CN101665244B - Graphite block hole type down-firing triad hydrochloric acid synthetic furnace - Google Patents
Graphite block hole type down-firing triad hydrochloric acid synthetic furnace Download PDFInfo
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- CN101665244B CN101665244B CN2009100673941A CN200910067394A CN101665244B CN 101665244 B CN101665244 B CN 101665244B CN 2009100673941 A CN2009100673941 A CN 2009100673941A CN 200910067394 A CN200910067394 A CN 200910067394A CN 101665244 B CN101665244 B CN 101665244B
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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
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Abstract
The invention relates to a graphite block hole type down-firing triad hydrochloric acid synthetic furnace which is characterized by comprising a furnace base fixedly connected to the lower end of a furnace body; the furnace base is sequentially provided with a graphite base, a plurality of graphite block hole monomers, a gas-liquid distribution plate and a graphite furnace top cover, wherein the graphite block hole monomers are provided with a plurality of cooling transverse holes and cooling cavities partitioned by partition plates; the furnace body is internally provided with a gas synthetic cooling absorption section and a gas-liquid mixing chamber; a combined acid diluting pipe is arranged above the gas-liquid distribution plate, and a through hole of the gas-liquid distribution plate is provided with a graphite absorption weir; the gas-liquid mixing chamber, the graphite absorption weir, a vertical hole of the gas-liquid distribution plate, accumulated vertical holes of the plurality of graphite block hole monomers, an acid collection tank of the graphite base and a finished acid outlet are communicated to form a finished acid channel; and a lamp cap is arranged in the center of the furnace base. The invention has the advantages of compact and reasonable structure, small height, little occupied space, high acid preparation efficiency, low acid discharging temperature, good quality, energy saving and environment protection, convenient operation and maintenance, low cost, safe use, long service life, and the like.
Description
Technical field
The present invention relates to the hydrochloric acid synthesizer, is a kind of graphite block hole type down-firing triad hydrochloric acid synthetic furnace.
Background technology
The synthetic included a set of equipment of acid-making process relieving haperacidity of existing employing has: the three-in-one hydrochloric acid synthetic furnace of graphite system, tail gas tower and hydraulic ejector, this stove are last igniting, 8 meters of the overall heights of the three-in-one hydrochloric acid synthetic furnace of graphite system, its required factory building is five floor height, the three-in-one hydrochloric acid synthetic furnace of graphite system is installed in the 3rd buildings, operates in the 3rd buildings half, and tail gas tower is contained in the 5th buildings, its weak point is, the cost height, operation easier is big, and explosive is damaged when igniting and blowing out, work-ing life is low, exists potential safety hazard.
The existing employing in the synthetic acid-making process relieving haperacidity, a kind of graphite tubulation formula down-firing hydrochloric acid synthetic furnace is arranged, its gas is synthetic, cool off and absorb three-in-one section by combining after the more piece short tube bonding, in the lamp holder of down-firing adopts, outer tube, interior pipe advances chlorine, outer tube advances hydrogen, its weak point is, because gas is synthetic, the graphite body coefficient of linear expansion that cools off and absorb three-in-one section bonding used resin and short tube is inconsistent, so causing bonding to throw off reveals, it is low that carbon tube is withstand voltage, prerequisite has determined that hydrochloric acid synthetic furnace work-ing life of shell and tube down-firing is short, easy-maintaining not, and project organization has determined stress condition poor, chlorine, hydrogen mixed firing, synthetic effect is poor, relieving haperacidity efficient is low, goes out sour temperature height, and is of poor quality.
The graphite system of existing graphite salt manufacturing acid synthetic furnace absorbs the weir and adopts the graphite straight tube, straight tube is threaded with distribution plate, its weak point is, unreasonable structure, the thread root unfairness of straight tube causes the thread root plane of straight tube and distribution plate threaded upper end face not to form thus and is tightly connected, exist the phenomenon of leakage at connecting portion, directly influence film-formation result, its yield polymer films is low, specific absorption is low, and work-ing life is short.
Summary of the invention
Technical problem to be solved by this invention is, prior art is carried out inventive combination and substantial improvements, a kind of compact construction, rationally is provided, highly low, floor space is little, relieving haperacidity efficient height, it is low to go out sour temperature, quality is good, and energy-conserving and environment-protective are convenient to operation, are safeguarded, cost is low, graphite block hole type down-firing triad hydrochloric acid synthetic furnace safe in utilization, that the life-span is long.
The technical scheme that solves its technical problem employing is: a kind of graphite block hole type down-firing triad hydrochloric acid synthetic furnace, it is characterized in that, it comprises body of heater 1, body of heater 1 lower end is fixed with furnace foundation seat 2, be equipped with graphite base 4 on the furnace foundation seat 2 in body of heater 1, accumulation is equipped with some graphite clamp dog hole monomers 8 successively on graphite base 4, on graphite clamp dog hole monomer 8 topmost, be equipped with gas-liquid distribution plate 21, on gas-liquid distribution plate 21, be equipped with graphite furnace top cover 24, graphite clamp dog hole monomer 8 is provided with cooling cavity 10 with dividing plate 30 separations and several cooling transverse holes 11 that communicate with cooling cavity 10, body of heater 1 internal perisporium and graphite base 4, accumulating the spacing that is equipped with some graphite clamp dog hole monomers 8 and gas-liquid distribution plate 21 periphery walls successively is second cooling water jecket 9, the spacing of body of heater 1 internal perisporium and graphite furnace top cover 24 periphery walls is first cooling water jecket 26, plane to the gas-liquid distribution plate 21, plane is the synthetic cooling down absorption segment 19 of gas on the graphite base 4, plane to graphite furnace top cover 24 upper ends are gas-liquid mixed chamber 20 on the gas-liquid distribution plate 21, above gas-liquid distribution plate 21, be provided with built-up type diluted acid pipe 27, the graphite system that all is equipped with in several finished acid through holes of gas-liquid distribution plate 21 absorbs weir 22, by gas-liquid mixed chamber 20, graphite system absorbs weir 22, the vertical core of gas-liquid distribution plate 21, the finished acid passage that the vertical core of some graphite clamp dogs of cumulative hole monomer 8 and the acid colleciton groove 13 of graphite base 4 and finished acid outlet c2 communicate and constitute, the lamp holder 17 that stretches into the synthetic cooling down absorption segment 19 of gas is housed at the center of furnace foundation seat 2, and the synthetic cooling down absorption segment 19 of the gas at lamp holder 17 places is combustion chamber 18.
Described graphite system absorbs weir 22 and comprises straight tube 31, be provided with in the upper end of straight tube 31 with its internal diameter and be tangent line 4 five equilibriums, 45 ° v-notch 32, be provided with the screw thread 33 that diameter is slightly less than the straight tube external diameter in the lower end of straight tube 31, combining the circumferential wall at position with screw thread 33 on, straight tube 31 notch 34 is set, diameter≤screw thread 33 internal diameters of described notch 34.
The straight tube 31 that described graphite system absorbs weir 22 is a resol extruded anisotropic graphite pipe.
Described lamp holder 17 comprises hydrogen pipe core 5, is the gap and is placed on chlorine sleeve pipe 6 on the hydrogen pipe core 5, is the gap and is placed on hydrogen outer tube 7 on the chlorine sleeve pipe 6.
Be respectively equipped with first visor 14 and second visor 15 at synthetic cooling down absorption segment 19 different heights of the gas that is positioned at 18 places, combustion chamber.
Between described furnace foundation seat 2 and graphite base 4, between graphite base 4 and the graphite clamp dog hole monomer 8 that is connected, some graphite clamp dogs of cumulative hole monomer 8 each other successively, between graphite clamp dog hole monomer 8 topmost and gas-liquid distribution plate 21, between gas-liquid distribution plate 21 and graphite furnace top cover 24, all seal by flexible graphite gasket 29.
In the venting g of described graphite system furnace top cover 24, be provided with explosion-proof card 25.
The advantage applies that graphite block hole type down-firing triad hydrochloric acid synthetic furnace of the present invention had exists:
1. because employing is equipped with the lamp holder that stretches in the synthetic cooling down absorption segment combustion chamber of gas at the center of furnace foundation seat, lamp holder is by the hydrogen pipe core, being the gap is placed on the chlorine sleeve pipe on the hydrogen pipe core and is the gap and be placed on hydrogen outer tube on the chlorine sleeve pipe, promptly, outer tube advances hydrogen, intervalve advances the down-firing structure of chlorine, gas mixed firing is effective, synthetic fast, but positive pressure operation, greatly reduce the whole height of body of heater, make graphite block hole type down-firing triad hydrochloric acid synthetic furnace be installed in second floor, operation room is also at second floor, be contained in the 3rd buildings with the supporting tail gas tower that is connected of the venting of graphite system furnace top cover, 6 meters of whole plant overall heights, highly low, floor space is little, be convenient to operation, safeguard that cost is low.
2. owing to the reduction of body of heater whole height, reduce the transfer pressure of cooling circulating water, can select the hydraulic jet pump of less lift.
3. accumulate being equipped with some graphite clamp dog hole monomers on the graphite base successively, be the cord wood bridging arrangement, compact construction, reasonable, easy access, maintenance; Plane to the gas-liquid distribution plate, plane is the synthetic cooling down absorption segment of gas on the graphite base, makes gas synthesize, cool off and absorbs three-in-one; The synthetic monomeric center, cooling down absorption segment graphite clamp dog hole of gas is a gas passage, second cooling water jecket, has the cooling cavity that dividing plate separates and several cooling transverse holes that communicate with the cooling cavity are cooling-water duct, make the heat exchange of water coolant baffling, its heat interchanging area is big, effective.
4. by the gas-liquid mixed chamber, graphite system absorbs the weir, the vertical core of gas-liquid distribution plate, the monomeric vertical core in some graphite clamp dogs of cumulative hole, the finished acid passage that the acid colleciton groove of graphite base and finished acid outlet communicate and constitute, the upper end of weir straight tube is provided with and its internal diameter is tangent line 4 five equilibriums because graphite system absorbs, 45 ° v-notch, straight tube combines the circumferential wall at position with screw thread on, notch is set, the thread root plane that makes straight tube and distribution plate threaded upper end face be smooth to contact to have formed and is tightly connected, effectively avoid in the screw connection point leakage, the absorption liquid level that absorbs the weir is on same horizontal plane, the suitable v-notch of absorption liquid is along straight tube inwall curl, high flow rate flows downward, make the reaction of absorption liquid and hydrogen chloride gas thorough mixing, the heat exchange effect is better, absorb the weir and formed thin film, gas-liquid fully contacts, reach best assimilation effect, it is good to have film-formation result, yield polymer films, the equal advantages of higher of specific absorption.
5. adopt resol extruded anisotropic graphite pipe because graphite system absorbs the weir, have the advantage of long service life.
6. owing to be provided with the gas-liquid distribution plate, the graphite system that is connected on the gas-liquid distribution plate absorbs the weir, and can evenly carry out gas-liquid and distribute, be again the sealing member of cooling-water duct and gas-liquid mixed chamber, still grip the some monomeric Connection Blocks in graphite clamp dog hole.
7. owing in the venting of graphite system furnace top cover, be provided with explosion-proof card, smash lamp holder in case prevent the rupture disk of superpressure venting from damaging.
8. owing to be respectively equipped with first visor and second visor at the synthetic cooling down absorption segment different heights of the gas that is positioned at the place, combustion chamber, observe when first visor is used for trouble-free burning usually, second visor is used for the observation of abnomal condition, be more convenient for observing, so that better grasp situation in the stove from different heights.
9. owing to all adopt flexible graphite gasket as sealing member between the graphite piece, flexible graphite gasket is promptly acidproof, high temperature resistant again, and coefficient of linear expansion equates to have good sealing effectiveness with the graphite body coefficient of linear expansion substantially, the reliable and long service life of sealing.
10. have relieving haperacidity efficient height, it is low to go out sour temperature, and quality is good, energy-conserving and environment-protective, advantage such as safe in utilization, life-span is long.
Description of drawings
Fig. 1 is a graphite block hole type down-firing triad hydrochloric acid synthetic furnace structure cross-sectional schematic.
Fig. 2 is graphite clamp dog hole monomer 8 structural representations (the A-A sectional views of Fig. 3).
Fig. 3 is the schematic top plan view of Fig. 2.
Fig. 4 absorbs weir 22 structure cross-sectional schematic for graphite system.
Fig. 5 is the schematic top plan view of Fig. 2.
Fig. 6 is a local I I enlarged diagram among Fig. 1.
Among the figure: 1 body of heater, 2 furnace foundation seats, 3 supporting legs, 4 graphite bases, 5 hydrogen pipe cores, 6 chlorine sleeve pipes, 7 hydrogen outer tubes, 8 graphite clamp dog hole monomers, 9 second water jackets, 10 cooling cavitys, 11 cooling transverse holes, 12 go out sour through hole, 13 acid colleciton grooves, 14 first visor mouths, 15 second visor mouths, 16 fire doors, 17 lamp holders, 18 combustion chambers, 19 synthetic cooling down absorption segments, gas-liquid mixed chambers 20,21 gas-liquid distribution plates, 22 graphite systems absorb weir, 23 temperature tubes, 24 graphite system furnace top covers, 25 explosion-proof cards, 26 first water jackets, 27 diluted acid compound tubes, 29 flexible graphite gaskets, 30 dividing plates, 31 straight tubes, 32V type otch, 33 screw threads, 34 notches, a1 first hydrogen inlet, a2 second hydrogen inlet, b chlorine inlet, c1 condensation acid outlet, the outlet of c2 finished acid, d sewage draining exit, f first entrance of cooling water, g venting, h diluted acid inlet, 1 outlet of i first water coolant, k second entrance of cooling water, r second cooling water outlet.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described.
With reference to Fig. 1-3, graphite block hole type down-firing triad hydrochloric acid synthetic furnace of the present invention comprises body of heater 1, and body of heater 1 lower end is fixed with furnace foundation seat 2, and furnace foundation seat 2 lower ends are fixed with supporting leg 3.Be equipped with graphite base 4 on the furnace foundation seat 2 in body of heater 1, accumulation is equipped with some graphite clamp dog hole monomers 8 successively on graphite base 4, is equipped with gas-liquid distribution plate 21 on graphite clamp dog hole monomer 8 topmost, is equipped with graphite furnace top cover 24 on gas-liquid distribution plate 21.The temperature tube 23 that stretches into gas-liquid mixed chamber 20 is set on body of heater 1.Graphite clamp dog hole monomer 8 is provided with cooling cavity 10 with dividing plate 30 separations and several cooling transverse holes 11 that communicate with cooling cavity 10.Body of heater 1 internal perisporium and graphite base 4, the accumulation spacing that is equipped with some graphite clamp dog hole monomers 8 and gas-liquid distribution plate 21 periphery walls is second cooling water jecket 9 successively.On body of heater 1, be provided with the second entrance of cooling water k and the second cooling water outlet r that are connected with second cooling water jecket 9.The spacing of body of heater 1 internal perisporium and graphite furnace top cover 24 periphery walls is first cooling water jecket 26.On body of heater 1, be provided with the first entrance of cooling water f and first water coolant, the 1 outlet i that are communicated with first cooling water jecket 26.Plane to the gas-liquid distribution plate 21, plane is the synthetic cooling down absorption segment 19 of gas on the graphite base 4.Plane to graphite furnace top cover 24 upper ends are gas-liquid mixed chamber 20 on the gas-liquid distribution plate 21.The built-up type diluted acid pipe 27 that is provided with above gas-liquid distribution plate 21 has diluted acid inlet h.The graphite system that all is equipped with in several finished acid through holes of gas-liquid distribution plate 21 absorbs weir 22.Absorb vertical core and the acid colleciton groove 13 of graphite base 4 and the finished acid passage that finished acid outlet c2 communicates and constitutes of weir 22, the vertical core of gas-liquid distribution plate 21, some graphite clamp dogs of cumulative hole monomer 8 by gas-liquid mixed chamber 20, graphite system.The lamp holder 17 that stretches into the synthetic cooling down absorption segment 19 of gas is housed at the center of furnace foundation seat 2.Described lamp holder 17 comprises hydrogen pipe core 5, is the gap and is placed on chlorine sleeve pipe 6 on the hydrogen pipe core 5, is the gap and is placed on hydrogen outer tube 7 on the chlorine sleeve pipe 6.Hydrogen outer tube 7 is communicated with the first hydrogen inlet a1, and hydrogen pipe core 5 is communicated with the second hydrogen inlet a2, and chlorine sleeve pipe 6 is communicated with chlorine inlet b.In the synthetic cooling down absorption segment 19 of the gas at lamp holder 17 places is combustion chamber 18.On furnace foundation seat 2, be provided with the condensation acid outlet c1 that is communicated with combustion chamber 18.On furnace foundation seat 2, be provided with the sewage draining exit d that is connected with second cooling water jecket 9.Be respectively equipped with first visor 14, second visor 15 and fire door 16 at synthetic cooling down absorption segment 19 different heights of the gas that is positioned at 18 places, combustion chamber.In the venting g of described graphite system furnace top cover 24, be provided with explosion-proof card 25.
With reference to Figure 4 and 5, described graphite system absorbs weir 22 and comprises straight tube 31, be provided with in the upper end of straight tube 31 with its internal diameter and be tangent line 4 five equilibriums, 45 ° v-notch 32, be provided with the screw thread 33 that diameter is slightly less than the straight tube external diameter in the lower end of straight tube 31, combining the circumferential wall at position with screw thread 33 on, straight tube 31 notch 34 is set, diameter≤screw thread 33 internal diameters of described notch 34.The straight tube 31 that described graphite system absorbs weir 22 is a resol extruded anisotropic graphite pipe.
With reference to Fig. 1 and 6, between described furnace foundation seat 2 and graphite base 4, between graphite base 4 and the graphite clamp dog hole monomer 8 that is connected, some graphite clamp dogs of cumulative hole monomer 8 each other successively, between graphite clamp dog hole monomer 8 topmost and gas-liquid distribution plate 21, between gas-liquid distribution plate 21 and graphite furnace top cover 24, all seal by flexible graphite gasket 29.
Graphite block hole type down-firing triad hydrochloric acid synthetic furnace model machine of the present invention, through 10 months trial run, every technical indicator met design requirement, and reached standard code, had realized the described technique effect of goal of the invention.
Claims (7)
1. graphite block hole type down-firing triad hydrochloric acid synthetic furnace, it is characterized in that: it comprises body of heater (1), be fixed with furnace foundation seat (2) in the lower end of body of heater (1), be equipped with graphite base (4) on the furnace foundation seat (2) in body of heater (1), accumulation is equipped with some graphite clamp dog hole monomers (8) successively on graphite base (4), on graphite clamp dog hole monomer (8) topmost, be equipped with gas-liquid distribution plate (21), on gas-liquid distribution plate (21), be equipped with graphite furnace top cover (24), graphite clamp dog hole monomer (8) is provided with (30) the cooling cavity (10) separated that has dividing plate and several cooling transverse holes (11) that communicate with cooling cavity (10), body of heater (1) internal perisporium and graphite base (4), accumulating the spacing that is equipped with some graphite clamp dog hole monomers (8) and gas-liquid distribution plate (21) periphery wall successively is second cooling water jecket (9), the spacing of body of heater (1) internal perisporium and graphite furnace top cover (24) periphery wall is first cooling water jecket (26), it is the synthetic cooling down absorption segment (19) of gas that the last plane of graphite base (4) to gas-liquid distribution plate (21) is gone up the plane, it is gas-liquid mixed chamber (20) that gas-liquid distribution plate (21) is gone up plane to graphite furnace top cover (24) upper end, be provided with built-up type diluted acid pipe (27) in gas-liquid distribution plate (21) top, the graphite system that all is equipped with in several finished acid through holes of gas-liquid distribution plate (21) absorbs weir (22), by gas-liquid mixed chamber (20), graphite system absorbs weir (22), the vertical core of gas-liquid distribution plate (21), the finished acid passage that the acid colleciton groove (13) of the vertical core of some graphite clamp dogs of cumulative hole monomer (8) and graphite base (4) and finished acid outlet (c2) communicate and constitute, the lamp holder (17) that stretches into the synthetic cooling down absorption segment (19) of gas is housed at the center of furnace foundation seat (2), and the synthetic cooling down absorption segment (19) of the gas at lamp holder (17) place is combustion chamber (18).
2. graphite block hole type down-firing triad hydrochloric acid synthetic furnace according to claim 1, it is characterized in that: described graphite system absorbs weir (22) and comprises straight tube (31), be provided with in the upper end of straight tube (31) with its internal diameter and be tangent line 4 five equilibriums, 45 ° v-notch (32), be provided with the screw thread (33) that diameter is slightly less than the straight tube external diameter in the lower end of straight tube (31), combining the circumferential wall at position with screw thread (33) on, straight tube (31) notch (34) is set, diameter≤screw thread (33) internal diameter of described notch (34).
3. graphite block hole type down-firing triad hydrochloric acid synthetic furnace according to claim 2 is characterized in that: the straight tube (31) that described graphite system absorbs weir (22) is a resol extruded anisotropic graphite pipe.
4. graphite block hole type down-firing triad hydrochloric acid synthetic furnace according to claim 1, it is characterized in that: described lamp holder (17) comprises hydrogen pipe core (5), be the gap and be placed on chlorine sleeve pipe (6) on the hydrogen pipe core (5), be the gap and be placed on hydrogen outer tube (7) on the chlorine sleeve pipe (6).
5. graphite block hole type down-firing triad hydrochloric acid synthetic furnace according to claim 1 is characterized in that: be respectively equipped with first visor (14) and second visor (15) at synthetic cooling down absorption segment (19) different heights of the gas that is positioned at place, combustion chamber (18).
6. graphite block hole type down-firing triad hydrochloric acid synthetic furnace according to claim 1, it is characterized in that: between described furnace foundation seat (2) and graphite base (4), between graphite base (4) and the graphite clamp dog hole monomer (8) that is connected, some graphite clamp dogs of cumulative hole monomer (8) each other successively, between graphite clamp dog hole monomer (8) topmost and gas-liquid distribution plate (21), between gas-liquid distribution plate (21) and graphite furnace top cover (24), all seal by flexible graphite gasket (29).
7. graphite block hole type down-firing triad hydrochloric acid synthetic furnace according to claim 1 is characterized in that: be provided with explosion-proof card (25) in the venting (g) of described graphite system furnace top cover (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100673941A CN101665244B (en) | 2009-08-05 | 2009-08-05 | Graphite block hole type down-firing triad hydrochloric acid synthetic furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100673941A CN101665244B (en) | 2009-08-05 | 2009-08-05 | Graphite block hole type down-firing triad hydrochloric acid synthetic furnace |
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| CN101665244A CN101665244A (en) | 2010-03-10 |
| CN101665244B true CN101665244B (en) | 2010-12-29 |
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| CN2009100673941A Expired - Fee Related CN101665244B (en) | 2009-08-05 | 2009-08-05 | Graphite block hole type down-firing triad hydrochloric acid synthetic furnace |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350068B (en) * | 2011-07-11 | 2013-08-14 | 宁晓初 | Falling film evaporation reboiler |
| CN103041605A (en) * | 2013-01-01 | 2013-04-17 | 宁晓初 | High-efficiency internal circulation evaporation separation tower |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2950180A (en) * | 1957-03-22 | 1960-08-23 | Basf Ag | Chemical reactor tower |
| CN201458724U (en) * | 2009-08-05 | 2010-05-12 | 宁永林 | Graphite block cellular type down-firing three-in-one hydrochloric synthetic furnace |
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2009
- 2009-08-05 CN CN2009100673941A patent/CN101665244B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2950180A (en) * | 1957-03-22 | 1960-08-23 | Basf Ag | Chemical reactor tower |
| CN201458724U (en) * | 2009-08-05 | 2010-05-12 | 宁永林 | Graphite block cellular type down-firing three-in-one hydrochloric synthetic furnace |
Non-Patent Citations (3)
| Title |
|---|
| JP昭57-17403A 1982.01.29 |
| 周杰 等.石墨制三合一盐酸合成炉现状.《四川化工与腐蚀控制》.2000,第3卷(第1期),第52-54页. |
| 周杰等.石墨制三合一盐酸合成炉现状.《四川化工与腐蚀控制》.2000,第3卷(第1期),第52-54页. * |
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