摘要:
There is provided a crystallization-resistant disproportionated rosin prepared by heating a rosin material at temperatures between 250*C. and 275*C. in the presence of from 0.3 percent to 1 percent of specific phenol sulfides, hereinafter defined, for a time sufficient to increase the 9,10-secode-hydroabietic acid content to at least about 5 percent.
摘要:
A CONTINUOUS PROCESS IS DESCRIBED FOR THE ISOMERIZATION OF A-PINENE, B-PINENE, OR TURPENTINE, BY MEANS OF 13X ZEOLITE CATALYST, TO GIVE AN ISOMERIZATE CONTAINING PREDOMINANTLY DEPENTENE AND MINOR AMOUNTS OF TERPINOLENE AND CAMPHENE.
摘要:
A method for producing dipentene is given whereby a terpene containing feed is isomerized at a temperature of between 140* and 200* C. in the presence of an alkali metal containing aluminosilicate catalysts of the 13X-type which has been activated by water extraction.