CN105251245A - Defoaming agent for phosphoric acid production - Google Patents
Defoaming agent for phosphoric acid production Download PDFInfo
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- CN105251245A CN105251245A CN201510718417.6A CN201510718417A CN105251245A CN 105251245 A CN105251245 A CN 105251245A CN 201510718417 A CN201510718417 A CN 201510718417A CN 105251245 A CN105251245 A CN 105251245A
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- phosphoric acid
- defoamer
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- acid extraction
- sulfonate
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Abstract
The invention relates to a defoaming agent for phosphoric acid production. 20 to 30 parts of water is added into a reaction kettle; then, 30 to 40 parts of sulfonate and 10 to 20 parts of accessory ingredients are added; the temperature is raised, and the materials are heated to 30 to 55 DEG C and are sufficiently stirred for 10 to 30min; then, 30 to 40 parts of mineral oil is slowly added; the materials are stirred for 5 to 20 minutes; a defoaming agent product is obtained. The defoaming agent related by the invention has the advantages that the production process is simple; the phosphoric acid quality is not influenced by the product; the raw material resources are wide; the price is proper, and the like.
Description
Technical field
The present invention relates to a kind of phosphoric acid extraction production defoamer.Belong to chemical defoamer field.
Background technology
In Wet-process Phosphoric Acid Production, when carbonate in ground phosphate rock and content of organics higher time, produce a large amount of CO with acid generation chemical reaction
2be dispersed in the reactant liquor containing organic principle continuously, at the froth bed that slip surface formation one is stable, its volume can reach 5% ~ 10% of reactant liquor volume usually, many adverse effects are brought to Wet-process Phosphoric Acid Production: first, affect dispersion and the acidolysis reaction of phosphate ore pulp, cause production capacity to decline; Secondly, namely froth bed reduces utilization rate of equipment and installations, makes material level observe difficulty; 3rd, hinder moisture evaporation and heat in course of reaction and remove, cause extraction tank reaction temperature to raise, time serious, foam can be brought to the even unrestrained groove of tail gas absorbing system in a large number, causes P
2o
5loss and environmental pollution.
Along with the minimizing day by day of high-grade phosphate rock resource, the raw material crisis of downstream phosphorus chemical industry is manifested gradually, have to use mid low grade phosphate rock.The phosphorus ore of middle-low grade needs flotation could meet the requirement of Wet-process Phosphoric Acid Production usually.And phosphorus ore has remained a large amount of floating agents in floatation process.As fatty acid collecting agent and aliphatic alcohols auxiliary agent, fatty acid collecting agent has collecting and foaming double action, and its active ingredient is aliphatic acid and soap thereof.Aliphatic acid is straight chain unsaturated acids mainly, as oleic acid, linoleic acid, leukotrienes etc.The surface tension of these surfactant materials solution is very low, when it is present in system, will greatly reduce the surface free energy of foam system; On the other hand, when the liquid film of foam is subject to impacting, at thinning place, local, surface area increases, the surface active molecules density of absorption reduces, surface tension raises, this just causes vicinity surface active molecules to try hard to move to thinning place, and make this place's surface adsorbed molecules return to original density, surface tension is reduced to original level.In transition process bioactive molecule carry near solution move together, make thinning liquid film be increased to again original thickness, safeguard the stable of foam, this capillary repair is that aliphatic alcohols auxiliary agent maintains one of factor of foam stabilization.The existence of these floating agents causes follow-up phosphoric acid by wet process extraction workshop section to produce a large amount of stable foams, and this has a strong impact on whole Wet-process Phosphoric Acid Production.
Phosphorus ore industry uses for many years always cleans phosphorus concentrate production phosphoric acid by wet process, fall sharply year by year owing to cleaning high-grade phosphorus heading at present, and Flotation phosphate concentrate increases year by year, cause producing foaming phenomena in Wet-process Phosphoric Acid Production process, cause enterprise to use Flotation phosphate concentrate produce adaptation also needs a period of time, usually add in acid manufacturing processes a large amount of defoamer or reduce production capacity meet production.Therefore, be necessary exploitation or filter out a kind of for floating mineral processing production phosphoric acid by wet process dedicated defoamer, to ensure the stable sustainable development of phosphorus chemical industry.
Summary of the invention
The present invention is directed to the problems such as above-mentioned phosphoric acid extraction froth breaking, provide a kind of phosphoric acid extraction defoamer, it is simple that this defoamer has production process of the present invention, and product does not affect phosphoric acid quality, and raw material sources are extensive, the advantages such as price is suitable.
For solving the problem, the present invention adopts and with technical scheme is:
A kind of phosphoric acid extraction production defoamer, is characterized in that this phosphoric acid extraction defoamer is made up of following mass fraction:
Mineral oil: 30-40;
Sulfonate: 30-40;
Auxiliary agent: 10-20;
All the other are water: 20-30;
Described mineral oil to comprise in diesel oil, gasoline, kerosene, Valelinum Liquidum one or more;
Described sulfonate to comprise in amber ester sulfonic acid, mahogany acid, lignin sulfonic acid, DBSA one or more;
Described auxiliary agent comprises in polyoxyethylene oleic acid ester, polyoxyethylene stearic acid ester, detergent alkylate a kind of and multiple.
The production stage of phosphoric acid extraction defoamer of the present invention: after adding water in a kettle., sulfonate, auxiliary agent are slowly joined in the water-bath of band stirring by mass fraction according to claim 1, intensification is heated to 30-55 DEG C, after abundant stirring 10-30min, slowly add mineral oil, after stirring 5-20min, obtain product.
It is simple that the defoamer that the present invention relates to has production process, and product does not affect phosphoric acid quality, and raw material sources are extensive, the advantages such as price is suitable.
Detailed description of the invention
The present invention develops a kind of phosphoric acid extraction production defoamer, add 20-30 part water in a kettle., after add 30-40 part sulfonate, 10-20 part auxiliary agent, intensification is heated to 30-55 DEG C, after abundant stirring 10-30min, slowly add 30-40 part mineral oil, after stirring 5-20min, obtain anti-foam product.
Embodiment 1
Mineral oil (diesel oil): 32;
Sulfonate (amber ester sulfonic acid): 33;
Auxiliary agent (polyoxyethylene oleic acid ester): 15;
Water: 20;
Preparation technology: add 20 parts of water in a kettle., after add 33 parts of sulfonate and 15 parts of auxiliary agents, heat up and be heated to 35 DEG C, after fully stirring 16min, slowly add 14 parts of mineral oil, after stirring 10min, obtain anti-foam product.
Embodiment 2
Mineral oil (diesel oil+gasoline+kerosene): 35;
Sulfonate (amber ester sulfonic acid+mahogany acid): 30;
Auxiliary agent (polyoxyethylene stearic acid ester+detergent alkylate): 13;
Water: 22;
Preparation technology: add 22 parts of water in a kettle., after add 30 parts of sulfonate and 13 parts of auxiliary agents, heat up and be heated to 38 DEG C, after fully stirring 21min, slowly add 35 parts of mineral oil, after stirring 8min, obtain anti-foam product.
Embodiment 3
Mineral oil (Valelinum Liquidum): 30;
Sulfonate (mahogany acid+lignin sulfonic acid+DBSA): 36;
Auxiliary agent (detergent alkylate): 11;
Water: 23;
Preparation technology: add 23 parts of water in water-bath, after add 36 parts of sulfonate and 11 parts of auxiliary agents, heat up and be heated to 47 DEG C, after fully stirring 17min, slowly add 30 parts of mineral oil, after stirring 15min, obtain anti-foam product.
Defoamer performance obtained in laboratory method of testing:
1000ml graduated cylinder is placed in 80 DEG C of thermostat constant temperature, adds 500g phosphate ore pulp (mass concentration 53%) respectively, (do not add defoamer is blank test to proper quantity of defoaming agent, and outer sample 1 is Yunnan phosphorizing treatment phosphoric acid extraction defoamer; Outer sample 2 is Guizhou phosphorizing treatment phosphoric acid extraction defoamer), the returning acid, stir with 200rpm rotating speed of 150g24%, drop into the sulfuric acid 200g of 95% fast.
Defoamer commercial application method:
In the application of Yunnan phosphorizing treatment, unit phosphorus pentoxide defoamer consumption is 1kg.
(consumption is 1kg/P in Yunnan phosphorizing treatment for defoaming effect embodiment laboratory and commercial application
2o
5) contrast table 1:
Table 1 defoaming effect embodiment contrasts
Claims (5)
1. a phosphoric acid extraction production defoamer, is characterized in that this phosphoric acid extraction defoamer is made up of following mass fraction:
Mineral oil: 30-40;
Sulfonate: 30-40;
Auxiliary agent: 10-20;
All the other are water: 20-30.
2. a kind of phosphoric acid extraction production defoamer according to claim 1, it is characterized in that described mineral oil comprises in diesel oil, gasoline, kerosene, Valelinum Liquidum one or more.
3. a kind of phosphoric acid extraction production defoamer according to claim 1, it is characterized in that described sulfonate comprises in amber ester sulfonic acid, mahogany acid, lignin sulfonic acid, DBSA one or more.
4. a kind of phosphoric acid extraction production defoamer according to claim 1, is characterized in that described auxiliary agent comprises one in polyoxyethylene oleic acid ester, polyoxyethylene stearic acid ester, detergent alkylate and multiple.
5. the production method of a phosphoric acid extraction defoamer, it is characterized in that defoamer production stage: after adding water in a kettle., sulfonate, auxiliary agent are slowly joined in the water-bath of band stirring by mass fraction according to claim 1, intensification is heated to 30 DEG C-55 DEG C, after abundant stirring 10min-30min, slowly add mineral oil, after stirring 5-20min, obtain product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510718417.6A CN105251245A (en) | 2015-10-30 | 2015-10-30 | Defoaming agent for phosphoric acid production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510718417.6A CN105251245A (en) | 2015-10-30 | 2015-10-30 | Defoaming agent for phosphoric acid production |
Publications (1)
| Publication Number | Publication Date |
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| CN105251245A true CN105251245A (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510718417.6A Pending CN105251245A (en) | 2015-10-30 | 2015-10-30 | Defoaming agent for phosphoric acid production |
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| CN (1) | CN105251245A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879431A (en) * | 2016-06-30 | 2016-08-24 | 云南磷化集团有限公司 | De-foaming agent for wet-process phosphoric acid extraction and preparation method for de-foaming agent |
| CN110152357A (en) * | 2019-07-03 | 2019-08-23 | 云南祺华科技有限公司 | A kind of phosphoric acid extraction production defoaming agent and preparation method thereof |
| CN113735083A (en) * | 2021-08-18 | 2021-12-03 | 武汉工程大学 | Method for eliminating wet-process phosphoric acid extraction reaction foam by normal-temperature oxidation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310814A (en) * | 2008-02-29 | 2008-11-26 | 浙江林学院 | Mineral oil antifoam agent and production method thereof |
| CN102600646A (en) * | 2012-03-28 | 2012-07-25 | 南宁春城助剂有限责任公司 | Defoamer for wet-process phosphoric acid production and production method thereof |
| WO2014144558A1 (en) * | 2013-03-15 | 2014-09-18 | Trane International Inc. | Lubricant defoaming additives and compositions |
| CN104069653A (en) * | 2013-03-29 | 2014-10-01 | 上海依科绿色工程有限公司 | Mineral oil defoamer and preparation method thereof |
-
2015
- 2015-10-30 CN CN201510718417.6A patent/CN105251245A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310814A (en) * | 2008-02-29 | 2008-11-26 | 浙江林学院 | Mineral oil antifoam agent and production method thereof |
| CN102600646A (en) * | 2012-03-28 | 2012-07-25 | 南宁春城助剂有限责任公司 | Defoamer for wet-process phosphoric acid production and production method thereof |
| WO2014144558A1 (en) * | 2013-03-15 | 2014-09-18 | Trane International Inc. | Lubricant defoaming additives and compositions |
| CN104069653A (en) * | 2013-03-29 | 2014-10-01 | 上海依科绿色工程有限公司 | Mineral oil defoamer and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879431A (en) * | 2016-06-30 | 2016-08-24 | 云南磷化集团有限公司 | De-foaming agent for wet-process phosphoric acid extraction and preparation method for de-foaming agent |
| CN110152357A (en) * | 2019-07-03 | 2019-08-23 | 云南祺华科技有限公司 | A kind of phosphoric acid extraction production defoaming agent and preparation method thereof |
| CN113735083A (en) * | 2021-08-18 | 2021-12-03 | 武汉工程大学 | Method for eliminating wet-process phosphoric acid extraction reaction foam by normal-temperature oxidation method |
| CN113735083B (en) * | 2021-08-18 | 2023-11-17 | 武汉工程大学 | Method for eliminating foam generated in wet phosphoric acid extraction reaction by normal-temperature oxidation method |
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