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CN-121988261-A - Industrial pressure reaction kettle and synthetic method of dichlorobutene

CN121988261ACN 121988261 ACN121988261 ACN 121988261ACN-121988261-A

Abstract

The invention relates to the technical field of reaction kettles and discloses an industrial pressure reaction kettle and a method for synthesizing dichlorobutene, which comprises a first kettle body and a second kettle body which are identical in structure, wherein rectangular openings are formed in the side surfaces of the first kettle body and the second kettle body, flange frames with L-shaped cross sections are connected to the rectangular openings, barrier strips are connected to the inner horizontal sections of the flange frames, a containing cavity is formed between the two barrier strips, a light guide component is arranged in the containing cavity, the light guide component can emit blue light LEDs or white light LEDs to carry out illumination chlorination on materials in the kettle body, a rectangular frame seat is fixed between the two flange frames through connecting bolts, and the light guide component is arranged in the containing cavity in a sealing mode.

Inventors

  • SUN JINGYU

Assignees

  • 中胶(内蒙古)新材料有限责任公司
  • 晋胶高新技术(上海)有限公司

Dates

Publication Date
20260508
Application Date
20260408

Claims (10)

  1. 1. The utility model provides an industrial pressure reaction kettle, including first cauldron body (1) and second cauldron body (2), first cauldron body (1) and second cauldron body (2) structure are the same, the side of first cauldron body (1) is the pipe form, the top surface center of first cauldron body (1) is connected with first pivot (3) through the axle seal, first pivot (3) are connected with first actuating mechanism (4) that are used for driving it pivoted, stirring paddle (5) are installed to first pivot (3) lateral wall that are located the cauldron body, inlet pipe (6) and intake pipe (7) are installed to the top surface of first cauldron body (1), discharging pipe (8) are installed to the side wall of first cauldron body (1), the lateral wall of first cauldron body (1) is connected with clamp sleeve (9), the upper lateral wall of clamp sleeve (9) is connected with first body (10), the bottom of clamp sleeve (9) is connected with second pipe (11), its characterized in that, rectangular mouth (12) have all been seted up to the side of first pivot (3) lateral wall that is located the cauldron body (2), rectangular mouth (12) are connected with each other (13) and are connected with flange (14) in shape, flange (14) form between two flange section (13) and are connected with flange section (16) and are connected with one another, flange section (15), the light guide component (16) can emit blue light or white light to carry out illumination chlorination on materials in the kettle body, a rectangular frame seat (18) is fixed in a gap between the two flange frames (13) through a connecting bolt (17), and the rectangular frame seat (18) enables the light guide component (16) to be installed in the accommodating cavity (15) in a sealing mode.
  2. 2. The industrial pressure reaction kettle according to claim 1, characterized in that the side walls of the feed pipe (6) and the air inlet pipe (7) are connected with a first hinging seat (23), a second hinging seat (24) is hinged on the first hinging seat (23), a pipe cover (25) is connected on the second hinging seat (24), three third hinging seats (26) which are arranged at intervals of 90 degrees along the circumferential direction are hinged on the side walls of the feed pipe (6) and the air inlet pipe (7), a U-shaped fastener (27) is hinged on the third hinging seats (26), a positioning bolt (28) is connected on the fastener (27) in a threaded manner, and a flange (29) for the positioning bolt (28) to extrude to seal the feed pipe (6) and the air inlet pipe (7) is connected on the side wall of the pipe cover (25).
  3. 3. The industrial pressure reaction kettle according to claim 1, characterized in that the light guide assembly (16) comprises a light guide plate (33), the light guide plate (33) is matched with the accommodating cavity (15), a first sealing ring (34) is installed between the light guide plate (33) and the barrier strip (14), a first groove (35) which is equidistantly arranged is formed in one side surface of the light guide plate (33), an LED lamp (36) is installed in the first groove (35), reflecting plates (37) are connected to the other 3 side surfaces of the light guide plate (33), the LED lamp (36) comprises a diode assembly (38), and the diode assembly (38) is packaged through an epoxy resin lens (39).
  4. 4. An industrial pressure reactor according to claim 3, characterized in that the gap between the two jackets (9) is connected with a first shell (55), the first shell (55) is provided with an inlet and an outlet, the inlet of the first shell (55) is connected with a purifying box (56), the port of the purifying box (56) is fixed with a cover plate (57) through bolts, the side wall of the purifying box (56) is provided with air inlets (58) which are arranged at equal intervals, two symmetrically arranged first tube seats (59) are arranged in the purifying box (56), filter papers (60) are arranged on the first tube seats (59), the side wall of the two jackets (9) is connected with a first cooling tube (61), the first cooling tube (61) is positioned in the first shell (55), the first cooling tube (61) communicates ethanol in the two jackets (9), the side wall of the first cooling tube (61) is connected with fins (62) which are arranged at equal intervals, an annular cooling gap (63) is formed between the light guide plate (33) and a rectangular frame (18), the outlet of the first shell (55) is connected with a third tube (64), the third tube (64) is connected with the rectangular frame (18) to the second shell (65) with the air inlets (65), be connected with fan seat (66) on second casing (65), install centrifugal fan (67) on fan seat (66), the extraction opening of centrifugal fan (67) links to each other with second casing (65), the exit linkage of second casing (65) has fourth body (68), fourth body (68) link to each other with rectangle frame seat (18) in order to take out the air in annular cooling gap (63), the lateral wall of third body (64) and fourth body (68) all is connected with first valve (69).
  5. 5. The industrial pressure reaction kettle according to claim 3, wherein the end face of the light guide plate (33) is provided with through grooves (70) which are arranged at equal intervals, a mixing component (71) is installed in each through groove (70), each mixing component (71) comprises a first panel (72) and a second panel (73), each first panel (72) is provided with a symmetrically arranged positioning column (74), each second panel (73) is provided with a positioning groove (75) which is matched with the positioning column (74), the opposite surfaces of each first panel (72) and each second panel (73) are provided with first flow channels (76) which are arranged from top to bottom, each first flow channel (76) is provided with a mixing flow channel (77) which is arranged at equal intervals, each mixing flow channel (77) is in a round corner rectangle shape, each mixing flow channel (77) is connected with a flow dividing baffle (78), materials in each mixing flow channel (77) are divided into two paths after being arranged oppositely, each first panel (72) and each second panel (73) is fixedly provided with a stop plate (80) through a positioning screw (79), and each second panel (80) on two sides enables each second panel (73) to be fixedly arranged on the light guide plate (33).
  6. 6. The industrial pressure reaction kettle according to claim 1, wherein the side wall of the jacket (9) is connected with a supporting seat (30) which is arranged at equal angles, the opposite supporting seat (30) is connected with a supporting beam (31), the industrial pressure reaction kettle further comprises a bearing plate (81) which is arranged on the supporting beam (31), a cylinder (82) is arranged on the top surface of the bearing plate (81), a first bearing seat (83) is arranged on the top surface of the bearing plate (81), a crankshaft (84) is rotatably connected on the first bearing seat (83), the crankshaft (84) is driven by a second motor (85), the crankshaft (84) is provided with three eccentric parts (86), the middle eccentric part (86) is in opposite eccentric directions with the eccentric parts (86) on two sides, the middle eccentric part (86) is rotatably connected with a first connecting rod (87), the free ends of the first connecting rod (88) are rotatably connected with a first piston (88), the eccentric parts (86) on two sides are rotatably connected with a second connecting rod (89), the free ends of the two second connecting rods (89) are rotatably connected with a first supporting rod (90), the first supporting rod (92) is rotatably connected with a second supporting rod (92), the second supporting rod (91) is hinged with the second supporting rod (91) on the second supporting rod (92), the second piston (92) is arranged opposite to the first piston (88), a guide seat (93) is connected to the bearing plate (81), the guide seat (93) is connected with the second supporting rod (91) in a sliding mode, a fifth pipe body (94) and a sixth pipe body (95) are connected to the middle of the cylinder barrel (82), an air inlet one-way valve (96) is connected to a port of the fifth pipe body (94), a seventh pipe body (97) is connected to a port of the air inlet one-way valve (96), an eighth pipe body (98) is connected to the free end of the seventh pipe body (97), an air outlet one-way valve (99) is connected to a port of the sixth pipe body (95), a ninth pipe body (100) is connected to a port of the air outlet one-way valve (99), and a tenth pipe body (101) is connected to the free end of the ninth pipe body (100) and the second kettle body (2).
  7. 7. The industrial pressure reaction kettle according to claim 5, characterized in that a sleeve (112) is connected to the middle split flow baffle (78), two symmetrically arranged nozzles (113) are connected to the side wall of the sleeve (112), a first vertical pipe (114) is rotationally connected to the sleeve (112), the first vertical pipe (114) is of a non-bottom through structure, a second sealing ring (115) is connected between the first vertical pipe (114) and the sleeve (112), two symmetrically arranged water outlet holes (116) are formed in the side wall of the first vertical pipe (114), cleaning operation can be performed when the water outlet holes (116) are opposite to the nozzles (113), the first vertical pipe (114) is rotationally connected with a light guide plate (33), a first sealing pipe (117) is connected to the top surface and the bottom surface of the light guide plate (33), the first sealing pipe (117) is sleeved on the first vertical pipe (114), the upper end of the first vertical pipe (114) extends to the outer side of the rectangular frame (18), and the first vertical pipe (114) is connected with a second driving mechanism (118) for driving the first vertical pipe (114) to rotate.
  8. 8. The industrial pressure reaction kettle according to claim 7, wherein the second driving mechanism (118) comprises a second base (119) arranged on the rectangular frame base (18), a first rotating pipe (120) is arranged in the second base (119), the first rotating pipe (120) is sleeved at the upper end of the first vertical pipe (114), a first worm wheel (121) is connected to the side wall of the first rotating pipe (120), a first worm (122) is meshed on the first worm wheel (121), the first worm (122) is driven by a third motor (123), the upper end of the first rotating pipe (120) is connected with a fixed seat (124), the side wall of the fixed seat (124) is rotationally connected with two first sealing bearings (125), a rotating seat (126) is connected to the first sealing bearings (125), a ring groove (127) is arranged on the side wall of the fixed seat (124), the ring groove (127) is arranged between the two first sealing bearings (125), a second runner (128) communicated with the first rotating pipe (120) is arranged on the side wall of the rotating seat (126), a first pipe (129) is communicated with the first runner (127), a first pipe (129) is connected with a liquid collecting pipe (131) through a first branch pipe (131), the first pump body (133) is connected with a water storage tank (135) through a fifth branch pipe (134), and the side wall of the fifth branch pipe (134) is connected with a second valve (136).
  9. 9. The industrial pressure reactor according to claim 7, wherein the light guide plate (33) is connected with a second vertical pipe (137), the lower end of the second vertical pipe (137) extends to the mixing runner (77), a second sealing pipe (138) is installed on the top surface of the light guide plate (33), the second sealing pipe (138) is sleeved on the side wall of the second vertical pipe (137), a third runner (139) which is symmetrically arranged is arranged on the opposite surfaces of the first surface plate (72) and the second surface plate (73), the third runner (139) is communicated with the second vertical pipe (137), a third machine seat (140) is connected to the rectangular frame seat (18), the second vertical pipe (137) extends into the third machine seat (140), a second sealing bearing (141) is installed in the third machine seat (140), the second sealing bearing (141) enables a sample temporary storage cavity (142) to be formed in the third machine seat (140), a second pipe seat (143) is connected to the third machine seat (140), a fourth machine seat (144) is connected to the second pipe seat (143), a fourth worm wheel (144) is connected to the fourth machine seat (144), a second rotary screw (145) is connected to the second rotary screw (145), and the second end (145) is meshed with the second side wall (145), the second worm (147) is driven through a fourth motor (148), the center of a second rotary tube (145) is connected with a first adjusting rod (149), the first adjusting rod (149) extends into a mixing runner (77), the lower end of the first adjusting rod (149) is connected with a spherical cap (150), the outer wall of the spherical cap (150) is matched with the mixing runner (77), symmetrically-arranged diversion holes (151) are formed in the side wall of the spherical cap (150), when the diversion holes (151) are opposite to a third runner (139), sampling can be conducted, the side wall of a third base (140) is connected with a second tube interface (152), the second tube interface (152) is connected with a second pump body (154) through a sixth branch tube (153), the second pump body (154) is connected with a sampling tank (156) through a seventh branch tube (155), and the side wall of the seventh branch tube (155) is connected with a third valve (157).
  10. 10. An industrial synthesis method of dichlorobutene using an industrial pressure reaction kettle according to any one of claims 1-9 is characterized by comprising the steps of (1) adding a cupric chloride chlorination catalyst into the pressure reaction kettle, adding acetonitrile as a reaction solvent, sealing the reaction kettle, immersing the reaction kettle in an ethanol bath at the temperature of-15 ℃ until the temperature of the system is reduced to-10 ℃, introducing 1, 3-butadiene gas into the reaction kettle to liquefy the 1, 3-butadiene, stirring to uniformly mix the system, wherein the cupric chloride chlorination catalyst is selected from cupric chloride dihydrate, cupric chloride hexahydrate or anhydrous cupric chloride, the molar ratio of the 1, 3-butadiene to the chlorination catalyst is 1-8:1, the solvent acetonitrile is 0.02-5 times of the mass of the 1, 3-butadiene, and (2) the chlorination step is to heat the reaction kettle which is liquefied to the room temperature of 15-45 ℃, placing the reaction kettle in a blue light LED light source with the wavelength of 465-47nm or an LED light source with the wavelength of 650-470 nm for carrying out the reaction under the illumination of light, and the step of purifying the dichlorobutene and the 1, 3-butadiene, wherein the 1-3-butene is distilled to obtain the 1-3-dichlorobutene, the 1-3-dichlorobutene after the step of purifying the 1-3-dichlorobutene and the 1-3-dichlorobutene.

Description

Industrial pressure reaction kettle and synthetic method of dichlorobutene Technical Field The invention relates to the technical field of reaction kettles, in particular to an industrial pressure reaction kettle and a method for synthesizing dichlorobutene. Background The chlorinated olefin, especially the dichlorobutene, has active chemical property and easily obtained raw materials due to the self structure and double bond of halogen groups and olefin, is an important organic intermediate in the fields of medical synthesis, high polymer material preparation and the like, wherein the synthetic rubber prepared by polymerizing 2-chloro-1, 3-butadiene serving as a core raw material has extremely wide application in the fields of weather-resistant products, coatings, shoe industry manufacture and aviation and aerospace fuel matching. The prior main flow preparation process of the dichlorobutene is divided into two types, namely gas-phase chlorination and liquid-phase chlorination, wherein the gas-phase chlorination process takes 1, 3-butadiene and chlorine as raw materials, and the gas-phase reaction is carried out at a high temperature of 220-300 ℃, so that the process has the problems of large chlorine consumption and low utilization rate, a large amount of byproducts are easily generated in the high-temperature reaction, the conversion rate of the 1, 3-butadiene is low, the high-temperature working condition brings extremely high energy consumption requirements, large equipment is matched for recycling excessive butadiene, the equipment investment and the operation cost are high, the liquid-phase chlorination process takes chlorinated solvent and alkane solvent as reaction media, and part of the process also needs to add metal chloride as a catalyst, so that the reaction temperature can be reduced, but the problem of large solvent consumption exists, the follow-up process needs to be matched with solvent distillation and purification procedures, the large equipment and high energy consumption support are also needed, and the product yield is low. In order to solve the technical defects, the normal-temperature photo-chlorination process becomes the optimal direction for preparing the dichlorobutene from the 1, 3-butadiene, the chlorination reaction can be completed under the normal-temperature condition, the energy consumption is greatly reduced, the byproduct generation is reduced, and the use of a large amount of organic solvents is avoided. Disclosure of Invention The invention aims to provide an industrial pressure reaction kettle and a synthesis method of dichlorobutene, which solve the problems of poor staged temperature control effect and insufficient installation tightness of an illumination component of the existing reaction kettle in the background technology. The industrial pressure reaction kettle comprises a first kettle body and a second kettle body, wherein the first kettle body and the second kettle body are identical in structure, the side faces of the first kettle body are round tubes, the center of the top face of the first kettle body is connected with a first rotating shaft in a sealing mode through a shaft, the first rotating shaft is connected with a first driving mechanism used for driving the first rotating shaft to rotate, stirring paddles are arranged on the side wall of the first rotating shaft in the kettle body, a feeding pipe and an air inlet pipe are arranged on the top face of the first kettle body, a discharging pipe is arranged on the bottom face of the first kettle body, a jacket is connected with the upper side wall of the jacket, the bottom of the jacket is connected with the second pipe body, rectangular openings are formed in the side faces of the first kettle body and the second kettle body, flange frames with L-shaped cross sections are connected to the rectangular openings, retaining strips are connected with one another in the inner horizontal section of the flange frames, a containing cavity is formed between the two retaining strips, a light guide component is arranged in the containing cavity, a blue LED or an LED is arranged on the side wall of the first rotating shaft, a material in the kettle body is illuminated by the rectangular frame, the material in the rectangular frame is connected with the rectangular frame through a sealing seat, and the two light guide components are fixedly arranged in the sealing mode through the sealing bolts. The first driving mechanism comprises a base connected with the first kettle body, the base is connected with a base through a flange, the base is tubular in shape, a first motor is connected to the upper port of the base through a flange, a shaft end of the first motor is connected with a shaft coupling, and the shaft coupling is connected with a first rotating shaft. The stirring blades are three groups, the number of each group of stirring blades is 4, the shape of the stirring blade at the uppermost layer is plate-shape