# US 2022/0401902 A1 · Polymerization installation with integrated combined absorption-diffusion and absorption-condensation unit and its application for polymer and copolymer preparation

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2022/0401902 A1
- Document ID: US20220401902A1
- Status: Published application
- Kind: A1
- Application number: 17/774,240
- Filed: 2020-11-02
- Published: 2022-12-22
- Earliest claimed: 2019-11-05
- Assignees: Chemical Innovation Ltd.
- Applicants: Chemical Innovation Ltd.
- Inventors: Kamen Yordanov ARSOV
- Web page: https://patentgrep.com/patent/US20220401902A1

## CPC

- B01J 3/04: Pressure vessels, e.g. autoclaves
- B01D 53/18: Absorbing units; Liquid distributors therefor (B01D3/16, B01D3/26, B01D3/30 take precedence; packing elements B01J19/30, B01J19/32)
- B01J 4/007: {provided with moving parts}
- B01J 19/0066: {Stirrers (mixing per se B01F)}
- B01J 19/18: Stationary reactors having moving elements inside (B01J19/08, B01J19/26 take precedence)
- C08F 2/01: characterised by special features of the polymerisation apparatus used
- B01J 2219/00108: involving reactant vapours
- B01J 2219/0013: by condensation of reactants
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

## Abstract

A polymerization installation with integrated combined absorption-diffusion and absorption-condensation unit, as well as to its use for the preparation of various polymers and copolymers by addition, emulsion, suspension or radical polymerization, which will find application in chemical industry. There are four structural units in the installation, as follows: supply unit (A), reaction unit (B), combined absorption-diffusion and absorption-condensation unit (C) and finished product discharge unit (D).

## Claims

### Claim at position 1

1-10. (canceled)

### Claim 11

Polymerization installation with an integrated, combined absorption-diffusion and absorption-condensation unit comprising an autoclave-type polymerization reactor installed inside the reactor body, a mixer and a cover fixed above the reactor body, wherein a feeding block (A), a reaction block (B), a combined absorption and condensation unit (C), as well as a discharge unit for removal of the finished product are structurally formed in the installation, where:
a) the supply unit (A) comprises thermo worm conveyor equipped with a tubular metal housing with an axis located therein, driven by an electric motor and reduction gear, on which a spiral is installed, and the middle part of the metal body of the thermo worm conveyor is equipped with electric heaters and temperature sensors to achieve melting of the main output polymer, the free outlet of the thermo worm conveyor being located above an intermediate vessel for pouring the melt from the thermo worm conveyor, the intermediate vessel being equipped with cover, in which degasser and explosion-proof valve are installed, while in the middle of the intermediate vessel there are valves installed for supplying other reagents, and the lower part of the intermediate vessel is fixed to a screw feeder with a one-step monolithic transport coil built therein;
b) the reaction unit (B) also includes a heating coil built into the reactor body and an outlet pipe fixed in its upper part, intended for fixed attachment of diffuser, and in the cover that is fixed on top of the reactor body there are inlet openings located laterally and opposite to each other, to which a pipeline for feeding the reaction mixture from the screw feeder and an inlet pipe with a fixed non-return valve are fixedly attached to introduce condensate from the outlet of the double hull heat exchanger back into the internal part of the reactor body, while in the upper part of the cover there is pipe installed for fixing an electric motor and reduction gear that actuate the mixer located at the bottom of the reactor body and is connected to the reduction gear by a metal rod;
c) the combined absorption-diffusion and absorption-condensation unit (C) includes an outlet pipe fixed to the upper part of the reactor body with a diffuser attached therein, with a built-in non-return valve fixed to one end of the pipeline, the other end of which is fixed to a rectification dish installed and extending into the inner part of the outer housing of the double hull heat exchanger, the outer housing also comprising a hollow conical tubular body connected to the upper part of the rectification dish built into the outer housing, and at the outlet of the double hull heat exchanger one end of the pipeline is fixedly attached to an inlet pipe with a non-return valve installed therein, which is fixed to the lateral inlet in the cover;
d) the unit for discharge of the finished product (D) includes an outlet pipeline fixed at one end to the bottom of the reactor body, and at the other end to an outlet worm conveyor ending with an outlet worm head.

### Claim 12 (depends on 11)

Polymerization installation with integrated combined absorption-diffusion and absorption-condensation unit according to claim 11, wherein the fixed connections therein are preferably realized as flange connections.

### Claim 13 (depends on 11)

Combined absorption-diffusion and absorption-condensation unit integrated in a polymerization installation such as that claimed in claim 11, comprising a heat exchanger and a Venturi pipe as a structural element, and an outlet pipe fixed to the upper part of reactor body in which a diffuser is fixedly attached, with a built-in non-return valve, fixed to one end of the pipeline having initially a horizontal arrangement that vary at a length commensurate with the length of the double hull heat exchanger vertically, and the pipeline at its other end is fixed to the rectification dish fixedly attached to and built into the outer housing of the double hull heat exchanger, whereby in the outer housing of the double hull heat exchanger there is also a hollow conical tubular body connected to the upper part of the rectification dish and at the outlet of the double hull heat exchanger one end of the pipeline is fixedly attached to an inlet pipe with a non-return valve installed therein, which is fixed to the lateral inlet in the cover fix on top of the reactor body.

### Claim 14 (depends on 11)

Use of the polymerization installation according to claim 11 for preparation of poly (ethylene-vinyl acetate) copolymers from a primary or secondary starting polymer by addition polymerization.

### Claim 15 (depends on 11)

Use of the polymerization installation according to claim 11 for preparation of butadiene styrene from a primary or secondary starting polymer by addition, emulsion or radical polymerization.

### Claim 16 (depends on 11)

Use of the polymerization installation according to claim 11 for preparation of latex products from a primary or secondary starting polymer by addition, emulsion or radical polymerization.

### Claim 17 (depends on 11)

Use of the polymerization installation according to claim 11 for preparation of methyl methacrylate and its copolymers from a primary or secondary starting polymer by emulsion or suspension polymerization.

### Claim 18 (depends on 11)

Use of the polymerization installation according to claim 11 for preparation of styrene acrylonitrile copolymers from a primary or secondary starting polymer by emulsion or suspension polymerization.

### Claim 19 (depends on 11)

Use of the polymerization installation according to claim 11 for preparation of styrene carboxylate copolymers for concrete modifications by emulsion or suspension polymerization.

### Claim 20 (depends on 11)

Use of the polymerization installation according to claim 11 for preparation of low density polyethylene (HDPE) or high density polyethylene (LDPE) from a primary or secondary starting polymer by radical polymerization.