CN106146104A - Hopcalite agent waste liquid prepares the method for chemical fertilizer - Google Patents
Hopcalite agent waste liquid prepares the method for chemical fertilizer Download PDFInfo
- Publication number
- CN106146104A CN106146104A CN201610707706.0A CN201610707706A CN106146104A CN 106146104 A CN106146104 A CN 106146104A CN 201610707706 A CN201610707706 A CN 201610707706A CN 106146104 A CN106146104 A CN 106146104A
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- China
- Prior art keywords
- fertilizer
- liquid
- waste liquid
- potassium sulfate
- chemical fertilizer
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Classifications
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a kind of method that hopcalite agent waste liquid prepares chemical fertilizer, this preparation method prepares liquid fertilizer by adding the method for ammonia in liquid dilute sulfuric acid and fluid sulphuric acid potassium waste liquid, the present invention well solves the potential problem of waste liquor contamination environment, the chemical fertilizer made, serving agriculture produces (including flower plant), turn waste into wealth, benefit the nation and the people, add new income for enterprise again.
Description
Technical field
The present invention relates to the production method of a kind of chemical fertilizer, especially relate to a kind of hopcalite agent waste liquid and prepare the side of chemical fertilizer
Method.
Background technology
It is known that substantial amounts of waste liquid can be produced during preparing hopcalite agent, because the production of hopcalite agent
Process early stage is mainly chemical reaction, during will produce liquid dilute sulfuric acid and fluid sulphuric acid potassium, and the mixing of sodium sulphate is given up
Liquid.Its processing mode is:
1. vitriolated waste liquid is neutralized with alkaline matter, as added soda ash:
H2SO4(dilute)+Na2CO3=Na2SO4+H2O+CO2↑
Potassium sulfate has been that neutral salt is not involved in reaction.
Waste liquid after neutralization is neutrality, and main matter is potassium sulfate+sodium sulphate mixing liquid.
2. in waste liquid, add substantial amounts of running water, dilution waste liquid (potassium sulfate+sodium sulphate), when salt in waste liquid (potassium sulfate,
Sodium sulphate mixed liquor) content little when, outside waste liquid arrange.
Note 1: waste liquid now, one is that salt content is very low, does not has recovery value；Two is that fluid sulphuric acid potassium, sodium sulphate are difficult to
Separating, separation costs is very high.
Note 2: arrange outside the waste liquid after dilution, surface meets environmental requirement, and actual have potential hazard to environment.Waste liquid enters certainly
After right environment, with the evaporation of moisture, salt concentration improves, ultimately forms salt-soda soil.
Content of the invention
For solving above-mentioned technical problem, the present invention provides one to meet environmental requirement, can turn waste into wealth again simultaneously, refuse
The method that the hopcalite agent waste liquid utilizing prepares chemical fertilizer.
The present invention solves above-mentioned technical problem and the technical scheme is that
Hopcalite agent waste liquid prepares the method for chemical fertilizer, it is characterised in that this preparation method step is as follows:
1., import the mixed liquor containing sulfuric acid, potassium sulfate in retort (1)；
2., open ammonia inlet valve (6), add ammonia in waste liquid, carry out chemical reaction, generate ammonium sulfate, and see
Examine pH value detecting system；
3., observing pH value detecting system, as PH=7, closing ammonia inlet valve (6), potassium sulfate is at saturated sulfuric acid
Crystallization in ammonium, potassium sulfate content ＜ 1%, obtain the fluid sulphuric acid ammonium containing about 40% and the ammoniacal liquor containing 50-58% as liquid
Body nitrogen product；
4. add the running water that monoploid is long-pending, dilute sulphuric acid ammonium liquid after, 3. step completes the, be allowed to unsaturated, sulfuric acid
Potassium dissolves, and obtaining liquid becomes ammonium sulfate, ammoniacal liquor and potassium sulfate as liquid nitrogen fertilizer, potash fertilizer complex fertilizer product.
Using technique scheme, the technological progress that the present invention obtains is: through research practice for many years, the applicant exists
Apply for equipment for separating liquid from solid in March, 2015 and produce the method patent of invention of hopcalite agent, Patent No.:
ZL201510095756.3, has authorized, and by the production technology of this patent of invention, has extracted the dilute sulfuric acid of high concentration respectively
With potassium sulfate mixed solution, and the metabisulfite solution of high concentration.This patent is the dilute sulfuric acid and sulfuric acid to high concentration therein
The process of potassium mixed solution is prepared as chemical fertilizer, well solves the potential problem of waste liquor contamination environment, takes for treasured, system with time-varying
Becoming chemical fertilizer, serving agriculture produces (including flower plant), i.e. benefits the nation and the people and adds new income for enterprise.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the process units structural representation of the present invention.
In figure, 1-retort, 2-waste liquid, 3-waste liquid entrance, 4-waste liquid inlet valve, 5-ammonia entrance, 6-ammonia entrance
Valve, 7-liquid composite fertilizer exports, 8-liquid composite fertilizer outlet valve, 9-PH value test system, 10-water inlet, 11-water inlet
Valve.
The 1st, this device is arranged in retort 1 ammonia being controlled by ammonia inlet valve 6 by being loaded with the retort of waste liquid 2
The 5th, entrance is arranged on and the 3rd, is arranged on sidewall bottom retort 1 is passed through by the waste liquid entrance of waste liquid inlet valve 4 control in retort 1
The pH value that the liquid composite fertilizer outlet 7 of liquid composite fertilizer outlet valve 8 control is arranged in retort 1 is tested system 9 and arranges
Being constituted by the water inlet 10 that water inlet valve 11 controls in retort 1.PH value test system 9 can be pH value test paper or
The commercially available pH value analyzer of person.
Hopcalite agent waste liquid produces fertilizer materials and process:
1st, waste liquid production chemical fertilizer principle:
The main chemical compositions of waste liquid is dilute sulfuric acid (accounting for 30% content), potassium sulfate (accounting for 15～20% content),
Waste liquid adds ammonia (NH3), sulfuric acid and ammonia react production ammonium sulfate；Potassium sulfate is not involved in reaction.
H2SO4+2NH3=(NH4)2SO4
2nd, waste liquid production chemical fertilizer process:
1. import the mixed liquor containing sulfuric acid, potassium sulfate in retort；
2. open ammonia valve, add ammonia in waste liquid, carry out chemical reaction, generate ammonium sulfate.And observe pH value inspection
Examining system.
3. observe pH value detecting system, as PH=7, close ammonia valve.Now liquid be mainly composed of liquid sulfur
Acid ammonium (containing about 40%)+ammoniacal liquor (containing 50～58%)；Can sell as liquid nitrogen fertilizer product product 1.
4. add the running water that monoploid is long-pending, dilute sulphuric acid ammonium liquid after 3. step completes the, be allowed to unsaturated, potassium sulfate
Dissolve.Now liquid component is mainly ammonium sulfate, ammoniacal liquor and potassium sulfate；Can be as liquid nitrogen fertilizer, potash fertilizer, i.e. composite fertilizer produces
Product product 2 is sold.
Claims (2)
1. the method that hopcalite agent waste liquid prepares chemical fertilizer, it is characterised in that this preparation method step is as follows:
1., import the mixed liquor containing sulfuric acid, potassium sulfate in retort (1)；
2., open ammonia inlet valve (6), add ammonia in waste liquid, carry out chemical reaction, generate ammonium sulfate, and observe PH
Value detecting system；
3., observing pH value detecting system, as PH=7, closing ammonia inlet valve (6), potassium sulfate is in saturated ammonium sulfate
Crystallization, potassium sulfate content ＜ 1%, obtain the fluid sulphuric acid ammonium containing about 40% and the ammoniacal liquor containing 50-58% as liquid nitrogen
Fertilizer product；
4. adding the running water that monoploid is long-pending, dilute sulphuric acid ammonium liquid after, 3. step completes the, being allowed to unsaturated, potassium sulfate is molten
Solving, obtaining liquid becomes ammonium sulfate, ammoniacal liquor and potassium sulfate as liquid nitrogen fertilizer, potash fertilizer complex fertilizer product.
2. hopcalite agent waste liquid according to claim 1 produces the method for chemical fertilizer, it is characterised in that: can be single liquid
Body nitrogenous fertilizer or liquid nitrogen fertilizer, potash fertilizer mixing composite fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610707706.0A CN106146104A (en) | 2016-08-23 | 2016-08-23 | Hopcalite agent waste liquid prepares the method for chemical fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610707706.0A CN106146104A (en) | 2016-08-23 | 2016-08-23 | Hopcalite agent waste liquid prepares the method for chemical fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106146104A true CN106146104A (en) | 2016-11-23 |
Family
ID=57342434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610707706.0A Pending CN106146104A (en) | 2016-08-23 | 2016-08-23 | Hopcalite agent waste liquid prepares the method for chemical fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106146104A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110382447A (en) * | 2017-02-07 | 2019-10-25 | 丹妮特拉尔公司 | For the method and apparatus from the air production liquid fertilizer containing the ammonia from animals urine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048841A (en) * | 1990-04-20 | 1991-01-30 | 孙进林 | A kind of method of producing ammonium sulfate and utilizing ammonium sulfate production compound fertilizer |
| CN102775219A (en) * | 2012-08-21 | 2012-11-14 | 中国科学院青海盐湖研究所 | Method for preparing nitrogen-phosphorus-potassium compound fertilizer from biotite |
-
2016
- 2016-08-23 CN CN201610707706.0A patent/CN106146104A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048841A (en) * | 1990-04-20 | 1991-01-30 | 孙进林 | A kind of method of producing ammonium sulfate and utilizing ammonium sulfate production compound fertilizer |
| CN102775219A (en) * | 2012-08-21 | 2012-11-14 | 中国科学院青海盐湖研究所 | Method for preparing nitrogen-phosphorus-potassium compound fertilizer from biotite |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110382447A (en) * | 2017-02-07 | 2019-10-25 | 丹妮特拉尔公司 | For the method and apparatus from the air production liquid fertilizer containing the ammonia from animals urine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |