Rubber acelerator MBT(M)

Descjumtion:

MBT(M)

Accelerator Aceleratory Chemical Mying	2-Mercaptobenzothaizole
Molecular Formula	C7H5NS2
shamu shamawt ai lam
Molecular n-gun	167.26
Hkap la ai	1.42
NO CHYUM AI.	149-30-4
Matep	25kg/bag
Storage Life	shata 24

Hkrang shapraw ai lam:

Raw material lam hku yu yang, madung gaw:

1) Aniline ladat;

2) o-}ni myit ai chloride ladat;

3) N{1}}methyline ladat;

4) N,N{1}} kaw n-ga, yakhkak ai ladat;

5) dimethylamine ladat;

6) haloaniline ladat;

7) benzothiazole ladat;

8) o{{1}chlorothiophenol ladat;

9) Nitrobenzene ladat hte dai hte bung ai.

Rubber vulcanization accelerator M a laksan hpawng de ai lam gaw: molten sulfur, aniline, aniline, CS2, benzothiazole hpe n-gun ja ai n-gun hte n-gun n-gun 250℃C hta jat bang da ai, n-gun gaw 5.87 MPa rai nga ai, n-gun dat ngut ai hpang, n-gun dat hpe shapraw kau ai, n-gun dat ni hpe shapraw kau nna, n-gun n rawng ai CS2 gaw sulfur hpe bai hkap la ai lam de shang wa ai. unit hte CS2 hpe bai gram lajang ai unit. Dai molten M gaw hka lim ai tank de shang nna NaOH hka hpe garan kau nna, n-gun n rawng ai arai hpe hka ja ai hku nna shaw kau ai. Dai filtrate hpe - a arai ni hpe bai lu la na matu toluene hte shaw la ai. Toluene layer gaw benzene hpe bai gram lajang na matu hka ja ai tsi hpe bai gram lajang ai lam de shang wa ai. Hka layer gaw M sodium sau ntsin re. Lawu na M derivative arung arai ni a ra kadawn ai lam ni hte maren, n-gun dat ngut ai hpang hkrak sha lang mai ai, dai hpe mung acid hte acidified galaw mai ai, dai hpang katsi ai crystal M.

Manu jahpu hpe shayawm na matu ladat ni:

Dai hpang, n-gun rawng ai benzothiazole hpe bai nhtang jaw ai. Shawng nnan na gaw, by- product tar hpe gram lajang nna, bellzothiazole hpe - product hku nna shaw la nna, dai hpang: reactor de bai nhtang wa na matu re. Lahkawng ngu na gaw, dai hka htung hpe jai lang nna, gram lajang da ai crude M hpe bai lu la na matu, chemical refining galaw ai lam hpe n ra ai sha jai lang ai lam hpe koi gam na matu, hpaga lam galaw shapraw na matu asan sha, mai byin ai ladat hpe jaw ya na matu re. M hpe galaw shapraw ai lam hta by{6}}} arung arai tar gaw law malawng benzothiazole rai nna, dai hpang aniline, thioresordiurea hte dai hte bung ai lam ni hpe galaw ai. Laika buk ni hta tsun da ai hte maren, benzothizole gaw M. Benzothiazole a lapran na arai langai rai nna, thioresorthene gaw M hpe S hte CS2/S hpe jat bang nna M byin pru wa lu ai.

Reaction mixture hpe bai gram lajang ai:

Solvent shaw la ai lam hpe jai lang nna, - hpe shapraw ai benzothiazole hpe bai lu la na matu hte M sodium sau hpe gram lajang na matu jai lang ai. Dai hka htung hpe lang ai gaw: monochlorobenzene, o{2}}dichlorobenzene, toluene, benzene, CS2 hte polychlorothane.

hka shaw ai lam:

Hka lum ai aten hta, hka lum ai hka hta n-gun n rawng ai M hpe loi loi hte jat bang nna, surfactant langai mi nga ai shara hta n-gun ja ai hku shingjawng ai, dai hpang organic solvent hpe jat bang nna, nbung katsi ai lam 170℃du hkra, n-gun rawng ai lam hta matut nna n-gun rawng ai.

Ndai surfactants ni gaw sodium dodecylbenzenesulfonate, sodium n-gun n-gun n-rawng ai, ammonium n-gun n-gun n-gun n-rawng ai dibuylbenzenesufeverate, sulfonated sau lu ai alkali nhprang dat, alkali magri sau, dai hte bung ai ni rai ma ai. ionic surfactant hpe lang ai shaloi, shaw la ngut ai hpang, shawng na daw hpe 3-4 pH de filter galaw nna acid bang ai.

Aniline ladat gaw aniline, CS2 hte S ni hpe madung tawn nna CS2 gaw wan hkru chye ai hte bawm kapaw chye ai hkrit tsang hpa chemical re majaw, lang na matu grai n mai byin ai. Company gaw aniline, N’{4}}dimethylformamide hte S hpe lang ai lam hpe tsun da ai. 200-300℃C, n-gun kaja ai nbung gaw 225-275℃C rai nna, n-gun gaw 3.45-4.83 MPa (gauge pressure) rai nna, n-gun gaw 12 h daram rai nga ai, raitim, ladat a n-gun gaw nau n law ai, 66% sha rai nga ai.

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