品牌:黑马 | 规格:F7126 | 材质:F7126 |
产地:德国 |
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2、水解
在160℃~165℃的磺化温度下产生大约15%的α-萘磺酸,由于α-萘磺酸活性较大,它存在会影响以后的缩合反应,应该将其转化或除去。α-萘磺酸在120℃时极易水解,而β-萘磺酸在此温度下比较稳定,因此可以通过水解反应除去α-萘磺酸。开启循环水系统,并向反应釜内加水,控制温度在120℃左右,使α萘磺酸进行水解反应,水解产物为萘和硫酸,分离以后的产物可作为原料继续参与磺化反应。为保证水解反应完成,应保证水解时间在30分钟以上。水解反应结束后,通入蒸气将β-萘磺酸压入缩合反应釜内进行缩合反应。
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RAE 050-0000-003 GAS DETECTION LAMP PID 10.6EV 1/2-IN D589544
SCA 87282.000040 ADHESIVE HEATER ASSEMBLY D586281
STILLWATER A4000-1T TIP DRESSER ASSEMBLY D590997
STILLWATER A4000-1T TIP DRESSER ASSEMBLY D590996
NIBCO 9055950PC PC607 PRESSYSTEM 1-1/4IN 90DEG ELBOW D587782
HUBBELL HBLTT3B TRUKTRAK CABLE PROTECTION SYSTEM 36" x 20" x 3.05" D592887
HONEYWELL 6570010029 A7 ACTUATOR (A) D517774
LOCTITE 99112 NORDBAK HIGH TEMPERATURE WEARING EPOXY COMPOUND D534689
TENNANT 43592 38 IN SINGLE ROW SOFT SWEEPER BRUSH D581224
COZZINI EP-104012 901 GRINDER REDUCTION PLATE X 1.2MM D571777
FOSTER 4304 QUICK DISCONNECT ONE WAY SHUT-OFF 3/8IN NPT D568341
BABBITT CIRG-4.5 SIZE 4-1/2 CAST IRON ADJUSTABLE SPROCKET RIM D562279
GEA 221-588.07 TUCHENHAGEN 2-POSITION-STOP DS/KPL D559903
COUGAR D3-950 ELECTRIC VIBRATOR 950LBS 550/575V 3PH D564194
ATLAS COPCO 2906-0393-00 COMPRESSOR FILTER SERVICE KIT D561717
EMG EB 220-50/2 II W ELTMA ELECTRO-HYDRAULIC THRUSTOR 460V-AC 0.22KW D564932
ROBAR 5636 1740-1860 STAINLESS 3-SECTION 16IN D565306
ROBAR 5636 1720-1840 STAINLESS 3-SECTION 16IN D565308
JOHN CRANE LHXR-0625-CRN LEMCO HEAT EXCHANGER 260PSI SHELL 1500PSI COIL D594033
KADANT C37334G458 QUICK CONNECT SPRAY NOZZLE D594726
CUNO 7000203H010ER ELECTROPOR 30 IN FILTER CARTRIDGE 0.10UM D577109
TMI 999-00080 4EE13 CURTAIN WALL PARTITION 8FT HEIGHT X 12FT WIDTH D575128
INGERSOLL RAND 5BMGA12RH-5F AIR STARTER MOTOR 150PSI D592977
INGERSOLL RAND 37152436 PISTON D512313
UNITED CONVEYOR SK-1701-179/184 4-9IN BEVEL LOCKING CONNECTION KIT D586354
NIBCO PC611 PRESSYSTEM PRESS TEE 1 1/2 X 1 1/2 X 3/4IN D587742
INTERNATIONAL SEALSKIN 2 IN BLACK FLEXIBLE CONDUIT 50FT D563147
PUREGAS PCDA1112-118 120V-AC 35W 150PSI HEATLESS DRYER D514832
PUREGAS PCDA112M18C 115V-AC 35W 150PSI PURGE GAS GENERATOR D514827
INGERSOLL RAND 5BMGA56RH-3F AIR STARTER MOTOR 150PSI D585086