Continuous production device for pigment yellow 139
By using a continuous production unit with stepwise feeding and aqueous solution reaction, the problems of low production efficiency and environmental protection of Pigment Yellow 139 have been solved, achieving efficient and safe continuous synthesis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANSHAN HUIYOU INTELLIGENT EQUIPMENT TECHNOLOGY CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-21
AI Technical Summary
The current production of Pigment Yellow 139 is mainly intermittent, which results in low production efficiency, high costs, large consumption of organic solvents, and large amounts of wastewater, posing safety and environmental threats.
The continuous production equipment, including phthalocyanine storage tank, barbituric acid storage tank, dynamic tubular reactor, sulfuric acid storage tank and pigment yellow 139 storage tank, is adopted to achieve continuous synthesis through stepwise feeding and aqueous solution reaction, which simplifies the production process, improves the accuracy of feeding and reaction stability, and reduces the amount of organic solvent used.
The continuous synthesis of Pigment Yellow 139 has been achieved, which has improved production efficiency and yield, reduced production costs, and ensured production safety and environmental friendliness.
Smart Images
Figure CN224142252U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of chemical production technology, and specifically relates to a continuous production device for pigment yellow 139. Background Technology
[0002] Pigment Yellow 139, as an isoindoline pigment, contains carbonyl, imino, cyano, and amide groups in its molecule, resulting in intramolecular and intermolecular hydrogen bonds and a more planar molecular structure. Therefore, Pigment Yellow 139 is an organic pigment with excellent heat and solvent resistance.
[0003] Currently, the main method for preparing Pigment Yellow 139 involves the reaction of phthalocyanine and barbiturate compounds in an alcoholic solution system under acidic conditions. Pigment Yellow 139 production is predominantly batch-based, resulting in low efficiency and high production costs, making it unsuitable for large-scale production. Furthermore, the current production of Pigment Yellow 139 generally utilizes organic solvent systems, leading to large quantities of stored methanol and other organic solvents, and significant wastewater discharge, posing certain threats to safety and environmental protection. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a continuous production device for Pigment Yellow 139, which solves the problems of insufficient production capacity, low production efficiency and complex process in the existing Pigment Yellow 139 production process.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A continuous production apparatus for Pigment Yellow 139 includes a phthalocyanine storage tank, a barbituric acid storage tank, a dynamic tubular reactor, a sulfuric acid storage tank, a Pigment Yellow 139 storage tank, and a hot water tank.
[0007] The phthalocyanine storage tank is connected to the phthalocyanine inlet located at the top of the dynamic tubular reactor via a feed pipe.
[0008] The barbituric acid storage tank is connected to the barbituric acid inlet located in the middle of the dynamic tubular reactor via feed pipe 2.
[0009] The sulfuric acid storage tank is connected to the sulfuric acid inlet located at the bottom of the dynamic tubular reactor via a feed pipe.
[0010] The discharge pipe of the dynamic tubular reactor is connected to the pigment yellow 139 storage tank; the dynamic tubular reactor is equipped with a jacket, which is connected to the hot water tank through a jacket inlet pipe and a jacket return pipe.
[0011] The feed pipe is equipped with a metering pump A, a flow control valve A, and a mass flow meter A.
[0012] The feed pipe 2 is equipped with a metering pump B, a flow control valve B, and a mass flow meter B.
[0013] The feed pipe is equipped with a metering pump C, a flow control valve C, and a mass flow meter C.
[0014] The dynamic tubular reactor is equipped with a thermometer, a pressure gauge, and a pH meter.
[0015] A hot water pump is installed on the jacketed water inlet pipe.
[0016] The discharge pipe is equipped with a solenoid valve.
[0017] The ratio of tube height to tube diameter in the dynamic tubular reactor is (5-20):1.
[0018] Compared with existing technologies, the beneficial effects of this utility model are:
[0019] 1. In this invention, barbituric acid, sulfuric acid, and phthalocyanine are fed into a dynamic tubular reactor through three separate channels, enabling stepwise feeding and mixing. This solves the problem of phthalocyanine easily deteriorating and precipitating when exposed to acid or water, and improves feeding accuracy, reaction stability, and production safety.
[0020] 2. This invention features continuous feeding and discharging, enabling continuous synthesis of Pigment Yellow 139 and simplifying the production process. Compared to traditional batch synthesis, continuous synthesis offers adjustable feeding and discharging rates, high heat and mass transfer efficiency, and easy control of reaction parameters. The production process is continuously controllable, allowing production to be started or stopped as needed. It improves the utilization rate of raw materials phthalocyanine and barbituric acid, reduces production costs, and achieves higher yields and production efficiency.
[0021] 3. This invention replaces the methanol solution environment commonly used in the original process with an aqueous solution reaction environment, which solves the problems of large amounts of organic solvents stored in the production process and large amounts of wastewater to be treated in the desolvation process, thus ensuring production safety and environmental friendliness. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of this utility model.
[0023] In the diagram: 1. Phthalocyanine storage tank; 2. Barbiturate acid storage tank; 3. Dynamic tubular reactor; 4. Sulfuric acid storage tank; 5. Pigment Yellow 139 storage tank; 6. Hot water tank; 7. Feed pipe 1; 8. Feed pipe 2; 9. Feed pipe 3; 10. Phthalocyanine inlet; 11. Barbiturate acid inlet; 12. Sulfuric acid inlet; 13. Discharge port; 14. Jacket; 15. Jacket water inlet pipe; 16. Jacket water return pipe; 17. Thermometer; 18. Pressure gauge; 19. pH meter; 20. Hot water pump; 21. Solenoid valve.
[0024] Metering pump A71, flow control valve A72, mass flow meter A73;
[0025] Metering pump B81, flow control valve B82, mass flow meter B83;
[0026] Metering pump C91, flow control valve C92, mass flow meter C93. Detailed Implementation
[0027] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0028] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] like Figure 1 A continuous production apparatus for Pigment Yellow 139 includes a phthalocyanine storage tank 1, a barbituric acid storage tank 2, a dynamic tubular reactor 3, a sulfuric acid storage tank 4, a Pigment Yellow 139 storage tank 5, and a hot water tank 6.
[0030] The phthalocyanine storage tank 1 is connected to the phthalocyanine inlet 10 located at the top of the dynamic tubular reactor 3 via a feed pipe 7.
[0031] The barbituric acid storage tank 2 is connected to the barbituric acid inlet 11 located in the middle of the dynamic tubular reactor 3 via a feed pipe 2 8.
[0032] The sulfuric acid storage tank 3 is connected to the sulfuric acid inlet 12 located at the bottom of the dynamic tubular reactor 3 via a feed pipe 39.
[0033] The discharge pipe 13 of the dynamic tubular reactor 3 is connected to the pigment yellow 139 storage tank 5; the dynamic tubular reactor 3 is provided with a jacket 14, which is connected to the hot water tank 6 through the jacket inlet pipe 15 and the jacket return pipe 16 respectively.
[0034] The feed pipe 7 is equipped with a metering pump A 71, a flow control valve A 72, and a mass flow meter A 73.
[0035] The feed pipe 8 is equipped with a metering pump B 81, a flow control valve B 82, and a mass flow meter B 83.
[0036] The feed pipe 39 is equipped with a metering pump C91, a flow control valve C92, and a mass flow meter C93.
[0037] The dynamic tubular reactor 3 is equipped with a thermometer 17, a pressure gauge 18, and a pH meter 19.
[0038] A hot water pump 20 is installed on the jacketed water inlet pipe 15.
[0039] The discharge pipe is equipped with a solenoid valve 21.
[0040] The ratio of tube height to tube diameter in the dynamic tubular reactor is (5-20):1.
[0041] The working process of the above device:
[0042] Phthalocyanine with a mass fraction of 15%-40% from the phthalocyanine storage tank enters the dynamic tubular reactor via mass flow meter A at a flow rate of 60-120 ml / min using metering pump A. Barbiturate from the barbituric acid storage tank enters the dynamic tubular reactor via mass flow meter B at a flow rate of 30-60 ml / min using metering pump B to fully contact and mix with the phthalocyanine. Sulfuric acid from the sulfuric acid storage tank enters the dynamic tubular reactor via mass flow meter C at a flow rate of 31.5-63 ml / min using metering pump C. The pH is adjusted to 1-4. The heat required for the reaction is obtained through a hot water tank, and the temperature is controlled at 30-100℃. The temperature and pressure of the dynamic tubular reactor are measured using thermometers and pressure gauges, respectively. The pigment yellow 139 product generated from the reaction enters the pigment yellow 139 storage tank through the discharge pipe.
[0043] To make the objectives, technical solutions, and technical effects of this utility model clearer, the technical solutions in the embodiments of this utility model are now described clearly and completely. However, the embodiments described below are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art in conjunction with the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0044] Example 1:
[0045] A continuous production apparatus for Pigment Yellow 139 includes a phthalocyanine storage tank 1, a barbituric acid storage tank 2, a dynamic tubular reactor 3, a sulfuric acid storage tank 4, a Pigment Yellow 139 storage tank 5, and a hot water tank 6; the ratio of the tube height to the tube diameter of the dynamic tubular reactor is 15:1.
[0046] The phthalocyanine storage tank 1 is connected to the phthalocyanine inlet 10 located at the top of the dynamic tubular reactor 3 via the feed pipe 7; the feed pipe 7 is equipped with a metering pump A 71, a flow control valve A 72 and a mass flow meter A 73.
[0047] The barbituric acid storage tank 2 is connected to the barbituric acid inlet 11 located in the middle of the dynamic tubular reactor 3 via the feed pipe 2 8; the feed pipe 2 8 is equipped with a metering pump B 81, a flow control valve B 82 and a mass flow meter B 83.
[0048] The sulfuric acid storage tank 3 is connected to the sulfuric acid inlet 12 located at the bottom of the dynamic tubular reactor 3 via the feed pipe 3 9; the feed pipe 3 9 is equipped with a metering pump C91, a flow control valve C92 and a mass flow meter C93.
[0049] The dynamic tubular reactor 3 is equipped with a thermometer 17, a pressure gauge 18, and a pH meter 19. The discharge pipe 13 of the dynamic tubular reactor 3 is connected to the pigment yellow 139 storage tank 5; a solenoid valve 21 is installed on the discharge pipe. The dynamic tubular reactor 3 is equipped with a jacket 14, which is connected to the hot water tank 6 via a jacket inlet pipe 15 and a jacket return pipe 16. A hot water pump 20 is installed on the jacket inlet pipe 15.
[0050] Example 2:
[0051] A continuous production apparatus for Pigment Yellow 139 includes a phthalocyanine storage tank 1, a barbituric acid storage tank 2, a dynamic tubular reactor 3, a sulfuric acid storage tank 4, a Pigment Yellow 139 storage tank 5, and a hot water tank 6; the ratio of the tube height to the tube diameter of the dynamic tubular reactor is 10:1.
[0052] The phthalocyanine storage tank 1 is connected to the phthalocyanine inlet 10 located at the top of the dynamic tubular reactor 3 via the feed pipe 7; the feed pipe 7 is equipped with a metering pump A 71, a flow control valve A 72 and a mass flow meter A 73.
[0053] The barbituric acid storage tank 2 is connected to the barbituric acid inlet 11 located in the middle of the dynamic tubular reactor 3 via the feed pipe 2 8; the feed pipe 2 8 is equipped with a metering pump B 81, a flow control valve B 82 and a mass flow meter B 83.
[0054] The sulfuric acid storage tank 3 is connected to the sulfuric acid inlet 12 located at the bottom of the dynamic tubular reactor 3 via the feed pipe 3 9; the feed pipe 3 9 is equipped with a metering pump C91, a flow control valve C92 and a mass flow meter C93.
[0055] The dynamic tubular reactor 3 is equipped with a thermometer 17, a pressure gauge 18, and a pH meter 19. The discharge pipe 13 of the dynamic tubular reactor 3 is connected to the pigment yellow 139 storage tank 5; a solenoid valve 21 is installed on the discharge pipe. The dynamic tubular reactor 3 is equipped with a jacket 14, which is connected to the hot water tank 6 via a jacket inlet pipe 15 and a jacket return pipe 16. A hot water pump 20 is installed on the jacket inlet pipe 15.
[0056] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and basic spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A continuous production apparatus of Pigment Yellow 139, characterized by, This includes phthalocyanine storage tanks, barbituric acid storage tanks, dynamic tubular reactors, sulfuric acid storage tanks, pigment yellow 139 storage tanks, and hot water tanks; The phthalocyanine storage tank is connected to the phthalocyanine inlet located at the top of the dynamic tubular reactor via a feed pipe. The barbituric acid storage tank is connected to the barbituric acid inlet located in the middle of the dynamic tubular reactor via feed pipe 2. The sulfuric acid storage tank is connected to the sulfuric acid inlet located at the bottom of the dynamic tubular reactor via a feed pipe. The discharge pipe of the dynamic tubular reactor is connected to the pigment yellow 139 storage tank; the dynamic tubular reactor is equipped with a jacket, which is connected to the hot water tank through a jacket inlet pipe and a jacket return pipe.
2. The continuous production apparatus for Pigment Yellow 139 according to claim 1, wherein The feed pipe is equipped with a metering pump A, a flow control valve A, and a mass flow meter A.
3. The continuous production apparatus of Pigment Yellow 139 according to claim 1, wherein The feed pipe 2 is equipped with a metering pump B, a flow control valve B, and a mass flow meter B.
4. The continuous production apparatus for Pigment Yellow 139 according to claim 1, wherein The feed pipe is equipped with a metering pump C, a flow control valve C, and a mass flow meter C.
5. The continuous production apparatus of Pigment Yellow 139 according to claim 1, wherein The dynamic tubular reactor is equipped with a thermometer, a pressure gauge, and a pH meter.
6. The continuous production apparatus of Pigment Yellow 139 according to claim 1, wherein A hot water pump is installed on the jacketed water inlet pipe.
7. The continuous production apparatus of Pigment Yellow 139 according to claim 1, wherein The discharge pipe is equipped with a solenoid valve.
8. The continuous production apparatus of Pigment Yellow 139 according to claim 1, wherein The ratio of tube height to tube diameter in the dynamic tubular reactor is (5-20):1.