Translate the given Spanish text to English

Example Input: Processes for upgrading resid hydrocarbon feeds are disclosed.
Example Output: Se describen procesos para enriquecer alimentaciones de hidrocarburos de residuo.

Example Input: The compounds may be useful as anti-fibrqtic agents.
Example Output: El compuesto puede ser útil como agentes anti-fibróticos.

Example Input: The amorphous precipitated silica composition has a refractive index of less than about 1.4387, a light transmittance of greater than about 48 %; and a Brass Einlehner abrasion value of greater than about 5 mg loss/100,000 rev.
Example Output:
La composicion de silice precipitada amorfa tiene un indice de refraccion menor a aproximadamente 1.4387, una transmision de luz mayor a aproximadamente 48%; y un valor de abrasion Brass Einlehner mayor a aproximadamente 5 mg de perdida/100,000 rev.