CN101045681A - Method for producing heavy stearate by reaction extrusion process of screus reactor - Google Patents
Method for producing heavy stearate by reaction extrusion process of screus reactor Download PDFInfo
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- CN101045681A CN101045681A CN 200710068285 CN200710068285A CN101045681A CN 101045681 A CN101045681 A CN 101045681A CN 200710068285 CN200710068285 CN 200710068285 CN 200710068285 A CN200710068285 A CN 200710068285A CN 101045681 A CN101045681 A CN 101045681A
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Abstract
This invention relates to a method of screw reactor by reaction extrusion craft producing heavy stearate. it include follows steps: intensive mixing stearic acid, metal oxide or metal hydrooxide, and catalyzer of 1 to 5 percent weight, the mol ratio of stearic acid and metal oxide or metal hydrooxide is 2:1; Heating in reactor to 100 - 150 deg, pre-reaction for 30 to 60 min, then transporting into screw reactor while the liquidity of reactant mixture is still good. screw conveyor segment temperature control at 100 to 150 deg. while the material enter kneading reaction segment, the temperature control at 130 to 180 deg. after intensive mixing, shearing, reaction, indigenous water is vacuum extracted by air vent. length-diameter ratio of screw reactor is 48 to 60:1, rotation rate of it is 50 to 500 rpm, material dwell time 1 to 5 min; Temperature of extrusion area is controlled at 110 to 160 deg. composite cooling to freezing point neighborhood, and transport to granule manufacture mode for granulation; Products packed after wind cooling.
Description
Technical field
The present invention relates to a kind of method of producing the heavy stearate, particularly a kind of method that adopts producing heavy stearate by reaction extrusion process of screus reactor.
Background technology
The stearate series products, for example calcium stearate, Zinic stearas, barium stearate, Magnesium Stearate etc. are widely used in acid neutralizing agent, thermo-stabilizer in the polyolefine; Lubricant, the releasing agent of processing such as resin, rubber; The water-resisting agent of waterproof, rainproof material; Paint flatting agent etc.The domestic method for preparing stearate is that stearic acid (technical grade mostly is 16 carbonic acid and 18 carbonate mixtures) and metal oxide or metal hydroxides react in liquid medium (water or aromatic hydrocarbons etc.), through operations such as separation, washing, dryings, produce the lightweight powder-like product.This technique process is loaded down with trivial details, energy consumption is high, and the liquid medium loss is big, and product is lightweight powder (bulk density is not more than 0.2g/m3), and dust pollution is all very serious in production and use.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of method that adopts producing heavy stearate by reaction extrusion process of screus reactor is provided.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
A kind of method of producing heavy stearate by reaction extrusion process of screus reactor is characterized in that comprising the steps:
It is 1～5% catalyzer that stearic acid and metal oxide or metal hydroxides are added weight per-cent, thorough mixing, and stearic acid and metal oxide or metal hydroxides mol ratio are 2: 1, and mixture directly steadily is transported to screw reactor;
Or stearic acid and metal oxide or metal hydroxides are added weight per-cent is 1～5% catalyzer, thorough mixing, stearic acid and metal oxide or metal hydroxides mol ratio are 2: 1, in reactor internal heating to 100～150 ℃, pre-reaction 30～60min, the mobile property of reaction mixture is transported to screw reactor when fair;
Screw rod transmission section temperature is controlled at 100～150 ℃, and material enters the kneading conversion zone, and temperature is controlled at 130～180 ℃, and through intense mixing, shearing, reaction, the water of generation is through the venting port vacuum extraction; Screw reactor length-to-diameter ratio 48～60: 1, screw speed 50～500rpm, residence time of material 1～5min;
The extruding zone temperature is controlled at 110～160 ℃, and synthetics is cooled near the zero pour, steadily is transported to the granulation of pelletizing die head;
Air-cooled back packing obtains high-quality dense stearate product, and bulk density is greater than 0.4g/m
3
Described metal oxide is calcium oxide, zinc oxide, barium oxide or magnesium oxide, and metal hydroxides is calcium hydroxide, zinc hydroxide, hydrated barta or magnesium hydroxide.
Described catalyzer is hydrogen peroxide, powder hypochlorite.
The present invention compared with prior art has following advantage:
Adopt the parallel dual-screw reactor, mix stearic acid and metal oxide or metal hydroxides directly fusion, kneading in reactor after (or pre-reaction), react, extrude, pelletizing.Reaction is carried out continuously, and product does not need drying, the particle straight forming; No dust pollution; And can make the product of different-grain diameter as required.
Description of drawings
Fig. 1 is preparation method's schema of the present invention.
Embodiment
Below the present invention is described in further detail.
Embodiment 1:
Pre-reaction technology: with 93 kilograms in calcium oxide, 907 kilograms of stearic acid, be warmed up to 115～135 ℃ at pre-reactor, fully stir the back and add 10～20 kilograms in hydrogen peroxide, reaction 30min, control response intensity, (temperature is too high the viscosity flow figure to keep mixture, reaction is violent, is easy to sticking still, causes reaction insufficient, discharging is stopped up), stir and do not stop,, evenly be transported to screw reactor (screw diameter 62.4mm with the blanking velocity of 2.5kg/min, length-to-diameter ratio 60: 1), screw speed 120rpm, 150 ℃ of feed zone temperature, fusion, mediate, shear, reaction zone temperature is controlled at 160～180 ℃, extrude, the delivery area temperature is controlled at 155 ℃, particle diameter die face as required is fervent, packs product bulk density 0.4～0.6g/m after air-cooled
3, light yellow transparent crystals particle, the superior grade standard of index.
Embodiment 2:
Dry mixing process: with the proportioning raw materials of embodiment 1, add the powder Losantin and make catalyzer for 10 kilograms, in high-speed mixer, stir; Mixture directly steadily is transported to screw reactor, and screw speed is 60rpm, and the feed zone temperature is brought up to 160 ℃, and last part technology is the same.
Claims (3)
1, a kind of method of producing heavy stearate by reaction extrusion process of screus reactor is characterized in that comprising the steps:
It is 1～5% catalyzer that stearic acid and metal oxide or metal hydroxides are added weight per-cent, thorough mixing, and stearic acid and metal oxide or metal hydroxides mol ratio are 2: 1, and mixture directly steadily is transported to screw reactor;
Or stearic acid and metal oxide or metal hydroxides are added weight per-cent is 1～5% catalyzer, thorough mixing, stearic acid and metal oxide or metal hydroxides mol ratio are 2: 1, in reactor internal heating to 100～150 ℃, pre-reaction 30～60min, the mobile property of reaction mixture is transported to screw reactor when fair;
Screw rod transmission section temperature is controlled at 100～150 ℃, and material enters the kneading conversion zone, and temperature is controlled at 130～180 ℃, and through intense mixing, shearing, reaction, the water of generation is through the venting port vacuum extraction; Screw reactor length-to-diameter ratio 48～60: 1, screw speed 50～500rpm, residence time of material 1～5min;
The extruding zone temperature is controlled at 110～160 ℃, and synthetics is cooled near the zero pour, steadily is transported to the granulation of pelletizing die head;
Air-cooled back packing.
2, the method for producing heavy stearate by reaction extrusion process of screus reactor according to claim 1, it is characterized in that: described metal oxide is calcium oxide, zinc oxide, barium oxide or magnesium oxide, and metal hydroxides is calcium hydroxide, zinc hydroxide, hydrated barta or magnesium hydroxide.
3, the method for producing heavy stearate by reaction extrusion process of screus reactor according to claim 1 is characterized in that: described catalyzer is hydrogen peroxide, powder hypochlorite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100682852A CN101045681B (en) | 2007-04-30 | 2007-04-30 | Method for producing heavy stearate by reaction extrusion process of screus reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100682852A CN101045681B (en) | 2007-04-30 | 2007-04-30 | Method for producing heavy stearate by reaction extrusion process of screus reactor |
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| CN101045681A true CN101045681A (en) | 2007-10-03 |
| CN101045681B CN101045681B (en) | 2010-12-08 |
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Cited By (9)
| 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 |
| CN102358452A (en) * | 2011-06-22 | 2012-02-22 | 南通市康桥油脂有限公司 | Environment-friendly, energy-saving and high-efficiency packaging process for chemical slices with solidifying point higher than normal temperature |
| CN103922917A (en) * | 2013-01-15 | 2014-07-16 | 中山华明泰化工股份有限公司 | Grain level fatty acid calcium |
| CN104387257A (en) * | 2014-12-11 | 2015-03-04 | 东莞市汉维新材料科技有限公司 | Method for preparing lithium stearate |
| CN107903439A (en) * | 2017-11-27 | 2018-04-13 | 南通新邦化工科技有限公司 | A kind of method of One-step production barium zinc stabilizer |
| CN108178738A (en) * | 2017-11-22 | 2018-06-19 | 凯莱英生命科学技术(天津)有限公司 | Metformin hydrochloride synthesis system and preparation method |
| CN108559129A (en) * | 2017-11-28 | 2018-09-21 | 南通新邦化工科技有限公司 | A kind of method of One-step production powder calcium zinc stabilizer |
| CN112169743A (en) * | 2020-11-30 | 2021-01-05 | 北京艾科美特新材料开发有限公司 | Inorganic-organic composite material preparation system |
| WO2021120001A1 (en) * | 2019-12-17 | 2021-06-24 | 江苏凯伦建材股份有限公司 | Single-component solvent-free anti-sagging polyurethane waterproof coating, production system, and production method thereof |
-
2007
- 2007-04-30 CN CN2007100682852A patent/CN101045681B/en active Active
Cited By (12)
| 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 |
| CN102358452A (en) * | 2011-06-22 | 2012-02-22 | 南通市康桥油脂有限公司 | Environment-friendly, energy-saving and high-efficiency packaging process for chemical slices with solidifying point higher than normal temperature |
| CN103922917A (en) * | 2013-01-15 | 2014-07-16 | 中山华明泰化工股份有限公司 | Grain level fatty acid calcium |
| CN104387257A (en) * | 2014-12-11 | 2015-03-04 | 东莞市汉维新材料科技有限公司 | Method for preparing lithium stearate |
| CN104387257B (en) * | 2014-12-11 | 2017-03-15 | 东莞市汉维科技股份有限公司 | The preparation method of lithium stearate |
| CN108178738A (en) * | 2017-11-22 | 2018-06-19 | 凯莱英生命科学技术(天津)有限公司 | Metformin hydrochloride synthesis system and preparation method |
| CN108178738B (en) * | 2017-11-22 | 2020-09-22 | 凯莱英生命科学技术(天津)有限公司 | Metformin hydrochloride synthesis system and preparation method |
| CN107903439A (en) * | 2017-11-27 | 2018-04-13 | 南通新邦化工科技有限公司 | A kind of method of One-step production barium zinc stabilizer |
| CN108559129A (en) * | 2017-11-28 | 2018-09-21 | 南通新邦化工科技有限公司 | A kind of method of One-step production powder calcium zinc stabilizer |
| WO2021120001A1 (en) * | 2019-12-17 | 2021-06-24 | 江苏凯伦建材股份有限公司 | Single-component solvent-free anti-sagging polyurethane waterproof coating, production system, and production method thereof |
| CN112169743A (en) * | 2020-11-30 | 2021-01-05 | 北京艾科美特新材料开发有限公司 | Inorganic-organic composite material preparation system |
| CN112169743B (en) * | 2020-11-30 | 2021-03-23 | 北京艾科美特新材料开发有限公司 | Inorganic-organic composite material preparation system |
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| Publication number | Publication date |
|---|---|
| CN101045681B (en) | 2010-12-08 |
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Owner name: YUYUE (NINGBO) NEW MATERIAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: YUYUE (NINGBO) CHEMICAL SCIENCE + TECHNOLOGY CO., LTD. |
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Address after: 315821, No. six, No. 58, weft Road, Beilun District, Zhejiang, Ningbo Patentee after: Yu Yue (Ningbo) new Mstar Technology Ltd Address before: 315803, No. six, No. 58, weft Road, Beilun District, Zhejiang, Ningbo Patentee before: Yuyue (Ningbo) Chemical Science & Technology Co., Ltd. |