CN1472186A - Method for producing calcium formate - Google Patents
Method for producing calcium formate Download PDFInfo
- Publication number
- CN1472186A CN1472186A CNA031124550A CN03112455A CN1472186A CN 1472186 A CN1472186 A CN 1472186A CN A031124550 A CNA031124550 A CN A031124550A CN 03112455 A CN03112455 A CN 03112455A CN 1472186 A CN1472186 A CN 1472186A
- Authority
- CN
- China
- Prior art keywords
- value
- vaporizer
- reactor
- calcium
- feed
- 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.)
- Granted
Links
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
A process for preparing calcium formate as feed includes such steps as adding formic acid and calcium carbonate into reactor, reacting, adding calcium hydroxide to regulate pH value, stirring, filtering, regulating pH value, evaporating, centrifugal separating of mother liquid from crystal, continuing to evaporate mother liquid, and drying crystal. Its advantages are continuous production, low cost and low content of metallic ions in product.
Description
Technical field: the present invention relates to Chemicals production method technical field, is a kind of method of producing calcium formiate more specifically.
Background technology: the method for producing calcium formiate at present has formic acid and calcium carbonate reaction, formic acid and calcium oxide reaction, formic acid and calcium hydroxide reaction to generate thick calcium formiate, and thick calcium formiate obtains concentration formic acid and high calcium through dissolving, recrystallization again.These technical schemes can not serialization, large-scale production, and the production cost height, product content is low, impurity is many, and especially some heavy metal ion content height cause to can not get applying in feed.
Summary of the invention:, the objective of the invention is to invent a kind of method of producing calcium formiate for overcoming above-mentioned shortcoming.Its technical scheme is: is concentration that 8%～30% formic acid adds in the reactor, under constantly stirring be concentration that 95% lime carbonate adds in the reactor, react at a certain temperature after adding lime carbonate, add purity again and be 91% calcium hydroxide and transfer the calcium formiate aqueous ph value that generates, restir for some time finishes reaction; To deliver to the adjustment groove after the filtration of reaction solution process filter, adjust totally two of grooves, adjust the pH value of groove internal reaction liquid respectively, the reaction solution that mixes up pH value is alternately to the vaporizer feed, brilliant liquid mixture is delivered to the whizzer separation after evaporating, mother liquor returns vaporizer and continues evaporation, and crystal is made calcium formiate after drying; Totally three in vaporizer, one when the whizzer feed, in addition two to accept mother liquid evaporation standby.The advantage of this invention is: this calcium formate producing process technological innovation is strong; have production cost low, do not have " three wastes " discharging, can realize continuous large-scale production, stable and reliable product quality; reach feed pole marks alignment request, price advantage is obvious, and economic and social benefit is remarkable.
Embodiment:
Embodiment one: is concentration that 8.67 tons in 8% formic acid adds in the reactor, under constantly stirring be concentration that 95% lime carbonate adds in the reactor for 0.79 ton, under 20～30 ℃ of temperature, reacted 10 minutes after adding lime carbonate, add purity again and be 91% calcium hydroxide and transfer the calcium formiate aqueous ph value that generates 10～12, restir finished reaction in 10 minutes; To deliver to the adjustment groove after the filtration of reaction solution process filter, adjust totally two of grooves, when adjusting pH value for one, another reaction solution of transferring PH=7 is to the vaporizer feed, adjust groove alternately to the vaporizer feed for two, brilliant liquid mixture is delivered to the whizzer separation after evaporating, and mother liquor returns vaporizer and continues evaporation, and crystal is made 1 ton of calcium formiate after drying; Totally three in vaporizer, one when the whizzer feed, in addition two to accept mother liquid evaporation standby.
Embodiment two: is concentration that 3.47 tons in 20% formic acid adds in the reactor, under constantly stirring be concentration that 95% lime carbonate adds in the reactor for 0.79 ton, under 20～30 ℃ of temperature, reacted 10 minutes after adding lime carbonate, add purity again and be 91% calcium hydroxide and transfer the calcium formiate aqueous ph value that generates 10～12, restir finished reaction in 10 minutes; To deliver to the adjustment groove after the filtration of reaction solution process filter, adjust totally two of grooves, when adjusting pH value for one, another reaction solution of transferring PH=7 is to the vaporizer feed, adjust groove alternately to the vaporizer feed for two, brilliant liquid mixture is delivered to the whizzer separation after evaporating, and mother liquor returns vaporizer and continues evaporation, and crystal is made 1 ton of calcium formiate after drying; Totally three in vaporizer, one when the whizzer feed, in addition two to accept mother liquid evaporation standby.
Embodiment three: is concentration that 2.31 tons in 30% formic acid adds in the reactor, under constantly stirring be concentration that 95% lime carbonate adds in the reactor for 0.79 ton, under 20～30 ℃ of temperature, reacted 10 minutes after adding lime carbonate, add purity again and be 91% calcium hydroxide and transfer the calcium formiate aqueous ph value that generates 10～12, restir finished reaction in 10 minutes; To deliver to the adjustment groove after the filtration of reaction solution process filter, adjust totally two of grooves, when adjusting pH value for one, another reaction solution of transferring PH=7 is to the vaporizer feed, adjust groove alternately to the vaporizer feed for two, brilliant liquid mixture is delivered to the whizzer separation after evaporating, and mother liquor returns vaporizer and continues evaporation, and crystal is made 1 ton of calcium formiate after drying; Totally three in vaporizer, one when the whizzer feed, in addition two to accept mother liquid evaporation standby.
Claims (1)
1, a kind of method of producing calcium formiate, it is characterized in that: is concentration that 8%～30% formic acid adds in the reactor, under constantly stirring be concentration that 95% lime carbonate adds in the reactor, react at a certain temperature after adding lime carbonate, add purity again and be 91% calcium hydroxide and transfer the calcium formiate aqueous ph value that generates, restir for some time finishes reaction; To deliver to the adjustment groove after the filtration of reaction solution process filter, adjust totally two of grooves, adjust the pH value of groove internal reaction liquid respectively, the reaction solution that mixes up pH value is alternately to the vaporizer feed, brilliant liquid mixture is delivered to the whizzer separation after evaporating, mother liquor returns vaporizer and continues evaporation, and crystal is made calcium formiate after drying; Totally three in vaporizer, one when the whizzer feed, in addition two to accept mother liquid evaporation standby.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031124550A CN1184184C (en) | 2003-06-30 | 2003-06-30 | Method for producing calcium formate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031124550A CN1184184C (en) | 2003-06-30 | 2003-06-30 | Method for producing calcium formate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1472186A true CN1472186A (en) | 2004-02-04 |
| CN1184184C CN1184184C (en) | 2005-01-12 |
Family
ID=34152437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031124550A Expired - Fee Related CN1184184C (en) | 2003-06-30 | 2003-06-30 | Method for producing calcium formate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1184184C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368371C (en) * | 2005-09-29 | 2008-02-13 | 濮阳市鹏鑫化工有限公司 | Method for preparing calcium formate |
| CN101659606B (en) * | 2009-09-15 | 2012-06-27 | 山东兴辉化工有限公司 | Method for producing calcium formate by using industrial waste liquid |
| CN102924258A (en) * | 2012-10-31 | 2013-02-13 | 山东中谷淀粉糖有限公司 | Method for producing calcium formate from sugar mill filter mud |
| CN104726937A (en) * | 2015-03-09 | 2015-06-24 | 张香丽 | Calcium formate single crystal optical material and preparation method thereof |
| RU2564856C1 (en) * | 2014-06-04 | 2015-10-10 | Закрытое акционерное общество "ЭКОС-1" | Method of producing calcium formate |
| US20150342160A1 (en) * | 2014-05-27 | 2015-12-03 | AQ Marketing AG | Salt-composition for supplementing a mineral balance in the aquaristic area, ready for use solution of said salt-composition, use of said salt-composition, and aquaristic ornamental stone obtained by said use |
-
2003
- 2003-06-30 CN CNB031124550A patent/CN1184184C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368371C (en) * | 2005-09-29 | 2008-02-13 | 濮阳市鹏鑫化工有限公司 | Method for preparing calcium formate |
| CN101659606B (en) * | 2009-09-15 | 2012-06-27 | 山东兴辉化工有限公司 | Method for producing calcium formate by using industrial waste liquid |
| CN102924258A (en) * | 2012-10-31 | 2013-02-13 | 山东中谷淀粉糖有限公司 | Method for producing calcium formate from sugar mill filter mud |
| US20150342160A1 (en) * | 2014-05-27 | 2015-12-03 | AQ Marketing AG | Salt-composition for supplementing a mineral balance in the aquaristic area, ready for use solution of said salt-composition, use of said salt-composition, and aquaristic ornamental stone obtained by said use |
| CN105165704A (en) * | 2014-05-27 | 2015-12-23 | Aq市场营销股份有限公司 | Salt-composition for supplementing a mineral balance in the aquaristic area, ready for use solution of said salt-composition, use of said salt-composition, and aquaristic ornamental stone obtained by said use |
| US10548301B2 (en) * | 2014-05-27 | 2020-02-04 | Tropic Marin Ag | Salt-composition for supplementing a mineral balance in the aquaristic area, ready for use solution of said salt-composition, use of said salt-composition, and aquaristic ornamental stone obtained by said use |
| RU2564856C1 (en) * | 2014-06-04 | 2015-10-10 | Закрытое акционерное общество "ЭКОС-1" | Method of producing calcium formate |
| CN104726937A (en) * | 2015-03-09 | 2015-06-24 | 张香丽 | Calcium formate single crystal optical material and preparation method thereof |
| CN104726937B (en) * | 2015-03-09 | 2017-05-03 | 孙王淇 | Calcium formate single crystal optical material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1184184C (en) | 2005-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101993105B (en) | Method for preparing light calcium carbonate and co-producing ammonium sulfate from phosphogypsum | |
| CN100542961C (en) | A kind of technology of processing bauxite to produce hydroted alumina with sodium hydroxide molten salt growth method | |
| CN100396733C (en) | Method for producing the red pigment of ferric oxide from ferrous sulphate of byproduct abolished by titanium white | |
| CN114436297B (en) | Method for preparing sodium carbonate from mirabilite | |
| CN110745803A (en) | Method for preparing potassium dihydrogen phosphate from wet-process phosphoric acid | |
| CN1184184C (en) | Method for producing calcium formate | |
| CN114988380A (en) | Method for producing food-grade monopotassium phosphate and co-producing high-purity gypsum by using feed-grade calcium hydrophosphate | |
| CN101863496A (en) | Method for preparing battery grade lithium carbonate by purifying industrial grade lithium carbonate | |
| CN110204437A (en) | A method of producing L MALIC ACID coproduction succinic acid | |
| CN111732506B (en) | Method for separating and extracting high-purity malic acid | |
| CN1063730C (en) | Technology for producing magnesium sulfate in treatment of titanium white waste sulfuric acid | |
| CN101214980A (en) | Method for producing large particles of heptahydrate magnesium sulfate and monohydrate magnesium sulfate from magnesium sulfate solution | |
| CN109534369B (en) | Membrane integrated lithium chloride preparation equipment and method thereof | |
| CN115676788B (en) | High-purity potassium dihydrogen phosphate and preparation method thereof | |
| CN103012217A (en) | Method for preparing high-purity aminoguanidine bicarbonate | |
| CN102993231A (en) | Separation method of glyphosine in glyphosate mother liquor | |
| CN101723842B (en) | Method for preparing ethylene diamine tetraacetic acid (EDTA) disodium salt | |
| CN104355990A (en) | Method for recycling and mechanically using L- (+) -tartaric acid in D-ethyl ester production | |
| JP4050864B2 (en) | Method for producing calcium chloride aqueous solution | |
| CN109336151B (en) | Method for preparing aluminum chloride by using fly ash | |
| CN113860376A (en) | Method for preparing high-purity manganese carbonate by using vanadium extraction wastewater | |
| CN110407241A (en) | A kind of preparation method of highly active calcium oxide | |
| CN111909025B (en) | Method for producing calcium hydrogen malate and application of method in production of malic acid | |
| CN115724453B (en) | Purification and recovery method of ferric phosphate mother liquor | |
| CN110194492B (en) | Preparation method of basic nickel carbonate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050112 Termination date: 20110630 |