogram, or zinc acetate), be warming up to 70 ℃, reacted 1.5 hours, then dehydration, drying obtains product.
Embodiment 3
In reactor, add entry 1-3 ton, stir calcium sulfate 45-50 kilogram (or calcium salts such as calcium chloride, nitrocalcite) down, sodium hydroxide 10-12 kilogram (also can use yellow soda ash, potassium hydroxide, sodium bicarbonate) is warming up to 50-70 ℃, reacted 0.5 hour, add 300 kilograms of stearic acid then, zinc subcarbonate 30-35 kilogram (or zinc hydroxide or zinc carbonate or zinc nitrate or zinc chloride) is warming up to 90 ℃, reacted 1.5 hours, dehydration then, drying obtains product.
Embodiment 4
In reactor, add entry 1-3 ton, add 300 kilograms of stearic acid, calcium hydroxide 20-25 kilogram (or calcium oxide 15-20 kilogram) under stirring, zinc hydroxide 25-30 kilogram (or zinc acetate or zinc carbonate) is warming up to 60-100 ℃, reacts 1.5 hours, dehydration then, drying obtains product.
Embodiment 5
In reactor, add entry 1-3 ton, stir adding zinc oxide 20-26 kilogram (zinc salts such as zinc oxide, zinc sulfate, zinc acetate or zinc carbonate) down then, yellow soda ash 15-20 kilogram (sodium hydroxide, potassium hydroxide, sodium bicarbonate) is warming up to 50-70 ℃, reacted 0.5 hour, add 300 kilograms of stearic acid then, calcium hydroxide 20-25 kilogram (calcium oxide, nitrocalcite or lime carbonate) is warming up to 100 ℃, reacted 1 hour, dehydration then, drying obtains product.
Embodiment 6
In reactor, add entry 1-3 ton, stir adding zinc oxide 20-26 kilogram (zinc salts such as zinc oxide, zinc sulfate, zinc acetate or zinc carbonate) down then, yellow soda ash 15-20 kilogram (sodium hydroxide, potassium hydroxide, sodium bicarbonate) is warming up to 60 ℃, reacted 0.5 hour, add 300 kilograms of stearic acid then, calcium sulfate 45-50 kilogram (or calcium oxide or nitrocalcite or lime carbonate or calcium chloride) is warming up to 100 ℃, reacted 1 hour, dehydration then, drying obtains product.
Claims (10)
1. the preparation technology of a zinc calcium stearate is characterized in that, adds entry in reactor, stir down to add stearic acid, and calcium hydroxide or calcium salt, zinc hydroxide or zinc salt are warming up to 50～100 ℃, reacted 1～2 hour, dehydration then, drying obtains finished product.
2. the preparation technology of a kind of zinc calcium stearate according to claim 1 is characterized in that, described stearic acid comprises various commercially available trade mark stearic acid.
3. the preparation technology of a kind of zinc calcium stearate according to claim 1 is characterized in that, described calcium salt comprises calcium hydroxide, calcium oxide, lime carbonate, calcium acetate, calcium sulfate, nitrocalcite, calcium chloride.
4. the preparation technology of a kind of zinc calcium stearate according to claim 1 is characterized in that, described zinc salt comprises zinc subcarbonate, zinc hydroxide, zinc acetate, zinc carbonate, zinc oxide, zinc sulfate, zinc nitrate, zinc chloride.
5. the preparation technology of a kind of zinc calcium stearate according to claim 1 is characterized in that, preferred 80～90 ℃ of described temperature of reaction.
6. the preparation technology of a kind of zinc calcium stearate according to claim 1 is characterized in that, preferred 1.5～2 hours of described reaction times.
7. the preparation technology of a kind of zinc calcium stearate according to claim 1, it is characterized in that, also can add alkali or sodium salt among the described preparation technology, earlier alkali or sodium salt and calcium salt are added in the entry and stir, be warming up to 50～70 ℃, reacted 0.5～1.0 hour, and then add stearic acid and zinc hydroxide or zinc salt, be warming up to 70～100 ℃, reacted 1～2 hour.
8. the preparation technology of a kind of zinc calcium stearate according to claim 1, it is characterized in that, also can add alkali or sodium salt among the described preparation technology, earlier alkali or sodium salt and zinc salt are added in the entry and stir, be warming up to 50～70 ℃, reacted 0.5～1.0 hour, and then adding stearic acid and calcium hydroxide or calcium salt, or calcium oxide, be warming up to 70～100 ℃, reacted 1～2 hour.
9. according to Claim 8 or the preparation technology of 9 described a kind of zinc calcium stearates, it is characterized in that described alkali comprises sodium hydroxide, potassium hydroxide.
10. according to Claim 8 or the preparation technology of 9 described a kind of zinc calcium stearates, it is characterized in that described sodium salt comprises yellow soda ash, sodium bicarbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100282075A CN100415706C (en) | 2006-06-27 | 2006-06-27 | Technique for preparing calcium zinc stearate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100282075A CN100415706C (en) | 2006-06-27 | 2006-06-27 | Technique for preparing calcium zinc stearate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1915955A true CN1915955A (en) | 2007-02-21 |
| CN100415706C CN100415706C (en) | 2008-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100282075A Expired - Fee Related CN100415706C (en) | 2006-06-27 | 2006-06-27 | Technique for preparing calcium zinc stearate |
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| CN (1) | CN100415706C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106565461A (en) * | 2016-11-03 | 2017-04-19 | 南阳仁创砂业科技有限公司 | Preparation of superfine calcium stearate and application of calcium stearate in precoated sand |
| CN112759791A (en) * | 2021-01-22 | 2021-05-07 | 杭州欣科复合材料有限公司 | Production method of calcium-zinc stabilizer for producing hard and plastic polyvinyl chloride material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL132018C (en) * | 1965-06-14 |
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2006
- 2006-06-27 CN CNB2006100282075A patent/CN100415706C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106565461A (en) * | 2016-11-03 | 2017-04-19 | 南阳仁创砂业科技有限公司 | Preparation of superfine calcium stearate and application of calcium stearate in precoated sand |
| CN112759791A (en) * | 2021-01-22 | 2021-05-07 | 杭州欣科复合材料有限公司 | Production method of calcium-zinc stabilizer for producing hard and plastic polyvinyl chloride material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100415706C (en) | 2008-09-03 |
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Granted publication date: 20080903 Termination date: 20170627 |