CN101659430A - Process for producing purified potassium chloride - Google Patents
Process for producing purified potassium chloride Download PDFInfo
- Publication number
- CN101659430A CN101659430A CN200810054292A CN200810054292A CN101659430A CN 101659430 A CN101659430 A CN 101659430A CN 200810054292 A CN200810054292 A CN 200810054292A CN 200810054292 A CN200810054292 A CN 200810054292A CN 101659430 A CN101659430 A CN 101659430A
- Authority
- CN
- China
- Prior art keywords
- potassium chloride
- mother liquor
- repone
- cooling
- drying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Abstract
The invention discloses a process for producing purified potassium chloride. The process comprises the following steps: taking 50 grams of potassium chloride with a purity below 98 percent, mixing thepotassium chloride with water to obtain saturated potassium chloride solution, adding 10 percent of sodium hypochlorite solution to filter and remove heavy metals so as to obtain potassium chloride mother liquor, cooling and crystallizing the mother liquor in a cooling tank, drying the mother liquor by a drying machine to obtain potassium chloride crystal, and drying the potassium chloride crystal to obtain food-grade potassium chloride.
Description
Technical field
The present invention designs a kind of production technique of purified potassium chloride
Background technology
High purity chlorination potassium is the important source material of medicine and foodstuff additive, the content requirement of its Repone K reaches more than 99%, the most of manufacturing enterprise of China continues to use traditional thermosol cold crystallization technology always at present, the heat energy consumption of this explained hereafter Repone K is big, equipment corrosion is serious, need import equipment, so the cost height of product.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, a kind of purified potassium chloride production technique is provided.
Technical scheme of the present invention is: a kind of production technique of purified potassium chloride, get purity and be Repone K 50 grams below 98%, add water mix obtain saturated potassium chloride solution after, chlorine bleach liquor's after-filtration of adding 10% is removed heavy metal and is obtained the Repone K mother liquor, after mother liquor carried out crystallisation by cooling by cooling tank, dry by drier again and obtain potassium chloride, obtain food-grade potassium chloride through oven dry at last.
The present invention has the following advantages: pollution-free, rate of recovery height has reduced product cost.
Specific embodiment
Embodiment: a kind of production technique of purified potassium chloride, get purity and be Repone K 50 grams below 98%, add water mix obtain saturated potassium chloride solution after, chlorine bleach liquor's after-filtration of adding 10% is removed heavy metal and is obtained the Repone K mother liquor, after mother liquor carried out crystallisation by cooling by cooling tank, dry by drier again and obtain potassium chloride, obtain food-grade potassium chloride through oven dry at last.
Claims (1)
1, a kind of production technique of purified potassium chloride, it is characterized in that: get purity and be Repone K 50 grams below 98%, add water mix obtain saturated potassium chloride solution after, chlorine bleach liquor's after-filtration of adding 10% is removed heavy metal and is obtained the Repone K mother liquor, after mother liquor carried out crystallisation by cooling by cooling tank, dry by drier again and obtain potassium chloride, obtain food-grade potassium chloride through oven dry at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810054292A CN101659430A (en) | 2008-08-26 | 2008-08-26 | Process for producing purified potassium chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810054292A CN101659430A (en) | 2008-08-26 | 2008-08-26 | Process for producing purified potassium chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101659430A true CN101659430A (en) | 2010-03-03 |
Family
ID=41787715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810054292A Pending CN101659430A (en) | 2008-08-26 | 2008-08-26 | Process for producing purified potassium chloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101659430A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874847A (en) * | 2012-10-22 | 2013-01-16 | 益盐堂（应城）健康盐制盐有限公司 | Potassium-chloride product and preparation method thereof |
| CN109607573A (en) * | 2018-12-19 | 2019-04-12 | 青海盐湖工业股份有限公司 | A method of producing food-grade potassium chloride |
-
2008
- 2008-08-26 CN CN200810054292A patent/CN101659430A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102874847A (en) * | 2012-10-22 | 2013-01-16 | 益盐堂（应城）健康盐制盐有限公司 | Potassium-chloride product and preparation method thereof |
| CN102874847B (en) * | 2012-10-22 | 2014-06-04 | 益盐堂（应城）健康盐制盐有限公司 | Potassium-chloride product and preparation method thereof |
| CN109607573A (en) * | 2018-12-19 | 2019-04-12 | 青海盐湖工业股份有限公司 | A method of producing food-grade potassium chloride |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100303 |