Rɔba a ɛma nneɛma yɛ ntɛmntɛm MBT(M) .

DESC .Nneɛma a ɛwɔ hɔ: .

MBT(m) .

Nneɛma a ɛma nneɛma yɛ adwuma ntɛmntɛm no din .	2-mercaptobenzothiazole .
Molekyule a wɔde yɛ aduan .	C7H5NS .2
Molekyule Nhyehyɛe .
Molekyule mu duru .	167.26
Tumi a ɛtwe ade ba fam .	1.42
Cas no.	149-30-4
Boadeɛ	25kg/bag .
Nneɛma a wɔkora so asetra .	Asram 24 .

Nkyerɛkyerɛmu: .

Sɛnea raw material kwan no kyerɛ no, ɛwɔ hɔ titiriw:

1) aniline kwan;

2) O-NIROPHENYL Chloride kwan;

3) N{1}}methylaniline kwan;

4) N,N{1}}Dimethylformamide kwan;

5) dimethylamine kwan;

6) haloaniline kwan;

7) benzothiazole kwan;

8) O-Chlorothiophenol kwan;

9) Nitrobenzene kwan ne nea ɛtete saa.

rɔba vulcanization accelerator M no mu synthesis kwan pɔtee no yɛ: sulfur a ayow, aniline, cs2, benzothiazole a wɔde ka nhyɛso kɛse adeyɛ kettle no ho bere a wɔkanyan no, ɔhyew a ɛyɛ adwuma no yɛ 250℃C, nhyɛso no yɛ 5.87 MPa, bere a adeyɛ no awie no, nhyɛso no fi adi, na mframa a wɔde ma no mu no yɛ nea ɛma nsu no yɛ adwuma yiye ne nea ɛma nsu no yɛ adwuma no fã a ɛma nsu no yɛ adwuma yiye. ɔfa. M a ayɛ kusuu no hyɛn dissolution tank no mu na wɔde NaOH aduru bi gu mu, na wɔde filtration yi nneɛma a entumi nsu no fi hɔ. Wɔde toluene yii filtrate no mu bio de nyaa ahoɔden denam-aduru benzothiazole ne tar afoforo so. Toluene layer no hyɛn solvent recovery nhyehyɛe no mu na ama benzene asan aba. Nsu a ɛwɔ mu no yɛ m sodium nkyene a wɔde afra. Sɛnea nneɛma a efi M a ɛwɔ ase no ahiade te no, wobetumi de adi dwuma tẽẽ bere a wɔde ahyɛ mu no akyi, na wobetumi de acid ayɛ no acid nso, na afei wɔama ayɛ kusuu na ama wɔanya ahwehwɛ M a ɛyɛ nwunu.

Akwan a wɔbɛfa so atew ɛka so:

Wɔde By{0}}aduru benzothiazole no san kɔɔ adeyɛ anwenne no mu. Nea edi kan ne sɛ wobɛsiesie by-aduru tar no, ayi benzothiazole no denam-aduru no so, na afei: san fa kɔ reactor no so. Nea ɛto so abien ne sɛ wɔde aduru a wɔde siw ano no di dwuma de san nya M a wɔayɛ no yiye no, na wɔkwati sɛ wɔde nnuru a wɔde yɛ nneɛma foforo no bedi dwuma a ɛho nhia, na wɔde ɔkwan a ɛyɛ mmerɛw na ɛyɛ yiye a wɔfa so yɛ mfiridwuma. The by-product tar a ɛwɔ m no mu no yɛ benzothiazole dodow no ara, na akyi, thioresordiurea ne nea ɛtete saa di akyi. Sɛnea nhoma ahorow kyerɛ no, benzothiazole yɛ ade a efi M. benzothiazole mu ba na thioresorthene tumi yɛ M denam S ne CS2/s a wɔde ka ho no so.

Nneɛma a wɔde yɛ ade a wɔde yɛ ade no ho nhyehyɛe:

Wɔde solvent extraction di dwuma de gye denam-aduru benzothiazole no so na wɔde yɛ m sodium nkyene no yiye. Nneɛma a wɔde yɛ aduru a wɔde di dwuma no betumi ayɛ: monochlorobenzene, O-dichlorobenzene, toluene, benzene, cs2 ne polychloroethane.

Nneɛma a wɔde yi fi mu:

Wɔ bere a wɔreyi no mu no, wɔde M a wɔanhwie mu no kaa nsu a ɛyɛ hyew no ho nkakrankakra, na wɔkanyan no denneennen wɔ ade a ɛma ɛyɛ adwuma no anim, afei wɔde aduru a wɔfrɛ no organic solvent kaa ho, na wɔtoaa so kankan wɔ emulsification no ho kosii sɛ ɔhyew no duu 170℃.

Nneɛma a ɛma ɛyɛ adwuma wɔ hɔ ne sodium dodecylbenzenesulfonate, sodium nonylbenzenesulfonate, ammonium dibutyldodecylbenzenesulfonate, alkali dade nkyene a ɛyɛ srade a wɔde sulfonated ayɛ, alkali dade samina, ne nea ɛtete saa. Sɛ wɔde ionic surfactant di dwuma a, bere a wɔayi afi mu akyi no, wɔde aduru no fã a edi kan no yiyi mu na wɔma ɛyɛ acid ma ɛyɛ 3-4.

Aniline kwan no gyina aniline, CS2 ne S. Esiane sɛ CS2 yɛ nnuru a ɛyɛ hu a ɛyɛ hu na ɛpae nti, ɛnyɛ mmerɛw koraa sɛ wode bedi dwuma. Adwumakuw no abɔ amanneɛ sɛ wɔde aniline, n, n’-dimethylformamide ne S. Nneɛma a wɔde yɛ nneɛma a ɛma nneɛma yɛ adwuma no yɛ ade a wɔde yɛ nneɛma a wɔde yɛ nneɛma a wɔde yɛ nneɛma a wɔde yɛ nneɛma a wɔde yɛ nneɛma a wɔde yɛ nneɛma a wɔde yɛ nneɛma. Ɔhyew a ɛyɛ adwuma no yɛ 200-300℃C, ɔhyew a eye sen biara no yɛ 225-275℃C, nhyɛso no yɛ 3.45-4.83 MPa (gauge pressure), na adeyɛ bere no yɛ bɛyɛ 12 h, nanso ɔkwan no aba no sua koraa, 66% pɛ.

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