Natural Vanillin

Product introduction

Main purpose

1. as the consumption of essence, chemical essence, pharmaceutical intermediates.

2. is to obtain the powder, bean fragrant good spices. Often used for foundation incense. Can be widely used in almost all types, such as violet, orchid, sunflower, Oriental flavor. Doubles as a combinedl, isoeugenol benzyl ether, coumarin, musk and other is set incense, modifier and mixture, can also be used to cover up bad breath. In the consumption of tobacco flavor, tobacco use is also more widely, but also a large amount of. In vanilla beans, cream, chocolate, toffee aromas are without spices.
3. vanillin is China provision allowing the use of edible spices, can be used as a fixative, is the main raw materials of vanilla flavor. It can be directly used in biscuits, cakes, candy, drinks and other food flavoring. According to the normal production needs, the general in chocolate 970mg/kg; gum 270mg/kg; pastry, cookies 220mg/kg; candy 200mg/kg 150mg/kg; 95mg/kg; cold drinks in.
4. GB-2760-2011 provides for the use of edible spices. The dosage of 0.1% ~ 0.4%, cold drink of 0.01% ~ 0.3%, candy 0.2% ~ 0.8%, especially containing dairy products widely used in the preparation of vanilla, chocolate, butter flavor, amount of up to 25% ~ 30%, or directly to biscuits and cakes.
5. an important synthetic perfume, widely used in daily chemical products, for food, tobacco and alcohol use in essence. Larger dose in the food industry, used in the preparation of vanilla, chocolate, butter flavor, the amount can reach 25-30 percent, directly in biscuits, cakes, dosage of 0.1-0.4%, cold drink 0.01-0.3%, candy 0.2-0.8, especially is containing dairy products. For chemical analysis, protein nitrogen heterocyclic indene, benzene three phenol and tannic acid. In the pharmaceutical industry, for the production of antihypertensive drug methyldopa, catechol and DOPA drugs, Pirenoxine, diaveridine etc..
6. As a standard reagent for organic analysis
Production method: n, N-dimethyl aniline acidified with hydrochloric acid salt, sodium nitrite nitrification out of nitroso n, N-dimethyl amine hydrochloride. The guaiacol formaldehyde condensation, 41-43 C. Then benzene extraction. The first distillation, with benzene recrystallization, and then second distillation, water recrystallization. 50 dry finished product. Sulfite pulp waste liquid containing lignin sulfonate Bai Hua alcohol structure unit of oxidized under alkaline conditions, and then hydrolysis of vanillin.
Raw material consumption (kg / T): Yu Chuangmu phenol (98%) 1460 nitrite sodium 640n, N-dimethyl aniline (98%) 974 hydrochloride (30%) 6000 formaldehyde (99%) 320

Production method

Extracted from vanilla bean
By the o-anisidine by diazo hydrolysis into more guaiacol, in the presence of nitroso dimethylaniline and catalyst, and formaldehyde condensation, or react with chloroform in Catalyzed by potassium hydroxide and, after extraction separation, vacuum distillation and crystallization purification and. Can also be used for pulp waste, eugenol, guaiacol etc..
Take lignin as raw material
Pigment preparation of vanillin containing sulfite pulping waste liquor can be used in wood papermaking factory. The solid forms of the waste liquor are 12% ~ 10%, of which 40% ~ 50% are calcium lignin sulfonate.. The condensed wastewater to containing solid matter 40% ~ 50% and 25% of lignin amount of NaOH added, and heated to 160 to 175 DEG C (about 1.1 to 1.2 MPa), air oxidation 2h, generally up to lignin 8% ~ 11% conversion rate. Oxide with Benzene Extraction out of vanillin, and water vapor distillation method for the recovery of benzene; in oxides added sodium bisulfite bisulfite generation, and impurities separated, using sulphuric acid decomposition of a crude vanillin and finally by vacuum distillation and recrystallization to obtain the finished product.