CN1061763A - A kind of production zinc chloride novel process - Google Patents
A kind of production zinc chloride novel process Download PDFInfo
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- CN1061763A CN1061763A CN 90109674 CN90109674A CN1061763A CN 1061763 A CN1061763 A CN 1061763A CN 90109674 CN90109674 CN 90109674 CN 90109674 A CN90109674 A CN 90109674A CN 1061763 A CN1061763 A CN 1061763A
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- zinc chloride
- zinc
- novel process
- deironing
- sulfate radical
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Abstract
The present invention is to producing the improvement of zinc chloride technology.This technology is as follows: (1) is with the useless zinc material of dissolving with hydrochloric acid; (2) oxygenant is added deironing in the above-mentioned solution, add bariumchloride (or barium carbonate) sulfate radical simultaneously; (3) add zinc dust precipitation reaction removing heavy metals; (4) filter liquid zinc chloride.This novel process as oxygenant, improves the zinc chloride rate of recovery of novel process with the potassium permanganate in the hydrogen peroxide replacement traditional technology greatly, and improves production rate and output and quality.
Description
The present invention relates to a kind of technology of improved production zinc chloride.
Usually utilize useless zinc material production raw material that zinc chloride adopted to comprise: 1, useless zinc material (for example useless zinc gray, cadmia, zinc tankage); 2, hydrochloric acid; 3, potassium permanganate; 4, a small amount of zinc powder.Its production technique is as follows: 1, extremely saturated with the useless zinc material of dissolving with hydrochloric acid, generate zinc chloride, water and impurity (iron protochloride, sulfate radical, heavy metal etc.); 2, potassium permanganate is added deironing in the above-mentioned solution, add bariumchloride (or barium carbonate) sulfate radical simultaneously; 3, zinc powder is added replacement(metathesis)reaction removing heavy metals in the solution behind above-mentioned deironing and the sulfate radical; 4, get liquid end product zinc chloride (if reconcentration gets solid finished product zinc chloride) after the filtration.The shortcoming of using above-mentioned explained hereafter zinc chloride is: the many and one-tenth pasty state of sediment during with the potassium permanganate deironing, cause filtration difficulty.The zinc chloride rate of recovery is low; 2, more to displacement zinc powder that removing heavy metals consumes, the time is also longer; 3, final product quality difference and product cost height.
The objective of the invention is to provide a kind of novel process of improved production zinc chloride at the shortcoming of above-mentioned production technique.
This novel process is produced the raw material that zinc chloride adopted and is comprised: 1, useless zinc material (for example useless zinc gray, cadmia, zinc tankage); 2, hydrochloric acid; 3, hydrogen peroxide (superoxol); 4, a small amount of zinc powder.Its production technique is as follows: 1, extremely saturated with the useless zinc material of dissolving with hydrochloric acid, generate zinc chloride, water and impurity (iron protochloride, sulfate radical, heavy metal etc.); 2, hydrogen peroxide is added deironing in the above-mentioned solution, add bariumchloride (or barium carbonate) sulfate radical simultaneously; 3, zinc powder is added replacement(metathesis)reaction removing heavy metals in the solution behind above-mentioned deironing and the sulfate radical; 4, get the liquid end product zinc chloride after the filtration.
Replace the major advantage of potassium permanganate deironing as follows with hydrogen peroxide:
With useless zinc material with amount, the hydrogen peroxide deironing reduces more than 50% than its sediment of potassium permanganate deironing, the zinc chloride liquid rate of recovery exceeds 10～15%, when reason is the potassium permanganate deironing, potassium permanganate is oxidized to iron the ferric while and also generates non-setting bivalent manganese muriate in the acidic solution body, so need to use than constant more and exceed the oxide compound that one times potassium permanganate is oxidized to bivalent manganese in tetravalence manganese, and precipitation is separated out, in addition, because sediment is many, filtration velocity is slow, and the tetravalence Mn oxide that causes partly precipitated to separate out is dissolved in and generates non-setting bivalent manganese muriate in the solution, need to repeat precipitation with potassium permanganate again and separate out Manganse Dioxide, cause vicious cycle.During with the hydrogen peroxide deironing, in the hydrogen peroxide adding acidic solution ferrous iron muriate is oxidized to ferric oxide, and precipitation is separated out, meanwhile produce hydrochloric acid and hypochlorous acid, because of causing acidity excessive, make ferrous iron can't complete oxidation and precipitation separate out, but when adding in a small amount zinc powder and constantly during stirring, generate zinc chloride and reduced solution acidity, make ferrous iron can all be oxidized to ferric iron and precipitate and separate out.Thus, replace the potassium permanganate deironing with hydrogen peroxide in the novel process, because sediment reduces, zinc chloride liquid rate of recovery height, thereby greatly reduce product cost, and improved production rate and quality product.
Claims (1)
1, a kind of production zinc chloride novel process: (1) to saturated, generates zinc chloride, water and impurity (iron protochloride, sulfate radical, heavy metal) with the useless zinc material of dissolving with hydrochloric acid; (2) oxygenant is added deironing in the above-mentioned solution, add bariumchloride (or barium carbonate) sulfate radical simultaneously; (3) zinc powder is added replacement(metathesis)reaction removing heavy metals in the solution behind above-mentioned deironing and the sulfate radical; (4) the liquid end product zinc chloride that gets after the filtration; The invention is characterized in that above-mentioned oxygenant is hydrogen peroxide (hydrogen peroxide).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90109674 CN1061763A (en) | 1990-11-27 | 1990-11-27 | A kind of production zinc chloride novel process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90109674 CN1061763A (en) | 1990-11-27 | 1990-11-27 | A kind of production zinc chloride novel process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1061763A true CN1061763A (en) | 1992-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90109674 Pending CN1061763A (en) | 1990-11-27 | 1990-11-27 | A kind of production zinc chloride novel process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1061763A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371251C (en) * | 2004-10-26 | 2008-02-27 | 鞠其祥 | Liquid zinc chloride production process |
| CN1952217B (en) * | 2005-10-18 | 2010-09-22 | 葛勇智 | Process for applying waste and old zinc to continuous zinc coating of steel plate |
| CN102352439A (en) * | 2011-07-18 | 2012-02-15 | 株洲冶炼集团股份有限公司 | Method of producing zinc chloride and aluminum chloride by using waste zinc-aluminum alloy |
| CN102659173A (en) * | 2012-05-16 | 2012-09-12 | 复旦大学 | Preparation method of battery-grade zinc bromide |
| CN103820644A (en) * | 2014-03-20 | 2014-05-28 | 重庆大学 | Method for extracting zinc chloride from pharmaceutical waste liquid of vitamin E |
| CN105776318A (en) * | 2014-12-19 | 2016-07-20 | 上海飞凯光电材料股份有限公司 | Preparation method of high-purity zinc halide |
| CN105858963A (en) * | 2016-05-16 | 2016-08-17 | 中盐金坛盐化有限责任公司 | Method for removing iron ions from sodium sulfate type brine |
-
1990
- 1990-11-27 CN CN 90109674 patent/CN1061763A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371251C (en) * | 2004-10-26 | 2008-02-27 | 鞠其祥 | Liquid zinc chloride production process |
| CN1952217B (en) * | 2005-10-18 | 2010-09-22 | 葛勇智 | Process for applying waste and old zinc to continuous zinc coating of steel plate |
| CN102352439A (en) * | 2011-07-18 | 2012-02-15 | 株洲冶炼集团股份有限公司 | Method of producing zinc chloride and aluminum chloride by using waste zinc-aluminum alloy |
| CN102659173A (en) * | 2012-05-16 | 2012-09-12 | 复旦大学 | Preparation method of battery-grade zinc bromide |
| CN103820644A (en) * | 2014-03-20 | 2014-05-28 | 重庆大学 | Method for extracting zinc chloride from pharmaceutical waste liquid of vitamin E |
| CN103820644B (en) * | 2014-03-20 | 2015-05-13 | 重庆大学 | Method for extracting zinc chloride from pharmaceutical waste liquid of vitamin E |
| CN105776318A (en) * | 2014-12-19 | 2016-07-20 | 上海飞凯光电材料股份有限公司 | Preparation method of high-purity zinc halide |
| CN105858963A (en) * | 2016-05-16 | 2016-08-17 | 中盐金坛盐化有限责任公司 | Method for removing iron ions from sodium sulfate type brine |
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