阅读说明：本技术 用于至少两种目标产物的联合制备的方法 (Method for the combined production of at least two target products ) 是由 T·海茨 J·D·布兰德 J·埃尔伯斯 于 2020-03-05 设计创作，主要内容包括：本发明涉及联合制备选自(T1)、(T2)和(T3)的至少两种目标产物的方法,其中(T1)为对苯二甲酸酯聚酯,(T2)为基于对苯二甲酸、至少一种脂族1,ω-二羧酸和至少一种脂族1,ω-二醇的共聚酯,并且(T3)为基于对苯二甲酸、聚四氢呋喃和至少一种脂族1,ω-二醇的共聚酯。(The present invention relates to a process for the joint preparation of at least two target products selected from the group consisting of (T1), (T2) and (T3), wherein (T1) is a terephthalate polyester, (T2) is a copolyester based on terephthalic acid, at least one aliphatic 1, ω -dicarboxylic acid and at least one aliphatic 1, ω -diol, and (T3) is a copolyester based on terephthalic acid, polytetrahydrofuran and at least one aliphatic 1, ω -diol.)

1. A process for the joint preparation of at least two target products selected from (T1), (T2) and (T3), wherein

(T1) is a terephthalate polyester,

(T2) is a copolyester based on terephthalic acid, at least one aliphatic 1, omega-dicarboxylic acid and at least one aliphatic 1, omega-diol, and

(T3) is a copolyester based on terephthalic acid, polytetrahydrofuran and at least one aliphatic 1, omega-diol,

in an apparatus, the apparatus comprises

A first vessel (B1), a second vessel (B2), a third vessel (B3) and a main reactor (HR), wherein

The main reactor (HR) comprises a first main reactor unit (R1), a third main reactor unit (R3) and optionally a second main reactor unit (R2), and wherein

A conduit (1) connects the first vessel (B1) to the main reactor unit (R1), (R3) and optionally (R2), wherein

The pipeline (1) is divided into pipelines (1a), (1c) and optionally (1b), wherein

The conduit (1a) is connected to the inlet of the first main reactor unit (R1), the conduit (1c) is connected to the inlet of the third main reactor unit (R3), optionally the conduit (1b) is connected to the inlet of the second main reactor unit (R2), wherein

The conduit (6a) is connected to the outlet of the first main reactor unit (R1), the conduit (6c) is connected to the outlet of the third main reactor unit (R3), optionally the conduit (6b) is connected to the outlet of the second main reactor unit (R2), wherein

The second vessel (B2) may be connected to the inlet of the first main reactor unit (R1) via a conduit (2), wherein conduit (2) is connected to conduit (1a), and

the third container (B3) may be connected to the first container (B1) through a pipe (3a) and a pipe (3c),

the method comprises the following steps

a) Providing at least one first oligomer composition (OC1) comprising at least one first oligomer (O1) obtained by condensation reaction of terephthalic acid and at least one aliphatic 1, omega-diol in a first vessel (B1),

b) providing at least one second oligomer composition (OC2) comprising at least one second oligomer (O2) obtained by condensation reaction of at least one aliphatic 1, omega-dicarboxylic acid and at least one aliphatic 1, omega diol in a second vessel (B2),

c) providing at least one third oligomer composition (OC3) comprising at least one third oligomer (O3) obtained by polymerizing tetrahydrofuran in a third vessel (B3),

d) at least two operation modes (PT1), (PT2), and (PT3) selected from the following are alternately performed:

(PT1) preparation of target product (T1):

a) at least one first oligomer composition (OC1) is supplied to the main reactor unit (R1), (R3) and optionally (R2) via lines (1), (1a), (1c) and optionally (1b),

b) polycondensing at least one first oligomer composition (OC1) in a main reactor unit (R1), (R3) and optionally (R2), wherein the target product (T1) is obtained,

c) the target product (T1) is removed from the main reactor unit (R1), (R3) and optionally (R2) via lines (6a), (6c) and optionally (6b),

(PT2) the target products (T1) and (T2) were prepared simultaneously:

a) supplying at least one first oligomer composition (OC1) to the main reactor unit (R1), (R3) and optionally (R2) via lines (1), (1a), (1c) and optionally (1b), and b) supplying at least one second oligomer composition (OC2) to the first main reactor unit (R1) via lines (2) and (1a),

c) polycondensing in a main reactor unit (R1) at least one first oligomer composition (OC1) and at least one second oligomer composition (OC2), wherein the target product (T2) is obtained, and polycondensing in a main reactor unit (R3) and optionally (R2) at least one first oligomer composition (OC1), wherein the target product (T1) is obtained,

d) removing the target product (T2) from the main reactor unit (R1) via line (6a) and removing the target product (T1) from the main reactor unit (R3) and optionally (R2) via line (6c) and optionally (6b),

(PT3) preparation of target product (T3):

a) supplying at least one third oligomer composition (OC3) to the first vessel (B1) via lines (3a) and (3c),

b) mixing at least one third oligomer composition (OC3) and at least one first oligomer composition (OC1) in a first vessel (B1), wherein a product (P1) is obtained, said product (P1) comprising, in already reacted form, at least one third oligomer composition (OC3) and at least one first oligomer composition (OC1),

c) the product (P1) is supplied to the main reactor unit (R1), (R3) and optionally (R2) via lines (1), (1a), (1c) and optionally (1b),

d) polycondensing the product (P1) in a main reactor unit (R1), (R3) and optionally (R2), wherein

The target product (T3) is obtained,

e) the target product (T3) is removed from the main reactor unit (R1), (R3) and optionally (R2) via lines (6a), (6c) and optionally (6 b).

2. Process according to claim 1, wherein the third vessel (B3) is connected to the inlet of the third main reactor unit (R3) through a conduit (3B) and a conduit (3c), wherein conduit (3B) is connected to conduit (1c), wherein further operating mode (PT4) is performed:

(PT4) preparation of target products (T1) and (T3):

a) supplying at least one first oligomer composition (OC1) to the main reactor unit (R1), (R3) and optionally (R2) through lines (1), (1a), (1c) and optionally (1b), and

b) at least one third oligomer composition (OC3) is supplied to the third main reactor unit (R3) via lines (3b), (3c) and (1c),

c) polycondensing at least one first oligomer composition (OC1) in a main reactor unit (R1) and optionally (R2), wherein the target product (T1) is obtained, and polycondensing at least one first oligomer composition (OC1) and at least one third oligomer composition (OC3) in a main reactor unit (R3), wherein the target product (T3) is obtained,

d) the target product (T1) is removed from the main reactor unit (R1) and optionally (R2) through line (6a) and optionally (6b), and the target product (T3) is removed from the main reactor unit (R3) through line (6 c).

3. The process according to claim 1 or 2, wherein the apparatus further comprises a fourth vessel (B4), wherein the fourth vessel (B4) is connected to the inlet of the first main reactor unit (R1) through a conduit (4), wherein conduit (4) is connected to conduit (1a), and wherein the process further comprises the step of providing at least one fourth oligomer composition (OC4) comprising at least one fourth oligomer (O4) obtained by melting at least one polyesterol, and wherein operating mode (PT6) is also carried out:

(PT6) to prepare simultaneously the desired products (T1) and (T4), wherein (T4) is a copolyester based on terephthalic acid, at least one 1, ω -diol and optionally at least one further component selected from the group consisting of polyols, aliphatic 1, ω -dicarboxylic acids, 1, ω -glycols and aromatic 1, ω -dicarboxylic acids:

a) at least one first oligomer composition (OC1) is supplied to the main reactor unit (R1), (R3) and optionally (R2) via lines (1), (1a), (1c) and optionally (1b),

b) at least one fourth oligomer composition (OC4) is supplied to the first main reactor unit (R1) via lines (4) and (1a),

c) polycondensing in a main reactor unit (R1) at least one first oligomer composition (OC1) and at least one fourth oligomer composition (OC4), wherein the target product (T4) is obtained, and polycondensing in a main reactor unit (R3) and optionally (R2) at least one first oligomer composition (OC1), wherein the target product (T1) is obtained,

d) the target product (T4) is removed from the main reactor unit (R1) through conduit (6a), and the target product (T1) is removed from the main reactor unit (R3) and optionally (R2) through conduit (6c) and optionally (6 b).

4. Process according to any one of claims 1 to 3, wherein the apparatus further comprises a fifth vessel (B5), wherein the fifth vessel (B5) is connected to the inlet of the third main reactor unit (R3) through a conduit (5), wherein the conduit (5) is connected to conduit (3B) and conduit (3B) is connected to conduit (1c), and wherein the process further comprises the step of providing at least one fifth oligomer composition (OC5) comprising at least one fifth oligomer (O5) in the fifth vessel (B5), wherein the fifth oligomer (O5) is obtained by alkoxylation of at least one low molecular weight compound having from 2 to 6 hydroxyl functions with at least one alkylene oxide different from tetrahydrofuran, and wherein the operational mode (PT8) is further conducted:

(PT8) to prepare simultaneously the desired products (T1) and (T5), where (T5) is a copolyester based on terephthalic acid, at least one polyalkylene glycol different from polytetrahydrofuran and at least one aliphatic 1, ω -diol:

a) supplying at least one first oligomer composition (OC1) to the main reactor unit (R1), (R3) and optionally (R2) through lines (1), (1a), (1c) and optionally (1b), and

b) at least one fifth oligomer composition (OC5) is supplied to the third main reactor unit (R3) via lines (5), (3b) and (1c),

c) polycondensing in a main reactor unit (R3) at least one first oligomer composition (OC1) and at least one fifth oligomer composition (OC5), wherein the target product (T5) is obtained, and polycondensing in a main reactor unit (R1) and optionally (R2) at least one first oligomer composition (OC1), wherein the target product (T1) is obtained,

d) the target product (T5) is removed from the main reactor unit (R3) through conduit (6c) and the target product (T1) is removed from the main reactor unit (R1) and optionally (R2) through conduit (6a) and optionally (6 b).

5. The process according to any one of claims 1 to 4, wherein the at least one aliphatic 1, ω -dicarboxylic acid is selected from succinic acid, adipic acid and sebacic acid.

6. The process according to any one of claims 1 to 5, wherein the at least one aliphatic 1, ω -diol is selected from 1, 2-ethanediol, 1, 3-propanediol, 1, 4-butanediol and diethylene glycol.

7. The process according to claim 4, wherein the at least one alkylene oxide different from tetrahydrofuran is selected from the group consisting of ethylene oxide, propylene oxide, butylene oxide, styrene oxide and mixtures thereof.

8. The process according to any one of claims 1 to 7, wherein the at least one first oligomer composition (OC1) has an OH number of from 30 to 80mg KOH/g.

9. The process according to any one of claims 1 to 8, wherein the at least one second oligomer composition (OC2) has an OH number of from 30 to 80mg KOH/g.

10. The process according to any one of claims 1 to 9, wherein the weight average molecular weight (M) of the at least one third oligomer (O3)_W) Is 600 to 2400 g/mol.

11. The process according to claim 3, wherein the at least one polyesterol is a polycondensation product of

i) At least one aromatic and/or aliphatic 1, omega-dicarboxylic acid, and

ii) at least one 1, omega-glycol and/or at least one polyol.

12. The process according to any one of claims 1 to 11, wherein the primary reactor (HR) is selected from reactors with a horizontal flow direction or from reactors with a vertical flow direction.

13. The process according to any one of claims 1 to 12, wherein the target product (T2) is a polycondensation product of

i)30 to 60 mol%, based on components i) to ii), of terephthalic acid,

ii) from 40 to 70 mol%, based on components i) to ii), of at least one aliphatic 1, ω -dicarboxylic acid, and

iii) from 100 to 104 mol%, based on components i) to ii), of at least one aliphatic 1, omega-diol.

14. The process according to any one of claims 1 to 13, wherein the target product (T3) is a polycondensation product of

i)100 mol%, based on component i), of terephthalic acid,

ii) from 30 to 74 mol%, based on component i), of at least one tetrahydrofuran, and

iii) from 30 to 74 mol%, based on component i), of at least one aliphatic 1, omega-diol,

wherein the sum of components ii) and iii) is from 100 to 104 mol%.

15. The process according to claim 3, wherein the desired product (T4) is a polycondensation product of

i)10 to 100 mol%, based on components i) to ii), of terephthalic acid,

ii) from 0 to 90 mol% of at least one aliphatic and/or at least one aromatic 1, omega-dicarboxylic acid, wherein the at least one aromatic 1, omega-dicarboxylic acid is different from terephthalic acid, based on components i) to ii),

iii) from 30 to 102 mol%, based on components i) to ii), of at least one 1, omega-diol, and

iv)0 to 72 mol% of at least one 1, omega-glycol and/or at least one polyol, wherein the at least one 1, omega-glycol is different from the at least one 1, omega-diol, based on components i) to ii),

wherein the sum of components iii) and iv) is from 100 to 102 mol%.

16. The process according to any one of claims 1 to 15, wherein the target product (T1) is a polycondensation product of

i)100 mol%, based on component i), of terephthalic acid, and

ii)100-104 mol%, based on component i), of at least one aliphatic 1, ω -diol.

17. The process according to claim 4, wherein the desired product (T5) is a polycondensation product of

i)100 mol%, based on component i), of terephthalic acid,

ii) from 30 to 72 mol%, based on component i), of at least one polyalkylene glycol different from polytetrahydrofuran, and

iii) from 30 to 72 mol%, based on component i), of at least one aliphatic 1, omega-diol,

wherein the sum of components ii) and iii) is from 100 to 102 mol%.