公开(公告)号：US5205964A

公开(公告)日：1993-04-27

申请号：US789521

申请日：1991-11-07

申请人： W. Kirk Stephenson ,  J. Derwin DeShazo

发明人： W. Kirk Stephenson ,  J. Derwin DeShazo

IPC分类号： B01D17/04 ,  B01D17/05 ,  C08G8/28 ,  C10G33/04

CPC分类号： C10G33/04 ,  B01D17/047 ,  C08G8/28 ,  Y10S507/921

摘要： A method of breaking crude oil emulsions using a water-in-oil emulsion breaker obtained by the reaction, in anhydrous conditions, for at least one hour, of an alkyl substituted phenol-formaldehyde polymer having the structure: ##STR1## wherein R is a linear or branched alkyl group having from 4-20 carbon atoms, and wherein m and n are both independent integers, the sum of which is sufficient to achieve a molecular weight of at least 1000 and further that m, but not n, may be zero with (b) ethylene carbonate, said reaction being further accomplished in a common oleophilic solvent having a boiling point of at least 180.degree. C., the reaction further at a temperature of at least 160.degree. C. in the presence of an alkaline catalyst, said catalyst being present at a concentration, based on total weight of reactants a & b, of at least about 0.1 weight percent.

摘要翻译： 一种使用油包水型破乳剂破碎原油乳液的方法，其通过在无水条件下反应至少1小时得到具有以下结构的烷基取代的酚醛聚合物：其中 R是具有4-20个碳原子的直链或支链烷基，并且其中m和n都是独立的整数，其总和足以达到至少1000的分子量，而且m和n不是n， （b）碳酸亚乙酯可以为零，所述反应在沸点为至少180℃的普通亲油溶剂中进一步完成，反应在至少160℃的温度下，在 碱性催化剂，所述催化剂以基于反应物a＆b的总重量的至少约0.1重量％的浓度存在。