CN1122636C - Process for recovering boric acid from boron mud - Google Patents
Process for recovering boric acid from boron mud Download PDFInfo
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- CN1122636C CN1122636C CN01111140A CN01111140A CN1122636C CN 1122636 C CN1122636 C CN 1122636C CN 01111140 A CN01111140 A CN 01111140A CN 01111140 A CN01111140 A CN 01111140A CN 1122636 C CN1122636 C CN 1122636C
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- boric acid
- boracic acid
- production
- boron mud
- water
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to a method for recovering boracic acid from boric sludge obtained during the process of the production of boracic acid. In the method, a mother solution or water during the process of the production of boracic acid is added in the boric sludge, and the quantity of the mother solution or the water is 0.5 to 5 times than that of boric sludge; the mother solution or the water is heated to 10 to 100 DEG C and is uniformly mixed with the boric sludge; then, the liquid is filtered by a filter, filtration residues are discharged, and filtrate goes into the production working procedure of boracic acid to carry out the production of boracic acid. The present invention has the advantages of little investment, simple technology, utilization rate improvement of boron resources and environmental pollution decrease; the yield of boracic acid during the process of production can be increased by more than 95%, and the content of boracic acid in discharged sludge can be decreased to be lower than 2%. Thus, the present invention has good social and economic benefits.
Description
The present invention relates to reclaim in a kind of boron mud that from the boric acid production process, obtains the method for boric acid.
Boric acid is as basic material, its market capacity is very big, and sulfuric acid process to produce boric acid be the working method of generally using in the world at present, state such as the U.S., Russia all adopts this method at present, the yield of boric acid is between 70-77%, when the yield of boric acid had been brought up to 90% left and right sides, one ton of boric acid of every production still had 2-7 ton boron mud to be excluded, and boron mud mesoboric acid content reaches 3-9%.Utilization to boron mud mainly is to sneak into a certain proportion of phosphorus fertiliser containing magnesium at present, be mixed with boron magnesium phosphorus composite fertilizer, but its consumption is limited, and in commercial process, boron mud often is discharged, and such one is contaminate environment, the 2nd, and the waste resource.
The objective of the invention is to from boron mud, as far as possible boric acid be extracted, the boric acid production technique is optimized more, improve the yield of boric acid, the waste of minimizing boron resource, reduce environmental pollution.
The technical scheme that the present invention intends taking is a kind of method that reclaims boric acid from boron mud, it is characterized in that in boron mud adding mother liquor or water or clear water in the 0.5-5 boric acid production process doubly of boron mud amount, and be heated to 10-100 ℃, stir, again this material is filtered on filter, filter can adopt plate and frame(type)filter press or whizzer, and with filter residue discharging, filtrate enters in the production process of boric acid again carries out boric acid production.
The present invention have the investment little, Technology is simple, and the production yield of boric acid is reached more than 95%, the boron mud mesoboric acid content that emits has reduced environmental pollution less than 2%, has saved the boron resource, has good social benefit and economic benefit.
The invention will be further described below in conjunction with accompanying drawing.
Accompanying drawing is a process flow sheet of the present invention.
At first the boron mud that emits in the boric acid production process is collected, mother liquor or water or clear water in the 0.5-5 boric acid production process doubly of adding boron mud amount, be heated to 10-100 ℃, stir, on filter, filter, filter can adopt plate and frame(type)filter press or whizzer, filter residue discharging, and filtrate carries out carrying out boric acid production in the acidolysis groove in the production process of boric acid once more.Like this, reduce the loss of boric acid from boron mud, improved the yield that boric acid is produced.Be several embodiments of the present invention below, filter has adopted whizzer among the embodiment, adopts plate and frame(type)filter press in the scale operation.
| Sequence number | Boron mud | Mother liquor or water or clear water | Temperature (℃) | Filtrate | Filter residue | Remarks | ||||
| Weight (g) | Boric acid content (H 3BO 2％) | Weight (g) | Boric acid content (H 3BO 2％) | Weight (g) | Boric acid content (H 3BO 2％) | Weight (g) | Boric acid resultant (H 3BO 2％) | |||
| Example one | 1000 | 7.68 | 2750 | 2.81 | 10 | 2600 | 3.92 | 920 | 2.00 | Adopt mother liquor |
| Example two | 1000 | 5.02 | 2720 | 3.75 | 50 | 2578 | 4.26 | 975 | 1.81 | Adopt mother liquor |
| Example three | 1000 | 5.04 | 1500 | 2.20 | 95 | 1020 | 5.64 | 1360 | 1.20 | Adopt mother liquor |
| Example four | 1000 | 4.00 | 1000 | 1.02 | 30 | 1025 | 3.22 | 980 | 1.49 | Adopt clear water |
| Example five | 1000 | 4.00 | 930 | (1) | 60 | 805 | 2.71 | 883 | 1.95 | Adopt clear water |
| Example six | 1000 | 4.97 | 3000 | (1) | 80 | 2980 | 1.08 | 950 | 1.73 | Adopt clear water |
Claims (1)
1, a kind of method that from boron mud, reclaims boric acid, it is characterized in that in boron mud adding mother liquor or water or clear water in the 0.5-5 boric acid production process doubly of boron mud amount, and be heated to 10-100 ℃, stir, again this material is filtered on filter, filter residue discharging, filtrate enter in the production process of boric acid again carries out boric acid production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01111140A CN1122636C (en) | 2001-03-19 | 2001-03-19 | Process for recovering boric acid from boron mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01111140A CN1122636C (en) | 2001-03-19 | 2001-03-19 | Process for recovering boric acid from boron mud |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1309082A CN1309082A (en) | 2001-08-22 |
| CN1122636C true CN1122636C (en) | 2003-10-01 |
Family
ID=4658967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01111140A Expired - Fee Related CN1122636C (en) | 2001-03-19 | 2001-03-19 | Process for recovering boric acid from boron mud |
Country Status (1)
| Country | Link |
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| CN (1) | CN1122636C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319855C (en) * | 2005-07-17 | 2007-06-06 | 青海中信国安科技发展有限公司 | Production process of boric acid from boron-containing bischofite satured solution |
| CN100560491C (en) * | 2007-08-03 | 2009-11-18 | 乳源瑶族自治县东阳光化成箔有限公司 | Change into the recovery and treatment method and the treatment system thereof of waste liquid mesoboric acid |
| CN102180477A (en) * | 2010-11-23 | 2011-09-14 | 王嘉兴 | Method for preparing calcium metaborate from boron sludge washing solution |
| CN110066526A (en) * | 2019-05-14 | 2019-07-30 | 福建欧仕儿童用品股份有限公司 | A kind of its preparation process for producing articles for children of environment-friendly antibacterial polymer materials and their application |
| CN110128779A (en) * | 2019-05-14 | 2019-08-16 | 福建欧仕儿童用品股份有限公司 | A kind of its preparation process for producing articles for children of high-strength anti-flaming polymer materials and their application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1022469C (en) * | 1989-01-12 | 1993-10-20 | 旭化成工业株式会社 | High-sensitivity thermosensitive multilayer film and method for production of plate-making stencil shet |
| CN1222485A (en) * | 1997-12-05 | 1999-07-14 | 李治涛 | Preparation of light magnesium carbonate by using baron slurry |
-
2001
- 2001-03-19 CN CN01111140A patent/CN1122636C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1022469C (en) * | 1989-01-12 | 1993-10-20 | 旭化成工业株式会社 | High-sensitivity thermosensitive multilayer film and method for production of plate-making stencil shet |
| CN1222485A (en) * | 1997-12-05 | 1999-07-14 | 李治涛 | Preparation of light magnesium carbonate by using baron slurry |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1309082A (en) | 2001-08-22 |
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Granted publication date: 20031001 Termination date: 20200319 |