CN201520730U - Reaction equipment for continuous acidolysis during production of lactic acid - Google Patents
Reaction equipment for continuous acidolysis during production of lactic acid Download PDFInfo
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- CN201520730U CN201520730U CN2009202464151U CN200920246415U CN201520730U CN 201520730 U CN201520730 U CN 201520730U CN 2009202464151 U CN2009202464151 U CN 2009202464151U CN 200920246415 U CN200920246415 U CN 200920246415U CN 201520730 U CN201520730 U CN 201520730U
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- lactic acid
- reaction
- pipe
- acidolysis
- mixing reactor
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Abstract
The utility model relates to reaction equipment for continuous acidolysis during production of lactic acid, which comprises an acidolysis reactor, a hybrid reactor, as well as a calcium lactate feeding pipe and a sulfuric acid feeding pipe which are respectively communicated with the acidolysis reactor, and a discharge pipe communicated with the hybrid reactor; and the hybrid reactor is communicated with the acidolysis reactor by a first conducting pipe. Acidolysis reaction during production of lactic acid is conducted continuously and quickly; and the technical conditions of the reaction are easy to be controlled, the reaction period is short, and the generation of side reaction can be effectively prevented.
Description
Technical field
The utility model relates to a kind of lactic acid-producing device, and particularly a kind of can making extracted the lactic acid-producing continuous acidolysis reaction unit that the acidolysis process realizes continuous and automatic behind the lactic acid.
Background technology
In the prior art, the production of lactic acid is to utilize sulfuric acid and calcium lactate generation acidolysis reaction, generates lactic acid and crystalline sulfuric acid calcium, and its reaction equation is as follows:
Ca(C
3H
5O
3)
2+H
2SO
4＝2C
3H
6O
3+CaSO
4↓
Above-mentioned acidolysis reaction process speed of response under the high situation of temperature is fast; But calcium sulphate crystal is grown up slow under the high situation of temperature.At present, China L-lactic acid-producing acidolysis reaction process unit generally adopts single jar of rhythmic reaction, carries out above-mentioned replacement(metathesis)reaction and CaSO in reaction process simultaneously
4Crystal generates two stages.Because calcium lactate and sulfuric acid reaction are replacement(metathesis)reactions, speed of response is fast, and speed of response is determined by the Liquid Phase Diffusion speed of participating in reactant.Traditional acidolysis reaction technology, sulfuric acid flows in the calcium lactate solution, has formed supersaturation in the interfacial layer solution, causes local temperature to raise water evaporates; Cause a large amount of calcium sulfate and calcium lactate crystallization, form film, caking parcel phenomenon occurs; Thereby increased the sulphuric acid soln diffusional resistance, made solid-liquid normally uniform mixing and reaction mutually.Therefore, in the prior art, L-lactic acid-producing acidolysis reaction processing condition are wayward, have side reaction to take place, and prolong reaction time; Thereby influence quality product and yield, cost is higher, and equipment corrosion is serious.
The utility model content
The purpose of this utility model be to provide a kind of lactic acid-producing acidolysis reaction continuously, the lactic acid-producing continuous acidolysis reaction unit that carries out fast; Make reaction process condition control easily, the short generation that also can effectively prevent side reaction reaction time.
The utility model is achieved by the following technical solution: a kind of lactic acid-producing continuous acidolysis reaction unit, and described lactic acid-producing continuous acidolysis reaction unit comprises:
The acidolysis reaction device;
Respectively with the calcium lactate feed-pipe and the sulfuric acid feed-pipe of described acidolysis reaction device conducting;
Mixing reactor, described mixing reactor and described acidolysis reaction device are by the first conduction pipe conducting;
Vent pipe with described mixing reactor conducting.
Above-mentioned lactic acid-producing continuous acidolysis reaction unit, described mixing reactor is at least two, and described mixing reactor is by the conducting successively of second conduction pipe.
Above-mentioned lactic acid-producing continuous acidolysis reaction unit, described calcium lactate feed-pipe is provided with temperature indicator, pressure recorder and flow indicator.
Above-mentioned lactic acid-producing continuous acidolysis reaction unit, described sulfuric acid feed-pipe is provided with pressure recorder and flow indicator.
Above-mentioned lactic acid-producing continuous acidolysis reaction unit is provided with overboard pump on described second conduction pipe and the described vent pipe.
Above-mentioned lactic acid-producing continuous acidolysis reaction unit is provided with overboard pump on described second conduction pipe and the described vent pipe.
Above-mentioned lactic acid-producing continuous acidolysis reaction unit is provided with whipping appts on the described mixing reactor.
Lactic acid-producing continuous acidolysis reaction unit of the present utility model has following beneficial technical effects: the growth of (1) calcium sulphate crystal is made into to carry out separately with jar with replacement(metathesis)reaction by original simultaneously, stir cooling by multiple tank and mix diffusion, prolong flowing time, impel CaSO
42H
2The O tabular crystal generates.(2) reach the continuous and automatic of acidolysis reaction, effectively controlled reaction conditions, prevented the generation of side reaction, keep the stable of technic index, reached the simplification flow process, improved operating environment, reduce equipment corrosion, improved yield, alleviated labor strength greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model lactic acid-producing continuous acidolysis reaction unit, wherein:
The 1-temperature indicator, 2-pressure recorder, 3-flow indicator, 4-calcium lactate feed-pipe, 5-sulfuric acid feed-pipe, 6-acidolysis reaction device, 71-first conduction pipe, 72-second conduction pipe, 73-vent pipe, 8-mixing reactor.
Embodiment
As shown in Figure 1, present embodiment lactic acid-producing continuous acidolysis reaction unit comprise acidolysis reaction device 6, mixing reactor 8, respectively with the calcium lactate feed-pipe 4 and the sulfuric acid feed-pipe 5 of described acidolysis reaction device 6 conductings, and with the vent pipe 73 of described mixing reactor 8 conductings; Described mixing reactor 8 passes through 71 conductings of first conduction pipe with described acidolysis reaction device 6.Described mixing reactor 8 is 3, and 3 described mixing reactors 8 are provided with whipping appts 9 by second conduction pipe 72 conducting successively on the described mixing reactor 8.Described calcium lactate feed-pipe 4 is provided with temperature indicator 1, pressure recorder 2 and flow indicator 3.Described sulfuric acid feed-pipe 5 is provided with pressure recorder 2 and flow indicator 3.Be provided with overboard pump 10 on described second conduction pipe 72 and the described vent pipe 73.
Calcium lactate and sulfuric acid enter the acidolysis reaction device 6 of withstand voltage corrosion-and high-temp-resistant by a certain percentage, carry out replacement(metathesis)reaction.First conduction pipe 71 of the withstand voltage corrosion-and high-temp-resistant of material process of initial reaction enters the mixing reactor 8 of first corrosion-and high-temp-resistant, and the stirring 9 of process corrosion resistant material mixes, and makes calcium sulphate crystal further separate out, grow.Compound is discharged through the pump 10 of corrosion-and high-temp-resistant, enters second mixing reactor 8 along second conduction pipe 72 and mixes, so that the calcium sulphate crystal continued growth; Compound is discharged through the pump 10 of corrosion-and high-temp-resistant again, entering the 3rd mixing reactor 8 along second conduction pipe 72 mixes, so that the calcium sulphate crystal growth reaches best size, calcium lactate and sulfuric acid reaction are complete, and the material that reacts completely enters down separation circuit one by vent pipe 73.The calcium sulphate crystal growth is made into to carry out separately with jar with replacement(metathesis)reaction by original simultaneously, calcium lactate and sulfuric acid replacement(metathesis)reaction are carried out in the acidolysis reaction device, and crystal growth is carried out in mixing reactor, realized the purpose of replacement(metathesis)reaction and crystal growth separation control, stir cooling by multiple tank and mix diffusion, prolong flowing time, impel CaSO
42H
2The O tabular crystal generates.Reach the continuous and automatic of acidolysis reaction, effectively controlled reaction conditions, prevented the generation of side reaction, keep the stable of technic index, reached the simplification flow process, improved operating environment, reduce equipment corrosion, improved yield, alleviated labor strength greatly.In addition, the replacement(metathesis)reaction of present embodiment makes temperature control conditioned reaction thing ratio into by original intermittent type chuck heated and stirred reaction, and decomposition reaction is carried out fast.
In some other embodiment, described mixing reactor 8 can be one, is preferably best size, the complete reaction of material and carrying out continuously of production that mixing reactor 8 more than 2 or 2 could be realized crystal growth.
Claims (7)
1. a lactic acid-producing continuous acidolysis reaction unit is characterized in that, described lactic acid-producing continuous acidolysis reaction unit comprises:
Acidolysis reaction device (6);
Respectively with the calcium lactate feed-pipe (4) and the sulfuric acid feed-pipe (5) of described acidolysis reaction device (6) conducting;
Mixing reactor (8), described mixing reactor (8) passes through first conduction pipe (71) conducting with described acidolysis reaction device (6);
Vent pipe (73) with described mixing reactor (8) conducting.
2. according to the described lactic acid-producing continuous acidolysis of claim 1 reaction unit, it is characterized in that described mixing reactor (8) is at least two, described mixing reactor (8) is by second conduction pipe (72) conducting successively.
3. according to claim 1 or 2 described lactic acid-producing continuous acidolysis reaction units, it is characterized in that described calcium lactate feed-pipe (4) is provided with temperature indicator (1), pressure recorder (2) and flow indicator (3).
4. according to claim 1 or 2 described lactic acid-producing continuous acidolysis reaction units, it is characterized in that described sulfuric acid feed-pipe (5) is provided with pressure recorder (2) and flow indicator (3).
5. according to the described lactic acid-producing continuous acidolysis of claim 3 reaction unit, it is characterized in that, be provided with overboard pump (10) on described second conduction pipe (72) and the described vent pipe (73).
6. according to the described lactic acid-producing continuous acidolysis of claim 4 reaction unit, it is characterized in that, be provided with overboard pump (10) on described second conduction pipe (72) and the described vent pipe (73).
7. according to claim 5 or 6 described lactic acid-producing continuous acidolysis reaction units, it is characterized in that, be provided with whipping appts (9) on the described mixing reactor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202464151U CN201520730U (en) | 2009-10-20 | 2009-10-20 | Reaction equipment for continuous acidolysis during production of lactic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202464151U CN201520730U (en) | 2009-10-20 | 2009-10-20 | Reaction equipment for continuous acidolysis during production of lactic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201520730U true CN201520730U (en) | 2010-07-07 |
Family
ID=42506909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202464151U Expired - Lifetime CN201520730U (en) | 2009-10-20 | 2009-10-20 | Reaction equipment for continuous acidolysis during production of lactic acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201520730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826991A (en) * | 2012-07-24 | 2012-12-19 | 山东天兴生物科技有限公司 | Process and device for continuous acidification of acidification section in production of sebacic acid |
| CN108530291A (en) * | 2018-06-08 | 2018-09-14 | 安徽固德生物工程有限公司 | A kind of continuous acidolysis method of calcium hydrogen citrate |
-
2009
- 2009-10-20 CN CN2009202464151U patent/CN201520730U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826991A (en) * | 2012-07-24 | 2012-12-19 | 山东天兴生物科技有限公司 | Process and device for continuous acidification of acidification section in production of sebacic acid |
| CN102826991B (en) * | 2012-07-24 | 2014-09-24 | 山东天兴生物科技有限公司 | Process and device for continuous acidification of acidification section in production of sebacic acid |
| CN108530291A (en) * | 2018-06-08 | 2018-09-14 | 安徽固德生物工程有限公司 | A kind of continuous acidolysis method of calcium hydrogen citrate |
| CN108530291B (en) * | 2018-06-08 | 2020-02-21 | 安徽固德生物工程有限公司 | Continuous acidolysis method of calcium hydrogen citrate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HE'NAN JINDAN LACTIC ACID TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HENAN JINDAN LACTIC ACID TECHNOLOGY CO., LTD. Effective date: 20110916 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110916 Address after: No. 08 Dancheng County, Henan Province Road 477150 Dan Patentee after: Henan Jindan Lactic Acid Tech Co.,Ltd. Address before: No. 08 Dancheng County, Henan Province Road 477150 Dan Patentee before: Henan Jindan Lactic Acid Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |
|
| CX01 | Expiry of patent term |