CN107243249A - Efficient medical soda lime and preparation method thereof - Google Patents
Efficient medical soda lime and preparation method thereof Download PDFInfo
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- CN107243249A CN107243249A CN201710481879.XA CN201710481879A CN107243249A CN 107243249 A CN107243249 A CN 107243249A CN 201710481879 A CN201710481879 A CN 201710481879A CN 107243249 A CN107243249 A CN 107243249A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of efficient medical soda lime and preparation method thereof, include the raw material of following parts by weight：80~85 parts of calcium hydroxide, 0.5~5 part of half-H 2 O calcium sulphate, 0.1~1 part of hygroscopic agent, 0.1~5 part of hardness regulator, 1~5 part of foaming agent, 0.05~1 part of pH indicate coloring agent and 12~19 parts of water.The present invention, with advantages below：Being applied in combination for hardness regulator and foaming agent, overcomes the hardness and CO of existing product2The defect that absorptivity can not be taken into account；Add hygroscopic agent to be absorbed moisture, instead of highly basic of the prior art, it is to avoid the harmful alkene of reaction generation or the CO such as highly basic and anesthetic sevoflurane, while being calcium hydroxide preservation moisture, facilitate the absorption of the carbon dioxide of next step；Using calcium hydroxide as main function composition, by with sour gas CO2React CO2Absorb, do not produce substantial amounts of heat during preparation, production process is easily controllable, not only with low cost, and technique is simple and safe controllable.
Description
Technical field
The present invention relates to carbon dioxide absorbent for medical use, and in particular to efficient medical soda lime and preparation method thereof.
Background technology
Early in 1777, Sweden scientist Secheele had found that limewash can absorb the CO of animal breath generation2, and
During world war, scientists have invented the sustainable soda lime product used, and in World War II, as in army
Important component in soldier's breathing mask.Current soda lime is used as CO2Absorbent has been widely used, and is mainly used in anesthesia and is exhaled
Suction, respiratory care, high-pressure chamber, submarine, down-hole survival capsule, safe respirator etc..Soda lime is because its is inexpensive, efficient, use
Conveniently obtain the favor of people for a long time.Carbon-dioxide absorbent is can not in closed circuit anesthesia (or low discharge inhalational anesthetic)
The part lacked, soda lime is a kind of wherein the more commonly used absorbent, has been embodied in American Pharmacopeia.
The absorbability of carbon-dioxide absorbent is improved due to commonly using NaOH, KOH in soda lime, because NaOH, KOH can
With the progress of catalytic reaction, NaOH, the KOH contained is highly basic, it is possible to can with the reaction generation such as anesthetic sevoflurane it is a kind of into
For " compound A " harmful alkene or CO." carbon dioxide absorbent for medical use " provided in Chinese invention patent CN1541723A
In, soda lime is prepared for by raw material of calcium oxide, although the CO of the method sample2Absorptivity can reach more than 33%, but its raw material
For lime stone, also need through calcination process, gained calcium oxide content is relatively low, and impurity is more, and NaOH additions excessive (7 in formula
~8%), it is possible to anesthetic can be made to degrade.Therefore, sample obtained by the Recipe is difficult to meet medical requirement.
Therefore, low content or the carbon-dioxide absorbent without NaOH and KOH are prepared, is also the focus of external such research
One of.Patent EP20010960921 is with Ca (OH)2For raw material, with CaCl2And MgCl2For NMF, using silicate as plasticizer,
Compound is birdsed of the same feather flock together as adhesive using carboxymethyl cellulose, new soda lime is prepared for；Patent EP0939671A1 and Chinese patent
In CN1244817A, with Ca (OH)2For raw material, using calcium chloride hexahydrate as raw material, using calcium sulfate hemihydrate as plasticizer,
And using aluminium powder as leavening agent, it is prepared for new soda lime.Both patents are free of NaOH, KOH, can reduce to a certain extent
Degraded to anesthetic, but it absorbs CO2Ability can also decline.
In addition, conventional soda lime is low due to hardness, dust is high in transport, easily blocks breathing pipeline, if simple and crude
Ground improves product hardness, absorption efficiency can be caused low.
As can be seen here, the efficient medical soda lime for working out a kind of high rigidity, self raising flour dirt, high-selenium corn efficiency is needed badly.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of high rigidity, self raising flour dirt, the efficient medical of high-selenium corn efficiency
Soda lime.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention there is provided a kind of efficient medical alkali stone
Ash, includes the raw material of following parts by weight：80~85 parts of calcium hydroxide, 0.5~5 part of half-H 2 O calcium sulphate, 0.1~1 part
Hygroscopic agent, 0.1~5 part of hardness regulator, 1~5 part of foaming agent, 0.05~1 part of pH indicate coloring agent and 12~19 parts
Water.
In another preferred embodiment, the hygroscopic agent is at least one in calcium chloride dihydrate, glycerine or calcium sulfate
Kind, the hardness regulator is the water-soluble nano emulsion containing a variety of silicate and nano metal, and the pH indicates coloring agent
For titan yellow solution, crystal violet or ethyl violet solution.
In another preferred embodiment, the raw material of following parts by weight is included：80 parts of calcium hydroxide, the half of 5 parts
H 2 O calcium sulphate, 1 part of hygroscopic agent, 5 parts of hardness regulator, 5 parts of foaming agent, 1 part of pH indicate coloring agent and 13 parts of water.
In another preferred embodiment, the raw material of following parts by weight is included：85 parts of calcium hydroxide, 4.95 parts
Half-H 2 O calcium sulphate, 0.5 part of hygroscopic agent, 4 parts of hardness regulator, 3.5 parts of foaming agent, 0.05 part pH indicate coloring agent and
12 parts of water.
In another preferred embodiment, the raw material of following parts by weight is included：84 parts of calcium hydroxide, 0.5 part
Half-H 2 O calcium sulphate, 0.1 part of hygroscopic agent, 1.9 parts of hardness regulator, 4 parts of foaming agent, 0.5 part pH indicate coloring agent and
19 parts of water.
In another preferred embodiment, the raw material of following parts by weight is included：84 parts of calcium hydroxide, 4.9 parts
Half-H 2 O calcium sulphate, 1 part of hygroscopic agent, 0.1 part of hardness regulator, 1 part of foaming agent, 1 part of pH indicate coloring agent and 18 parts
Water.
Present invention also offers a kind of preparation method of efficient medical soda lime, comprise the following steps：
Calcium hydroxide, half-H 2 O calcium sulphate, hygroscopic agent, hardness regulator, foaming agent, the pH for preparing above-mentioned parts by weight refer to
Show coloring agent and water；
Hygroscopic agent, hardness regulator, foaming agent, pH are indicated that coloring agent and water are mixed, and are even added to calcium hydroxide
Stirred with half-H 2 O calcium sulphate, softwood is made and extrudes, produce diameter 3mm, 2~6mm of height semicylinder；
Semicylinder is dried into 1h~3h at 70 DEG C~110 DEG C, then sieving removes fine powder, the water weight into product
Content is 16~19%, that is, obtains efficient medical soda lime.
The present invention, with advantages below：
(1) hardness of soda lime can be improved by adding hardness regulator, it is to avoid due to hardness it is too low caused by transport when powder
Dirt is excessive, the problem of can also block the breathing pipeline of people when using, and helps to maintain the solid shape of product, puies forward product hardness
It is high；And if excessive high hardness, specific surface area lowers, and can influence absorption efficiency, therefore improve using foaming agent the ratio table of soda lime
Area, eliminates the harmful effect that increase hardness regulator is brought, increases the response area of carbon dioxide and soda lime, so as to carry
High-selenium corn efficiency, hardness regulator and blowing agent combination are used, and overcome the hardness and CO of existing product2Absorptivity can not be simultaneous
The defect of Gu, the need for meeting Clinical practice very well；
(2) add hygroscopic agent to be absorbed moisture, instead of highly basic of the prior art, it is to avoid highly basic and anesthetic
The harmful alkene of the reaction generation such as Sevoflurane or CO, while preserving moisture for calcium hydroxide, facilitate the suction of the carbon dioxide of next step
Receive；
(3) using calcium hydroxide as main function composition, by with sour gas CO2React CO2Absorb, during preparation
Substantial amounts of heat is not produced, production process is easily controllable, not only with low cost, and be that whole technique is simple and safe controllable, its
Reaction equation is as follows：
CO2+H2O→HCO3 -；HCO3-+Ca(OH)2→CaCO3+H2O。
Embodiment
The present invention is described in detail with reference to specific embodiment.
The efficient medical soda lime that the present invention is provided, includes the raw material of following parts by weight：80~85 parts of calcium hydroxide,
0.5~5 part of half-H 2 O calcium sulphate, 0.1~1 part of hygroscopic agent, 0.1~5 part of hardness regulator, 1~5 part of foaming agent,
0.05~1 part of pH indicates coloring agent and 12~19 parts of water.Calcium hydroxide is Ca (OH)2, half-H 2 O calcium sulphate is
CaSO4·0.5H2O。
Hygroscopic agent is at least one of calcium chloride dihydrate, glycerine or calcium sulfate, and hardness regulator is to contain a variety of silicic acid
The water-soluble nano emulsion of salt and nano metal, pH indicates that coloring agent is titan yellow solution, crystal violet or ethyl violet solution.
The present invention can be implemented according to following 4 embodiments：
Embodiment one
Using the raw material of following parts by weight：80 parts of calcium hydroxide, 5 parts of half-H 2 O calcium sulphate, 1 part of hygroscopic agent, 5 parts
Hardness regulator, 5 parts of foaming agent, 1 part of pH indicate coloring agent and 13 parts of water.
Using the raw material of following parts by weight：85 parts of calcium hydroxide, 4.95 parts of half-H 2 O calcium sulphate, 0.5 part of moisture absorption
Agent, 4 parts of hardness regulator, 3.5 parts of foaming agent, 0.05 part of pH indicate coloring agent and 12 parts of water.
Using the raw material of following parts by weight：84 parts of calcium hydroxide, 0.5 part of half-H 2 O calcium sulphate, 0.1 part of moisture absorption
Agent, 1.9 parts of hardness regulator, 4 parts of foaming agent, 0.5 part of pH indicate coloring agent and 19 parts of water.
Using the raw material of following parts by weight：84 parts of calcium hydroxide, 4.9 parts of half-H 2 O calcium sulphate, 1 part of hygroscopic agent,
0.1 part of hardness regulator, 1 part of foaming agent, 1 part of pH indicate coloring agent and 18 parts of water.
Present invention also offers a kind of preparation method of efficient medical soda lime, comprise the following steps：
Calcium hydroxide, half-H 2 O calcium sulphate, hygroscopic agent, hardness regulator, foaming agent, the pH for preparing above-mentioned parts by weight are indicated
Coloring agent and water；
Hygroscopic agent, hardness regulator, foaming agent, pH are indicated that coloring agent and water are mixed, and are even added to calcium hydroxide
Stirred with half-H 2 O calcium sulphate, softwood is made and extrudes, produce diameter 3mm, 2~6mm of height semicylinder；
Semicylinder is dried into 1h~3h at 70 DEG C~110 DEG C, then sieving removes fine powder, the water weight into product
Content is 16~19%, that is, obtains efficient medical soda lime.
The present invention, with advantages below：
(1) hardness of soda lime can be improved by adding hardness regulator, it is to avoid due to hardness it is too low caused by transport when powder
Dirt is excessive, the problem of can also block the breathing pipeline of people when using, and helps to maintain the solid shape of product, puies forward product hardness
It is high；And if excessive high hardness, specific surface area lowers, and can influence absorption efficiency, therefore improve using foaming agent the ratio table of soda lime
Area, eliminates the harmful effect that increase hardness regulator is brought, increases the response area of carbon dioxide and soda lime, so as to carry
High-selenium corn efficiency, hardness regulator and blowing agent combination are used, and overcome the hardness and CO of existing product2Absorptivity can not be simultaneous
The defect of Gu, the need for meeting Clinical practice very well；
(2) add hygroscopic agent to be absorbed moisture, instead of highly basic of the prior art, it is to avoid highly basic and anesthetic
The harmful alkene of the reaction generation such as Sevoflurane or CO, while preserving moisture for calcium hydroxide, facilitate the suction of the carbon dioxide of next step
Receive；
(3) using calcium hydroxide as main function composition, by with sour gas CO2React CO2Absorb, during preparation
Substantial amounts of heat is not produced, production process is easily controllable, not only with low cost, and be that whole technique is simple and safe controllable, its
Reaction equation is as follows：
CO2+H2O→HCO3 -；HCO3-+Ca(OH)2→CaCO3+H2O。
The present invention is not limited to above-mentioned preferred forms, and anyone should learn that the knot made under the enlightenment of the present invention
Structure changes, and the technical schemes that are same or similar to the present invention are each fallen within protection scope of the present invention.
Claims (7)
1. efficient medical soda lime, it is characterised in that include the raw material of following parts by weight：80~85 parts of calcium hydroxide, 0.5
~5 parts of half-H 2 O calcium sulphate, 0.1~1 part of hygroscopic agent, 0.1~5 part of hardness regulator, 1~5 part of foaming agent, 0.05~
1 part of pH indicates coloring agent and 12~19 parts of water.
2. efficient medical soda lime as claimed in claim 1, it is characterised in that the hygroscopic agent is calcium chloride dihydrate, glycerine
At least one of or dead plaster, the hardness regulator is the water-soluble nano containing a variety of silicate and nano metal
Emulsion, the pH indicates that coloring agent is titan yellow solution, crystal violet or ethyl violet solution.
3. efficient medical soda lime as claimed in claim 1, it is characterised in that include the raw material of following parts by weight：80 parts
Calcium hydroxide, 5 parts of half-H 2 O calcium sulphate, 1 part of hygroscopic agent, 5 parts of hardness regulator, 5 parts of foaming agent, 1 part of pH refer to
Show coloring agent and 13 parts of water.
4. efficient medical soda lime as claimed in claim 1, it is characterised in that include the raw material of following parts by weight：85 parts
Calcium hydroxide, 4.95 parts of half-H 2 O calcium sulphate, 0.5 part of hygroscopic agent, 4 parts of hardness regulator, 3.5 parts of foaming agent,
0.05 part of pH indicates coloring agent and 12 parts of water.
5. efficient medical soda lime as claimed in claim 1, it is characterised in that include the raw material of following parts by weight：84 parts
Calcium hydroxide, 0.5 part of half-H 2 O calcium sulphate, 0.1 part of hygroscopic agent, 1.9 parts of hardness regulator, 4 parts of foaming agent, 0.5
The pH of part indicates coloring agent and 19 parts of water.
6. efficient medical soda lime as claimed in claim 1, it is characterised in that include the raw material of following parts by weight：84 parts
Calcium hydroxide, 4.9 parts of half-H 2 O calcium sulphate, 1 part of hygroscopic agent, 0.1 part of hardness regulator, 1 part of foaming agent, 1 part
PH indicates coloring agent and 18 parts of water.
7. the preparation method of efficient medical soda lime, it is characterised in that comprise the following steps：
Prepare the calcium hydroxide of parts by weight in claim 1, half-H 2 O calcium sulphate, hygroscopic agent, hardness regulator, foaming agent,
PH indicates coloring agent and water；
Hygroscopic agent, hardness regulator, foaming agent, pH are indicated that coloring agent and water are mixed, and are even added to calcium hydroxide and half
Stirred in H 2 O calcium sulphate, softwood is made and extrudes, produce diameter 3mm, 2~6mm of height semicylinder；
Semicylinder is dried into 1h~3h at 70 DEG C~110 DEG C, then sieving removes fine powder, the water weight content into product
For 16~19%, that is, obtain efficient medical soda lime.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710481879.XA CN107243249A (en) | 2017-06-22 | 2017-06-22 | Efficient medical soda lime and preparation method thereof |
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| CN201710481879.XA CN107243249A (en) | 2017-06-22 | 2017-06-22 | Efficient medical soda lime and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499348A (en) * | 2018-12-26 | 2019-03-22 | 江苏立峰生物科技有限公司 | A kind of preparation method of carbon dioxide absorbent for medical use calcium lime |
| CN109569263A (en) * | 2018-12-26 | 2019-04-05 | 江苏立峰生物科技有限公司 | A kind of preparation method of new medical carbon-dioxide absorbent |
| CN113193310A (en) * | 2021-03-11 | 2021-07-30 | 镇江天源华威核能新材料有限公司 | Acid absorption pillow suitable for lead-acid storage battery for nuclear power station |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1244817A (en) * | 1996-11-25 | 2000-02-16 | 阿姆斯特朗医疗有限公司 | Carbon dioxide absorbent in anaesthesiology |
-
2017
- 2017-06-22 CN CN201710481879.XA patent/CN107243249A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1244817A (en) * | 1996-11-25 | 2000-02-16 | 阿姆斯特朗医疗有限公司 | Carbon dioxide absorbent in anaesthesiology |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499348A (en) * | 2018-12-26 | 2019-03-22 | 江苏立峰生物科技有限公司 | A kind of preparation method of carbon dioxide absorbent for medical use calcium lime |
| CN109569263A (en) * | 2018-12-26 | 2019-04-05 | 江苏立峰生物科技有限公司 | A kind of preparation method of new medical carbon-dioxide absorbent |
| CN113193310A (en) * | 2021-03-11 | 2021-07-30 | 镇江天源华威核能新材料有限公司 | Acid absorption pillow suitable for lead-acid storage battery for nuclear power station |
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