CN104192867A - Method for removing floating agent out of potassium chloride - Google Patents
Method for removing floating agent out of potassium chloride Download PDFInfo
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- CN104192867A CN104192867A CN201410420105.2A CN201410420105A CN104192867A CN 104192867 A CN104192867 A CN 104192867A CN 201410420105 A CN201410420105 A CN 201410420105A CN 104192867 A CN104192867 A CN 104192867A
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- Prior art keywords
- repone
- flotation agent
- potassium chloride
- saturated solution
- floating agent
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Abstract
The invention discloses a method for removing a floating agent out of potassium chloride. The method comprises the following steps: firstly, dissolving a potassium chloride raw material containing the floating agent into water to form a saturated solution at a dissolving temperature of 20-110 DEG C, and enriching the floating agent to the surface of the solution; then, adding a filter aid into the saturated solution and then carrying out filtration, wherein the addition of the filter aid is 0.1-0.5% of the mass of the solution; after crystallizing the filtrate, separating and drying crystals to obtain potassium chloride without the floating agent. The method is reasonable and simple, convenient to operate, low in production cost, high in production capacity, and capable of effectively removing the floating agent out of the potassium chloride raw material in a production process of a food additive potassium chloride.
Description
Technical field
The present invention relates to a kind of production of foodstuff additive Repone K, particularly take flotation process Repone K in raw material production foodstuff additive Repone K process, the method for removing flotation agent in raw material Repone K.
Background technology
Repone K is white powder or colourless crystallization, and odorless, has saline taste, nontoxic, soluble in water.Repone K can be used as savory agent, accessory substance, the surrogate of excess salt being taken in order to suppress people, with salt equally as the seasonings of the varieties of food items such as agricultural production, aquatic products, livestock products, fermentation can, ready-to-eat.
Along with the development of medical science, authorities,medical personage recognizes that too much sodium easily causes that some patient's body fluid are detained, and causes the congested hypertension that produces of heart.The people such as walrei in 1979 studies have shown that blood pressure and potassium have remarkable relation.Nineteen eighty-two Anborsionl finds that high potassium can resist the hypertension effect that sodium causes.If hyperpietic gives potassium increased diet 120-127 milligramequivalent/day, on average step-down 3-10%.It is 1875-5652mg that U.S. food science and the nutrition council recommend the amount of per day for adults picked-up potassium for 1980, and the ratio of sodium and potassium is 1:1.7.In order to reduce the human body every day of the intake to sodium, the surrogate sales volume of edible salt is growing abroad at present.In recent years, Japan, Germany, the U.S. etc. all widely popularize Cardia Salt.Also there is recently the seasonings of various low-sodium and high-potassiums.
Along with domestic growth in the living standard, can be increasing to the demand of Cardia Salt, future will be over 500,000 tons by foodstuff additive Repone K demand for Cardia Salt.
In Repone K raw material production, take flotation process as main at present, the advantage of flotation process is to operate at normal temperatures, has reduced equipment corrosion, and flow process is simple, easily is automated, and energy consumption is low, and production cost is low.The flotation agent that flotation process adds is aliphatic amide etc., take stearylamine as main, and content is between 30-100ppm.
Stearylamine is white wax-like crystallization, 52.86 ℃ of fusing points, and 232 ℃ of boiling points, are very easily dissolved in chloroform, water insoluble, have the general character of amine, and this product low toxicity is irritant to skin and mucous membrane, and nervus centralis is had to certain hormesis.Foodstuff additive Repone K must not contain flotation agent, needs in process of production to remove flotation agent to guarantee quality product.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of method more reasonable, the method for flotation agent in Repone K of effectively removing in foodstuff additive KCl production process of strong operability.
Technical problem to be solved by this invention realizes by following technical scheme, the invention discloses a kind of method of removing flotation agent in Repone K, is characterized in, its step is as follows:
(1) by the Repone K raw material that contains flotation agent formation saturated solution soluble in water, make flotation agent be enriched to solution surface, solvent temperature is 20～110 ℃;
(2) in saturated solution, add flocculating aids then to filter, flocculating aids add-on is the 0.1-0.5% of saturated solution quality;
(3) filtrate is after crystallization, and crystal just obtains not containing the Repone K of flotation agent after separation, oven dry.
Technical problem to be solved by this invention is to realize by following technical scheme, and in the described method of removing flotation agent in Repone K, described flocculating aids is diatomite, activated carbon, vermiculite, perlite or carclazyte.
Technical problem to be solved by this invention is to realize by following technical scheme, and in the described method of removing flotation agent in Repone K, the be filtered into filtration of plate cabinet, bag type filtering, vacuum filtration, centrifuging or sand described in step (2) are filtered.
Technical problem to be solved by this invention is to realize by following technical scheme, in the described method of removing flotation agent in Repone K, the crystallization described in step (3) is Concentrated and crystallized in vacuum, normal pressure condensing crystal, crystallisation by cooling or concentrated crystallisation by cooling.
Compared with prior art, the inventive method is rationally simple, easy to operate, production cost is low, throughput is large, can effectively remove the flotation agent in Repone K raw material in foodstuff additive KCl production process, by method of the present invention, the flotation agent content in finished product Repone K can be reduced to 2ppm.
Embodiment
Below in conjunction with specific examples, the present invention will be described, and following embodiment is only for the present invention is described, and be not used in restriction the present invention scope required for protection.
Embodiment 1, a kind of method of removing flotation agent in Repone K, and its step is as follows: (1), by the Repone K raw material that contains flotation agent formation saturated solution soluble in water, solvent temperature is controlled at more than 100 ℃, makes flotation agent be enriched to solution surface;
(2) in saturated solution, add diatomite then to filter, diatomite add-on is 0.2% of saturated solution quality;
(3) filtrate is through crystallisation by cooling, centrifugation, and fluidized-bed is dried, and just obtains not the Repone K containing flotation agent.
Embodiment 2, a kind of method of removing flotation agent in Repone K, and its step is as follows:
(1) by the Repone K raw material that contains flotation agent formation saturated solution soluble in water, solvent temperature is 45-50 ℃, makes flotation agent be enriched to solution surface;
(2) in saturated solution, add activated carbon then to filter, activated carbon add-on is 0.3% of saturated solution quality;
(3) filtrate, through normal pressure evaporative crystallization, through separated post-drying, just obtains not containing the Repone K of flotation agent.
Embodiment 3, a kind of method of removing flotation agent in Repone K, and its step is as follows:
(1) by the Repone K raw material that contains flotation agent formation saturated solution soluble in water, solvent temperature is 30 ± 2 ℃, makes flotation agent be enriched to solution surface;
(2) in saturated solution, add perlite then to filter, perlite add-on is 0.4% of saturated solution quality;
(3) filtrate is after reduction vaporization crystallization, and crystal just obtains flotation agent content lower than the Repone K of 2ppm after separation, oven dry.
Embodiment 4, and according in the method for removing flotation agent in Repone K described in embodiment 1-3, described the be filtered into filtration of plate cabinet, bag type filtering, vacuum filtration, centrifuging or sand are filtered.
Claims (4)
1. a method of removing flotation agent in Repone K, is characterized in that: its step is as follows:
(1) by the Repone K raw material that contains flotation agent formation saturated solution soluble in water, solvent temperature is 20～110 ℃, makes flotation agent be enriched to solution surface;
(2) in saturated solution, add flocculating aids then to filter, flocculating aids add-on is the 0.1-0.5% of saturated solution quality;
(3) filtrate is after crystallization, and crystal just obtains not containing the Repone K of flotation agent after separation, oven dry.
2. method of removing flotation agent in Repone K according to claim 1, is characterized in that: described flocculating aids is diatomite, activated carbon, vermiculite, perlite or carclazyte.
3. method of removing flotation agent in Repone K according to claim 1, is characterized in that: the be filtered into filtration of plate cabinet, bag type filtering, vacuum filtration, centrifuging or sand described in step (2) are filtered.
4. method of removing flotation agent in Repone K according to claim 1, is characterized in that: the crystallization described in step (3) is Concentrated and crystallized in vacuum, normal pressure condensing crystal, crystallisation by cooling or concentrated crystallisation by cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410420105.2A CN104192867A (en) | 2014-08-25 | 2014-08-25 | Method for removing floating agent out of potassium chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410420105.2A CN104192867A (en) | 2014-08-25 | 2014-08-25 | Method for removing floating agent out of potassium chloride |
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| CN104192867A true CN104192867A (en) | 2014-12-10 |
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| CN201410420105.2A Pending CN104192867A (en) | 2014-08-25 | 2014-08-25 | Method for removing floating agent out of potassium chloride |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109123581A (en) * | 2018-07-22 | 2019-01-04 | 连云港树人科创食品添加剂有限公司 | A kind of preparation method of high-quality edible potassium chloride |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2473492A1 (en) * | 1980-01-10 | 1981-07-17 | Asahi Glass Co Ltd | PURIFICATION OF AQUEOUS POTASSIUM CHLORIDE SOLUTION CONTAINING ANTI-AGGLUTINATION REAGENT |
| CN1636875A (en) * | 2004-12-24 | 2005-07-13 | 刘晓曼 | Potassium chloride for injection and its prepn |
| CN101659429A (en) * | 2008-08-26 | 2010-03-03 | 天津市黎虹化工有限公司 | Process for producing potassium chloride with purity above 99 percent |
| CN101659428A (en) * | 2008-08-26 | 2010-03-03 | 天津市黎虹化工有限公司 | Process for producing high-purity potassium chloride |
-
2014
- 2014-08-25 CN CN201410420105.2A patent/CN104192867A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2473492A1 (en) * | 1980-01-10 | 1981-07-17 | Asahi Glass Co Ltd | PURIFICATION OF AQUEOUS POTASSIUM CHLORIDE SOLUTION CONTAINING ANTI-AGGLUTINATION REAGENT |
| CN1636875A (en) * | 2004-12-24 | 2005-07-13 | 刘晓曼 | Potassium chloride for injection and its prepn |
| CN101659429A (en) * | 2008-08-26 | 2010-03-03 | 天津市黎虹化工有限公司 | Process for producing potassium chloride with purity above 99 percent |
| CN101659428A (en) * | 2008-08-26 | 2010-03-03 | 天津市黎虹化工有限公司 | Process for producing high-purity potassium chloride |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109123581A (en) * | 2018-07-22 | 2019-01-04 | 连云港树人科创食品添加剂有限公司 | A kind of preparation method of high-quality edible potassium chloride |
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Application publication date: 20141210 |