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2、水解
在160℃~165℃的磺化溫度下產生大約15%的α- 磺酸,由於α- 磺酸活性較大,它存在會影響以後的縮合反應,應該將其轉化或除去。α- 磺酸在120℃時極易水解,而β- 磺酸在此溫度下比較穩定,因此可以通過水解反應除去α- 磺酸。開啟循環水係統,並向反應釜內加水,控制溫度在120℃左右,使α 磺酸進行水解反應,水解產物為 和硫酸,分離以後的產物可作為原料繼續參與磺化反應。為保證水解反應完成,應保證水解時間在30分鐘以上。水解反應結束後,通入蒸氣將β- 磺酸壓入縮合反應釜內進行縮合反應。
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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