CN109399569A - A kind of method that sulfuric acid extraction prepares hydrogen chloride - Google Patents
A kind of method that sulfuric acid extraction prepares hydrogen chloride Download PDFInfo
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- CN109399569A CN109399569A CN201811627074.2A CN201811627074A CN109399569A CN 109399569 A CN109399569 A CN 109399569A CN 201811627074 A CN201811627074 A CN 201811627074A CN 109399569 A CN109399569 A CN 109399569A
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- hydrogen chloride
- hydrochloric acid
- sulfuric acid
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- sliding block
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/07—Purification ; Separation
- C01B7/0706—Purification ; Separation of hydrogen chloride
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Abstract
The invention belongs to hydrogen chloride preparation technical field, specifically a kind of method that sulfuric acid extraction prepares hydrogen chloride；Hydrogen chloride preparation device used in this method includes reaction chamber, the sulfuric acid spray head for being fixed on reaction chamber top, the hydrochloric acid conduit for piercing into reaction chamber lower end center from bottom to top, hydrochloric acid spray head, mixing module and power plant module；Reaction chamber upper end is provided with gas outlet, and reaction chamber lower end center is provided with discharge outlet, is provided with square cavity in the side wall of reaction chamber side；Hydrochloric acid spray head is mounted on hydrochloric acid conduit upper end, and hydrochloric acid spray head is located at the positive lower end of sulfuric acid spray head；Mixing module includes that sliding sleeve and stair-stepping sliding squeeze item；Power plant module includes power lead screw and No.1 sliding block；The present invention can speed up the mixability of the concentrated sulfuric acid and concentrated hydrochloric acid by mixing module, and the concentrated sulfuric acid can be made sufficiently to be dehydrated concentrated hydrochloric acid, to prepare the few high-quality hydrogen chloride gas of purity is high, moisture.
Description
Technical field
The invention belongs to hydrogen chloride preparation technical field, specifically a kind of sulfuric acid extraction prepares the side of hydrogen chloride
Method.
Background technique
In the prior art, hydrogen chloride gas is the important source material of sulfuric acid plant's production chlorosulfonic acid, and sulfuric acid plant oneself is not
Hydrogen chloride gas, it is necessary to come from the transport of other chlor-alkali factories, but unless these factories and sulfuric acid plant apart from close, can use pipeline
Directly transport hydrogen chloride gas, otherwise, after hydrochloric acid can only being transported to sulfuric acid plant, then with " hot desorption method " generate hydrogen chloride gas.
But the constant boiling point concentration of hydrochloric acid is 20.2%, concentration of hydrochloric acid is resolved to from 30% close to azeotropic by general " hot desorption method "
When point concentration 21%-23%, that is, stop that pure hydrogen chloride gas is precipitated, therefore, the utilization rate that hydrogen chloride is precipitated in hydrochloric acid is extremely low,
The weak hydrochloric acid of a large amount of 21%-23% is not available in sulfuric acid plant, is had only and is expended a large amount of manpower and material resources again, and chlor-alkali factory is returned
Reuptake the finished product hydrochloric acid that hydrogen chloride makes 30% again.Round transport cost in this way is very big.
Also occurs the technical solution of some hydrogen chloride Preparation equipments in the prior art, as application No. is 932371701
One Chinese patent discloses a kind of hydrogen chloride generator by sulphuric acid extracting method, including tower-shaped staving, the concentrated sulfuric acid and hydrochloric acid spray tube,
Hydrogen chloride gas outlet and dilute sulfuric acid discharge pipe.
Generator in the technical solution produces hydrogen chloride gas, significantly using the high dehydrated of the concentrated sulfuric acid from hydrochloric acid
The utilization rate for improving hydrochloric acid reduces transport, reduces costs.The hydrogen chloride obtained with the generator is with high purity, dry, than
The hydrogen chloride gas purity of general chlor-alkali plant synthesis is also high, and moisture is also few.And chlorination is prepared using " hot desorption method " than general
Hydrogen is energy saving.It does not need heat source at all.And thermal energy can also be discharged.But it is dense in progress in such hydrogen chloride Preparation equipment
Sulfuric acid is not stirred mixed solution with when mixed in hydrochloric acid, to reduce the dehydrating effect of the concentrated sulfuric acid, reduces hydrogen chloride
The production quantity of gas remains hydrochloric acid in mixed liquor, causes to waste, increase cost；The hydrogen chloride of preparation is in storage tank simultaneously
Middle storage is had a small amount of hydrogen chloride and overflowed from storage tank, caused security risk due to air-tightness problem.
Summary of the invention
In order to make up for the deficiencies of the prior art, the method that a kind of sulfuric acid extraction proposed by the present invention prepares hydrogen chloride, this
The purpose of invention is to safely prepare the few high-quality hydrogen chloride gas of purity is high, moisture.
The technical solution adopted by the present invention to solve the technical problems is: a kind of sulfuric acid extraction preparation of the present invention
The method of hydrogen chloride, the method steps are as follows:
S1 is passed through concentrated hydrochloric acid, the sulfuric acid into hydrogen chloride preparation device in the hydrochloric acid conduit into hydrogen chloride preparation device
It is passed through the concentrated sulfuric acid in spray head, carries out hydrogen chloride preparation with hydrogen chloride preparation device；
S2 connects the fluid reservoir that the gas outlet of the hydrogen chloride preparation device in S1 is respectively arranged with the concentrated sulfuric acid with concatenated two
It is logical, and it is dry in two fluid reservoirs equipped with the concentrated sulfuric acid to pour into hydrogen chloride successively；
S3 prepares three to five minutes that hydrogen chloride starts in S2, the hydrogen chloride gas being collected into separately is deposited, later will preparation
Hydrogen chloride import storage tank in store；Other gases are mixed in hydrogen chloride because just starting preparation, so that hydrogen chloride gas
Purity is not high, and therefore, the not high hydrogen chloride gas of this part purity is rejected；
S4 covers the upper one layer hermetic bag for having niter grieshoch outside the storage tank of S3, is sealed with hermetic bag and collect hydrogen chloride
Storage tank, and by calcium hydroxide and the hcl reaction that has overflowed, avoid the hydrogen chloride gas overflowed corrosion surrounding articles or
It causes harm to the human body, realizes the safe collection of hydrogen chloride；
Hydrogen chloride preparation device in the S1 and S2 include reaction chamber, the sulfuric acid spray head for being fixed on reaction chamber top, by
Pierce into hydrochloric acid conduit, hydrochloric acid spray head, mixing module and the power plant module in reaction chamber lower end center upwards down；The reaction chamber upper end
It is provided with the gas outlet for collecting hydrogen chloride gas, the discharge outlet for discharging dilute sulfuric acid is arranged in reaction chamber lower end center, instead
It answers in the side wall of room side and is provided with square cavity；The hydrochloric acid spray head is mounted on hydrochloric acid conduit upper end, and hydrochloric acid spray head is located at
The positive lower end of sulfuric acid spray head；The mixing module includes that sliding sleeve and stair-stepping sliding squeeze item；The sliding sleeve is set in hydrochloric acid and leads
Guan Shang, sliding sleeve are slidably connected with hydrochloric acid conduit, and sliding sleeve is magnet；One end of the sliding extruding item and sliding sleeve are hinged, and sliding is squeezed
The other end of press strip and reaction chamber are side walls hinged, and sliding squeezes there are four item at least arranges around the sliding sleeve centre of gyration；The sliding
Squeezing item includes multiple bar shaped sliding blocks and drawstring；It is provided with sliding slot on the bar shaped sliding block, passes through cunning between adjacent bar sliding block
Slot is slidably connected and the arrangement that is stepped, one of them is located at the bar shaped sliding block of end and rectangular draw runner is hinged, another is located at
The bar shaped sliding block and reaction chamber of end are side walls hinged；The drawstring avoids two neighboring for connecting two neighboring bar shaped sliding block
The sliding of bar shaped sliding block is detached from；The power plant module includes power lead screw and No.1 sliding block；The power lead screw and No.1 sliding block cloth
It sets at the square cavity of reaction chamber side wall；The No.1 sliding block is slidably matched with square cavity, and No.1 sliding block is magnet；It is described
Power lead screw passes through No.1 sliding block, and power lead screw positive and negative rotation driving No.1 sliding block slidably reciprocates in square cavity and attracts cunning
Set follows sliding, keeps the bar shaped sliding block hinged with sliding sleeve tension or in compression, causes to slide between adjacent bar sliding block.When work,
The concentrated sulfuric acid sprays downwards the concentrated sulfuric acid by sulfuric acid spray head, and concentrated hydrochloric acid is sprayed after the importing of hydrochloric acid conduit by hydrochloric acid spray head, the concentrated sulfuric acid with
Concentrated hydrochloric acid blending, the high dehydrated moisture constantly extracted in hydrochloric acid of the concentrated sulfuric acid, and heat is constantly discharged, to make in hydrochloric acid
Chlorination desorption evolution, hydrogen chloride gas rise when with constantly spray and under concentrated sulfuric acid counter current contacting, fill hydrogen chloride
The drying divided, what is obtained from gas outlet is high-quality hydrogen chloride gas with high purity, that moisture is few, and dilute sulfuric acid is discharged from discharge outlet；Tool
Body, when power lead screw positive and negative rotation makes No.1 sliding block slidably reciprocate in square cavity, No.1 sliding block slides over attraction
Slidably reciprocate on hydrochloric acid conduit, No.1 sliding block will attract sliding sleeve to follow sliding, make the bar shaped sliding block tension hinged with sliding sleeve or by
Pressure, causes to slide between adjacent bar sliding block；After being fallen on after the concentrated sulfuric acid is mixed with concentrated hydrochloric acid in the sliding slot on bar shaped sliding block, phase
Adjacent bar shaped sliding block slides close, the mixture that two bar shaped sliding blocks will be made to squeeze the concentrated sulfuric acid and concentrated hydrochloric acid in sliding slot jointly,
Under sliding between two neighboring bar shaped sliding block is hit, the concentrated sulfuric acid and concentrated hydrochloric acid in sliding slot, which are hit, flies mixing dispersion, thus
It effectively facilitates the concentrated sulfuric acid and constantly extracts moisture in concentrated hydrochloric acid, and constantly discharge heat, so that hydrogen chloride in hydrochloric acid be made to be solved
Evolution is inhaled, the hydrogen chloride of spilling is discharged from gas outlet, realizes that dry hydrogen chloride is collected.
Further, bar shaped sliding block side upper level is provided with blind hole；Be provided in the blind hole ventilation block and
Reset spring, the upper end in the middle part of blind hole offer the through-hole being connected to outside bar shaped sliding block；Right angle is provided on the ventilation block
Hole, ventilation block slid into blind hole through hole will be connected to sliding slot inside and through-hole；The inner wall of the reset spring connection blind hole
With ventilation block；The guide plate concordant with sliding slot upper end is provided on the slot inner sidewall of the sliding slot；The guide plate is in two neighboring item
Shape sliding block close to when enter blind hole and squeeze ventilation block and the block that makes to ventilate is moved to through hole, and sliding slot is after guide plate enters in blind hole
The concentrated sulfuric acid and concentrated hydrochloric acid mixture in closed state, sliding slot discharge after being connected to continuous compression with through-hole to sliding slot.Work
When making, during two neighboring bar shaped sliding block is drawn close, guide plate will enter in blind hole and ventilation block is pushed to slide in blind hole,
The block that makes to ventilate is connected to through-hole and sliding slot when reaching through hole, and enters in blind hole in guide plate and block of ventilating does not reach through hole
When, sliding slot is in closed state, and the concentrated sulfuric acid and concentrated hydrochloric acid mixture in sliding slot will be pressurized, in ventilation block connection through-hole and sliding slot
Afterwards, the concentrated sulfuric acid being pressurized in sliding slot will be squeezed away with concentrated hydrochloric acid by moment, so that the concentrated sulfuric acid is adequately mixed with concentrated hydrochloric acid
It closing and is dehydrated concentrated hydrochloric acid, the hydrogen chloride in concentrated hydrochloric acid overflows, so that the hydrogen chloride gas rate in concentrated hydrochloric acid improves, and chlorine
Change hydrogen can also be continued to be dehydrated from the concentrated sulfuric acid under upper leaching, so that hydrogen chloride is dried, to obtain few excellent of purity is high, moisture
Matter hydrogen chloride gas.
Further, the surface of the power lead screw is provided with two kinds of oppositely oriented screw threads；The mixing module setting
There are two sets, and the mixing module on hydrochloric acid conduit top and the mixing module of hydrochloric acid conduit lower part are arranged symmetrically, two sets of mixing modules
In No.1 sliding block be located at two kinds of screw threads on power lead screw, the rotation of power lead screw makes two No.1s on power lead screw
Sliding block mutually from or slide in opposition.When work, when a part of concentrated sulfuric acid and concentrated hydrochloric acid mixture cover the mixing of hydrochloric acid conduit lower end
When module, the mixture of the concentrated sulfuric acid and concentrated hydrochloric acid is filled in the sliding slot of bar shaped sliding block, and drawing close between adjacent bar sliding block will squeeze
The mixture of the concentrated sulfuric acid and concentrated hydrochloric acid, so that the concentrated sulfuric acid being pressurized in sliding slot will be squeezed away with concentrated hydrochloric acid by moment, to make
It obtains the concentrated sulfuric acid adequately to mix with concentrated hydrochloric acid and be dehydrated concentrated hydrochloric acid, the hydrogen chloride in concentrated hydrochloric acid overflows, in concentrated hydrochloric acid
Hydrogen chloride gas rate improves, and hydrogen chloride can also be continued to be dehydrated from the concentrated sulfuric acid under upper leaching, so that hydrogen chloride is dried, thus
Obtain the few high-quality hydrogen chloride gas of purity is high, moisture.
Further, through-hole upper end on the bar shaped sliding block is fixed to be equipped with casing；The upper end of described sleeve pipe is rotatablely connected
There is cake block, casing is connected to through-hole；Multiple fluid holes are provided on the cake block；Described equal one end of fluid hole and casing connect
Logical, the other end of fluid hole is cut in cake block edge.When work, the strong brine and concentrated sulfuric acid mixture in sliding slot are by from through-hole
After squeezing outlet, is entered in cake block by casing and flown out along fluid hole, because the other end of fluid hole is cut in cake block side
On the one hand edge is conducive to the concentrated sulfuric acid and dense salt so that driving the rotation of cake block when strong brine and concentrated sulfuric acid spiral fly out
Being sufficiently mixed for acid, is dehydrated concentrated hydrochloric acid, is on the other hand conducive to hydrogen chloride and separates with the mixture of concentrated hydrochloric acid and the concentrated sulfuric acid,
So that hydrogen chloride is readily collected.
Further, outgassing groove is provided at the gas outlet；Air parcel is provided with out at the outgassing groove；The air parcel out
Edge be provided with venthole, air parcel falls on outgassing groove under the effect of gravity and blocks gas outlet out, out air parcel
It is moved up by hydrogen chloride gas extruding by gas outlet and venthole will be connected to；The upper end of the power lead screw is provided with impeller, power
Wind spring is provided in the middle part of lead screw；It is described go out air parcel top be air flue, and air flue is logical tangentially pass at impeller after pass to reaction
It is outdoor；Impeller rotation when hydrogen chloride gas flows through, impeller are turned round when hydrogen chloride gas stops outlet by spring coiling resetting.
When work, after reacting indoor hydrogen chloride gas pressure and increasing, hydrogen chloride gas will will push outlet block and move up, out on air parcel
After shifting will so that venthole connection reaction chamber and air flue, hydrogen chloride gas impact on impeller will so that power lead screw rotates, from
And make power lead screw that there is power without motor driven, electric energy has on the one hand been saved, the system of equipment is on the other hand reduced
Cause this；And after hydrogen chloride overflows at air parcel out, hydrogen chloride gas pressure reduction in reaction chamber, air parcel is in self gravity out
Effect is lower and falls and blocks gas outlet, so that hydrogen chloride gas again blow to impeller by of short duration stopping, so that power lead screw
The of short duration source that runs out of steam, so that wind spring will be so that power lead screw inverts when resetting, two No.1s on power lead screw
Sliding block will return, so that two adjacent bar shaped sliding blocks slide away from, wait and react indoor hydrogen chloride gas pressure primary
The rotation of power lead screw is urged after increase, when concentrated hydrochloric acid and the concentrated sulfuric acid are constantly passed through, realizes hydrogen chloride endlessly
Preparation.
Further, elastic doctor blade is provided at the aperture of the blind hole；The upper end of the guide plate is provided with arc groove,
When entering blind hole, the arcuate recess surface on guide plate will be scraped guide plate by elastic doctor blade.When work, the concentrated sulfuric acid and the concentrated sulfuric acid spray
Leaching is lower to fall behind, and the part concentrated sulfuric acid and concentrated hydrochloric acid mixture will be trickled down on the arc groove on guide plate, so that product on arc groove
The concentrated sulfuric acid and concentrated hydrochloric acid mixture are collected together, during guide plate enters blind hole, the elastic doctor blade in blind hole will be recessed arc
Saved bit by bit on slot the concentrated sulfuric acid collapsed with concentrated hydrochloric acid mixture it is winged, so that the concentrated sulfuric acid be promoted adequately to mix with concentrated hydrochloric acid and make concentrated hydrochloric acid
Be dehydrated, hydrogen chloride in concentrated hydrochloric acid overflows so that the hydrogen chloride gas rate in concentrated hydrochloric acid improves, and hydrogen chloride can also by from
The concentrated sulfuric acid under upper leaching continues to be dehydrated, so that hydrogen chloride is dried, to obtain the few high-quality hydrogen chloride gas of purity is high, moisture
Body.
Beneficial effects of the present invention are as follows:
1. the present invention is dry to hydrogen chloride gas by concatenated two fluid reservoirs, by rejecting other impurities in reaction chamber
Gas realizes the few high-quality hydrogen chloride gas preparation of high-purity, moisture；By covering upper one layer outside storage tank with niter grieshoch
Hermetic bag, seal the storage tank for collecting hydrogen chloride with hermetic bag, and by calcium hydroxide and the hydrogen chloride neutralization reaction overflowed,
It avoids the hydrogen chloride gas overflowed corrosion surrounding articles or causes harm to the human body, realize the safe collection of hydrogen chloride.
2. structure of the invention structure is simple, the mixability of the concentrated sulfuric acid and concentrated hydrochloric acid can speed up by mixing module, it can
It is dehydrated the concentrated sulfuric acid sufficiently to concentrated hydrochloric acid, and the hydrogen chloride gas prepared is dried again using the top-down concentrated sulfuric acid, from
And the few high-quality hydrogen chloride gas of purity is high, moisture is prepared, and improve the conversion ratio that concentrated hydrochloric acid is converted into hydrogen chloride gas.
3. the present invention is high dehydrated using the concentrated sulfuric acid, hydrogen chloride gas is produced from hydrochloric acid, improves the benefit of hydrochloric acid greatly
With rate, reduces transport, reduce costs；And it is with high purity, dry with the hydrogen chloride that this method obtains, it is synthesized than general chlor-alkali plant
Hydrogen chloride gas purity it is also high, moisture content is also few；This method produces hydrogen chloride gas, and " the hot desorption method " than generally using is produced
Hydrogen chloride is energy saving, it does not need heat source at all, and can also discharge thermal energy.
Detailed description of the invention
Fig. 1 is flow chart of the method for the present invention；
Fig. 2 is hydrogen chloride preparation device structural schematic diagram of the invention；
Fig. 3 is two neighboring bar shaped sliding block annexation figure of the invention；
Fig. 4 is the cross-sectional view about A-A in Fig. 3；
In figure: reaction chamber 1, gas outlet 11, discharge outlet 12, sulfuric acid spray head 13, hydrochloric acid conduit 14, hydrochloric acid spray head 15, rectangular
Cavity 16, mixing module 2, sliding sleeve 21, bar shaped sliding block 3, sliding slot 31, ventilation block 32, reset spring, through-hole 33, guide plate 34, cake
Block 35, blind hole 36, power plant module 4, power lead screw 41, No.1 sliding block 42, outgassing groove 43, goes out air parcel 44, impeller at fluid hole 351
45, wind spring 46, air flue 47, elastic doctor blade 48, arc groove 49.
Specific embodiment
It is carried out using the method that Fig. 1 to Fig. 4 prepares hydrogen chloride to a kind of sulfuric acid extraction of the invention as described below.
As shown in Figures 1 to 4, the method that a kind of sulfuric acid extraction of the present invention prepares hydrogen chloride, this method step
It is as follows:
S1 is passed through concentrated hydrochloric acid, the sulfuric acid into hydrogen chloride preparation device in the hydrochloric acid conduit into hydrogen chloride preparation device
It is passed through the concentrated sulfuric acid in spray head, carries out hydrogen chloride preparation with hydrogen chloride preparation device；
S2 connects the fluid reservoir that the gas outlet of the hydrogen chloride preparation device in S1 is respectively arranged with the concentrated sulfuric acid with concatenated two
It is logical, and it is dry in two fluid reservoirs equipped with the concentrated sulfuric acid to pour into hydrogen chloride successively；
S3 prepares three to five minutes that hydrogen chloride starts in S2, the hydrogen chloride gas being collected into separately is deposited, later will preparation
Hydrogen chloride import storage tank in store；Other gases are mixed in hydrogen chloride because just starting preparation, so that hydrogen chloride gas
Purity is not high, and therefore, the not high hydrogen chloride gas of this part purity is rejected；
S4 covers the upper one layer hermetic bag for having niter grieshoch outside the storage tank of S3, is sealed with hermetic bag and collect hydrogen chloride
Storage tank, and by calcium hydroxide and the hcl reaction that has overflowed, avoid the hydrogen chloride gas overflowed corrosion surrounding articles or
It causes harm to the human body, realizes the safe collection of hydrogen chloride；
Hydrogen chloride preparation device in the S1 and S2 includes reaction chamber 1, the sulfuric acid spray head for being fixed on 1 top of reaction chamber
13, hydrochloric acid conduit 14, hydrochloric acid spray head 15, mixing module 2 and the power plant module 4 in 1 lower end of reaction chamber center are pierced into from bottom to top；Institute
It states 1 upper end of reaction chamber and is provided with gas outlet 11 for collecting hydrogen chloride gas, the setting of 1 lower end center of reaction chamber is dilute for discharging
The discharge outlet 12 of sulfuric acid is provided with square cavity 16 in the side wall of 1 side of reaction chamber；The hydrochloric acid spray head 15 is mounted on hydrochloric acid and leads
14 upper end of pipe, and hydrochloric acid spray head 15 is located at the positive lower end of sulfuric acid spray head 13；The mixing module 2 includes sliding sleeve 21 and stair-stepping cunning
It is dynamic to squeeze item；The sliding sleeve 21 is set on hydrochloric acid conduit 14, and sliding sleeve 21 is slidably connected with hydrochloric acid conduit 14, and sliding sleeve 21 is magnetic
Iron；One end that the sliding squeezes item is hinged with sliding sleeve 21, slides the other end for squeezing item and reaction chamber 1 is side walls hinged, sliding
It squeezes there are four item at least arranges around 21 centre of gyration of sliding sleeve；It includes multiple bar shaped sliding blocks 3 and drawstring that the sliding, which squeezes item,；Institute
It states and is provided with sliding slot 31 on bar shaped sliding block 3, be slidably connected and the arrangement that is stepped between adjacent bar sliding block 3 by sliding slot 31,
One of them is located at the bar shaped sliding block 3 of end and rectangular draw runner is hinged, another is located at the bar shaped sliding block 3 and reaction chamber 1 of end
It is side walls hinged；The drawstring avoids the two neighboring sliding of bar shaped sliding block 3 from being detached from for connecting two neighboring bar shaped sliding block 3；It is described
Power plant module 4 includes power lead screw 41 and No.1 sliding block 42；The power lead screw 41 and No.1 sliding block 42 are arranged in 1 side of reaction chamber
At the square cavity 16 of wall；The No.1 sliding block 42 is slidably matched with square cavity 16, and No.1 sliding block 42 is magnet；The power
Lead screw 41 pass through No.1 sliding block 42,41 positive and negative rotation of power lead screw driving No.1 sliding block 42 slidably reciprocate in square cavity 16 and
Attract sliding sleeve 21 to follow sliding, keeps the bar shaped sliding block 3 hinged with sliding sleeve 21 tension or in compression, cause between adjacent bar sliding block 3
Sliding.When work, the concentrated sulfuric acid sprays downwards the concentrated sulfuric acid by sulfuric acid spray head 13, and concentrated hydrochloric acid is sprayed after the importing of hydrochloric acid conduit 14 by hydrochloric acid
First 15 spray, and the concentrated sulfuric acid and concentrated hydrochloric acid blend, the high dehydrated moisture constantly extracted in hydrochloric acid of the concentrated sulfuric acid, and constantly discharge
Heat, so that chlorination desorption be made in hydrochloric acid to escape, when hydrogen chloride gas rises with constantly spray and under the concentrated sulfuric acid countercurrently connect
Touching, dries hydrogen chloride adequately, and what is obtained from gas outlet 11 is high-quality hydrogen chloride gas with high purity, that moisture is few, dilute
Sulfuric acid is discharged from discharge outlet 12；Specifically, when 41 positive and negative rotation of power lead screw comes No.1 sliding block 42 in square cavity 16
Return sliding, No.1 sliding block 42 by attract sliding sleeve 21 slidably reciprocate on hydrochloric acid conduit 14, No.1 sliding block 42 will attract sliding sleeve 21 with
With sliding, keep the bar shaped sliding block 3 hinged with sliding sleeve 21 tension or in compression, causes to slide between adjacent bar sliding block 3；Work as the concentrated sulfuric acid
After being fallen on after being mixed with concentrated hydrochloric acid in the sliding slot 31 on bar shaped sliding block 3, adjacent bar sliding block 3 slide it is close, will be so that two items
Shape sliding block 3 squeezes the mixture of the concentrated sulfuric acid and concentrated hydrochloric acid in sliding slot 31, the sliding between two neighboring bar shaped sliding block 3 jointly
Under shock, the concentrated sulfuric acid and concentrated hydrochloric acid in sliding slot 31 hit fly mixing dispersion, thus effectively facilitate the concentrated sulfuric acid constantly extract it is dense
Moisture in hydrochloric acid, and constantly discharge heat, so that hydrogen chloride be made in hydrochloric acid to be desorbed evolution, the hydrogen chloride of spilling is from gas outlet
11 discharges realize that dry hydrogen chloride is collected.
Further, the 3 side upper level of bar shaped sliding block is provided with blind hole 36；Ventilation is provided in the blind hole 36
The upper end of block 32 and reset spring, 36 middle part of blind hole offers the through-hole 33 being connected to outside bar shaped sliding block 3；The ventilation block 32
On be provided with right angle hole, ventilation block 32 is slid into blind hole 36 at through-hole 33 will 31 inside of connection sliding slot and through-hole 33；It is described
Reset spring connects the inner wall and ventilation block 32 of blind hole 36；It is provided on the slot inner sidewall of the sliding slot 31 and holds level with both hands on sliding slot 31
Neat guide plate 34；The guide plate 34 two neighboring bar shaped sliding block 3 close to when enter blind hole 36 squeeze ventilation block 32 and make to ventilate
Block 32 is moved at through-hole 33, and sliding slot 31 is in closed state, the dense sulphur in sliding slot 31 after guide plate 34 enters in blind hole 36
Acid and concentrated hydrochloric acid mixture discharge after being connected to continuous compression with through-hole 33 to sliding slot 31.It is sliding in two neighboring bar shaped when work
During block 3 is drawn close, guide plate 34 will enter in blind hole 36 and ventilation block 32 is pushed to slide in blind hole 36, and ventilation block 32 is made to exist
Connection through-hole 33 and sliding slot 31 when reaching at through-hole 33, and enter in blind hole 36 in guide plate 34 and block 32 of ventilating does not reach through-hole 33
When place, sliding slot 31 is in closed state, and the concentrated sulfuric acid and concentrated hydrochloric acid mixture in sliding slot 31 will be pressurized, logical in the ventilation connection of block 32
After hole 33 and sliding slot 31, the concentrated sulfuric acid being pressurized in sliding slot 31 will be squeezed away with concentrated hydrochloric acid by moment so that the concentrated sulfuric acid and
Concentrated hydrochloric acid adequately mixes and is dehydrated concentrated hydrochloric acid, and the hydrogen chloride in concentrated hydrochloric acid overflows, so that the hydrogen chloride in concentrated hydrochloric acid
Rate of gasification improves, and hydrogen chloride can also be continued to be dehydrated from the concentrated sulfuric acid under upper leaching, so that hydrogen chloride is dried, to obtain pure
The high-quality hydrogen chloride gas that degree is high, moisture is few.
Further, the surface of the power lead screw 41 is provided with two kinds of oppositely oriented screw threads；The mixing module 2 is set
Two sets are equipped with, and the mixing module 2 on 14 top of hydrochloric acid conduit and the mixing module 2 of 14 lower part of hydrochloric acid conduit are arranged symmetrically, two sets
No.1 sliding block 42 in mixing module 2 is located at two kinds of screw threads on power lead screw 41, and the rotation of power lead screw 41 makes power
Two 42 phases of No.1 sliding block on lead screw 41 from or slide in opposition.When work, when a part of concentrated sulfuric acid and concentrated hydrochloric acid mixture are unrestrained
When the mixing module 2 of 14 lower end of persalt conduit, the mixture of the concentrated sulfuric acid and concentrated hydrochloric acid is filled in the sliding slot 31 of bar shaped sliding block 3,
Drawn close between adjacent bar sliding block 3 will squeeze the concentrated sulfuric acid and concentrated hydrochloric acid mixture so that sliding slot 31 in be pressurized the concentrated sulfuric acid with
Concentrated hydrochloric acid will be squeezed away by moment, so that the concentrated sulfuric acid adequately mixes with concentrated hydrochloric acid and is dehydrated concentrated hydrochloric acid, dense salt
Hydrogen chloride in acid overflows, and the hydrogen chloride gas rate in concentrated hydrochloric acid improves, and hydrogen chloride can also be by from the concentrated sulfuric acid under upper leaching
Continue to be dehydrated, so that hydrogen chloride is dried, to obtain the few high-quality hydrogen chloride gas of purity is high, moisture.
Further, 33 upper end of through-hole on the bar shaped sliding block 3 is fixed to be equipped with casing；The upper end of described sleeve pipe, which rotates, to be connected
It is connected to cake block 35, casing is connected to through-hole 33；Multiple fluid holes 351 are provided on the cake block 35；The fluid hole 351
Equal one end is connected to casing, and the other end of fluid hole 351 is cut in 35 edge of cake block.When work, strong brine in sliding slot 31 with
Concentrated sulfuric acid mixture is entered in cake block 35 by casing and is flown out along fluid hole 351 by after squeezing outlet in through-hole 33,
Because the other end of fluid hole 351 is cut in 35 edge of cake block, justify so that being driven when strong brine and concentrated sulfuric acid spiral fly out
Cake block 35 rotates, and is on the one hand conducive to being sufficiently mixed for the concentrated sulfuric acid and concentrated hydrochloric acid, is dehydrated concentrated hydrochloric acid, is on the other hand conducive to
Hydrogen chloride is separated with the mixture of concentrated hydrochloric acid and the concentrated sulfuric acid, so that hydrogen chloride is readily collected.
Further, outgassing groove 43 is provided at the gas outlet 11；Air parcel 44 is provided with out at the outgassing groove 43；Institute
The edge for stating out air parcel 44 is provided with venthole, and air parcel 44 falls on outgassing groove 43 under the effect of gravity and blocks out
Gas outlet 11, air parcel 44 is moved up by hydrogen chloride gas extruding by will be connected to gas outlet 11 and venthole out；The power lead screw 41
Upper end be provided with impeller 45, the middle part of power lead screw 41 is provided with wind spring 46；The top of the air parcel 44 out is air flue 47, and
Air flue 47 passes to outside reaction chamber 1 after leading to tangential pass at impeller 45；The rotation when hydrogen chloride gas flows through of impeller 45, impeller
45 reset revolution by wind spring 46 when hydrogen chloride gas stops outlet.When work, the hydrogen chloride gas pressure in reaction chamber 1 increases
After big, hydrogen chloride gas will will push outlet block 44 and move up, will be so that venthole connection reaction chamber 1 and gas after air parcel 44 moves up out
Road 47, hydrogen chloride gas impact will be so that power lead screw 41 rotate, so that power lead screw 41 is not necessarily to motor on impeller 45
Driving has power, has on the one hand saved electric energy, has on the other hand reduced the manufacturing cost of equipment；And in hydrogen chloride from outlet
After overflowing at block 44, hydrogen chloride gas pressure reduction in reaction chamber 1, air parcel 44 falls and blocks out under self gravitation effect out
Port 11 so that hydrogen chloride gas again blow to impeller 45 by of short duration stopping so that power lead screw 41 it is of short duration lose it is dynamic
Power source, so that wind spring 46 will be so that power lead screw 41 inverts when resetting, two on power lead screw 41 No.1 sliding block 42
It will return, and so that two adjacent bar shaped sliding blocks 3 slide away from, the hydrogen chloride gas pressure in reaction chamber 1 be waited once to increase
The rotation of power lead screw 41 is urged after big, when concentrated hydrochloric acid and the concentrated sulfuric acid are constantly passed through, realizes hydrogen chloride endlessly
Preparation.
Further, elastic doctor blade 48 is provided at the aperture of the blind hole 36；The upper end of the guide plate 34 is provided with arc
Connected in star 49, when entering blind hole 36,49 surface of arc groove on guide plate 34 will be scraped guide plate 34 by elastic doctor blade 48.Work
When, the concentrated sulfuric acid and concentrated sulfuric acid spray is lower falls behind, it is recessed that the part concentrated sulfuric acid with concentrated hydrochloric acid mixture will trickle down the arc on guide plate 34
On slot 49, so that the concentrated sulfuric acid and concentrated hydrochloric acid mixture have been saved bit by bit on arc groove 49, during guide plate 34 enters blind hole 36,
Elastic doctor blade 48 in blind hole 36 will be winged having saved bit by bit the concentrated sulfuric acid on arc groove 49 with concentrated hydrochloric acid mixture and collapsing, to promote
The concentrated sulfuric acid adequately mixes with concentrated hydrochloric acid and is dehydrated concentrated hydrochloric acid, and the hydrogen chloride in concentrated hydrochloric acid overflows, so that in concentrated hydrochloric acid
Hydrogen chloride gas rate improve, and hydrogen chloride can also be continued to be dehydrated from the concentrated sulfuric acid under upper leaching so that hydrogen chloride is dried, from
And obtain the few high-quality hydrogen chloride gas of purity is high, moisture.
Specific workflow is as follows:
When work, the concentrated sulfuric acid sprays downwards the concentrated sulfuric acid by sulfuric acid spray head 13, and concentrated hydrochloric acid is after the importing of hydrochloric acid conduit 14 by salt
Sour spray head 15 sprays, and the concentrated sulfuric acid and concentrated hydrochloric acid blend, the high dehydrated moisture constantly extracted in hydrochloric acid of the concentrated sulfuric acid, and constantly
Discharge heat, so that chlorination desorption be made in hydrochloric acid to escape, when hydrogen chloride gas rises with constantly spray and under the concentrated sulfuric acid it is inverse
Stream contact, dries hydrogen chloride adequately, and what is obtained from gas outlet 11 is high-quality hydrogen chloride gas with high purity, that moisture is few
Body, dilute sulfuric acid are discharged from discharge outlet 12；Specifically, when 41 positive and negative rotation of power lead screw makes No.1 sliding block 42 in square cavity 16
It inside slidably reciprocates, No.1 sliding block 42 will attract sliding sleeve 21 to slidably reciprocate on hydrochloric acid conduit 14, and No.1 sliding block 42 will attract sliding sleeve
21 follow sliding, keep the bar shaped sliding block 3 hinged with sliding sleeve 21 tension or in compression, cause to slide between adjacent bar sliding block 3；When dense
After sulfuric acid is fallen on after mixing with concentrated hydrochloric acid in the sliding slot 31 on bar shaped sliding block 3, adjacent bar sliding block 3 slide it is close, will be so that two
A bar shaped sliding block 3 squeezes the mixture of the concentrated sulfuric acid and concentrated hydrochloric acid in sliding slot 31 jointly, between two neighboring bar shaped sliding block 3
Under sliding is hit, the concentrated sulfuric acid and concentrated hydrochloric acid in sliding slot 31, which are hit, flies mixing dispersion, constantly extracts to effectively facilitate the concentrated sulfuric acid
The moisture in concentrated hydrochloric acid is taken, and constantly discharges heat, so that hydrogen chloride in hydrochloric acid be made to be desorbed evolution, the hydrogen chloride of spilling is from out
Port 11 is discharged, and realizes that dry hydrogen chloride is collected；
After the hydrogen chloride gas pressure in reaction chamber 1 increases, hydrogen chloride gas will will push outlet block 44 and move up, outlet
Block 44 will be so that venthole connection reaction chamber 1 and air flue 47, gas impact will be so that power lead screw 41 on impeller 45 after moving up
On the one hand rotation has been saved electric energy, has on the other hand been reduced so that power lead screw 41 has power without motor driven
The manufacturing cost of equipment；And after hydrogen chloride overflows at air parcel 44 out, hydrogen chloride gas pressure reduction in reaction chamber 1, outlet
Block 44 falls under self gravitation effect blocks gas outlet 11, so that hydrogen chloride gas again blow to impeller 45 by of short duration stopping
Gas, so that the source that runs out of steam that power lead screw 41 is of short duration, so that wind spring 46 will be so that power lead screw 41 when resetting
It inverts, two No.1 sliding blocks 42 on power lead screw 41 will return, so that two adjacent bar shaped sliding blocks 3 slide away from, wait
Hydrogen chloride gas pressure in reaction chamber 1 urges power lead screw 41 after primary increase and rotates, continuous in concentrated hydrochloric acid and the concentrated sulfuric acid
In the case of being passed through, endlessly preparing for hydrogen chloride is realized.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of method that sulfuric acid extraction prepares hydrogen chloride, it is characterised in that: the method steps are as follows:
S1 is passed through concentrated hydrochloric acid, the sulfuric acid spray head into hydrogen chloride preparation device in the hydrochloric acid conduit into hydrogen chloride preparation device
It is inside passed through the concentrated sulfuric acid, carries out hydrogen chloride preparation with hydrogen chloride preparation device；
The gas outlet of hydrogen chloride preparation device in S1 is connected to by S2 with concatenated two fluid reservoirs for being respectively arranged with the concentrated sulfuric acid, and
Pour into hydrogen chloride successively dry in two fluid reservoirs equipped with the concentrated sulfuric acid；
S3 prepares three to five minutes that hydrogen chloride starts in S2, the hydrogen chloride gas being collected into separately is deposited, later by the chlorine of preparation
Change and is stored in hydrogen importing storage tank；
S4 covers the upper one layer hermetic bag for having niter grieshoch outside the storage tank of S3, is sealed with hermetic bag and collect depositing for hydrogen chloride
Storage tank；
Hydrogen chloride preparation device in the S1 and S2 includes reaction chamber (1), the sulfuric acid spray head for being fixed on reaction chamber (1) top
(13), the hydrochloric acid conduit (14) in reaction chamber (1) lower end center, hydrochloric acid spray head (15), mixing module (2) and dynamic are pierced into from bottom to top
Power module (4)；Reaction chamber (1) upper end is provided with the gas outlet (11) for collecting hydrogen chloride gas, reaction chamber (1) lower end
The discharge outlet (12) for discharging dilute sulfuric acid is arranged in center, is provided with square cavity (16) in the side wall of reaction chamber (1) side；Institute
It states hydrochloric acid spray head (15) and is mounted on hydrochloric acid conduit (14) upper end, and hydrochloric acid spray head (15) is located at sulfuric acid spray head (13) positive lower end；Institute
Stating mixing module (2) includes that sliding sleeve (21) and stair-stepping sliding squeeze item；The sliding sleeve (21) is set in hydrochloric acid conduit (14)
On, sliding sleeve (21) is slidably connected with hydrochloric acid conduit (14), and sliding sleeve (21) is magnet；The sliding squeezes one end and the sliding sleeve of item
(21) hingedly, sliding squeeze item the other end and reaction chamber (1) it is side walls hinged, sliding extruding item around sliding sleeve (21) centre of gyration extremely
There are four few arrangements；It includes multiple bar shaped sliding blocks (3) and drawstring that the sliding, which squeezes item,；It is provided on the bar shaped sliding block (3)
Sliding slot (31), is slidably connected by sliding slot (31) between adjacent bar sliding block (3) and the arrangement that is stepped, one of them, which is located at, holds
The bar shaped sliding block (3) in portion and rectangular draw runner are hinged, another is located at the bar shaped sliding block (3) of end and reaction chamber (1) is side walls hinged；
The drawstring avoids two neighboring bar shaped sliding block (3) sliding from being detached from for connecting two neighboring bar shaped sliding block (3)；The power
Module (4) includes power lead screw (41) and No.1 sliding block (42)；The power lead screw (41) and No.1 sliding block (42) are arranged in instead
At the square cavity (16) for answering room (1) side wall；The No.1 sliding block (42) is slidably matched with square cavity (16), No.1 sliding block
It (42) is magnet；The power lead screw (41) passes through No.1 sliding block (42), and power lead screw (41) positive and negative rotation drives No.1 sliding block
(42) it slidably reciprocates in square cavity (16) and sliding sleeve (21) is attracted to follow sliding, make and sliding sleeve (21) hinged bar shaped sliding block
(3) tension or in compression, cause to slide between adjacent bar sliding block (3).
2. the method that a kind of sulfuric acid extraction according to claim 1 prepares hydrogen chloride, it is characterised in that: the bar shaped is sliding
Block (3) side upper level is provided with blind hole (36)；Ventilation block (32) and reset spring, blind hole are provided in the blind hole (36)
(36) upper end in the middle part of offers and the external through-hole (33) being connected to of bar shaped sliding block (3)；It is provided on the ventilation block (32) straight
Corner apertures, ventilation block (32) is slid into blind hole (36) at through-hole (33) will connection sliding slot (31) inside and through-hole (33)；It is described
Reset spring connects inner wall and ventilation block (32) of blind hole (36)；It is provided on the slot inner sidewall of the sliding slot (31) and sliding slot
(31) the concordant guide plate in upper end (34)；The guide plate (34) enters blind hole (36) when two neighboring bar shaped sliding block (3) is close and squeezes
Pressure ventilates block (32) and is moved to ventilation block (32) at through-hole (33), and sliding slot (31) enters in blind hole (36) in guide plate (34)
It is in closed state afterwards, the concentrated sulfuric acid and concentrated hydrochloric acid mixture in sliding slot (31) are by continuous compression to sliding slot (31) and through-hole (33)
It is discharged after connection.
3. the method that a kind of sulfuric acid extraction according to claim 2 prepares hydrogen chloride, it is characterised in that: the power silk
The surface of thick stick (41) is provided with two kinds of oppositely oriented screw threads；The mixing module (2) is provided with two sets, and hydrochloric acid conduit (14)
The mixing module (2) on top and the mixing module (2) of hydrochloric acid conduit (14) lower part are arranged symmetrically, in two sets of mixing modules (2)
No.1 sliding block (42) is located at two kinds of screw threads on power lead screw (41), and power lead screw (41) rotation makes power lead screw (41)
On two No.1 sliding blocks (42) mutually from or slide in opposition.
4. the method that a kind of sulfuric acid extraction according to claim 3 prepares hydrogen chloride, it is characterised in that: the bar shaped is sliding
Through-hole (33) upper end on block (3) is fixed to be equipped with casing；The upper end of described sleeve pipe is rotatably connected to cake block (35), casing and logical
Hole (33) connection；Multiple fluid holes (351) are provided on the cake block (35)；The fluid hole (351) one end and casing
Connection, the other end of fluid hole (351) are cut in cake block (35) edge.
5. the method that a kind of sulfuric acid extraction according to claim 3 prepares hydrogen chloride, it is characterised in that: the gas outlet
(11) outgassing groove (43) are provided at；Air parcel (44) are provided with out at the outgassing groove (43)；The edge of air parcel (44) out
Place is provided with venthole, and air parcel (44) falls on outgassing groove (43) under the effect of gravity and blocks gas outlet (11) out,
Air parcel (44) is moved up by hydrogen chloride gas extruding by will be connected to gas outlet (11) and venthole out；The power lead screw (41) it is upper
End is provided with impeller (45), and wind spring (46) are provided in the middle part of power lead screw (41)；The top of air parcel (44) out is air flue
(47), and air flue (47) is logical tangentially pass at impeller (45) after pass to reaction chamber (1) outside；The impeller (45) is in hydrogen chloride gas
Rotation when flowing through, impeller (45), which is resetted when hydrogen chloride gas stops outlet by wind spring (46), to turn round.
6. the method that a kind of sulfuric acid extraction according to claim 4 prepares hydrogen chloride, it is characterised in that: the blind hole
(36) elastic doctor blade (48) are provided at aperture；The upper end of the guide plate (34) is provided with arc groove (49), guide plate (34)
When entering blind hole (36), arc groove (49) surface on guide plate (34) will be scraped by elastic doctor blade (48).
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| CN201811627074.2A CN109399569B (en) | 2018-12-28 | 2018-12-28 | Method for preparing hydrogen chloride by sulfuric acid extraction method |
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| CN201811627074.2A CN109399569B (en) | 2018-12-28 | 2018-12-28 | Method for preparing hydrogen chloride by sulfuric acid extraction method |
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|---|---|---|---|---|
| CN2161602Y (en) * | 1993-06-26 | 1994-04-13 | 苏州硫酸厂 | Hydrogen chloride generator by sulphuric acid extracting method |
| US20010026787A1 (en) * | 1997-07-01 | 2001-10-04 | Stauffer John E. | Manufacture of hydrogen chloride from salt and sulfuric acid |
| CN1562732A (en) * | 2004-04-01 | 2005-01-12 | 上海交通大学 | Method for preparing strong hydrochloric acid through extracting and distilling deposed dilute hydrochloric acid semi continuously |
| CN102515105A (en) * | 2011-10-25 | 2012-06-27 | 山东农业大学 | Technological method for concentrating dilute hydrochloric acid through continuous extraction and rectification |
| CN105565272A (en) * | 2015-11-30 | 2016-05-11 | 陕西环珂生物科技有限公司 | Method for preparing high-purity hydrogen chloride gas |
| CN108383085A (en) * | 2018-05-15 | 2018-08-10 | 杭州东日节能技术有限公司 | A kind of continuity method hydrochloric acid full stripping produces the device and method of hydrogen chloride gas |
-
2018
- 2018-12-28 CN CN201811627074.2A patent/CN109399569B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2161602Y (en) * | 1993-06-26 | 1994-04-13 | 苏州硫酸厂 | Hydrogen chloride generator by sulphuric acid extracting method |
| US20010026787A1 (en) * | 1997-07-01 | 2001-10-04 | Stauffer John E. | Manufacture of hydrogen chloride from salt and sulfuric acid |
| CN1562732A (en) * | 2004-04-01 | 2005-01-12 | 上海交通大学 | Method for preparing strong hydrochloric acid through extracting and distilling deposed dilute hydrochloric acid semi continuously |
| CN102515105A (en) * | 2011-10-25 | 2012-06-27 | 山东农业大学 | Technological method for concentrating dilute hydrochloric acid through continuous extraction and rectification |
| CN105565272A (en) * | 2015-11-30 | 2016-05-11 | 陕西环珂生物科技有限公司 | Method for preparing high-purity hydrogen chloride gas |
| CN108383085A (en) * | 2018-05-15 | 2018-08-10 | 杭州东日节能技术有限公司 | A kind of continuity method hydrochloric acid full stripping produces the device and method of hydrogen chloride gas |
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Effective date of registration: 20201019 Address after: 239200 C area, industrial new district, Lai County, Anhui, Chuzhou Applicant after: CHUZHOU SANHE FIBER MANUFACTURING Co.,Ltd. Address before: 100089 Department of Mechanical and Electrical Engineering, Beijing University of Technology, No. 5 South Street, Zhongcun, Haidian District, Beijing Applicant before: Xie Zihao |
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