Method for reducing residual styrene-acrylonitrile copolymer resin and application
A technology of acrylonitrile and styrene, which is applied in recycling technology, plastic recycling, etc., can solve the problem of not being able to achieve both resin hue and low residue in finished products, and achieve the effect of being suitable for large-scale industrial production, simple process, and low residue
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0048] Ten hydrogenated -2-phenolol is used as raw materials for preparing a hydrogenation -2-sulfolol. Use MCM-41 molecular sieve as a catalyst, fill in In a fixed bed reactor (the reactor is connected to H 2S high-pressure steel cylinders, plunger pumps, and gas chemicals are used for raw material ten hydrogenated -2-phenol phenol), and the fixed bed reactor sets the temperature of 290 ° C, and the hydrogenation -2-phenol is transported to the vaporizer via the plunger pump. In gasification at 260 ° C, and H 2 S is mixed with a mass ratio of 1: 0.35 and enters the fixed bed reactor. The control reaction process is 1-1.5MPAG 65h -1 After the product was cooled by condenser, the septum was cooled, and no gas was absorbed by 20 % NAOH solution; the reaction liquid obtained by the liquid was further decompressed (intermittent operation, maintained the tower's top back / mining ratio 4: 1, and collected 8KPaa. Below 191-192 ° C distillation score) Refined purity of 10 % hydrogenation ...
Embodiment 2
[0056] Use 4-ring-己 采 作为 作为 as a raw material for preparing 4-rings of the hersenyl ringliol, and the MCM-41 molecular sieve is used as a catalyst, which is filled in In a fixed bed reactor (the reactor is connected to H 2 S high-pressure steel cylinders, plunger pumps, and gas chemicals are used for raw materials 4-rings of self-loop self-feed), fixed bed reactor sets temperature of 286 ° C, and 4-rings of self-loop nichels are transported to the vaporizer via the plunger pump. In gasification at 260 ° C, and H 2 S is mixed with a mass ratio of 1: 0.5 and enters the fixed bed reactor. The control reaction process is 1-1.5MPAG 88h -1 After the product was cooled by condenser, the septum was cooled, and no gas was absorbed by 20 % NAOH solution; the reaction liquid obtained by the liquid was further decompressed and refined. 8KPAA 233-235 ° C distillation score) obtained the purity of 4-rings of the cycle of niculinol with a purity of 98.7 %.
[0057] Add 75kg of stylene, 25kg acr...
Embodiment 3
[0064] Use 2-two-ring [2.2.1] Gengol as a raw material for 2-two-ring [2.2.1] Gengulanol, and use MCM-41 molecular sieve as a catalyst, fill in it in In a fixed bed reactor (the reactor is connected to H 2 S high-pressure steel cylinders, plunger pumps, and gas chemicals are used for raw materials 2-two-ring [2.2.1] Gengol inlet), fixed bed reactor setting temperature of 290 ° C, ten hydrogenation -2-phenol pump through the plunger pump transportation To the vaporization device, airize at 260 ° C, and H 2 S is mixed with a mass ratio of 1: 0.45 and then enters the fixed bed reactor. The control reaction process is 1.2-1.5MPAG 77h -1 After the product was cooled by condenser, the septum was cooled, and no gas was absorbed by 20 % NAOH solution; the reaction liquid obtained by the liquid was further decompressed and refined. 20KPAA 103-104 ℃ distillation points) Gengliulanol with a 2-two-ring [2.2.1] with a purity of 98.9 %.
[0065] Add 60kg of stylene, 40kg acrylic, 16kg ethylben...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More