公开(公告)号：US3755240A

公开(公告)日：1973-08-28

申请号：US3755240D

申请日：1970-12-14

Applicant: TEXACO AG

Inventor： LUCKER W ,  VIETZ H

IPC: B22C1/22 ,  B22C1/24 ,  B22C5/00 ,  C08J3/00 ,  C08L61/10 ,  C08G51/28 ,  C08G53/00

CPC classification number: C08J3/00 ,  B22C1/2253 ,  B22C1/24 ,  B22C5/00 ,  C08J2361/00

Abstract: Thermosetting pulverulent binders suitable for use in manufacturing foundry molds comprising (a) phenolformaldehyde novolak finely ground with hexamethylene-tetramine, (b) magnesium oxide and (c) mineral oil are prepared by spraying a pulverulent mixture of (a) and (b) maintained in a fluidized state with mineral oil.

Abstract translation: 适用于制造铸造模具的热固性粉状粘合剂包括（a）用六亚甲基四胺精细研磨的酚醛清漆溶剂，（b）氧化镁和（c）矿物油，通过喷雾（a）和（b）维持的 处于矿物油的流化状态。

公开(公告)号：US3794015A

公开(公告)日：1974-02-26

申请号：US3794015D

申请日：1971-11-04

Applicant: TEXACO AG

Inventor： VIETZ H

IPC: F23C3/00 ,  F23D14/00 ,  F24H1/24

CPC classification number: F23C3/004 ,  F23D14/00

Abstract: A heater comprises two concentric vertical tubes having a flame projecting down in the inner tube with the lower end of at least one of the tubes immersed in a tank of liquid, as a salt solution or an acid solution to be evaporated, condensed, and recirculated in the annulus between the tubes. Helical spiral vanes are formed in the annulus for delaying and spinning a thin, consistent film of the liquid over the contiguous surfaces of the tubes for producing considerably decreased operating temperatures of the tubes resulting in greatly decreased corrosion of and deposit formation on the heater.

Abstract translation: 加热器包括两个同心垂直的管，其具有在内管中向下突出的火焰，其中至少一个管的下端浸入液体罐中，作为盐溶液或酸溶液蒸发，冷凝和再循环 在管之间的环空中。 螺旋叶片形成在环形空间中，用于在管的连续表面上延迟和旋转液体的薄且一致的薄膜，以产生显着降低的管的操作温度，从而大大降低加热器上的腐蚀和沉积物形成。