CN105060315A - Method for producing food-grade potassium chloride by adopting adsorption process - Google Patents
Method for producing food-grade potassium chloride by adopting adsorption process Download PDFInfo
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- CN105060315A CN105060315A CN201510559322.4A CN201510559322A CN105060315A CN 105060315 A CN105060315 A CN 105060315A CN 201510559322 A CN201510559322 A CN 201510559322A CN 105060315 A CN105060315 A CN 105060315A
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Abstract
The invention discloses a method for producing food-grade potassium chloride by adopting an adsorption process. The method comprises steps such as dissolving, filtering, multilevel macroporous resin adsorption purification, active carbon adsorption, concentration crystallization, solid-liquid separation, drying and the like. Octadecylamine, dodecylmorpholine and Number 2 oil in the industrial potassium chloride are removed by virtue of adsorption purification of macroporous resin and active carbon, so that the purposes of purifying the industrial potassium chloride and producing the food-grade potassium chloride can be realized.
Description
Technical field
The present invention relates to and a kind ofly adopt the absorbing process method of industrial KCl production food-grade potassium chloride.
Background technology
Food-grade potassium chloride is edible potassium chloride again, is colourless elongated rhombus or cubic system or white crystalline powder, and odorless, taste be salty, soluble in water, be dissolved in glycerine, be slightly soluble in ethanol.It can be used as savory agent and nutritional supplement with Some substitute salt, prevents people's Excess free enthalpy salt.In addition, Repone K is the same with salt be can be used in the food such as agricultural-food, fishery products, livestock product, fermentation, seasoning, can, ready-to-eat, can be added in proportion in various food, indispensable effect is played to food tissue state, color, smell and taste and food raw material cost control.
Along with China's sustain economic increases rapidly, for food-grade potassium chloride product provides the huge market space.Present stage food-grade potassium chloride production method for purify industrial potassium chloride.Stearylamine, dodecyl morpholine and 2# wet goods flotation agent is contained in the technical grade Repone K prepared by flotation crystallization process, in existing technology, the method removing flotation agent increases coagulant aids, then filter, filtrate is separated after crystallization, drying obtains not containing the Repone K of flotation agent, though but the Repone K obtained is not containing flotation agent, adds coagulant aids, cannot meet the requirement of food-grade potassium chloride.
Summary of the invention
The object of the present invention is to provide a kind of method adopting absorbing process to produce food-grade potassium chloride, effectively can remove stearylamine, dodecyl morpholine, 2# wet goods flotation agent organism, meet the requirement of food-grade potassium chloride.
Whole flow process of the present invention comprises the operations such as dissolving, filtration, multistage macroporous resin adsorption purifying, charcoal absorption, condensing crystal, solid-liquid separation, drying, by macroporous resin adsorption purifying, associating gac removes stearylamine, dodecyl morpholine and the 2# oil in industrial potassium chloride, thus reach purified industrial Repone K, produce the object of food-grade potassium chloride.
Technical scheme of the present invention is: a kind of method adopting absorbing process to produce food-grade potassium chloride, comprises the following steps:
A) dissolve: at room temperature, technical grade solid potassium chloride is dissolved as Klorvess Liquid;
B) filter: in Klorvess Liquid, add auxiliary agent A carry out being obtained by reacting containing sedimentary Repone K crude product solution, will filter through strainer containing sedimentary Repone K crude product solution, and filter throw out, obtain Repone K primary solution I;
C) multistage macroporous resin adsorption purifying: by step b) in the Repone K primary solution I that obtains be diluted to 5% ~ 20% after upper prop absorption, the Repone K primary solution II of the stearylamine that is removed;
D) charcoal absorption: by step c) in the Repone K primary solution II that obtains by charcoal absorption, remove the dodecyl morpholine in Repone K primary solution II and 2# oil, obtain Repone K refined soln;
E) condensing crystal: by steps d) in the Repone K refined soln that obtains carry out acid adjustment neutralizing treatment, add in acid adjustment process after auxiliary agent B makes Repone K refined soln be adjusted to neutral solution and carry out concentration, then carry out crystallization through crystallizer;
F) solid-liquid separation: by steps d) in Repone K after crystallization through solid-liquid separation, obtain the refined potassium chloride wet;
G) dry: by step e) in be separated the wet refined potassium chloride that obtains after super-dry, obtain purified diet grade potassium chloride.
Wherein auxiliary agent A is one or several mixture of food grade potassium hydroxide or salt of wormwood or potassium sulfate.
Wherein auxiliary agent B is food grade citric acid or lactic acid.
The production difference that the present invention compares increases coagulant aids is, removes stearylamine, dodecyl morpholine and the 2# oil in industrial potassium chloride mainly through macroporous resin purification associating charcoal absorption.In whole flow process, macroporous resin and gac are by physical adsorption adsorb organic compound and impurity selectively from solution, thus reach the object of separating-purifying.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment
As shown in Figure 1, a kind of method adopting absorbing process to produce food-grade potassium chloride, concrete point following steps are implemented:
A) dissolve: at room temperature, technical grade solid potassium chloride is dissolved as Klorvess Liquid;
B) filter: one or several mixture adding food grade potassium hydroxide or salt of wormwood or potassium sulfate in Klorvess Liquid, allow other impurity such as a small amount of calcium ion, magnesium ion or barium ion in itself and industrial potassium chloride react, after reaction, obtain the throw outs such as calcium carbonate, magnesium sulfate or barium sulfate; To filter through strainer containing sedimentary Repone K crude product solution, and filter throw out, obtain Repone K primary solution I;
C) multistage macroporous resin adsorption purifying: by step b) in the Repone K primary solution that obtains be diluted to 5% ~ 20%, Repone K primary solution I upper prop of 5% ~ 20% is adsorbed, obtains Repone K primary solution II.Stearylamine in macroporous resin adsorption process in primary attachment Repone K primary solution I, the Repone K primary solution II of the stearylamine that is removed;
D) charcoal absorption: by step c) in the Repone K primary solution II (effluent liquid flowed out by macroporous resin) that obtains pass through charcoal absorption, remove the dodecyl morpholine in Repone K primary solution II and 2# oil, obtain the Klorvess Liquid refined;
E) condensing crystal: by steps d) in the Repone K refined soln that obtains carry out acid adjustment neutralizing treatment, food grade citric acid is added or lactic acid makes Repone K refined soln be adjusted to neutral solution in acid adjustment process, after neutral Repone K refined soln is carried out concentration, carry out crystallization through crystallizer;
F) solid-liquid separation: by steps d) in Repone K after crystallization through solid-liquid separation, obtain the refined potassium chloride wet;
G) dry: by step e) in be separated the wet refined potassium chloride that obtains after super-dry, obtain purified diet grade potassium chloride.
Claims (3)
1. adopt absorbing process to produce a method for food-grade potassium chloride, it is characterized in that comprising the following steps:
A) dissolve: at room temperature, technical grade solid potassium chloride is dissolved as Klorvess Liquid;
B) filter: in Klorvess Liquid, add auxiliary agent A carry out being obtained by reacting containing sedimentary Repone K crude product solution, will filter through filter containing sedimentary Repone K crude product solution, and filter throw out, obtain Repone K primary solution I;
C) multistage macroporous resin adsorption purifying: by step b) in the Repone K primary solution I that obtains be diluted to 5% ~ 20% after upper prop absorption, the Repone K primary solution II of the stearylamine that is removed;
D) charcoal absorption: by step c) in the Repone K primary solution II that obtains by charcoal absorption, remove the dodecyl morpholine in Repone K primary solution II and 2# oil, obtain Repone K refined soln;
E) condensing crystal: by steps d) in the Repone K refined soln that obtains carry out acid adjustment neutralizing treatment, add in acid adjustment process after auxiliary agent B makes Repone K refined soln be adjusted to neutral solution and carry out concentration, then carry out crystallization through crystallizer;
F) solid-liquid separation: by steps d) in Repone K after crystallization through solid-liquid separation, obtain the refined potassium chloride wet;
G) dry: by step e) in be separated the wet refined potassium chloride that obtains after super-dry, obtain purified diet grade potassium chloride.
2. the method adopting absorbing process to produce food-grade potassium chloride as claimed in claim 1, it is characterized in that, auxiliary agent A is one or several mixture of food grade potassium hydroxide or salt of wormwood or potassium sulfate.
3. the method adopting absorbing process to produce food-grade potassium chloride as claimed in claim 1, it is characterized in that, auxiliary agent B is food grade citric acid or lactic acid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510559322.4A CN105060315A (en) | 2015-09-06 | 2015-09-06 | Method for producing food-grade potassium chloride by adopting adsorption process |
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| CN201510559322.4A CN105060315A (en) | 2015-09-06 | 2015-09-06 | Method for producing food-grade potassium chloride by adopting adsorption process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495189A (en) * | 2016-11-28 | 2017-03-15 | 江苏润普食品科技股份有限公司 | A kind of production method of high-purity food-grade potassium chloride |
| WO2017106097A1 (en) * | 2015-12-18 | 2017-06-22 | S & P Ingredient Development, Llc | Processing potassium chloride |
| 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 |
| CN109160525A (en) * | 2018-11-09 | 2019-01-08 | 青海民族大学 | A kind of adsorptive purification processes of industrial potassium chloride |
| CN109850919A (en) * | 2019-04-01 | 2019-06-07 | 南京简迪环境工程有限公司 | A kind of technique that recycling refines potassium chloride in organic chemical waste water |
| CN110386610A (en) * | 2018-04-23 | 2019-10-29 | 格尔木藏格锂业有限公司 | The production method of food-grade potassium chloride |
| CN110498431A (en) * | 2019-08-13 | 2019-11-26 | 广州怡和生物科技有限公司 | A kind of preparation method of high-purity spherical shape potassium chloride |
-
2015
- 2015-09-06 CN CN201510559322.4A patent/CN105060315A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017106097A1 (en) * | 2015-12-18 | 2017-06-22 | S & P Ingredient Development, Llc | Processing potassium chloride |
| CN106495189A (en) * | 2016-11-28 | 2017-03-15 | 江苏润普食品科技股份有限公司 | A kind of production method of high-purity food-grade potassium chloride |
| CN110386610A (en) * | 2018-04-23 | 2019-10-29 | 格尔木藏格锂业有限公司 | The production method of food-grade potassium chloride |
| 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 |
| CN109160525A (en) * | 2018-11-09 | 2019-01-08 | 青海民族大学 | A kind of adsorptive purification processes of industrial potassium chloride |
| CN109160525B (en) * | 2018-11-09 | 2020-11-27 | 青海民族大学 | Adsorption purification method of industrial potassium chloride |
| CN109850919A (en) * | 2019-04-01 | 2019-06-07 | 南京简迪环境工程有限公司 | A kind of technique that recycling refines potassium chloride in organic chemical waste water |
| CN110498431A (en) * | 2019-08-13 | 2019-11-26 | 广州怡和生物科技有限公司 | A kind of preparation method of high-purity spherical shape potassium chloride |
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