CN106349197A - Preparing method of emulsifier Span-80 for emulsion explosive - Google Patents
Preparing method of emulsifier Span-80 for emulsion explosive Download PDFInfo
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- CN106349197A CN106349197A CN201610762270.5A CN201610762270A CN106349197A CN 106349197 A CN106349197 A CN 106349197A CN 201610762270 A CN201610762270 A CN 201610762270A CN 106349197 A CN106349197 A CN 106349197A
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- sorbitol
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- span
- emulsion explosive
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
- C07D307/18—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/20—Oxygen atoms
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
- C06B23/009—Wetting agents, hydrophobing agents, dehydrating agents, antistatic additives, viscosity improvers, antiagglomerating agents, grinding agents and other additives for working up
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The preparing method of emulsifier Span-80 for emulsion explosive comprises the following steps: 1, heating the sorbitol solution to remove the free water to produce sorbitol; 2, reacting sorbitol with the catalyst to produce sorbitan; 3, refining oleic acid to produce essential oil; 4, putting the oleic acid and sorbitan anhydride into the reaction kettle, with 3 hours of esterification reaction at the temperature of 210 - 220 oC ; 5, materials from the above-mentioned reaction is conducted the vacuum dehydration and esterification to obtain the crude product; 6, the crude product is cooled and precipitated, and the sediment is released after the completion of the precipitation, and the remainder is the product of the emulsifier Span-80. Advantages of the invention:through the long-term production practice and the study,it's found that changing the molar ratio of acid to alcohol feedstock could reduce the input of raw materials, reduce the amount of sorbitol residue, increase the amount of product produced and improve the product production rate.
Description
Technical field
The present invention relates to a kind of synthetic method of emulsifying agent, especially a kind of system of emulsifier for emulsion explosive span-80
Standby technique.
Background technology
Span-80 emulsifying agent, scientific name sorbitan mono-oleic acid ester, belong to polyol-based non-ionic surfactant, be mesh
The most frequently used water-in-oil type good emulsifier in front production.Span-80 emulsifying agent adopts under Sorbitol acid catalysed conditions through de-
Water, etherificate generate anhydrosorbitol acid anhydride, then with Oleic acid in 200～210 DEG C about of high temperature, under the conditions of base catalysiss, in reactor
High temperature esterification forms.
Because synthesis technique is different, and the quality of the span-80 producing is just different, and the rate of output is also different simultaneously, at present
When producing emulsifying agent span-80, affected by proportioning raw materials, lead to react the Sorbitol sugar residue generating and carbon slag is more,
The rate of output is relatively low simultaneously, reduces production efficiency.
Content of the invention
It is an object of the invention to provide a kind of preparation technology of emulsifier for emulsion explosive span-80, above-mentioned to solve
The problem proposing in background technology.
Technical scheme is as follows: this technique comprises the following steps:
(1) 400kg sorbitol solution is warming up to 130～140 DEG C, sloughs free water, generate Sorbitol；
(2) by Sorbitol with catalyst under vacuum conditions, there is etherification reaction in 130～150 DEG C, the response time is 3 hours,
Generate anhydrous sorbitol acid anhydride；
(3) 740kg Oleic acid is warming up to 100～180 DEG C to be refined, generates quintessence oil acid；
(4) quintessence oil acid and anhydrous sorbitol acid anhydride are put in reactor, adding base catalyst, first protected with 180～190 DEG C
Temperature reaction 2 hours, is then reacted 3 hours with 210～220 DEG C of constant temperature esterification；
(5) above-mentioned reacted material is carried out with vacuum dehydration be esterified 1.5 hours, obtain thick finished product；
(6) thick finished product is moved in stillpot, carry out cooling precipitation under heat-retaining condition, the sedimentation time is 12 hours, temperature is
100～120 DEG C, after the completion of precipitation, release sediment from settling tank bottom, remaining as emulsifying agent span-80 finished product.
Preferably, in described step (2), the catalyst of employing is phosphoric acid, and the addition of phosphoric acid is Sorbitol quality
0.5%.
Preferably, in described step (4), the base catalyst of employing is sodium hydroxide, and the addition of base catalyst is
Anhydrous sorbitol acid anhydride and the 0.3% of quintessence oil acid gross mass.
Advantages of the present invention: by long-term production practices and research and analyse discovery, the acid alcohol mole that feed change feeds intake
Decrease raw material puts into ratio, decreases Sorbitol slag, improves the product volume of production, improves the rate of output of product.
Specific embodiment
Embodiment 1(contrast groups)
This technique comprises the following steps:
(1) 450kg sorbitol solution is warming up to 130～140 DEG C, sloughs free water, generate Sorbitol；
(2) by Sorbitol with catalyst under vacuum conditions, there is etherification reaction in 130～150 DEG C, the response time is 3 hours,
Generate anhydrous sorbitol acid anhydride；
(3) 750kg Oleic acid is warming up to 100～180 DEG C to be refined, generates quintessence oil acid；
(4) quintessence oil acid and anhydrous sorbitol acid anhydride are put in reactor with acid alcohol mol ratio 450:740, adding base catalysis
Agent, first with 180～190 DEG C of insulation reaction 2 hours, is then reacted 3 hours with 210～220 DEG C of constant temperature esterification；
(5) above-mentioned reacted material is carried out with vacuum dehydration be esterified 1.5 hours, obtain thick finished product；
(6) thick finished product is moved in stillpot, carry out cooling precipitation under heat-retaining condition, the sedimentation time is 12 hours, temperature is
100～120 DEG C, after the completion of precipitation, release sediment from settling tank bottom, remaining as emulsifying agent span-80 finished product.
Embodiment 2
This technique comprises the following steps:
(1) 400kg sorbitol solution is warming up to 130～140 DEG C, sloughs free water, generate Sorbitol；
(2) by Sorbitol with catalyst under vacuum conditions, there is etherification reaction in 130～150 DEG C, the response time is 3 hours,
Generate anhydrous sorbitol acid anhydride, the catalyst being adopted is phosphoric acid, the addition of phosphoric acid is the 0.5% of Sorbitol quality；
(3) 740kg Oleic acid is warming up to 100～180 DEG C to be refined, generates quintessence oil acid；
(4) quintessence oil acid and anhydrous sorbitol acid anhydride are put in reactor with acid alcohol mol ratio 450:740, adding base catalysis
Agent, first with 180～190 DEG C of insulation reaction 2 hours, is then reacted 3 hours with 210～220 DEG C of constant temperature esterification, the alkalescence being adopted
Catalyst is sodium hydroxide, and the addition of base catalyst is the 0.3% of anhydrous sorbitol acid anhydride and quintessence oil acid gross mass；
(5) above-mentioned reacted material is carried out with vacuum dehydration be esterified 1.5 hours, obtain thick finished product；
(6) thick finished product is moved in stillpot, carry out cooling precipitation under heat-retaining condition, the sedimentation time is 12 hours, temperature is
100～120 DEG C, after the completion of precipitation, release sediment from settling tank bottom, remaining as emulsifying agent span-80 finished product.
Embodiment 3～embodiment 4
Embodiment 3～4 is with the difference of embodiment 2, and the raw material Sorbitol of use is different with the quality of Oleic acid, concrete under
Table.
By upper table it is known that when the mass ratio of Oleic acid and Sorbitol is 1.85～1.98, rate of output highest.
Claims (3)
1. a kind of preparation technology of emulsifier for emulsion explosive span-80 is it is characterised in that this technique comprises the following steps:
(1) 400kg sorbitol solution is warming up to 130～140 DEG C, sloughs free water, generate Sorbitol；
(2) by Sorbitol with catalyst under vacuum conditions, there is etherification reaction in 130～150 DEG C, the response time is 3 hours,
Generate anhydrous sorbitol acid anhydride；
(3) 740kg Oleic acid is warming up to 100～180 DEG C to be refined, generates quintessence oil acid；
(4) quintessence oil acid and anhydrous sorbitol acid anhydride are put in reactor, adding base catalyst, first protected with 180～190 DEG C
Temperature reaction 2 hours, is then reacted 3 hours with 210～220 DEG C of constant temperature esterification；
(5) above-mentioned reacted material is carried out with vacuum dehydration be esterified 1.5 hours, obtain thick finished product；
(6) thick finished product is moved in stillpot, carry out cooling precipitation under heat-retaining condition, the sedimentation time is 12 hours, temperature is
100～120 DEG C, after the completion of precipitation, release sediment from settling tank bottom, remaining as emulsifying agent span-80 finished product.
2. as claimed in claim 1 a kind of preparation technology of emulsifier for emulsion explosive span-80 it is characterised in that described
In step (2), the catalyst of employing is phosphoric acid, and the addition of phosphoric acid is the 0.5% of Sorbitol quality.
3. as claimed in claim 1 a kind of preparation technology of emulsifier for emulsion explosive span-80 it is characterised in that described
In step (4), the base catalyst of employing is sodium hydroxide, and the addition of base catalyst is anhydrous sorbitol acid anhydride and quintessence oil acid
The 0.3% of gross mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610762270.5A CN106349197A (en) | 2016-08-30 | 2016-08-30 | Preparing method of emulsifier Span-80 for emulsion explosive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610762270.5A CN106349197A (en) | 2016-08-30 | 2016-08-30 | Preparing method of emulsifier Span-80 for emulsion explosive |
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| CN106349197A true CN106349197A (en) | 2017-01-25 |
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| CN201610762270.5A Pending CN106349197A (en) | 2016-08-30 | 2016-08-30 | Preparing method of emulsifier Span-80 for emulsion explosive |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946818A (en) * | 2017-04-19 | 2017-07-14 | 杨桂廷 | The preparation method of emulsified explosive special emulsion agent |
| CN107670604A (en) * | 2017-10-16 | 2018-02-09 | 湖北东神天神实业有限公司 | A kind of emulsifier for emulsion explosive and its production method and production equipment |
| CN109232484A (en) * | 2018-11-20 | 2019-01-18 | 四川雅化实业集团股份有限公司 | A kind of preparation method of the emulsifier for emulsion |
| CN114195744A (en) * | 2021-12-17 | 2022-03-18 | 抚顺东科精细化工有限公司 | Preparation method of cosmetic preservative mannitol salicylate dehydrate |
| CN114685403A (en) * | 2022-05-12 | 2022-07-01 | 广州嘉德乐生化科技有限公司 | Preparation method of span for food processing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102910994A (en) * | 2012-10-23 | 2013-02-06 | 葛洲坝易普力湖北昌泰民爆有限公司 | Synthetic method of emulsifier SP-80 for emulsion explosive |
| US20130184369A1 (en) * | 2012-01-18 | 2013-07-18 | Gunnar Kampf | Preparing rigid polyurethane foams |
-
2016
- 2016-08-30 CN CN201610762270.5A patent/CN106349197A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130184369A1 (en) * | 2012-01-18 | 2013-07-18 | Gunnar Kampf | Preparing rigid polyurethane foams |
| CN102910994A (en) * | 2012-10-23 | 2013-02-06 | 葛洲坝易普力湖北昌泰民爆有限公司 | Synthetic method of emulsifier SP-80 for emulsion explosive |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946818A (en) * | 2017-04-19 | 2017-07-14 | 杨桂廷 | The preparation method of emulsified explosive special emulsion agent |
| CN107670604A (en) * | 2017-10-16 | 2018-02-09 | 湖北东神天神实业有限公司 | A kind of emulsifier for emulsion explosive and its production method and production equipment |
| CN109232484A (en) * | 2018-11-20 | 2019-01-18 | 四川雅化实业集团股份有限公司 | A kind of preparation method of the emulsifier for emulsion |
| CN114195744A (en) * | 2021-12-17 | 2022-03-18 | 抚顺东科精细化工有限公司 | Preparation method of cosmetic preservative mannitol salicylate dehydrate |
| CN114195744B (en) * | 2021-12-17 | 2023-09-29 | 抚顺东科精细化工有限公司 | Preparation method of cosmetic preservative mannitol salicylate |
| CN114685403A (en) * | 2022-05-12 | 2022-07-01 | 广州嘉德乐生化科技有限公司 | Preparation method of span for food processing |
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