CN106219489A - The processing method of produced waste water during being prepared ferrum oxide by steel mill's pickle liquor - Google Patents
The processing method of produced waste water during being prepared ferrum oxide by steel mill's pickle liquor Download PDFInfo
- Publication number
- CN106219489A CN106219489A CN201610555982.XA CN201610555982A CN106219489A CN 106219489 A CN106219489 A CN 106219489A CN 201610555982 A CN201610555982 A CN 201610555982A CN 106219489 A CN106219489 A CN 106219489A
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- CN
- China
- Prior art keywords
- waste water
- steel mill
- pickle liquor
- ferrum oxide
- oxide
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- 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.)
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/03—Preparation from chlorides
- C01B7/035—Preparation of hydrogen chloride from chlorides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/026—Preparation of ammonia from inorganic compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Compounds Of Iron (AREA)
Abstract
The invention discloses a kind of prepared ferrum oxide by steel mill's pickle liquor during the processing method of produced waste water, comprise the steps: the waste water that the weight/mass percentage composition of the ammonium chloride (1) produced during being prepared ferrum oxide by steel mill's pickle liquor is 3% 20% adds magnesium oxide as distintegrant, waste water is 100mL:1.12g 71g with the ratio of magnesium oxide, ammonia is steamed at 100 130 DEG C of reaction 1 5h, obtaining concentrated solution, described ammonia water absorbs；(2) at 200 450 DEG C, concentrated solution being reacted 1 5h, discharge hydrogen chloride and water, solid is basic magnesium chloride.The method of the present invention utilize steel mill's pickle liquor to prepare ferrum oxide during produced waste water, prepare ammonia and hydrogen chloride, reached the recycling treatment turned waste into wealth, environmental protection.The method process time of this method is short, and simple to operate, energy consumption is low, strong operability, and condition controls relatively easy, it is adaptable to industrialized great production.
Description
Technical field
The present invention relates to a kind of is the resource producing waste water during ferrum oxide prepared by raw material by steel mill's pickle liquor
Processing method.
Background technology
Pickling is one requisite step of steel industry, and it is a kind of process for treating surface, in this technical process
Produce a large amount of rich in Fe2+Spent acid, if the most treated, environment is not only polluted with regard to direct discharge, also can cause the waste of resource.
To this end, this seminar have developed the method utilizing iron and steel pickling waste liquid to prepare iron pigment, turn waste into wealth, well solve
Pickle liquor this difficult problem intractable.But, in the filtration and washing process of final products, can produce a large amount of containing NH4Cl
Waste water, do not meet country produce waste water discharge standard, and then constrain iron and steel pickling waste liquid prepare iron pigment industry
Development.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that one is prepared ferrum oxide process by steel mill's pickle liquor
The processing method of middle produced waste water.
Technical scheme is summarized as follows:
A kind of prepared ferrum oxide by steel mill's pickle liquor during the processing method of produced waste water, comprise the steps:
(1) weight/mass percentage composition of the ammonium chloride produced during being prepared ferrum oxide by steel mill's pickle liquor be 3%～
The waste water of 20% adds magnesium oxide as distintegrant, the ratio of described waste water and magnesium oxide be 100mL:1.12g～
71g, steams ammonia 100～130 DEG C of reactions 1～5h, obtains concentrated solution, and described ammonia water absorbs；
(2) at 200～450 DEG C, concentrated solution being reacted 1～5h, discharge hydrogen chloride and water, solid is basic magnesium chloride.
Described magnesium oxide is magnesium oxide (MgO), magnesium hydroxide (Mg (OH)2) or basic magnesium chloride (Mg (OH) Cl).
Advantages of the present invention: the method for the present invention utilize steel mill's pickle liquor to prepare ferrum oxide during produced waste water, system
Standby ammonia and hydrogen chloride, reached the recycling treatment turned waste into wealth, environmental protection.It is short that the method for this method processes the time, behaviour
Making simple, energy consumption is low, strong operability, and condition controls relatively easy, it is adaptable to industrialized great production.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further illustrated, and the following examples are in order to make this area
Technical staff better understood when the present invention, but does not impose any restrictions the present invention.
Embodiment 1
A kind of prepared ferrum oxide by steel mill's pickle liquor during the processing method of produced waste water, comprise the steps:
(1) weight/mass percentage composition of the ammonium chloride produced during being prepared ferrum oxide by steel mill's pickle liquor is 10%
In waste water, addition magnesium hydroxide is as distintegrant, and described waste water is 100mL:16g with the ratio of magnesium hydroxide, 120 DEG C of reactions
3h steams ammonia, obtains concentrated solution, and described ammonia water absorbs (ammonia productivity 73%)；
(2) at 320 DEG C, concentrated solution being reacted 3h, discharge hydrogen chloride and water, solid is basic magnesium chloride.
The response rate of basic magnesium chloride is 58%.
Embodiment 2
A kind of prepared ferrum oxide by steel mill's pickle liquor during the processing method of produced waste water, comprise the steps:
(1) weight/mass percentage composition of the ammonium chloride produced during being prepared ferrum oxide by steel mill's pickle liquor is 3%
Adding magnesium oxide in waste water as distintegrant, described waste water is 100mL:1.12g with the ratio of magnesium oxide, reacts 5h at 100 DEG C
Steaming ammonia, obtain concentrated solution, described ammonia water absorbs (ammonia productivity is 67%)；
(2) at 200 DEG C, concentrated solution being reacted 5h, discharge hydrogen chloride and water, solid is basic magnesium chloride.Basic magnesium chloride
The response rate be 68%.
Embodiment 3
A kind of prepared ferrum oxide by steel mill's pickle liquor during the processing method of produced waste water, comprise the steps:
(1) weight/mass percentage composition of the ammonium chloride produced during being prepared ferrum oxide by steel mill's pickle liquor is 20%
In waste water, addition basic magnesium chloride is as distintegrant, and described waste water is 100mL:71g with the ratio of basic magnesium chloride, at 130 DEG C
Reaction 1h steams ammonia, obtains concentrated solution, and described ammonia water absorbs (ammonia productivity is 75%)；
(2) at 450 DEG C, concentrated solution being reacted 1h, discharge hydrogen chloride and water, solid is basic magnesium chloride.
The response rate of basic magnesium chloride is 83%.Basic magnesium chloride recycles again.
Claims (2)
1. a processing method for produced waste water during being prepared ferrum oxide by steel mill's pickle liquor, is characterized in that including walking as follows
Rapid:
(1) weight/mass percentage composition of the ammonium chloride produced during being prepared ferrum oxide by steel mill's pickle liquor is 3%～20%
Waste water in add magnesium oxide as distintegrant, described waste water is 100mL:1.12g～71g with the ratio of magnesium oxide,
100～130 DEG C of reactions 1～5h steam ammonia, obtain concentrated solution, and described ammonia water absorbs；
(2) at 200～450 DEG C, concentrated solution being reacted 1～5h, discharge hydrogen chloride and water, solid is basic magnesium chloride.
Method the most according to claim 1, is characterized in that described magnesium oxide is magnesium oxide, magnesium hydroxide or alkali formula chlorination
Magnesium.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610555982.XA CN106219489A (en) | 2016-07-15 | 2016-07-15 | The processing method of produced waste water during being prepared ferrum oxide by steel mill's pickle liquor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610555982.XA CN106219489A (en) | 2016-07-15 | 2016-07-15 | The processing method of produced waste water during being prepared ferrum oxide by steel mill's pickle liquor |
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| CN106219489A true CN106219489A (en) | 2016-12-14 |
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| CN201610555982.XA Pending CN106219489A (en) | 2016-07-15 | 2016-07-15 | The processing method of produced waste water during being prepared ferrum oxide by steel mill's pickle liquor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032409A (en) * | 2017-04-24 | 2017-08-11 | 长沙兴嘉生物工程股份有限公司 | A kind of preparation method of alkali formula manganese chloride |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087062A (en) * | 1992-11-20 | 1994-05-25 | 张智新 | Decomposition process for ammonium chloride |
| EP0619268B1 (en) * | 1993-04-08 | 1997-05-21 | CT Umwelttechnik AG | Process and installation for the production of hydrogen chloride from chlorine containing waste |
| CN1504413A (en) * | 2002-12-03 | 2004-06-16 | 杨文斌 | Reclamation process for waste water of rare earth extraction separation |
| CN101993098A (en) * | 2010-11-23 | 2011-03-30 | 中国科学院过程工程研究所 | Method for preparing high-purity magnesium oxide from nesquehonite by carbon-ammonia recycle method |
| CN102942237A (en) * | 2012-11-15 | 2013-02-27 | 天津市鑫昌科技有限公司 | Preparation method for water purifier capable of synchronously removing ammonia nitrogen and phosphorus in waste water |
| CN105217693A (en) * | 2015-08-26 | 2016-01-06 | 昆明理工大学 | A kind of method preparing iron oxide yellow and ammonium chloride |
-
2016
- 2016-07-15 CN CN201610555982.XA patent/CN106219489A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087062A (en) * | 1992-11-20 | 1994-05-25 | 张智新 | Decomposition process for ammonium chloride |
| EP0619268B1 (en) * | 1993-04-08 | 1997-05-21 | CT Umwelttechnik AG | Process and installation for the production of hydrogen chloride from chlorine containing waste |
| CN1504413A (en) * | 2002-12-03 | 2004-06-16 | 杨文斌 | Reclamation process for waste water of rare earth extraction separation |
| CN101993098A (en) * | 2010-11-23 | 2011-03-30 | 中国科学院过程工程研究所 | Method for preparing high-purity magnesium oxide from nesquehonite by carbon-ammonia recycle method |
| CN102942237A (en) * | 2012-11-15 | 2013-02-27 | 天津市鑫昌科技有限公司 | Preparation method for water purifier capable of synchronously removing ammonia nitrogen and phosphorus in waste water |
| CN105217693A (en) * | 2015-08-26 | 2016-01-06 | 昆明理工大学 | A kind of method preparing iron oxide yellow and ammonium chloride |
Non-Patent Citations (2)
| Title |
|---|
| 张林生: "机械工业废水处理技术及典型工程", 《机械工业废水处理技术及典型工程》 * |
| 李东光: "金属表面处理剂配方手册", 《金属表面处理剂配方手册》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032409A (en) * | 2017-04-24 | 2017-08-11 | 长沙兴嘉生物工程股份有限公司 | A kind of preparation method of alkali formula manganese chloride |
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Application publication date: 20161214 |