BE518416A - - Google Patents

Info

Publication number: BE518416A
Authority: BE; Belgium
Prior art keywords: lactam; polyamide; polyamides; water vapor; caprolactam
Prior art date

Application number

Other languages

English (en)

French (fr)

Publication of BE518416A publication Critical patent/BE518416A/fr

Links

239000004952 Polyamide Substances 0.000 claims description 23
229920002647 polyamide Polymers 0.000 claims description 23
150000003951 lactams Chemical class 0.000 claims description 19
JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims description 14
238000006243 chemical reaction Methods 0.000 claims description 9
239000002253 acid Substances 0.000 claims description 8
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
238000000034 method Methods 0.000 claims description 7
238000011084 recovery Methods 0.000 claims description 4
150000007524 organic acids Chemical class 0.000 claims description 2
239000003513 alkali Substances 0.000 claims 1
235000005985 organic acids Nutrition 0.000 claims 1
NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
DVPHDWQFZRBFND-DMHDVGBCSA-N 1-o-[2-[(3ar,5r,6s,6ar)-2,2-dimethyl-6-prop-2-enoyloxy-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-5-yl]-2-[4-[(2s,3r)-1-butan-2-ylsulfanyl-2-(2-chlorophenyl)-4-oxoazetidin-3-yl]oxy-4-oxobutanoyl]oxyethyl] 4-o-[(2s,3r)-1-butan-2-ylsulfanyl-2-(2-chloropheny Chemical group C1([C@H]2[C@H](C(N2SC(C)CC)=O)OC(=O)CCC(=O)OC(COC(=O)CCC(=O)O[C@@H]2[C@@H](N(C2=O)SC(C)CC)C=2C(=CC=CC=2)Cl)[C@@H]2[C@@H]([C@H]3OC(C)(C)O[C@H]3O2)OC(=O)C=C)=CC=CC=C1Cl DVPHDWQFZRBFND-DMHDVGBCSA-N 0.000 description 4
235000011007 phosphoric acid Nutrition 0.000 description 4
HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
150000007513 acids Chemical class 0.000 description 3
229910000147 aluminium phosphate Inorganic materials 0.000 description 3
239000012535 impurity Substances 0.000 description 3
239000007800 oxidant agent Substances 0.000 description 3
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
238000004821 distillation Methods 0.000 description 2
230000002349 favourable effect Effects 0.000 description 2
239000000203 mixture Substances 0.000 description 2
238000002360 preparation method Methods 0.000 description 2
239000000047 product Substances 0.000 description 2
238000007086 side reaction Methods 0.000 description 2
JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical class CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
LRQKBLKVPFOOQJ-UHFFFAOYSA-N 2-aminohexanoic acid Chemical compound CCCCC(N)C(O)=O LRQKBLKVPFOOQJ-UHFFFAOYSA-N 0.000 description 1
235000011037 adipic acid Nutrition 0.000 description 1
150000001279 adipic acids Chemical class 0.000 description 1
150000008044 alkali metal hydroxides Chemical class 0.000 description 1
239000002585 base Substances 0.000 description 1
SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical class OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
239000006227 byproduct Substances 0.000 description 1
238000010924 continuous production Methods 0.000 description 1
238000000354 decomposition reaction Methods 0.000 description 1
230000008030 elimination Effects 0.000 description 1
238000003379 elimination reaction Methods 0.000 description 1
238000001914 filtration Methods 0.000 description 1
-1 lactam lactam Chemical class 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
238000002844 melting Methods 0.000 description 1
230000008018 melting Effects 0.000 description 1
150000007522 mineralic acids Chemical class 0.000 description 1
150000004968 peroxymonosulfuric acids Chemical class 0.000 description 1
150000003016 phosphoric acids Chemical class 0.000 description 1
238000006068 polycondensation reaction Methods 0.000 description 1
229920000642 polymer Polymers 0.000 description 1
238000006116 polymerization reaction Methods 0.000 description 1
239000012286 potassium permanganate Substances 0.000 description 1
239000011541 reaction mixture Substances 0.000 description 1
239000007787 solid Substances 0.000 description 1
239000000126 substance Substances 0.000 description 1
239000011800 void material Substances 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/02—Preparation of lactams
- C07D201/12—Preparation of lactams by depolymerising polyamides

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Polyamides (AREA)

BE518416D BE518416A (de)

Publications (1)

Publication Number	Publication Date
BE518416A true BE518416A (de)

Family

ID=154984

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE518416D BE518416A (de)

Country Status (1)

Country	Link
BE (1)	BE518416A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0522235A1 (de) *	1991-06-21	1993-01-13	Basf Corporation	Verfahren zur Rückgewinnung von Epsilon-Caprolactam aus Nylon-6-haltigem Teppich
WO1994006763A1 (en) *	1992-09-11	1994-03-31	Basf Corporation	RECLAIMING ε-CAPROLACTAM FROM NYLON 6 CARPET
WO1994008942A1 (en) *	1992-10-19	1994-04-28	E.I. Du Pont De Nemours And Company	Depolymerization of nylon 6,6 (and optionally) nylon 6 to obtain hexamethylene diamine (and caprolactam)

0
- BE BE518416D patent/BE518416A/fr unknown

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0522235A1 (de) *	1991-06-21	1993-01-13	Basf Corporation	Verfahren zur Rückgewinnung von Epsilon-Caprolactam aus Nylon-6-haltigem Teppich
WO1994006763A1 (en) *	1992-09-11	1994-03-31	Basf Corporation	RECLAIMING ε-CAPROLACTAM FROM NYLON 6 CARPET
WO1994008942A1 (en) *	1992-10-19	1994-04-28	E.I. Du Pont De Nemours And Company	Depolymerization of nylon 6,6 (and optionally) nylon 6 to obtain hexamethylene diamine (and caprolactam)

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